1 error[E0277]: the trait bound `&mut T: Clone` is not satisfied
2 --> $DIR/issue-79458.rs:6:5
5 | ----- in this derive macro expansion
6 LL | struct Foo<'a, T> {
8 | ^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `&mut T`
10 = help: the following implementations were found:
12 = note: `Clone` is implemented for `&T`, but not for `&mut T`
13 note: required by `clone`
14 --> $SRC_DIR/core/src/clone.rs:LL:COL
16 LL | fn clone(&self) -> Self;
17 | ^^^^^^^^^^^^^^^^^^^^^^^^
18 = note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
20 error: aborting due to previous error
22 For more information about this error, try `rustc --explain E0277`.