#3348
When format_code_in_doc_comments is enabled, rustfmt will delete trailing blank lines in non-rust code blocks (e.g. blocks prefaced with ```text), and add a trailing whitespace to leading blank lines.
/// A doc comment.
///
/// ```text
///
/// A text block
///
/// ```
///
/// ^ A blank line
struct S;
Formatting this, with latest nightly rustfmt as of today (rustfmt 1.8.0-nightly (9982d6462b 2025-07-20)), and the format_code_in_doc_comments option, will delete the trailing blank line in the text block, and add a trailing whitespace to the leading blank line.
#3348
When
format_code_in_doc_commentsis enabled, rustfmt will delete trailing blank lines in non-rust code blocks (e.g. blocks prefaced with```text), and add a trailing whitespace to leading blank lines.Formatting this, with latest nightly rustfmt as of today (
rustfmt 1.8.0-nightly (9982d6462b 2025-07-20)), and theformat_code_in_doc_commentsoption, will delete the trailing blank line in thetextblock, and add a trailing whitespace to the leading blank line.