error: Tool rls has regressed from test-pass to test-fail during beta week.

https://github.com/rust-lang/rust/pull/72586 failed azune with the following error.

How can I test this locally?

Running./x.py test check-tools results in

error: Tool `book` was not recorded in tool state.
error: Tool `nomicon` was not recorded in tool state.
error: Tool `reference` was not recorded in tool state.
error: Tool `rust-by-example` was not recorded in tool state.
error: Tool `edition-guide` was not recorded in tool state.
error: Tool `rls` was not recorded in tool state.
error: Tool `rustfmt` was not recorded in tool state.
error: Tool `miri` was not recorded in tool state.
error: Tool `embedded-book` was not recorded in tool state.
failed to run: /home/programming/rust6/build/bootstrap/debug/bootstrap test check-tools

Does ./x.py test src/tools/rls work?.

It locally compiles (and tests) without any errors :oh_no:

Any tips on how to proceed here?

2020-06-02T14:27:11.9794259Z [2020-06-02T14:27:11Z ERROR rls::server] Can't read message
2020-06-02T14:27:11.9796261Z thread 'main' panicked at 'called Result::unwrap() on an Err value: Os { code: 32, kind: BrokenPipe, message: "Broken pipe" }', src/tools/rls/rls/src/server/io.rs:190:9
2020-06-02T14:27:11.9797068Z note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

Is this a spurious error? And if so, can someone retry https://github.com/rust-lang/rust/pull/72586

Not sure how that could possibly break RLS, retrying

Failed again, this time the log fairly short and seems completely unrelated