diff --git a/substrate/demo/runtime/wasm/Cargo.lock b/substrate/demo/runtime/wasm/Cargo.lock
index eeff3dee611df5d49c709fd046c1ba61b7c353c9..8893a5d7b583ac9a0c5b78ec91697dfcacda27df 100644
--- a/substrate/demo/runtime/wasm/Cargo.lock
+++ b/substrate/demo/runtime/wasm/Cargo.lock
@@ -1,25 +1,3 @@
-[[package]]
-name = "aho-corasick"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "ansi_term"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "arrayvec"
-version = "0.3.25"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "odds 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "arrayvec"
 version = "0.4.7"
@@ -35,8 +13,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -146,15 +122,6 @@ dependencies = [
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "env_logger"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "environmental"
 version = "0.1.0"
@@ -165,34 +132,12 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "plain_hasher 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "ethcore-bytes"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "ethcore-logger"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "arrayvec 0.3.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "isatty 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "fixed-hash"
 version = "0.1.3"
@@ -221,15 +166,6 @@ name = "gcc"
 version = "0.3.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "hashdb"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "heapsize"
 version = "0.4.2"
@@ -260,17 +196,6 @@ name = "integer-sqrt"
 version = "0.1.0"
 source = "git+https://github.com/paritytech/integer-sqrt-rs.git#f4cf61482096dc98c1273f46a10849d182b4c23c"
 
