src/tools/clippy/tests/ui/format.stderr

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