Rustdoc does not obey --error-format for doctests error messages #81662
Description
I tried this code:
/// ```rust /// foo(); /// ``` fn foo() { println!("Hello, world!"); }I expected to see this happen: Running cargo test --doc --message-format=short uses short messages for all errors
Instead, this happened: The build failure for the doc test emits full error messages:
> cargo test --doc --message-format=short Compiling foo v0.1.0 (/tmp/tmp.RZdiSTk0tC/foo) src/lib.rs:4:4: warning: function is never used: `foo` warning: 1 warning emitted Finished test [unoptimized + debuginfo] target(s) in 0.11s Doc-tests foo running 1 test test src/lib.rs - foo (line 1) ... FAILED failures: ---- src/lib.rs - foo (line 1) stdout ---- error[E0423]: expected function, found crate `foo` --> src/lib.rs:2:1 | 4 | foo(); | ^^^ not a function error: aborting due to previous error For more information about this error, try `rustc --explain E0423`. Couldn't compile the test. failures: src/lib.rs - foo (line 1) test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s error: test failed, to rerun pass '--doc'Meta
rustc --version --verbose:
rustc 1.50.0-nightly (0f6f2d681 2020-12-06) binary: rustc commit-hash: 0f6f2d681b39c5f95459cd09cb936b6ceb27cd82 commit-date: 2020-12-06 host: x86_64-unknown-linux-gnu release: 1.50.0-nightly