diff --git a/src/test/rustdoc-ui/coverage/output-format-fail-check.rs b/src/test/rustdoc-ui/coverage/output-format-fail-check.rs
deleted file mode 100644
index 30b525df76359..0000000000000
--- a/src/test/rustdoc-ui/coverage/output-format-fail-check.rs
+++ /dev/null
@@ -1,4 +0,0 @@
-// compile-flags:-Z unstable-options --output-format
-
-/// toudoum!
-pub struct SomeStruct;
diff --git a/src/test/rustdoc-ui/coverage/output-format-fail-check.stderr b/src/test/rustdoc-ui/coverage/output-format-fail-check.stderr
deleted file mode 100644
index 9e9aa0e050163..0000000000000
--- a/src/test/rustdoc-ui/coverage/output-format-fail-check.stderr
+++ /dev/null
@@ -1,6 +0,0 @@
-warning: the 'output-format' flag is considered deprecated
-   |
-   = warning: see issue #44136 <https://github.com/rust-lang/rust/issues/44136> for more information
-
-error: too many file operands
-