fix(frontmatter): Improve error quality #15972
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For comparison, rustc's message is: > error: unclosed frontmatter > --> $DIR/frontmatter-whitespace-2.rs:1:1 > | > LL | / ---cargo > ... | > LL | | > | |_^ > | > note: frontmatter opening here was not closed > --> $DIR/frontmatter-whitespace-2.rs:1:1 > | > LL | ---cargo > | ^^^
For comparison, the rustc error is: > error: extra characters after frontmatter close are not allowed > --> $DIR/extra-after-end.rs:2:1 > | > LL | ---cargo > | ^^^^^^^^
For comparison, rustc's message is: > error: frontmatter close does not match the opening > --> $DIR/mismatch-1.rs:1:1 > | > LL | ---cargo > | ^-- > | | > | _the opening here has 3 dashes... > | | > LL | | > LL | | ---- > | |_---^ > | | > | ...while the close has 4 dashes
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Update cargo submodule 19 commits in 24bb93c388fb8c211a37986539f24a819dc669d3..966f94733bbc94ca51ff9f1e4c49ad250ebbdc50 2025-09-10 23:16:07 +0000 to 2025-09-16 17:24:45 +0000 - fix(frontmatter): Improve error quality (rust-lang/cargo#15972) - fix: wrong variable name in documentation (rust-lang/cargo#15968) - Add "Optimizing Build Performance" section to the Cargo book (rust-lang/cargo#15924) - Remove extra apostrophe in environment-variables.md (rust-lang/cargo#15963) - Clarify warning for using `features` or `default-features` in `patch` (rust-lang/cargo#15953) - fix(frontmatter): Try alternative len code fences (rust-lang/cargo#15952) - feat(cli): Allow completions for third-party subcommand names (rust-lang/cargo#15961) - docs(index): Clarify what we mean by omitting features (rust-lang/cargo#15957) - fix(future): Report all content as a single Report (rust-lang/cargo#15943) - fix(complete): Show local crates/features over other members (rust-lang/cargo#15956) - docs(resolver): Describe the role of the lockfile (rust-lang/cargo#15958) - chore: Skip check-version-bump ci job in forks (rust-lang/cargo#15959) - Eliminate the last three "did you mean" warning phrasings (rust-lang/cargo#15356) - fix(info): Suggest a more universal `cargo tree` command (rust-lang/cargo#15954) - feat(cli): Use ellipses when truncating progress (rust-lang/cargo#15955) - feat(completer): Added completion for `--features` flag (rust-lang/cargo#15309) - fix(publish): Switch the 'ctrl-c on wait' line to a help message (rust-lang/cargo#15942) - docs: move docs building process to contributor guide (rust-lang/cargo#15854) - fix(manifest): Show error source to users (rust-lang/cargo#15939) r? ghost
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What does this PR try to resolve?
The wording for our errors was indirect and things weren't as clear without more context.
How to test and review this PR?
Notes
Example of rustc's versions of these errors:
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