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()` | LL ~ r##"foo {} LL ~ " bar"##.to_string(); | error: useless use of `format!` --> $DIR/format.rs:21:13 | LL | let _ = format!(""); | ^^^^^^^^^^^ help: consider using `String::new()`: `String::new()` error: useless use of `format!` --> $DIR/format.rs:23:5 | LL | format!("{}", "foo"); | ^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"foo".to_string()` error: useless use of `format!` --> $DIR/format.rs:27:5 | 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:28:5 | 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:33:5 | LL | format!("{}", arg); | ^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `arg.to_string()` error: useless use of `format!` --> $DIR/format.rs:37:5 | 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:38:5 | 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:65:5 | LL | format!("{}", 42.to_string()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `42.to_string()` error: useless use of `format!` --> $DIR/format.rs:67:5 | LL | format!("{}", x.display().to_string()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `x.display().to_string()` error: useless use of `format!` --> $DIR/format.rs:71:18 | LL | let _ = Some(format!("{}", a + "bar")); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `a + "bar"` error: useless use of `format!` --> $DIR/format.rs:75:22 | LL | let _s: String = format!("{}", &*v.join("/n")); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `(&*v.join("/n")).to_string()` error: aborting due to 15 previous errors