error: cannot determine resolution for the attribute macro `test`
  --> $DIR/issue-28134.rs:4:4
   |
LL | #![test]
   |    ^^^^
   |
   = note: import resolution is stuck, try simplifying macro imports

error: `test` attribute cannot be used at crate level
  --> $DIR/issue-28134.rs:4:1
   |
LL | #![test]
   | ^^^^^^^^
   |
help: perhaps you meant to use an outer attribute
   |
LL - #![test]
LL + #[test]
   |

error: aborting due to 2 previous errors