1error[E0308]: mismatched types 2 --> tests/ui-msrv/try_transmute_ref-dst-mutable.rs:18:33 3 | 418 | let _: Result<&mut u8, _> = try_transmute_ref!(&0u8); 5 | ^^^^^^^^^^^^^^^^^^^^^^^^ types differ in mutability 6 | 7 = note: expected mutable reference `&mut u8` 8 found reference `&_` 9 = note: this error originates in the macro `try_transmute_ref` (in Nightly builds, run with -Z macro-backtrace for more info) 10 11error[E0308]: mismatched types 12 --> tests/ui-msrv/try_transmute_ref-dst-mutable.rs:18:33 13 | 1418 | let _: Result<&mut u8, _> = try_transmute_ref!(&0u8); 15 | ^^^^^^^^^^^^^^^^^^^^^^^^ 16 | | 17 | types differ in mutability 18 | help: try using a variant of the expected enum: `Err($crate::util::macro_util::try_transmute_ref::<_, _>(e))` 19 | 20 = note: expected enum `Result<&mut u8, _>` 21 found enum `Result<&_, ValidityError<&u8, _>>` 22 = note: this error originates in the macro `try_transmute_ref` (in Nightly builds, run with -Z macro-backtrace for more info) 23