1error: useless use of `format!` 2 --> $DIR/format.rs:13:5 3 | 4LL | format!("foo"); 5 | ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"foo".to_string()` 6 | 7 = note: `-D clippy::useless-format` implied by `-D warnings` 8 9error: useless use of `format!` 10 --> $DIR/format.rs:14:5 11 | 12LL | format!("{{}}"); 13 | ^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"{}".to_string()` 14 15error: useless use of `format!` 16 --> $DIR/format.rs:15:5 17 | 18LL | format!("{{}} abc {{}}"); 19 | ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"{} abc {}".to_string()` 20 21error: useless use of `format!` 22 --> $DIR/format.rs:16:5 23 | 24LL | / format!( 25LL | | r##"foo {{}} 26LL | | " bar"## 27LL | | ); 28 | |_____^ 29 | 30help: consider using `.to_string()` 31 | 32LL ~ r##"foo {} 33LL ~ " bar"##.to_string(); 34 | 35 36error: useless use of `format!` 37 --> $DIR/format.rs:21:13 38 | 39LL | let _ = format!(""); 40 | ^^^^^^^^^^^ help: consider using `String::new()`: `String::new()` 41 42error: useless use of `format!` 43 --> $DIR/format.rs:23:5 44 | 45LL | format!("{}", "foo"); 46 | ^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"foo".to_string()` 47 48error: useless use of `format!` 49 --> $DIR/format.rs:27:5 50 | 51LL | format!("{:+}", "foo"); // Warn when the format makes no difference. 52 | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"foo".to_string()` 53 54error: useless use of `format!` 55 --> $DIR/format.rs:28:5 56 | 57LL | format!("{:<}", "foo"); // Warn when the format makes no difference. 58 | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"foo".to_string()` 59 60error: useless use of `format!` 61 --> $DIR/format.rs:33:5 62 | 63LL | format!("{}", arg); 64 | ^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `arg.to_string()` 65 66error: useless use of `format!` 67 --> $DIR/format.rs:37:5 68 | 69LL | format!("{:+}", arg); // Warn when the format makes no difference. 70 | ^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `arg.to_string()` 71 72error: useless use of `format!` 73 --> $DIR/format.rs:38:5 74 | 75LL | format!("{:<}", arg); // Warn when the format makes no difference. 76 | ^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `arg.to_string()` 77 78error: useless use of `format!` 79 --> $DIR/format.rs:65:5 80 | 81LL | format!("{}", 42.to_string()); 82 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `42.to_string()` 83 84error: useless use of `format!` 85 --> $DIR/format.rs:67:5 86 | 87LL | format!("{}", x.display().to_string()); 88 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `x.display().to_string()` 89 90error: useless use of `format!` 91 --> $DIR/format.rs:71:18 92 | 93LL | let _ = Some(format!("{}", a + "bar")); 94 | ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `a + "bar"` 95 96error: useless use of `format!` 97 --> $DIR/format.rs:75:22 98 | 99LL | let _s: String = format!("{}", &*v.join("/n")); 100 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `(&*v.join("/n")).to_string()` 101 102error: useless use of `format!` 103 --> $DIR/format.rs:81:13 104 | 105LL | let _ = format!("{x}"); 106 | ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `x.to_string()` 107 108error: useless use of `format!` 109 --> $DIR/format.rs:83:13 110 | 111LL | let _ = format!("{y}", y = x); 112 | ^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `x.to_string()` 113 114error: aborting due to 17 previous errors 115 116