src/test/ui/rfc-1937-termination-trait/termination-trait-test-wrong-type.stderr

   1 error[E0277]: `main` has invalid return type `f32`
   2   --> $DIR/termination-trait-test-wrong-type.rs:6:1
   3    |
   4 LL |   #[test]
   5    |   ------- in this procedural macro expansion
   6 LL | / fn can_parse_zero_as_f32() -> Result<f32, ParseFloatError> {
   7 LL | |     "0".parse()
   8 LL | | }
   9    | |_^ `main` can only return types that implement `Termination`
  10    |
  11    = help: the trait `Termination` is not implemented for `f32`
  12    = note: required because of the requirements on the impl of `Termination` for `Result<f32, ParseFloatError>`
  13 note: required by a bound in `assert_test_result`
  14   --> $SRC_DIR/test/src/lib.rs:LL:COL
  15    |
  16 LL | pub fn assert_test_result<T: Termination>(result: T) {
  17    |                              ^^^^^^^^^^^ required by this bound in `assert_test_result`
  18    = note: this error originates in the attribute macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
  19
  20 error: aborting due to previous error
  21
  22 For more information about this error, try `rustc --explain E0277`.