Avoid ref when using format! in compiler #17641
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Clean up a few minor refs in `format!` macro, as it has a performance cost. Apparently the compiler is unable to inline `format!("{}", &variable)`, and does a run-time double-reference instead (format macro already does one level referencing). Inlining format args prevents accidental `&` misuse.
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Clean up a few minor refs in
format!macro, as it has a performance cost. Apparently the compiler is unable to inlineformat!("{}", &variable), and does a run-time double-reference instead (format macro already does one level referencing). Inlining format args prevents accidental&misuse.See rust-lang/rust-clippy#10851