delete stray file

src/test/ui/nll/closure-requirements/via-upvar-nested.stderr

-note: External requirements
-  --> $DIR/via-upvar-nested.rs:24:28
-   |
-24 |             let closure1 = || p = &y;
-   |                            ^^^^^^^^^
-   |
-   = note: _0: ()
-   = note: _1: &mut [closure@$DIR/via-upvar-nested.rs:24:28: 24:37 p:&mut &i32, y:&i32]
-
-note: External requirements
-  --> $DIR/via-upvar-nested.rs:23:27
-   |
-23 |           let mut closure = || {
-   |  ___________________________^
-24 | |             let closure1 = || p = &y;
-25 | |             closure1();
-26 | |         };
-   | |_________^
-   |
-   = note: _0: ()
-   = note: _1: &mut [closure@$DIR/via-upvar-nested.rs:23:27: 26:10 p:&mut &i32, y:&i32]
-   = note: where '_#1r: '_#2r
-
-error[E0596]: cannot borrow immutable item `closure1` as mutable (Mir)
-  --> $DIR/via-upvar-nested.rs:25:13
-   |
-25 |             closure1();
-   |             ^^^^^^^^ cannot borrow as mutable
-
-error[E0597]: `**y` does not live long enough (Ast)
-  --> $DIR/via-upvar-nested.rs:24:36
-   |
-24 |             let closure1 = || p = &y;
-   |                            --      ^ does not live long enough
-   |                            |
-   |                            capture occurs here
-...
-29 |     }
-   |     - borrowed value only lives until here
-...
-32 | }
-   | - borrowed value needs to live until here
-
-error[E0596]: cannot borrow immutable local variable `closure1` as mutable (Ast)
-  --> $DIR/via-upvar-nested.rs:25:13
-   |
-24 |             let closure1 = || p = &y;
-   |                 -------- consider changing this to `mut closure1`
-25 |             closure1();
-   |             ^^^^^^^^ cannot borrow mutably
-
-note: No external requirements
-  --> $DIR/via-upvar-nested.rs:16:1
-   |
-16 | / fn test() {
-17 | |     let x = 44;
-18 | |     let mut p = &x;
-19 | |
-...  |
-31 | |     deref(p);
-32 | | }
-   | |_^
-
-error[E0597]: borrowed value does not live long enough (Mir)
-  --> $DIR/via-upvar-nested.rs:29:6
-   |
-21 |         let y = 22;
-   |             - temporary value created here
-...
-29 |     }
-   |      ^ temporary value dropped here while still borrowed
-   |
-   = note: consider using a `let` binding to increase its lifetime
-
-error[E0502]: cannot borrow `(*p)` as immutable because it is also borrowed as mutable (Mir)
-  --> $DIR/via-upvar-nested.rs:31:11
-   |
-23 |         let mut closure = || {
-   |                           -- mutable borrow occurs here
-24 |             let closure1 = || p = &y;
-   |                               - previous borrow occurs due to use of `(*p)` in closure
-...
-31 |     deref(p);
-   |           ^ immutable borrow occurs here
-
-error: aborting due to 5 previous errors
-