1error[E0512]: cannot transmute between types of different sizes, or dependently-sized types 2 --> tests/ui-nightly/transmute-size-decrease.rs:20:27 3 | 420 | const DECREASE_SIZE: u8 = transmute!(AU16(0)); 5 | ^^^^^^^^^^^^^^^^^^^ 6 | 7 = note: source type: `AU16` (16 bits) 8 = note: target type: `u8` (8 bits) 9 = note: this error originates in the macro `transmute` (in Nightly builds, run with -Z macro-backtrace for more info) 10