1 error[E0545]: `issue` must be a non-zero numeric string or "none"
2 --> $DIR/unstable-attribute-allow-issue-0.rs:6:47
4 LL | #[unstable(feature = "unstable_test_feature", issue = "0")]
7 | `issue` must not be "0", use "none" instead
9 error[E0545]: `issue` must be a non-zero numeric string or "none"
10 --> $DIR/unstable-attribute-allow-issue-0.rs:12:47
12 LL | #[unstable(feature = "unstable_test_feature", issue = "something")]
15 | invalid digit found in string
17 error: aborting due to 2 previous errors
19 For more information about this error, try `rustc --explain E0545`.