Doc test bug: recognize `/// - a` as doctest

[gwy15]

I tried this code:

/// comment
///
/// -               panic!()
pub fn f() {}

I expected to see this happen when running cargo test: nothing

Instead, this happened: thread 'main' panicked at 'explicit panic', src/lib.rs:3:1

Meta

rustc --version --verbose:

rustc 1.65.0 (897e37553 2022-11-02)
binary: rustc
commit-hash: 897e37553bba8b42751c67658967889d11ecd120
commit-date: 2022-11-02
host: aarch64-apple-darwin
release: 1.65.0
LLVM version: 15.0.0

[albertlarsan68]

It does also reproduce with

rustc 1.66.0-beta.2 (0040709e3 2022-11-20)
binary: rustc
commit-hash: 0040709e39bfa159d099ee14628ad4ac72f91406
commit-date: 2022-11-20
host: x86_64-pc-windows-msvc
release: 1.66.0-beta.2
LLVM version: 15.0.2

and

rustc 1.67.0-nightly (70f8737b2 2022-11-23)
binary: rustc
commit-hash: 70f8737b2f5d3bf7d6b784fad00b663b7ff9feda
commit-date: 2022-11-23
host: x86_64-pc-windows-msvc
release: 1.67.0-nightly
LLVM version: 15.0.4

[ehuss]

Thanks for the report! I understand this is a bit confusing, but it is mostly working as intended. The commonmark spec specifies that indented text is a code block. Rustdoc by default treats all code blocks as "rust" code unless otherwise specified.

I'm going to close since this has been reported before. Closing as a duplicate of #64162, #59867, #88590, #100225.