Rustdoc --no-run runs when --edition=2024 is provided
Open
Nobody has claimed this yet.
A-doctests
C-bug
T-rustdoc
- Dominant language
- Rust
- Stars
- 119k
- Forks
- 16.1k
- PR merge metrics
- PR metrics pending
Description
I tried this code:
// test the behavior of the --no-run flag
//@ check-pass
//@ compile-flags:-Z unstable-options --test --no-run --edition 2024 --test-args=--test-threads=1
//@ normalize-stdout: "tests/rustdoc-ui/doctest" -> "$$DIR"
//@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
/// ```
/// let a = true;
/// ```
/// ```should_panic
/// panic!()
/// ```
/// ```ignore (incomplete-code)
/// fn foo() {
/// ```
/// ```no_run
/// loop {
/// println!("Hello, world");
/// }
/// ```
/// fails to compile
/// ```compile_fail
/// let x = 5;
/// x += 2; // shouldn't compile!
/// ```
/// Ok the test does not run
/// ```
/// panic!()
/// ```
/// Ok the test does not run
/// ```should_panic
/// loop {
/// println!("Hello, world");
/// panic!()
/// }
/// ```
pub fn f() {}
Meta
rustdoc --version --verbose:
rustdoc 1.88.0 (6b00bc388 2025-06-23)
binary: rustdoc
commit-hash: 6b00bc3880198600130e1cf62b8f8a93494488cc
commit-date: 2025-06-23
host: x86_64-unknown-linux-gnu
release: 1.88.0
LLVM version: 20.1.5
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the behavior with the supplied rustdoc doctest and the --no-run, --edition 2024, and --test-args flags. Trace rustdoc's doctest execution path to determine why tests run despite --no-run. Done means the reproduction no longer runs doctests while preserving the expected handling of the other doctest attributes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100