1 error: useless use of `format!`
7 = note: `-D useless-format` implied by `-D warnings`
9 error: useless use of `format!`
10 --> $DIR/format.rs:8:5
12 8 | format!("{}", "foo");
13 | ^^^^^^^^^^^^^^^^^^^^^
15 error: useless use of `format!`
16 --> $DIR/format.rs:15:5
18 15 | format!("{}", arg);
21 error: aborting due to 3 previous errors