#![test] on a crate has an... interesting effect

[jonas-schievink]

<anon>:1:1: 1:4 error: unresolved import `std::prelude::v1::*`. Maybe a missing `extern crate std`?
<anon>:1 #![test]
         ^~~
error: aborting due to previous error

[Mark-Simulacrum]

This appears to now be fixed.

rustc 1.14.0-nightly (cae6ab1c4 2016-11-05)
error: only functions may be used as tests
 --> <anon>:1:1
  |
1 | #![test]
  | ^

error: aborting due to previous error

[jonas-schievink]

Neat! Just needs a test if there isn't one already.

[Mark-Simulacrum]

There's https://github.com/rust-lang/rust/blob/master/src/test/compile-fail/issue-14772.rs, but I'm not sure if that qualifies as testing this in particular. If not, I can add one.

[Mark-Simulacrum]

Marking as E-needstest. I don't think the test I linked previously really fits this case.