-[[package]]
-name = "isatty"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "keccak-hash"
 version = "0.1.0"
@@ -281,15 +206,6 @@ dependencies = [
  "tiny-keccak 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "kernel32-sys"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "lazy_static"
 version = "0.2.11"
@@ -321,33 +237,11 @@ dependencies = [
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "memchr"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "memory_units"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "memorydb"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "keccak-hash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "nodrop"
 version = "0.1.12"
@@ -366,11 +260,6 @@ dependencies = [
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "odds"
-version = "0.2.26"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "owning_ref"
 version = "0.3.3"
@@ -397,15 +286,6 @@ dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "parking_lot"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot_core 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "parking_lot"
 version = "0.5.4"
@@ -426,24 +306,6 @@ dependencies = [
  "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "patricia-trie"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-logger 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "keccak-hash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "memorydb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "triehash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "plain_hasher"
 version = "0.1.0"
@@ -532,36 +394,6 @@ dependencies = [
  "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.1.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "redox_termios"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "regex"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "regex-syntax"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "ring"
 version = "0.12.1"
@@ -906,10 +738,7 @@ name = "substrate-state-machine"
 version = "0.1.0"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex-literal 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "memorydb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "patricia-trie 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "substrate-primitives 0.1.0",
  "triehash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -932,35 +761,6 @@ dependencies = [
  "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "termion"
-version = "1.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "thread_local"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "time"
-version = "0.1.39"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "tiny-keccak"
 version = "1.4.0"
@@ -999,29 +799,11 @@ name = "unicode-xid"
 version = "0.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "unreachable"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "untrusted"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "utf8-ranges"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "void"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "wasmi"
 version = "0.1.2"
@@ -1032,11 +814,6 @@ dependencies = [
  "parity-wasm 0.27.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "winapi"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "winapi"
 version = "0.3.4"
@@ -1046,11 +823,6 @@ dependencies = [
  "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "winapi-build"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
@@ -1062,9 +834,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
-"checksum aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d6531d44de723825aa81398a6415283229725a00fa30713812ab9323faa82fc4"
-"checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
-"checksum arrayvec 0.3.25 (registry+https://github.com/rust-lang/crates.io-index)" = "06f59fe10306bb78facd90d28c2038ad23ffaaefa85bac43c8a434cde383334f"
 "checksum arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "a1e964f9e24d588183fcb43503abda40d288c8657dfc27311516ce2f05675aef"
 "checksum bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5442186ef6560f30f1ee4b9c1e4c87a35a6879d3644550cc248ec2b955eb5fcd"
 "checksum bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3c30d3802dfb7281680d6285f2ccdaa8c2d8fee41f93805dba5c4cf50dc23cf"
@@ -1077,41 +846,30 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a2f4a431c5c9f662e1200b7c7f02c34e91361150e382089a8f2dec3ba680cbda"
 "checksum either 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "740178ddf48b1a9e878e6d6509a1442a2d42fd2928aae8e7a6f8a36fb01981b3"
 "checksum elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "258ff6a9a94f648d0379dbd79110e057edbb53eb85cc237e33eadf8e5a30df85"
-"checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
 "checksum ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bcb5af77e74a8f70e9c3337e069c37bc82178ef1b459c02091f73c4ad5281eb5"
-"checksum ethcore-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3977c772cd6c5c22e1c7cfa208e4c3b746bd6c3a6c8eeec0999a6b2103015ad5"
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 "checksum fixed-hash 0.1.3 (git+https://github.com/rphmeier/primitives.git?branch=compile-for-wasm)" = "<none>"
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 "checksum integer-sqrt 0.1.0 (git+https://github.com/paritytech/integer-sqrt-rs.git)" = "<none>"
-"checksum isatty 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "8f2a233726c7bb76995cec749d59582e5664823b7245d4970354408f1d79a7a2"
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 "checksum memory_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "71d96e3f3c0b6325d8ccd83c33b28acb183edcb6c67938ba104ec546854b0882"
-"checksum memorydb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "013b7e4c5e10c764936ebc6bd3662d8e3c92292d267bf6a42ef3f5cad9c793ee"
 "checksum nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "9a2228dca57108069a5262f2ed8bd2e82496d2e074a06d1ccc7ce1687b6ae0a2"
 "checksum num-traits 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dee092fcdf725aee04dd7da1d21debff559237d49ef1cb3e69bcb8ece44c7364"
 "checksum num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c51a3322e4bca9d212ad9a158a02abc6934d005490c054a2778df73a70aa0a30"
-"checksum odds 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)" = "4eae0151b9dacf24fcc170d9995e511669a082856a91f958a2fe380bfab3fb22"
 "checksum owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "cdf84f41639e037b484f93433aa3897863b561ed65c6e59c7073d7c561710f37"
 "checksum parity-wasm 0.27.6 (registry+https://github.com/rust-lang/crates.io-index)" = "bd4dc02a80a0315b109e48992c46942c79bcdb8fac416dd575d330ed9ced6cbd"
 "checksum parity-wasm 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)" = "41083957b80abb8a01fac4d2773d5f92653aed8f0b740c8d3da1da62c7857abe"
