This will allow us to send it across threads and measure things like
LLVM time.

Done previously as a part of
https://github.com/rust-lang/rust/pull/58748

Unfortunately this'll dupe parking_lot until the data_structures crate
is published and be updated in rls in conjunction with crossbeam-channel

Changes:
````
wildcard_match_arm: Update lint count.
wildcard_match_arm: add nesting issue to known.
wildcard_match_arm: lint only enum matches.
wildcard_match_arm: update ui test stderr
wildcard_match_arm: format test.
wilcard_match_arm: run rustfmt.
wildcard_match_arm: add lint properly.
wildcard_match_arm: rename function.
wildcard_match_arm: add simple ui test.
wildcard_match_arm: expand lint scope.
Change match_wild lint name to WILDCARD_MATCH_ARM.
Add match_wild lint (#3649).
fetch_prs_between: add .sh file ending
cargo fmt
Update various docs
Use built-in entry_fn detection over self-built
cargo fmt
Reorganize conditionals: Run faster checks first
Maybe fix ICE?
Add initial version of const_fn lint
Fix `unit_arg` false positive
Rustfmt
Check hypothetically failing conversion
Remove tests for deprecated items
Update more changed iterator paths
Atomics constants are now handled by the deprecation lint
Update changed iterator paths
Update const slice processing
update test stderr
run cargo fmt
rustup https://github.com/rust-lang/rust/pull/57907/
Fix documentation for `slow_vector_initialization`
rustup https://github.com/rust-lang/rust/pull/57726
Remove unsafe_vector_initialization from added lints
Prevent incorrect cast_lossless suggestion in const_fn
Incorporate review suggestions
Fix dogfood tests on Appveyor
test(versioncheck): Use .no_deps()
test(versioncheck): Fix version equality check
chore(cargo/dependencies/cargo-metadata): Upgrade to 0.7.1
dependencies: update itertools from 0.7 to 0.8
Add script to fetch GitHub PRs between two commits
gitattributes: Treat .fixed files as rust files
Update changelog with all changes since 0.0.212
Fix `expect_fun_call` lint suggestions
````

Implemented in rust-lang/cargo#6600

Remove usage of an old and removed wasm intrinsic

Changes:
````
Remove state.analysis due to Rust PR #57476
Improve missing nightly readme info
Bump languageserver-types to v0.54.0 and renam crate name to lsp-types
Delete bors.toml
Fix tests
Fix https://github.com/rust-lang/rls/issues/1231
Implement asynchronous message reading
Use typed requests
Implement Tokio-based test LSP client
Update README.md to account for Travis url change
Simplify wait_for_all recv calls
Update dependencies
Revert NLL bug workaround
Remove old test_data entry in .gitignore
Reorganize some tests
Don't test RLS binary target directly
Move tooltip tests to integration tests
Simplify tooltip test harness
Only use FIXTURES_DIR to determine fixtures
Remove src/test/mod.rs
Centralise FIXTURES_DIR across unit and integration tests
Move lens test to tests/
Suppress unused warnings in tests/*
Beautify main.rs and lib.rs
WIP: Move tests
Move src/test/harness to tests/support/harness
Split RLS into bin/lib
Update Clippy
Change all mentions of `rls-preview` to `rls`
Make config mutex borrow scope explicit
Fallback to racer definition
````

Fixes rls build.