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diff --git a/src/test/ui/nll/match-guards-partially-borrow.stderr b/src/test/ui/nll/match-guards-partially-borrow.stderr
new file mode 100644
index 000000000..48e3a7c69
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+++ b/src/test/ui/nll/match-guards-partially-borrow.stderr
@@ -0,0 +1,87 @@
+error[E0510]: cannot assign `q` in match guard
+  --> $DIR/match-guards-partially-borrow.rs:55:13
+   |
+LL |     match q {
+   |           - value is immutable in match guard
+...
+LL |             q = true;
+   |             ^^^^^^^^ cannot assign
+
+error[E0510]: cannot assign `r` in match guard
+  --> $DIR/match-guards-partially-borrow.rs:67:13
+   |
+LL |     match r {
+   |           - value is immutable in match guard
+...
+LL |             r = true;
+   |             ^^^^^^^^ cannot assign
+
+error[E0510]: cannot assign `t` in match guard
+  --> $DIR/match-guards-partially-borrow.rs:91:13
+   |
+LL |     match t {
+   |           - value is immutable in match guard
+...
+LL |             t = true;
+   |             ^^^^^^^^ cannot assign
+
+error[E0510]: cannot mutably borrow `x.0` in match guard
+  --> $DIR/match-guards-partially-borrow.rs:105:22
+   |
+LL |     match x {
+   |           - value is immutable in match guard
+...
+LL |                 Some(ref mut r) => *r = None,
+   |                      ^^^^^^^^^ cannot mutably borrow
+
+error[E0506]: cannot assign to `t` because it is borrowed
+  --> $DIR/match-guards-partially-borrow.rs:117:13
+   |
+LL |         s if {
+   |         - borrow of `t` occurs here
+LL |             t = !t;
+   |             ^^^^^^ assignment to borrowed `t` occurs here
+LL |             false
+LL |         } => (), // What value should `s` have in the arm?
+   |         - borrow later used here
+
+error[E0510]: cannot assign `y` in match guard
+  --> $DIR/match-guards-partially-borrow.rs:128:13
+   |
+LL |     match *y {
+   |           -- value is immutable in match guard
+...
+LL |             y = &true;
+   |             ^^^^^^^^^ cannot assign
+
+error[E0510]: cannot assign `z` in match guard
+  --> $DIR/match-guards-partially-borrow.rs:139:13
+   |
+LL |     match z {
+   |           - value is immutable in match guard
+...
+LL |             z = &true;
+   |             ^^^^^^^^^ cannot assign
+
+error[E0510]: cannot assign `a` in match guard
+  --> $DIR/match-guards-partially-borrow.rs:151:13
+   |
+LL |     match a {
+   |           - value is immutable in match guard
+...
+LL |             a = &true;
+   |             ^^^^^^^^^ cannot assign
+
+error[E0510]: cannot assign `b` in match guard
+  --> $DIR/match-guards-partially-borrow.rs:162:13
+   |
+LL |     match b {
+   |           - value is immutable in match guard
+...
+LL |             b = &true;
+   |             ^^^^^^^^^ cannot assign
+
+error: aborting due to 9 previous errors
+
+Some errors have detailed explanations: E0506, E0510.
+For more information about an error, try `rustc --explain E0506`.