* Do not log PVF prunning every hour

This lowers the level of the PVF pruning.

Closes https://github.com/paritytech/polkadot/issues/4361

* Fix typo: ambigious -> ambiguous

The correct spelling is ambiguous
([dictionary](https://dictionary.cambridge.org/dictionary/english/ambiguous))

* pvf host: store only compiled artifacts on disk

* Correctly handle failed artifacts

* Serialize result of PVF preparation uniquely

* Set the artifact state depending on the result

* Return the result of PVF preparation directly

* Move PrepareError to the error module

* Update doc comments

* Update misleading comment

* Cleanup docs

* Conclude a test job with an error

Co-authored-by: Sergei Shulepov <[email protected]>

* pvf: make execution timeout configurable

* guide: add timeouts to candidate validation params

* add timeouts to candidate validation messages

* fmt

* port backing to use the backing pvf timeout

* port approval-voting to use the execution timeout

* port dispute participation to use the correct timeout

* fmt

* address grumbles & test failure

Co-authored-by: Bastian Köcher <[email protected]>

This is an artifact left by rustfmt which is not dare to remove the
comma being conservative.

* cargo +nightly fmt

* add cargo-fmt check to ci

* update ci

* fmt

* fmt

* skip macro

* ignore bridges

* CI: add spellcheck

* revert me

* CI: explicit command for spellchecker

* spellcheck: edit misspells

* CI: run spellcheck on diff

* spellcheck: edits

* spellcheck: edit misspells

* spellcheck: add rules

* spellcheck: mv configs

* spellcheck: more edits

* spellcheck: chore

* spellcheck: one more thing

* spellcheck: and another one

* spellcheck: seems like it doesn't get to an end

* spellcheck: new words after rebase

* spellcheck: new words appearing out of nowhere

* chore

* review edits

* more review edits

* more edits

* wonky behavior

* wonky behavior 2

* wonky behavior 3

* change git behavior

* spellcheck: another bunch of new edits

* spellcheck: new words are koming out of nowhere

* CI: finding the master

* CI: fetching master implicitly

* CI: undebug

* new errors

* a bunch of new edits

* and some more

* Update node/core/approval-voting/src/approval_db/v1/mod.rs

Co-authored-by: Andronik Ordian <[email protected]>

* Update xcm/xcm-executor/src/assets.rs

Co-authored-by: Andronik Ordian <[email protected]>

* Apply suggestions from code review

Co-authored-by: Andronik Ordian <[email protected]>

* Suggestions from the code review

* CI: scan only changed files

Co-authored-by: Andronik Ordian <[email protected]>

* Companion for PR 8913

polkadot companion: https://github.com/paritytech/substrate/pull/8913

* update Substrate

Co-authored-by: parity-processbot <>

* Implement PVF validation host

* WIP: Diener

* Increase the alloted compilation time

* Add more comments

* Minor clean up

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <[email protected]>

* Fix pruning artifact removal

* Fix formatting and newlines

* Fix the thread pool

* Update node/core/pvf/src/executor_intf.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Remove redundant test declaration

* Don't convert the path into an intermediate string

* Try to workaround the test failure

* Use the puppet_worker trick again

* Fix a blip

* Move `ensure_wasmtime_version` under the tests mod

* Add a macro for puppet_workers

* fix build for not real-overseer

* Rename the puppet worker for adder collator

* play it safe with the name of adder puppet worker

* Typo: triggered

* Add more comments

* Do not kill exec worker on every error

* Plumb Duration for timeouts

* typo: critical

* Add proofs

* Clean unused imports

* Revert "WIP: Diener"

This reverts commit b9f54e513366c7a6dfdd117ac19fbdc46b900b4d.

* Sync version of wasmtime

* Update cargo.lock

* Update Substrate

* Merge fixes still

* Update wasmtime version in test

* bastifmt

Co-authored-by: Bastian Köcher <[email protected]>

* Squash spaces

* Trailing new line for testing.rs

* Remove controversial code

* comment about biasing

* Fix suggestion

* Add comments

* make it more clear why unwrap_err

* tmpfile retry

* proper proofs for claim_idle

* Remove mutex from ValidationHost

* Add some more logging

* Extract exec timeout into a constant

* Add some clarifying logging

* Use blake2_256

* Clean up the merge

Specifically the leftovers after removing real-overseer

* Update parachain/test-parachains/adder/collator/Cargo.toml

Co-authored-by: Andronik Ordian <[email protected]>

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Andronik Ordian <[email protected]>