-"checksum parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "149d8f5b97f3c1133e3cfcd8886449959e856b557ff281e292b733d7c69e005e"
 "checksum parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9fd9d732f2de194336fb02fe11f9eed13d9e76f13f4315b4d88a14ca411750cd"
 "checksum parking_lot_core 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "9f35048d735bb93dd115a0030498785971aab3234d311fbe273d020084d26bd8"
-"checksum patricia-trie 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f1e2f638d79aba5c4a71a4f373df6e3cd702250a53b7f0ed4da1e2a7be9737ae"
 "checksum plain_hasher 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "83ae80873992f511142c07d0ec6c44de5636628fdb7e204abd655932ea79d995"
 "checksum proc-macro-hack 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3ba8d4f9257b85eb6cdf13f055cea3190520aab1409ca2ab43493ea4820c25f0"
 "checksum proc-macro-hack-impl 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d5cb6f960ad471404618e9817c0e5d10b1ae74cfdf01fab89ea0641fe7fb2892"
@@ -1121,10 +879,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eba5f8cb59cc50ed56be8880a5c7b496bfd9bd26394e176bc67884094145c2c5"
 "checksum rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b614fe08b6665cb9a231d07ac1364b0ef3cb3698f1239ee0c4c3a88a524f54c8"
 "checksum rayon-core 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e64b609139d83da75902f88fd6c01820046840a18471e4dfcd5ac7c0f46bea53"
-"checksum redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "0d92eecebad22b767915e4d529f89f28ee96dbbf5a4810d2b844373f136417fd"
-"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
-"checksum regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "744554e01ccbd98fff8c457c3b092cd67af62a555a43bfe97ae8a0451f7799fa"
-"checksum regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8e931c58b93d86f080c734bfd2bce7dd0079ae2331235818133c8be7f422e20e"
 "checksum ring 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6f7d28b30a72c01b458428e0ae988d4149c20d902346902be881e3edc4bb325c"
 "checksum rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "babe6fce20c0ca9b1582998734c4569082d0ad08e43772a1c6c40aef4f106ef9"
 "checksum rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0ceb8ce7a5e520de349e1fa172baeba4a9e8d5ef06c47471863530bc4972ee1e"
@@ -1140,21 +894,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum stable_deref_trait 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "15132e0e364248108c5e2c02e3ab539be8d6f5d52a01ca9bbf27ed657316f02b"
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
 "checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
-"checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
-"checksum thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "279ef31c19ededf577bfd12dfae728040a21f635b06a24cd670ff510edd38963"
-"checksum time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "a15375f1df02096fb3317256ce2cee6a1f42fc84ea5ad5fc8c421cfe40c73098"
 "checksum tiny-keccak 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e9241752647ca572f12c9b520a5d360d9099360c527770647e694001646a1d0"
 "checksum triehash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9291c7f0fae44858b5e087dd462afb382354120003778f1695b44aab98c7abd7"
 "checksum twox-hash 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "475352206e7a290c5fccc27624a163e8d0d115f7bb60ca18a64fc9ce056d7435"
 "checksum uint 0.1.2 (git+https://github.com/rphmeier/primitives.git?branch=compile-for-wasm)" = "<none>"
 "checksum unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
-"checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
 "checksum untrusted 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f392d7819dbe58833e26872f5f6f0d68b7bbbe90fc3667e98731c4a15ad9a7ae"
-"checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
-"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 "checksum wasmi 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "26b20dbeb7caee04597a5d2c93e2b3e64872c6ea2af732d7ad49dbec44067c35"
-"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "04e3bd221fcbe8a271359c04f21a76db7d0c6028862d1bb5512d85e1e2eb5bb3"
-"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/substrate/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.compact.wasm b/substrate/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.compact.wasm
index ea052a72d353999b54f1414fff0b0d7699f79253..d6ba9214c771daa22458f9cf06a04faa2805c3ad 100644
Binary files a/substrate/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.compact.wasm and b/substrate/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.compact.wasm differ
diff --git a/substrate/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm b/substrate/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm
index cd5b6a31d26c4090c62088a8dcdf3569bff16dd0..c423688bf4c6087f83b7c2e548e4a9cd18f5e55b 100755
Binary files a/substrate/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm and b/substrate/demo/runtime/wasm/target/wasm32-unknown-unknown/release/demo_runtime.wasm differ
diff --git a/substrate/polkadot/runtime/wasm/Cargo.lock b/substrate/polkadot/runtime/wasm/Cargo.lock
index b667adc8edcb71b902c5411f01bc1eb363f1fda8..caffc2fe58f86c24ea020984019eb1cf34c9f734 100644
--- a/substrate/polkadot/runtime/wasm/Cargo.lock
+++ b/substrate/polkadot/runtime/wasm/Cargo.lock
@@ -1,25 +1,3 @@
-[[package]]
-name = "aho-corasick"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "ansi_term"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "arrayvec"
-version = "0.3.25"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "odds 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "arrayvec"
 version = "0.4.7"
@@ -35,8 +13,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -111,15 +87,6 @@ dependencies = [
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "env_logger"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "environmental"
 version = "0.1.0"
@@ -130,34 +97,12 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "plain_hasher 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "ethcore-bytes"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "ethcore-logger"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "arrayvec 0.3.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "isatty 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "fixed-hash"
 version = "0.1.3"
@@ -186,15 +131,6 @@ name = "gcc"
 version = "0.3.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "hashdb"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "heapsize"
 version = "0.4.2"
@@ -225,17 +161,6 @@ name = "integer-sqrt"
 version = "0.1.0"
 source = "git+https://github.com/paritytech/integer-sqrt-rs.git#f4cf61482096dc98c1273f46a10849d182b4c23c"
 
