1 error: incorrect function inside `extern` block
2 --> $DIR/issue-91370-foreign-fn-block-impl.rs:5:8
5 | ------ `extern` blocks define existing foreign functions and functions inside of them cannot have a body
10 | | cannot have a body
13 LL | | impl Copy for u8 {}
15 | |_____- help: remove the invalid body: `;`
17 = help: you might have meant to write a function accessible through FFI, which can be done by writing `extern fn` outside of the `extern` block
18 = note: for more information, visit https://doc.rust-lang.org/std/keyword.extern.html
20 error: aborting due to previous error