WIP: Fix for m68k #1480

Annotations

13 warnings

unused imports: `ParamEnv`, `Ty`

`rustc_codegen_gcc` (lib) generated 1 warning (run `cargo fix --lib -p rustc_codegen_gcc` to apply 1 suggestion)

use of deprecated method `std::error::Error::description`: use the Display impl or to_string()

field `printer` is never read

call to `.borrow()` on a reference in this situation does nothing

use of deprecated method `aho_corasick::AhoCorasickBuilder::byte_classes`: not carrying its weight, will be always enabled, see: https://github.com/BurntSushi/aho-corasick/issues/57

`regex-syntax` (lib) generated 5 warnings (run `cargo fix --lib -p regex-syntax` to apply 1 suggestion)

`regex` (lib) generated 1 warning

unused imports: `ParamEnv`, `Ty`

`rustc_codegen_gcc` (lib) generated 1 warning (run `cargo fix --lib -p rustc_codegen_gcc` to apply 1 suggestion)