| error[E0308]: mismatched types |
| --> $DIR/hr-subtype.rs:45:26 |
| | |
| LL | gimme::<$t1>(None::<$t2>); |
| | ^^^^^^^^^^^ one type is more general than the other |
| ... |
| LL | / check! { bound_a_vs_free_x: (for<'a> fn(&'a u32), |
| LL | | fn(&'x u32)) } |
| | |______________- in this macro invocation |
| | |
| = note: expected enum `std::option::Option<for<'a> fn(&'a u32)>` |
| found enum `std::option::Option<fn(&'x u32)>` |
| = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0308`. |