-[[package]]
-name = "isatty"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "keccak-hash"
 version = "0.1.0"
@@ -246,15 +171,6 @@ dependencies = [
  "tiny-keccak 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "kernel32-sys"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "lazy_static"
 version = "0.2.11"
@@ -286,33 +202,11 @@ dependencies = [
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "memchr"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "memory_units"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "memorydb"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "keccak-hash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "nodrop"
 version = "0.1.12"
@@ -331,11 +225,6 @@ dependencies = [
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "odds"
-version = "0.2.26"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "owning_ref"
 version = "0.3.3"
@@ -362,15 +251,6 @@ dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "parking_lot"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot_core 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "parking_lot"
 version = "0.5.4"
@@ -391,24 +271,6 @@ dependencies = [
  "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "patricia-trie"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-logger 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "keccak-hash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "memorydb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "triehash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "plain_hasher"
 version = "0.1.0"
@@ -532,36 +394,6 @@ dependencies = [
  "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.1.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "redox_termios"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "regex"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "regex-syntax"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "ring"
 version = "0.12.1"
@@ -906,10 +738,7 @@ name = "substrate-state-machine"
 version = "0.1.0"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex-literal 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "memorydb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "patricia-trie 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "substrate-primitives 0.1.0",
  "triehash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -932,35 +761,6 @@ dependencies = [
  "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "termion"
-version = "1.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "thread_local"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "time"
-version = "0.1.39"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "tiny-keccak"
 version = "1.4.0"
@@ -999,29 +799,11 @@ name = "unicode-xid"
 version = "0.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "unreachable"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "untrusted"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "utf8-ranges"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "void"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "wasmi"
 version = "0.1.2"
@@ -1032,11 +814,6 @@ dependencies = [
  "parity-wasm 0.27.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "winapi"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "winapi"
 version = "0.3.4"
@@ -1046,11 +823,6 @@ dependencies = [
  "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "winapi-build"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
@@ -1062,9 +834,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
-"checksum aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d6531d44de723825aa81398a6415283229725a00fa30713812ab9323faa82fc4"
-"checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
-"checksum arrayvec 0.3.25 (registry+https://github.com/rust-lang/crates.io-index)" = "06f59fe10306bb78facd90d28c2038ad23ffaaefa85bac43c8a434cde383334f"
 "checksum arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "a1e964f9e24d588183fcb43503abda40d288c8657dfc27311516ce2f05675aef"
 "checksum bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5442186ef6560f30f1ee4b9c1e4c87a35a6879d3644550cc248ec2b955eb5fcd"
 "checksum bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3c30d3802dfb7281680d6285f2ccdaa8c2d8fee41f93805dba5c4cf50dc23cf"
@@ -1077,41 +846,30 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a2f4a431c5c9f662e1200b7c7f02c34e91361150e382089a8f2dec3ba680cbda"
 "checksum either 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "740178ddf48b1a9e878e6d6509a1442a2d42fd2928aae8e7a6f8a36fb01981b3"
 "checksum elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "258ff6a9a94f648d0379dbd79110e057edbb53eb85cc237e33eadf8e5a30df85"
-"checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
 "checksum ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bcb5af77e74a8f70e9c3337e069c37bc82178ef1b459c02091f73c4ad5281eb5"
-"checksum ethcore-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3977c772cd6c5c22e1c7cfa208e4c3b746bd6c3a6c8eeec0999a6b2103015ad5"
-"checksum ethcore-logger 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1fd5813e49546030be7d134e775088d56b8ff4ab60617b90e93d4f0513da4c5b"
 "checksum fixed-hash 0.1.3 (git+https://github.com/rphmeier/primitives.git?branch=compile-for-wasm)" = "<none>"
 "checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
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 "checksum memory_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "71d96e3f3c0b6325d8ccd83c33b28acb183edcb6c67938ba104ec546854b0882"
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 "checksum num-traits 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dee092fcdf725aee04dd7da1d21debff559237d49ef1cb3e69bcb8ece44c7364"
 "checksum num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c51a3322e4bca9d212ad9a158a02abc6934d005490c054a2778df73a70aa0a30"
-"checksum odds 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)" = "4eae0151b9dacf24fcc170d9995e511669a082856a91f958a2fe380bfab3fb22"
 "checksum owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "cdf84f41639e037b484f93433aa3897863b561ed65c6e59c7073d7c561710f37"
 "checksum parity-wasm 0.27.6 (registry+https://github.com/rust-lang/crates.io-index)" = "bd4dc02a80a0315b109e48992c46942c79bcdb8fac416dd575d330ed9ced6cbd"
 "checksum parity-wasm 0.30.0 (registry+https://github.com/rust-lang/crates.io-index)" = "41083957b80abb8a01fac4d2773d5f92653aed8f0b740c8d3da1da62c7857abe"
-"checksum parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "149d8f5b97f3c1133e3cfcd8886449959e856b557ff281e292b733d7c69e005e"
 "checksum parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9fd9d732f2de194336fb02fe11f9eed13d9e76f13f4315b4d88a14ca411750cd"
 "checksum parking_lot_core 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "9f35048d735bb93dd115a0030498785971aab3234d311fbe273d020084d26bd8"
-"checksum patricia-trie 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f1e2f638d79aba5c4a71a4f373df6e3cd702250a53b7f0ed4da1e2a7be9737ae"
 "checksum plain_hasher 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "83ae80873992f511142c07d0ec6c44de5636628fdb7e204abd655932ea79d995"
 "checksum proc-macro-hack 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3ba8d4f9257b85eb6cdf13f055cea3190520aab1409ca2ab43493ea4820c25f0"
 "checksum proc-macro-hack-impl 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d5cb6f960ad471404618e9817c0e5d10b1ae74cfdf01fab89ea0641fe7fb2892"
@@ -1121,10 +879,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eba5f8cb59cc50ed56be8880a5c7b496bfd9bd26394e176bc67884094145c2c5"
 "checksum rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b614fe08b6665cb9a231d07ac1364b0ef3cb3698f1239ee0c4c3a88a524f54c8"
 "checksum rayon-core 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e64b609139d83da75902f88fd6c01820046840a18471e4dfcd5ac7c0f46bea53"
-"checksum redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "0d92eecebad22b767915e4d529f89f28ee96dbbf5a4810d2b844373f136417fd"
-"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
-"checksum regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "744554e01ccbd98fff8c457c3b092cd67af62a555a43bfe97ae8a0451f7799fa"
-"checksum regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8e931c58b93d86f080c734bfd2bce7dd0079ae2331235818133c8be7f422e20e"
 "checksum ring 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6f7d28b30a72c01b458428e0ae988d4149c20d902346902be881e3edc4bb325c"
 "checksum rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "babe6fce20c0ca9b1582998734c4569082d0ad08e43772a1c6c40aef4f106ef9"
 "checksum rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0ceb8ce7a5e520de349e1fa172baeba4a9e8d5ef06c47471863530bc4972ee1e"
@@ -1140,21 +894,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum stable_deref_trait 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "15132e0e364248108c5e2c02e3ab539be8d6f5d52a01ca9bbf27ed657316f02b"
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
 "checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
-"checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
-"checksum thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "279ef31c19ededf577bfd12dfae728040a21f635b06a24cd670ff510edd38963"
-"checksum time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "a15375f1df02096fb3317256ce2cee6a1f42fc84ea5ad5fc8c421cfe40c73098"
 "checksum tiny-keccak 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e9241752647ca572f12c9b520a5d360d9099360c527770647e694001646a1d0"
 "checksum triehash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9291c7f0fae44858b5e087dd462afb382354120003778f1695b44aab98c7abd7"
 "checksum twox-hash 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "475352206e7a290c5fccc27624a163e8d0d115f7bb60ca18a64fc9ce056d7435"
 "checksum uint 0.1.2 (git+https://github.com/rphmeier/primitives.git?branch=compile-for-wasm)" = "<none>"
 "checksum unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
-"checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
 "checksum untrusted 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f392d7819dbe58833e26872f5f6f0d68b7bbbe90fc3667e98731c4a15ad9a7ae"
-"checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
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-"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
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diff --git a/substrate/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm b/substrate/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm
index a45d2f1b65f018a066cf0e0e1fdf8e58b42cf49d..5138a9b48a15c62d6d5f98567a66874254105b0d 100644
Binary files a/substrate/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm and b/substrate/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm differ
diff --git a/substrate/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm b/substrate/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm
index 48622a5114b17fc62b431ed69c4d79267323c94a..d0c47ee76f2311eb9c7c74d62822980b66e3cefc 100755
Binary files a/substrate/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm and b/substrate/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm differ
diff --git a/substrate/substrate/executor/wasm/target/wasm32-unknown-unknown/release/runtime_test.compact.wasm b/substrate/substrate/executor/wasm/target/wasm32-unknown-unknown/release/runtime_test.compact.wasm
index aac5a0d9da4955f37ab5dd7d137f3ae6baa4fc83..e0410bea72847b16cbd9152a6c507df60e96a706 100644
Binary files a/substrate/substrate/executor/wasm/target/wasm32-unknown-unknown/release/runtime_test.compact.wasm and b/substrate/substrate/executor/wasm/target/wasm32-unknown-unknown/release/runtime_test.compact.wasm differ
diff --git a/substrate/substrate/executor/wasm/target/wasm32-unknown-unknown/release/runtime_test.wasm b/substrate/substrate/executor/wasm/target/wasm32-unknown-unknown/release/runtime_test.wasm
index c755d6e9e58fdb840fcb06958e930b3c48d60981..1bca2b9bb5cb8ff3ef40546d1b05af72d237e61b 100755
Binary files a/substrate/substrate/executor/wasm/target/wasm32-unknown-unknown/release/runtime_test.wasm and b/substrate/substrate/executor/wasm/target/wasm32-unknown-unknown/release/runtime_test.wasm differ
diff --git a/substrate/substrate/runtime/staking/src/contract.rs b/substrate/substrate/runtime/staking/src/contract.rs
index 41a9ddef6d95a92f655fa222a5bfaa0b685700c0..f3ac2816a63c4e582e4af0a7e82574586360450a 100644
--- a/substrate/substrate/runtime/staking/src/contract.rs
+++ b/substrate/substrate/runtime/staking/src/contract.rs
@@ -19,7 +19,6 @@
 // TODO: Extract to it's own crate?
 
