I am running rustc bootstrap build tests via cmd:

python3 src/bootstrap/bootstrap.py test --exclude "some excluded test cases list" --no-fail-fast --bless --target x86_64-poky-linux-gnu

which give failures as follows:

Running unittests src/lib.rs (/home/build-st/tmp/work/core2-64-poky-linux/rust/1.77.0/rustc-1.77.0-src/build

/bootstrap/debug/deps/bootstrap-fca753a60bf3f353)
uploaded "/home/build-st/tmp/work/core2-64-poky-linux/rust/1.77.0/rustc-1.77.0-src/build/bootstrap/debug/deps/bootstrap-fca753a60bf3f353", waiting for result
thread 'main' panicked at src/tools/remote-test-client/src/main.rs:310:9:
client.read_exact(&mut header) failed with failed to fill whole buffer
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace
error: test failed, to rerun pass --lib
error: test failed, to rerun pass --bin bootstrap
error: test failed, to rerun pass --bin rustc
error: test failed, to rerun pass --bin rustdoc
error: test failed, to rerun pass --bin sccache-plus-cl

error: 5 targets failed:
--lib
--bin bootstrap
--bin rustc
--bin rustdoc
--bin sccache-plus-cl

Since these unittests give build failures, how can I skip/disable(all unittest cases) them from running using the above cmd (any flag or option to be passed with cmd) so that the build is completed successfully.

Until rust 1.75 unittests were not executed since we were using --doc option in the cmd. But, from rust 1.76 we dropped that option as it didn’t run any tests (unittest and integration tests) on cross-targets.

After this, many of the unittest cases failed as above.

What can be the reason for this?
As a work around, how can I disable/skip execution of all unittest cases? Is there any cmdline flag/option to do so?
I know about the #[ignore] tag but it’s not feasible to do as there are many files.

Thanks.