1 error: requires at least a format string argument
2 --> $DIR/ifmt-bad-format-args.rs:2:5
4 LL | format_args!(); //~ ERROR: requires at least a format string argument
7 error: format argument must be a string literal
8 --> $DIR/ifmt-bad-format-args.rs:3:18
10 LL | format_args!(|| {}); //~ ERROR: must be a string literal
12 help: you might be missing a string literal to format with
14 LL | format_args!("{}", || {}); //~ ERROR: must be a string literal
17 error: aborting due to 2 previous errors