error[E0658]: C-cmse-nonsecure-call ABI is experimental and subject to change --> $DIR/gate_test.rs:4:46 | LL | core::mem::transmute:: i32>( | ^^^^^^^^^^^^^^^^^^^^^^^ | = note: see issue #81391 for more information = help: add `#![feature(abi_c_cmse_nonsecure_call)]` to the crate attributes to enable error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0658`.