 use codec::Slicable;
-use primitives::traits::As;
 use rstd::prelude::*;
 use sandbox;
 use {AccountDb, Module, OverlayAccountDb, Trait};
@@ -190,15 +189,19 @@ pub(crate) fn execute<'a, 'b: 'a, T: Trait>(
 	fn ext_transfer<T: Trait>(e: &mut ExecutionExt<T>, args: &[sandbox::TypedValue]) -> Result<sandbox::ReturnValue, sandbox::HostError> {
 		let transfer_to_ptr = args[0].as_i32().unwrap() as u32;
 		let transfer_to_len = args[1].as_i32().unwrap() as u32;
-		let value = args[2].as_i32().unwrap() as u64;
+		let value_ptr = args[2].as_i32().unwrap() as u32;
+		let value_len = args[3].as_i32().unwrap() as u32;
 
-		// TODO: slicable
 		let mut transfer_to = Vec::new();
 		transfer_to.resize(transfer_to_len as usize, 0);
 		e.memory().get(transfer_to_ptr, &mut transfer_to)?;
-		let value = T::Balance::sa(value as usize);
 		let transfer_to = T::AccountId::decode(&mut &transfer_to[..]).unwrap();
 
+		let mut value_buf = Vec::new();
+		value_buf.resize(value_len as usize, 0);
+		e.memory().get(value_ptr, &mut value_buf)?;
+		let value = T::Balance::decode(&mut &value_buf[..]).unwrap();
+
 		let account = e.account().clone();
 		if let Some(commit_state) =
 			Module::<T>::effect_transfer(&account, &transfer_to, value, e.account_db())
@@ -213,10 +216,13 @@ pub(crate) fn execute<'a, 'b: 'a, T: Trait>(
 	fn ext_create<T: Trait>(e: &mut ExecutionExt<T>, args: &[sandbox::TypedValue]) -> Result<sandbox::ReturnValue, sandbox::HostError> {
 		let code_ptr = args[0].as_i32().unwrap() as u32;
 		let code_len = args[1].as_i32().unwrap() as u32;
-		let value = args[2].as_i32().unwrap() as u32;
+		let value_ptr = args[2].as_i32().unwrap() as u32;
+		let value_len = args[3].as_i32().unwrap() as u32;
 
-		// TODO: slicable
-		let value = T::Balance::sa(value as usize);
+		let mut value_buf = Vec::new();
+		value_buf.resize(value_len as usize, 0);
+		e.memory().get(value_ptr, &mut value_buf)?;
+		let value = T::Balance::decode(&mut &value_buf[..]).unwrap();
 
 		let mut code = Vec::new();
 		code.resize(code_len as usize, 0u8);
@@ -506,13 +512,10 @@ mod tests {
 		assert_matches!(r, Err(Error::Memory));
 	}
 
-	#[test]
-	fn contract_transfer() {
-		let code_transfer = wabt::wat2wasm(
-			r#"
+	const CODE_TRANSFER: &str = r#"
 (module
-    ;; ext_transfer(transfer_to: u32, transfer_to_len: u32, value: u32)
-    (import "env" "ext_transfer" (func $ext_transfer (param i32 i32 i32)))
+    ;; ext_transfer(transfer_to: u32, transfer_to_len: u32, value_ptr: u32, value_len: u32)
+    (import "env" "ext_transfer" (func $ext_transfer (param i32 i32 i32 i32)))
 
     (import "env" "memory" (memory 1 1))
 
