error[E0599]: no method named `FIRST_ARG_MUST_EITHER_BE_SPAN_OR_IMPLEMENT_TO_TOKENS` found for reference `&Foo` in the current scope
--> $DIR/misuse.rs:8:5
|
8 | abort!(Foo, "BOOM");
| ^^^^^^^^^^^^^^^^^^^^ method not found in `&Foo`
|
= note: the method `FIRST_ARG_MUST_EITHER_BE_SPAN_OR_IMPLEMENT_TO_TOKENS` exists but the following trait bounds were not satisfied:
`&Foo : proc_macro_error::__export::DoubleSpanToTokens`
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following traits define an item `FIRST_ARG_MUST_EITHER_BE_SPAN_OR_IMPLEMENT_TO_TOKENS`, perhaps you need to implement one of them:
candidate #1: `proc_macro_error::__export::DoubleSpanToTokens`
candidate #2: `proc_macro_error::__export::DoubleSpanSingleSpan2`
candidate #3: `proc_macro_error::__export::DoubleSpanSingleSpan`
= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)