error[E0499]: cannot borrow `*f` as mutable more than once at a time
  --> $DIR/two-phase-nonrecv-autoref.rs:51:11
   |
LL |         f(f(10));
   |         - ^ second mutable borrow occurs here
   |         |
   |         first mutable borrow occurs here
   |         first borrow later used by call

error[E0382]: use of moved value: `f`
  --> $DIR/two-phase-nonrecv-autoref.rs:58:11
   |
LL |     fn twice_ten_so<F: FnOnce(i32) -> i32>(f: Box<F>) {
   |                                            - move occurs because `f` has type `Box<F>`, which does not implement the `Copy` trait
LL |         f(f(10));
   |         - ^ value used here after move
   |         |
   |         value moved here

error[E0499]: cannot borrow `*f` as mutable more than once at a time
  --> $DIR/two-phase-nonrecv-autoref.rs:63:11
   |
LL |         f(f(10));
   |         - ^ second mutable borrow occurs here
   |         |
   |         first mutable borrow occurs here
   |         first borrow later used by call

error[E0382]: use of moved value: `f`
  --> $DIR/two-phase-nonrecv-autoref.rs:70:11
   |
LL |     fn twice_ten_oo(f: Box<dyn FnOnce(i32) -> i32>) {
   |                     - move occurs because `f` has type `Box<dyn FnOnce(i32) -> i32>`, which does not implement the `Copy` trait
LL |         f(f(10));
   |         - ^ value used here after move
   |         |
   |         value moved here

error[E0502]: cannot borrow `a` as immutable because it is also borrowed as mutable
  --> $DIR/two-phase-nonrecv-autoref.rs:108:27
   |
LL |     double_access(&mut a, &a);
   |     ------------- ------  ^^ immutable borrow occurs here
   |     |             |
   |     |             mutable borrow occurs here
   |     mutable borrow later used by call

error[E0502]: cannot borrow `i` as immutable because it is also borrowed as mutable
  --> $DIR/two-phase-nonrecv-autoref.rs:133:7
   |
LL |     i[i[3]] = 4;
   |     --^----
   |     |||
   |     ||immutable borrow occurs here
   |     |mutable borrow later used here
   |     mutable borrow occurs here
   |
help: try adding a local storing this...
  --> $DIR/two-phase-nonrecv-autoref.rs:133:8
   |
LL |     i[i[3]] = 4;
   |        ^^^
help: ...and then using that local here
  --> $DIR/two-phase-nonrecv-autoref.rs:133:6
   |
LL |     i[i[3]] = 4;
   |      ^^^^^^

error[E0502]: cannot borrow `i` as immutable because it is also borrowed as mutable
  --> $DIR/two-phase-nonrecv-autoref.rs:139:7
   |
LL |     i[i[3]] = i[4];
   |     --^----
   |     |||
   |     ||immutable borrow occurs here
   |     |mutable borrow later used here
   |     mutable borrow occurs here
   |
help: try adding a local storing this...
  --> $DIR/two-phase-nonrecv-autoref.rs:139:8
   |
LL |     i[i[3]] = i[4];
   |        ^^^
help: ...and then using that local here
  --> $DIR/two-phase-nonrecv-autoref.rs:139:6
   |
LL |     i[i[3]] = i[4];
   |      ^^^^^^

error: aborting due to 7 previous errors

Some errors have detailed explanations: E0382, E0499, E0502.
For more information about an error, try `rustc --explain E0382`.