@@ -520,16 +523,24 @@ mod tests {
         (call $ext_transfer
             (i32.const 4)  ;; Pointer to "Transfer to" address.
             (i32.const 8)  ;; Length of "Transfer to" address.
-            (i32.const 6)  ;; value to transfer
+            (i32.const 12)  ;; Pointer to the buffer with value to transfer
+			(i32.const 8)   ;; Length of the buffer with value to transfer.
         )
     )
 
     ;; Destination AccountId to transfer the funds.
     ;; Represented by u64 (8 bytes long) in little endian.
     (data (i32.const 4) "\02\00\00\00\00\00\00\00")
+
+    ;; Amount of value to transfer.
+	;; Represented by u64 (8 bytes long) in little endian.
+    (data (i32.const 12) "\06\00\00\00\00\00\00\00")
 )
-		"#,
-		).unwrap();
+"#;
+
+	#[test]
+	fn contract_transfer() {
+		let code_transfer = wabt::wat2wasm(CODE_TRANSFER).unwrap();
 
 		with_externalities(&mut new_test_ext(1, 3, 1, false), || {
 			<FreeBalance<Test>>::insert(0, 111);
@@ -546,61 +557,55 @@ mod tests {
 		});
 	}
 
-	fn escaped_bytestring(bytes: &[u8]) -> String {
-		use std::fmt::Write;
-		let mut result = String::new();
-		for b in bytes {
-			write!(result, "\\{:02x}", b).unwrap();
+	/// Returns code that uses `ext_create` runtime call.
+	///
+	/// Takes bytecode of the contract that needs to be deployed.
+	fn code_create(child_bytecode: &[u8]) -> String {
+		/// Convert a byte slice to a string with hex values.
+		///
+		/// Each value is preceeded with a `\` character.
+		fn escaped_bytestring(bytes: &[u8]) -> String {
+			use std::fmt::Write;
+			let mut result = String::new();
+			for b in bytes {
+				write!(result, "\\{:02x}", b).unwrap();
+			}
+			result
 		}
-		result
-	}
 
-	#[test]
-	fn contract_create() {
-		let code_transfer = wabt::wat2wasm(
-			r#"
+		format!(
+r#"
 (module
-    ;; ext_transfer(transfer_to: u32, transfer_to_len: u32, value: u32)
-    (import "env" "ext_transfer" (func $ext_transfer (param i32 i32 i32)))
+    ;; ext_create(code_ptr: u32, code_len: u32, value_ptr: u32, value_len: u32)
+    (import "env" "ext_create" (func $ext_create (param i32 i32 i32 i32)))
 
     (import "env" "memory" (memory 1 1))
 
     (func (export "call")
-        (call $ext_transfer
-            (i32.const 4)  ;; Pointer to "Transfer to" address.
-            (i32.const 8)  ;; Length of "Transfer to" address.
-            (i32.const 6)  ;; value to transfer
+        (call $ext_create
+            (i32.const 12)   ;; Pointer to `code`
+            (i32.const {code_len}) ;; Length of `code`
+            (i32.const 4)   ;; Pointer to the buffer with value to transfer
+			(i32.const 8)   ;; Length of the buffer with value to transfer
         )
     )
+	;; Amount of value to transfer.
+	;; Represented by u64 (8 bytes long) in little endian.
+	(data (i32.const 4) "\03\00\00\00\00\00\00\00")
 
-    ;; Destination AccountId to transfer the funds.
-    ;; Represented by u64 (8 bytes long) in little endian.
-    (data (i32.const 4) "\02\00\00\00\00\00\00\00")
+	;; Embedded wasm code.
+    (data (i32.const 12) "{escaped_bytecode}")
 )
-		"#,
-		).unwrap();
-
-		let code_create = wabt::wat2wasm(format!(
-			r#"
-(module
-    ;; ext_create(code_ptr: u32, code_len: u32, value: u32)
-    (import "env" "ext_create" (func $ext_create (param i32 i32 i32)))
-
-    (import "env" "memory" (memory 1 1))
+"#,
+			escaped_bytecode = escaped_bytestring(&child_bytecode),
+			code_len = child_bytecode.len(),
+		)
+	}
 
-    (func (export "call")
-        (call $ext_create
-            (i32.const 4)   ;; Pointer to `code`
-            (i32.const {code_length}) ;; Length of `code`
-            (i32.const 3)   ;; Value to transfer
-        )
-    )
-    (data (i32.const 4) "{escaped_code_transfer}")
-)
-			"#,
-			escaped_code_transfer = escaped_bytestring(&code_transfer),
-			code_length = code_transfer.len(),
-		)).unwrap();
+	#[test]
+	fn contract_create() {
+		let code_transfer = wabt::wat2wasm(CODE_TRANSFER).unwrap();
+		let code_create = wabt::wat2wasm(&code_create(&code_transfer)).unwrap();
 
 		with_externalities(&mut new_test_ext(1, 3, 1, false), || {
 			<FreeBalance<Test>>::insert(0, 111);
@@ -620,9 +625,10 @@ mod tests {
 		});
 	}
 
-	#[test]
-	fn contract_adder() {
-		let code_adder = wabt::wat2wasm(r#"
+	/// This code a value from the storage, increment it's first byte
+	/// and then stores it back in the storage.
+	const CODE_ADDER: &str =
+r#"
 (module
     ;; ext_set_storage(location_ptr: i32, value_non_null: bool, value_ptr: i32)
     (import "env" "ext_set_storage" (func $ext_set_storage (param i32 i32 i32)))
@@ -652,10 +658,14 @@ mod tests {
         )
     )
 
