switch log crate to tracing

[dzvon]

Fixes #9274

1. Replace log crate with tracing of every crate that depend on log.
2. Change all log record macro with tracing.
3. Add LoggerFormatter make output format be the same as original.

[lnicola]

It looks like some test code is still using env-logger.

[dzvon]

---- tidy::check_licenses stdout ----
thread 'tidy::check_licenses' panicked at 'different set of licenses!
New Licenses:
  Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT

Missing Licenses:
', crates/rust-analyzer/tests/slow-tests/tidy.rs:264:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    tidy::check_licenses

test result: FAILED. 18 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 8.48s

I believe this problem is caused by chrono crate, its license is MIT OR Apache-2.0. tracing-appender introduce it, I'd better remove tracing-appender dependence.

[lnicola]

The license test is in crates/rust-analyzer/tests/slow-tests/tidy.rs.

[lnicola]

You don't have to remove that crate, you can update the allowed license list.

[dzvon]

Only one last issue left in CI checks.

error[E0432]: unresolved import `std::sync::atomic::AtomicU64`
  --> /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/tracing-appender-0.1.2/src/non_blocking.rs:54:5

Maybe we should submit a PR to tracing-appender or just remove it? What do you think? @lnicola

[dzvon]

This tokio-rs/tracing#1508 PR will fix the compilation error, but it's a breaking change, and will take a little time to be released.

[matklad]

Is there a lighter weight alternative to tracing appender? I don't think it makes sense to rust-analyzer to depend on chrono, it shouldn't care which year it is outside.

[dzvon]

@matklad I totally agree with you, I'll find a way to replace tracing appender.

[matklad]

https://docs.rs/tracing-subscriber/0.2.19/tracing_subscriber/fmt/index.html might be a good candidate, but cc tokio-rs/tracing#1436

[dzvon]

This time I think it's okay.

[lnicola]

Thanks!

bors r+

changelog internal (first contribution) switch from the log to tracing

[bors]

Build succeeded:

• Rust (macos-latest)
• Rust (ubuntu-latest)
• Rust (windows-latest)
• TypeScript (ubuntu-latest)
• TypeScript (windows-latest)