error: invalid format string: expected `}` but string was terminated
  --> $DIR/format-string-error.rs:4:16
   |
LL |     println!("{");
   |               -^ expected `}` in format string
   |               |
   |               because of this opening brace
   |
   = note: if you intended to print `{`, you can escape it using `{{`

error: invalid format string: unmatched `}` found
  --> $DIR/format-string-error.rs:7:15
   |
LL |     println!("}");
   |               ^ unmatched `}` in format string
   |
   = note: if you intended to print `}`, you can escape it using `}}`

error: invalid format string: invalid argument name `_`
  --> $DIR/format-string-error.rs:9:23
   |
LL |     let _ = format!("{_}", _ = 6usize);
   |                       ^ invalid argument name in format string
   |
   = note: argument name cannot be a single underscore

error: invalid format string: invalid argument name `_`
  --> $DIR/format-string-error.rs:11:25
   |
LL |     let _ = format!("{a:_}", a = "", _ = 0);
   |                         ^ invalid argument name in format string
   |
   = note: argument name cannot be a single underscore

error: invalid format string: invalid argument name `_`
  --> $DIR/format-string-error.rs:13:26
   |
LL |     let _ = format!("{a:._$}", a = "", _ = 0);
   |                          ^ invalid argument name in format string
   |
   = note: argument name cannot be a single underscore

error: invalid format string: expected `}` but string was terminated
  --> $DIR/format-string-error.rs:15:23
   |
LL |     let _ = format!("{");
   |                      -^ expected `}` in format string
   |                      |
   |                      because of this opening brace
   |
   = note: if you intended to print `{`, you can escape it using `{{`

error: invalid format string: unmatched `}` found
  --> $DIR/format-string-error.rs:17:22
   |
LL |     let _ = format!("}");
   |                      ^ unmatched `}` in format string
   |
   = note: if you intended to print `}`, you can escape it using `}}`

error: invalid format string: expected `}`, found `\`
  --> $DIR/format-string-error.rs:19:23
   |
LL |     let _ = format!("{\}");
   |                      -^ expected `}` in format string
   |                      |
   |                      because of this opening brace
   |
   = note: if you intended to print `{`, you can escape it using `{{`

error: invalid format string: expected `}` but string was terminated
  --> $DIR/format-string-error.rs:21:35
   |
LL |     let _ = format!("\n\n\n{\n\n\n");
   |                            -      ^ expected `}` in format string
   |                            |
   |                            because of this opening brace
   |
   = note: if you intended to print `{`, you can escape it using `{{`

error: invalid format string: expected `}` but string was terminated
  --> $DIR/format-string-error.rs:27:3
   |
LL |     {"###);
   |     -^ expected `}` in format string
   |     |
   |     because of this opening brace
   |
   = note: if you intended to print `{`, you can escape it using `{{`

error: invalid format string: expected `}` but string was terminated
  --> $DIR/format-string-error.rs:35:1
   |
LL |     {
   |     - because of this opening brace
LL |
LL | "###);
   | ^ expected `}` in format string
   |
   = note: if you intended to print `{`, you can escape it using `{{`

error: invalid format string: unmatched `}` found
  --> $DIR/format-string-error.rs:41:2
   |
LL |     }
   |     ^ unmatched `}` in format string
   |
   = note: if you intended to print `}`, you can escape it using `}}`

error: invalid format string: unmatched `}` found
  --> $DIR/format-string-error.rs:49:9
   |
LL |         }
   |         ^ unmatched `}` in format string
   |
   = note: if you intended to print `}`, you can escape it using `}}`

error: 3 positional arguments in format string, but there are 2 arguments
  --> $DIR/format-string-error.rs:53:15
   |
LL |     println!("{} {} {}", 1, 2);
   |               ^^ ^^ ^^   -  -

error: aborting due to 14 previous errors