1 files changed, 39 insertions, 0 deletions
diff --git a/src/test/ui/feature-gates/feature-gate-is_sorted.stderr b/src/test/ui/feature-gates/feature-gate-is_sorted.stderr
new file mode 100644
index 000000000..ccac82707
--- /dev/null
+++ b/src/test/ui/feature-gates/feature-gate-is_sorted.stderr
@@ -0,0 +1,39 @@
+error[E0658]: use of unstable library feature 'is_sorted': new API
+  --> $DIR/feature-gate-is_sorted.rs:3:33
+   |
+LL |     assert!([1, 2, 2, 9].iter().is_sorted());
+   |                                 ^^^^^^^^^
+   |
+   = note: see issue #53485 <https://github.com/rust-lang/rust/issues/53485> for more information
+   = help: add `#![feature(is_sorted)]` to the crate attributes to enable
+
+error[E0658]: use of unstable library feature 'is_sorted': new API
+  --> $DIR/feature-gate-is_sorted.rs:5:39
+   |
+LL |     assert!(![-2i32, -1, 0, 3].iter().is_sorted_by_key(|n| n.abs()));
+   |                                       ^^^^^^^^^^^^^^^^
+   |
+   = note: see issue #53485 <https://github.com/rust-lang/rust/issues/53485> for more information
+   = help: add `#![feature(is_sorted)]` to the crate attributes to enable
+
+error[E0658]: use of unstable library feature 'is_sorted': new API
+  --> $DIR/feature-gate-is_sorted.rs:9:26
+   |
+LL |     assert!([1, 2, 2, 9].is_sorted());
+   |                          ^^^^^^^^^
+   |
+   = note: see issue #53485 <https://github.com/rust-lang/rust/issues/53485> for more information
+   = help: add `#![feature(is_sorted)]` to the crate attributes to enable
+
+error[E0658]: use of unstable library feature 'is_sorted': new API
+  --> $DIR/feature-gate-is_sorted.rs:11:32
+   |
+LL |     assert!(![-2i32, -1, 0, 3].is_sorted_by_key(|n| n.abs()));
+   |                                ^^^^^^^^^^^^^^^^
+   |
+   = note: see issue #53485 <https://github.com/rust-lang/rust/issues/53485> for more information
+   = help: add `#![feature(is_sorted)]` to the crate attributes to enable
+
+error: aborting due to 4 previous errors
+
+For more information about this error, try `rustc --explain E0658`.