-    ;; Location of storage to put the data. 32 bytes.
+    ;; Location of storage to load/store the data. 32 bytes.
     (data (i32.const 4) "\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01")
 )
-		"#).unwrap();
+"#;
+
+	#[test]
+	fn contract_adder() {
+		let code_adder = wabt::wat2wasm(CODE_ADDER).unwrap();
 
 		with_externalities(&mut new_test_ext(1, 3, 1, false), || {
 			<FreeBalance<Test>>::insert(0, 111);
@@ -681,12 +691,10 @@ mod tests {
 		});
 	}
 
-	#[test]
-	fn contract_out_of_gas() {
-		// This code should make 100_000 iterations so it should
-		// consume more than 100_000 units of gas.
-		let code_loop = wabt::wat2wasm(
-			r#"
+	// This code should make 100_000 iterations so it should
+	// consume more than 100_000 units of gas.
+	const CODE_LOOP: &str =
+r#"
 (module
 	(func (export "call")
 		(local $i i32)
@@ -710,8 +718,11 @@ mod tests {
 		end
 	)
 )
-		"#,
-		).unwrap();
+"#;
+
+	#[test]
+	fn contract_out_of_gas() {
+		let code_loop = wabt::wat2wasm(CODE_LOOP).unwrap();
 
 		with_externalities(&mut new_test_ext(1, 3, 1, false), || {
 			// Set initial balances.
@@ -730,10 +741,8 @@ mod tests {
 		});
 	}
 
-	#[test]
-	fn contract_internal_mem() {
-		let code_mem = wabt::wat2wasm(
-			r#"
+	const CODE_MEM: &str =
+r#"
 (module
 	;; Internal memory is not allowed.
 	(memory 1 1)
@@ -742,8 +751,11 @@ mod tests {
 		nop
 	)
 )
-		"#,
-		).unwrap();
+"#;
+
+	#[test]
+	fn contract_internal_mem() {
+		let code_mem = wabt::wat2wasm(CODE_MEM).unwrap();
 
 		with_externalities(&mut new_test_ext(1, 3, 1, false), || {
 			// Set initial balances.
diff --git a/substrate/substrate/runtime/staking/src/lib.rs b/substrate/substrate/runtime/staking/src/lib.rs
index 742326a4f53c05cef7849bc914c7a080ec2f8d26..b1a9bae49fa6fc8cd196c32331e37fd9f6a68f7c 100644
--- a/substrate/substrate/runtime/staking/src/lib.rs
+++ b/substrate/substrate/runtime/staking/src/lib.rs
@@ -92,7 +92,7 @@ impl<Hashing, AccountId> ContractAddressFor<AccountId> for Hashing where
 
 pub trait Trait: system::Trait + session::Trait {
 	/// The balance of an account.
-	type Balance: Parameter + SimpleArithmetic + Default + Copy;
+	type Balance: Parameter + SimpleArithmetic + Slicable + Default + Copy;
 	type DetermineContractAddress: ContractAddressFor<Self::AccountId>;
 }
 
