1 error: format argument must be a string literal
2 --> $DIR/derive-in-eager-expansion-hang.rs:4:5
5 LL | | #[derive(Clone)]
12 LL | format_args!(hang!());
13 | ------- in this macro invocation
15 = note: this error originates in the macro `hang` (in Nightly builds, run with -Z macro-backtrace for more info)
16 help: you might be missing a string literal to format with
18 LL | format_args!("{}", hang!());
21 error: aborting due to previous error