rust/tests/ui/borrowck/issue_113842.stderr at fc0abdeb5529f3bc942d090f50895cae88731b12 · chenyukang/rust · GitHub

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error[E0596]: cannot borrow data in a `&` reference as mutable
  --> $DIR/issue_113842.rs:17:24
   |
LL |     let _y: &mut Foo = &mut &foo;
   |                        ^^^^^----
   |                             |
   |                             cannot borrow as mutable
   |
help: this expression is of type `&Foo`, which is an immutable reference
  --> $DIR/issue_113842.rs:17:29
   |
LL |     let _y: &mut Foo = &mut &foo;
   |                             ^^^^

error[E0596]: cannot borrow data in a `&` reference as mutable
  --> $DIR/issue_113842.rs:21:23
   |
LL |     some_library::foo(&mut some_library::bar());
   |                       ^^^^^-------------------
   |                            |
   |                            cannot borrow as mutable
   |
help: this expression is of type `&[i32]`, which is an immutable reference
  --> $DIR/issue_113842.rs:21:28
   |
LL |     some_library::foo(&mut some_library::bar());
   |                            ^^^^^^^^^^^^^^^^^^^

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0596`.