* move to rust 2021

* rust 2021
MSRV 1.56.1

Co-authored-by: Andrew Jones <[email protected]>

Bumps [futures](https://github.com/rust-lang/futures-rs) from 0.3.18 to 0.3.19.
- [Release notes](https://github.com/rust-lang/futures-rs/releases)
- [Changelog](https://github.com/rust-lang/futures-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/futures-rs/compare/0.3.18...0.3.19

)

---
updated-dependencies:
- dependency-name: futures
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Bump heck from 0.3.3 to 0.4.0

Bumps [heck](https://github.com/withoutboats/heck) from 0.3.3 to 0.4.0.
- [Release notes](https://github.com/withoutboats/heck/releases)
- [Changelog](https://github.com/withoutboats/heck/blob/master/CHANGELOG.md)
- [Commits](https://github.com/withoutboats/heck/commits

)

---
updated-dependencies:
- dependency-name: heck
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

* Fix trait and method name changes

* Upper camel case

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andrew Jones <[email protected]>

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.130 to 1.0.131.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.130...v1.0.131

)

---
updated-dependencies:
- dependency-name: serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.72 to 1.0.73.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.72...v1.0.73

)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern

* Add `macos` CI stage

* Update to latest `binaryen`

* Format yml

* Ignore `.gitlab-ci.yml`

* Strip `.exe`

* Install dylib file

* Fix path

* Install `wasm-opt` via `npm`

* Remove cache, since it uses lockfiles

Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.50 to 1.0.51.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.50...1.0.51

)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Bump funty from 1.1.0 to 2.0.0

Bumps [funty](https://github.com/myrrlyn/funty) from 1.1.0 to 2.0.0.
- [Release notes](https://github.com/myrrlyn/funty/releases)
- [Changelog](https://github.com/myrrlyn/funty/blob/master/CHANGELOG.md)
- [Commits](https://github.com/myrrlyn/funty/commits

)

---
updated-dependencies:
- dependency-name: funty
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

* Stop pinning `funty` version

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Hernando Castano <[email protected]>

* Added `workspace` section to override parent `workspace`

* Apply suggestions from code review

Co-authored-by: Andrew Jones <[email protected]>

Co-authored-by: Andrew Jones <[email protected]>

Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.48 to 1.0.50.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.48...1.0.50

)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.71 to 1.0.72.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.71...v1.0.72

)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Bump ink! deps to rc7

* Update changelog

* Bump version to `0.16.0`

* Bump `metadata` version to `0.5.0`

* Reference new `metadata` version

* Expose public metadata fields

* Implement full metadata decoding

* Fix clippy warning

* Fix wasm serialization

* Add comments

* Added test

* Fmt

* Update CHANGELOG.md

Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.47 to 1.0.48.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.47...1.0.48

)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [futures](https://github.com/rust-lang/futures-rs) from 0.3.17 to 0.3.18.
- [Release notes](https://github.com/rust-lang/futures-rs/releases)
- [Changelog](https://github.com/rust-lang/futures-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/futures-rs/compare/0.3.17...0.3.18

)

---
updated-dependencies:
- dependency-name: futures
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Add core team as codeowners

* Fix typo

* Add CODEOWNERS file

* Fix syntax error

* Disable overflow checks

* Update changelog

Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.45 to 1.0.47.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.45...1.0.47

)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.70 to 1.0.71.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.70...v1.0.71

)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* `-Clinker-plugin-lto` reduced the size of my contract
From:
Original wasm size: 68.6K, Optimized: 31.9K

To:
Original wasm size: 67.2K, Optimized: 31.0K

* Compiler will use `-Clinker-plugin-lto` if `lto` is enabled

* Updated Unreleased section

* `-Clinker-plugin-lto` reduced the size of my contract
From:
Original wasm size: 68.6K, Optimized: 31.9K

To:
Original wasm size: 67.2K, Optimized: 31.0K

* Compiler will use `-Clinker-plugin-lto` if `lto` is enabled

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.69 to 1.0.70.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.69...v1.0.70

)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [impl-serde](https://github.com/paritytech/parity-common) from 0.3.1 to 0.3.2.
- [Release notes](https://github.com/paritytech/parity-common/releases)
- [Commits](https://github.com/paritytech/parity-common/compare/impl-serde-v0.3.1...impl-serde-v0.3.2

)

---
updated-dependencies:
- dependency-name: impl-serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* add offline flag to build mode

* add network enum and interpret --offline flag

* support offline flag for metadata generation

* cargo fmt

* cargo clippy

* fix tests

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.68 to 1.0.69.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.68...v1.0.69

)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [cargo_metadata](https://github.com/oli-obk/cargo_metadata) from 0.14.0 to 0.14.1.
- [Release notes](https://github.com/oli-obk/cargo_metadata/releases)
- [Commits](https://github.com/oli-obk/cargo_metadata/compare/v0.14.0...0.14.1

)

---
updated-dependencies:
- dependency-name: cargo_metadata
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Migrate workshop links

* Fix Discord link

* Fix punctuation

* Update changelog

* Bump version for `cargo-contract`

* Bump version for `contract-metadata`

* Bump version for `contract-metadata`

* Update changelog

* Update changelog

* Update scale-info to 1.0

* Change signature of __ink_generate_metadata to support versioned metadata

* Remove top level metadata version

* Bump template to rc6 ink!

* Fix unit tests

Bumps [structopt](https://github.com/TeXitoi/structopt) from 0.3.23 to 0.3.25.
- [Release notes](https://github.com/TeXitoi/structopt/releases)
- [Changelog](https://github.com/TeXitoi/structopt/blob/master/CHANGELOG.md)
- [Commits](https://github.com/TeXitoi/structopt/compare/v0.3.23...v0.3.25

)

---
updated-dependencies:
- dependency-name: structopt
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [pretty_assertions](https://github.com/colin-kiegel/rust-pretty-assertions) from 0.7.2 to 1.0.0.
- [Release notes](https://github.com/colin-kiegel/rust-pretty-assertions/releases)
- [Changelog](https://github.com/colin-kiegel/rust-pretty-assertions/blob/main/CHANGELOG.md)
- [Commits](https://github.com/colin-kiegel/rust-pretty-assertions/compare/v0.7.2...v1.0.0

)

---
updated-dependencies:
- dependency-name: pretty_assertions
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.67 to 1.0.68.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.67...v1.0.68

)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.43 to 1.0.44.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.43...1.0.44

)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* added information about ci to readme

* added link to local ci docs

* Trim long line

Co-authored-by: Hernando Castano <[email protected]>

* Update readme

* Bump to ink! `3.0.0-rc5`

* Add docker usage examples

* Default to `latest`

Follow-up for https://github.com/paritytech/ci_cd/issues/185.

* Add punctuation