error: useless use of `format!` --> $DIR/format.rs:13:5 | LL | format!("foo"); | ^^^^^^^^^^^^^^^ help: consider using .to_string(): `"foo".to_string();` | = note: `-D clippy::useless-format` implied by `-D warnings` error: useless use of `format!` --> $DIR/format.rs:14:5 | LL | format!("{{}}"); | ^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"{}".to_string();` error: useless use of `format!` --> $DIR/format.rs:15:5 | LL | format!("{{}} abc {{}}"); | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"{} abc {}".to_string();` error: useless use of `format!` --> $DIR/format.rs:16:5 | LL | / format!( LL | | r##"foo {{}} LL | | " bar"## LL | | ); | |______^ help: consider using .to_string(): `"foo {}/n/" bar".to_string();` error: useless use of `format!` --> $DIR/format.rs:21:5 | LL | format!("{}", "foo"); | ^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"foo".to_string();` error: useless use of `format!` --> $DIR/format.rs:25:5 | LL | format!("{:+}", "foo"); // Warn when the format makes no difference. | ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"foo".to_string();` error: useless use of `format!` --> $DIR/format.rs:26:5 | LL | format!("{:<}", "foo"); // Warn when the format makes no difference. | ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"foo".to_string();` error: useless use of `format!` --> $DIR/format.rs:31:5 | LL | format!("{}", arg); | ^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `arg.to_string();` error: useless use of `format!` --> $DIR/format.rs:35:5 | LL | format!("{:+}", arg); // Warn when the format makes no difference. | ^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `arg.to_string();` error: useless use of `format!` --> $DIR/format.rs:36:5 | LL | format!("{:<}", arg); // Warn when the format makes no difference. | ^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `arg.to_string();` error: useless use of `format!` --> $DIR/format.rs:63:5 | LL | format!("{}", 42.to_string()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `42.to_string();` error: useless use of `format!` --> $DIR/format.rs:65:5 | LL | format!("{}", x.display().to_string()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `x.display().to_string();` error: useless use of `format!` --> $DIR/format.rs:69:18 | LL | let _ = Some(format!("{}", a + "bar")); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `a + "bar"` error: aborting due to 13 previous errors