warning: shared reference of mutable static is discouraged
--> stm32l0xx-hal/src/signature.rs:45:40
45
core::str::from_utf8_unchecked(&DEVICE_ID_STR)
^^^^^^^^^^^^^^ shared reference of mutable static
= note: for more information, see issue #114447 https://github.com/rust-lang/rust/issues/114447
= note: reference of mutable static is a hard error from 2024 edition
= note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior
= note: #[warn(static_mut_ref)] on by default
help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use addr_of! instead to create a raw pointer
This fixes this warning:
= note: for more information, see issue #114447 https://github.com/rust-lang/rust/issues/114447 = note: reference of mutable static is a hard error from 2024 edition = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior = note:
#[warn(static_mut_ref)]on by default help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; useaddr_of!instead to create a raw pointer