Invalid diagnostic for 'extra required argument' for explicit numbered precision argument.

[m-ou-se]

error: 2 positional arguments in format string, but no arguments were given
 --> src/main.rs:2:14
  |
2 |     format!("{:.0$}");
  |              ^^---^
  |                |
  |                this precision flag adds an extra required argument at position 0, which is why there are 2 arguments expected
  |

It says there are two arguments expected, but that's not true. This only needs one argument.