error[E0512]: cannot transmute between types of different sizes, or dependently-sized types --> tests/ui-nightly/transmute-mut-dst-generic.rs:17:5 | 17 | transmute_mut!(u) | ^^^^^^^^^^^^^^^^^ | = note: source type: `u8` (8 bits) = note: target type: `T` (this type does not have a fixed size) = note: this error originates in the macro `$crate::assert_size_eq` which comes from the expansion of the macro `transmute_mut` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0512]: cannot transmute between types of different sizes, or dependently-sized types --> tests/ui-nightly/transmute-mut-dst-generic.rs:17:5 | 17 | transmute_mut!(u) | ^^^^^^^^^^^^^^^^^ | = note: source type: `AlignOf` (8 bits) = note: target type: `MaxAlignsOf` (size can vary because of T) = note: this error originates in the macro `$crate::assert_align_gt_eq` which comes from the expansion of the macro `transmute_mut` (in Nightly builds, run with -Z macro-backtrace for more info)