diff --git a/substrate/substrate/test-runtime/wasm/Cargo.lock b/substrate/substrate/test-runtime/wasm/Cargo.lock
index 20af98c6cd5d0dab8b8c02b64d04ccd3ae999a10..d58c8103989143da9f16ee4250408768f274db8f 100644
--- a/substrate/substrate/test-runtime/wasm/Cargo.lock
+++ b/substrate/substrate/test-runtime/wasm/Cargo.lock
@@ -1,25 +1,3 @@
-[[package]]
-name = "aho-corasick"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "ansi_term"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "arrayvec"
-version = "0.3.25"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "odds 0.2.26 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "arrayvec"
 version = "0.4.7"
@@ -35,8 +13,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -111,15 +87,6 @@ dependencies = [
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "env_logger"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "environmental"
 version = "0.1.0"
@@ -130,34 +97,12 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "plain_hasher 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "ethcore-bytes"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "ethcore-logger"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "arrayvec 0.3.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "isatty 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "fixed-hash"
 version = "0.1.3"
@@ -186,15 +131,6 @@ name = "gcc"
 version = "0.3.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "hashdb"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "heapsize"
 version = "0.4.2"
@@ -220,17 +156,6 @@ dependencies = [
  "proc-macro-hack 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "isatty"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "keccak-hash"
 version = "0.1.0"
@@ -241,25 +166,11 @@ dependencies = [
  "tiny-keccak 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "kernel32-sys"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "lazy_static"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "lazy_static"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "libc"
 version = "0.2.36"
@@ -281,33 +192,11 @@ dependencies = [
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "memchr"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "memory_units"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "memorydb"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "keccak-hash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "nodrop"
 version = "0.1.12"
@@ -321,11 +210,6 @@ dependencies = [
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "odds"
-version = "0.2.26"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "owning_ref"
 version = "0.3.3"
@@ -344,15 +228,6 @@ dependencies = [
  "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "parking_lot"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot_core 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "parking_lot"
 version = "0.5.4"
@@ -373,24 +248,6 @@ dependencies = [
  "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "patricia-trie"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-logger 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "keccak-hash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "memorydb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "triehash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "plain_hasher"
 version = "0.1.0"
@@ -469,36 +326,6 @@ dependencies = [
  "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.1.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "redox_termios"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "regex"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "regex-syntax"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "ring"
 version = "0.12.1"
@@ -660,10 +487,7 @@ name = "substrate-state-machine"
 version = "0.1.0"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex-literal 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "memorydb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "patricia-trie 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "substrate-primitives 0.1.0",
  "triehash 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -700,35 +524,6 @@ dependencies = [
  "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "termion"
-version = "1.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "thread_local"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "time"
-version = "0.1.39"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "tiny-keccak"
 version = "1.4.0"
@@ -767,29 +562,11 @@ name = "unicode-xid"
 version = "0.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "unreachable"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "untrusted"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "utf8-ranges"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "void"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "wasmi"
 version = "0.1.2"
@@ -800,11 +577,6 @@ dependencies = [
  "parity-wasm 0.27.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "winapi"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "winapi"
 version = "0.3.4"
@@ -814,11 +586,6 @@ dependencies = [
  "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "winapi-build"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
@@ -830,9 +597,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
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-"checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
-"checksum arrayvec 0.3.25 (registry+https://github.com/rust-lang/crates.io-index)" = "06f59fe10306bb78facd90d28c2038ad23ffaaefa85bac43c8a434cde383334f"
 "checksum arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "a1e964f9e24d588183fcb43503abda40d288c8657dfc27311516ce2f05675aef"
 "checksum bigint 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5442186ef6560f30f1ee4b9c1e4c87a35a6879d3644550cc248ec2b955eb5fcd"
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@@ -845,38 +609,26 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a2f4a431c5c9f662e1200b7c7f02c34e91361150e382089a8f2dec3ba680cbda"
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 "checksum elastic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "258ff6a9a94f648d0379dbd79110e057edbb53eb85cc237e33eadf8e5a30df85"
-"checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
 "checksum ethcore-bigint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bcb5af77e74a8f70e9c3337e069c37bc82178ef1b459c02091f73c4ad5281eb5"
-"checksum ethcore-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3977c772cd6c5c22e1c7cfa208e4c3b746bd6c3a6c8eeec0999a6b2103015ad5"
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-"checksum hashdb 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d97be07c358c5b461268b4ce60304024c5fa5acfd4bd8cd743639f0252003cf5"
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-"checksum parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "149d8f5b97f3c1133e3cfcd8886449959e856b557ff281e292b733d7c69e005e"
 "checksum parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9fd9d732f2de194336fb02fe11f9eed13d9e76f13f4315b4d88a14ca411750cd"
 "checksum parking_lot_core 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "9f35048d735bb93dd115a0030498785971aab3234d311fbe273d020084d26bd8"
-"checksum patricia-trie 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f1e2f638d79aba5c4a71a4f373df6e3cd702250a53b7f0ed4da1e2a7be9737ae"
 "checksum plain_hasher 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "83ae80873992f511142c07d0ec6c44de5636628fdb7e204abd655932ea79d995"
 "checksum proc-macro-hack 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3ba8d4f9257b85eb6cdf13f055cea3190520aab1409ca2ab43493ea4820c25f0"
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@@ -885,10 +637,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eba5f8cb59cc50ed56be8880a5c7b496bfd9bd26394e176bc67884094145c2c5"
 "checksum rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b614fe08b6665cb9a231d07ac1364b0ef3cb3698f1239ee0c4c3a88a524f54c8"
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-"checksum redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "0d92eecebad22b767915e4d529f89f28ee96dbbf5a4810d2b844373f136417fd"
-"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
-"checksum regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "744554e01ccbd98fff8c457c3b092cd67af62a555a43bfe97ae8a0451f7799fa"
-"checksum regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8e931c58b93d86f080c734bfd2bce7dd0079ae2331235818133c8be7f422e20e"
 "checksum ring 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6f7d28b30a72c01b458428e0ae988d4149c20d902346902be881e3edc4bb325c"
 "checksum rlp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "babe6fce20c0ca9b1582998734c4569082d0ad08e43772a1c6c40aef4f106ef9"
 "checksum rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0ceb8ce7a5e520de349e1fa172baeba4a9e8d5ef06c47471863530bc4972ee1e"
@@ -904,21 +652,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum stable_deref_trait 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "15132e0e364248108c5e2c02e3ab539be8d6f5d52a01ca9bbf27ed657316f02b"
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
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-"checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
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diff --git a/substrate/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.compact.wasm b/substrate/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.compact.wasm
index 130c248c11651298b8c57feb492e3b07d7b075e7..735f9ce000c992d0a33adcacafe7db0a758966f0 100644
Binary files a/substrate/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.compact.wasm and b/substrate/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.compact.wasm differ
diff --git a/substrate/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.wasm b/substrate/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.wasm
index 548f361da024fc2fc0fd959c6eab326a70a18823..43d690c3c894a3ecf1e39f525905474b78355b2a 100755
Binary files a/substrate/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.wasm and b/substrate/substrate/test-runtime/wasm/target/wasm32-unknown-unknown/release/substrate_test_runtime.wasm differ