Beta targetted revert 81473 warn write only fields

[pnkfelix]

beta backport of PR #86212

[rust-highfive]

r? @matthewjasper

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[rust-highfive]

⚠️Warning⚠️

• Pull requests are usually filed against the master branch for this repo, but this one is against beta. Please double check that you specified the right target!

[Mark-Simulacrum]

@bors r+ rollup=never p=1

[bors]

📌 Commit e541354 has been approved by Mark-Simulacrum

[bors]

⌛ Testing commit e541354 with merge 20e7d35e878e98a46ff0213eec6c785345068700...

[rust-log-analyzer]

The job aarch64-gnu failed! Check out the build log: (web)(plain)

Click to see the possible cause of the failure (guessed by this bot)

failures:
---- thread::local::tests::join_orders_after_tls_destructors stdout ----
thread 'thread::local::tests::join_orders_after_tls_destructors' panicked at 'internal error: entered unreachable code: sync state: Err(2)', library/std/src/thread/local/tests.rs:312:22
failures:
thread::local::tests::join_orders_after_tls_destructors
test result: FAILED. 859 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 10.35s
error: test failed, to rerun pass '-p std --lib'
command did not execute successfully: "/checkout/obj/build/aarch64-unknown-linux-gnu/stage0/bin/cargo" "test" "--target" "aarch64-unknown-linux-gnu" "-Zbinary-dep-depinfo" "-j" "14" "--release" "--locked" "--color" "always" "--features" "panic-unwind backtrace profiler compiler-builtins-c" "--manifest-path" "/checkout/library/test/Cargo.toml" "-p" "std" "--"
failed to run: /checkout/obj/build/bootstrap/debug/bootstrap --stage 2 test
Build completed unsuccessfully in 0:26:39

[bors]

💔 Test failed - checks-actions

[Mark-Simulacrum]

@bors retry

thread 'thread::local::tests::join_orders_after_tls_destructors' panicked at 'internal error: entered unreachable code: sync state: Err(2)', library/std/src/thread/local/tests.rs:312:22

[bors]

⌛ Testing commit e541354 with merge b959328...

[bors]

☀️ Test successful - checks-actions
Approved by: Mark-Simulacrum
Pushing b959328 to beta...