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-rw-r--r--tests/ui/feature-gates/env-flag.rs3
-rw-r--r--tests/ui/feature-gates/env-flag.stderr2
2 files changed, 5 insertions, 0 deletions
diff --git a/tests/ui/feature-gates/env-flag.rs b/tests/ui/feature-gates/env-flag.rs
new file mode 100644
index 00000000000..9dfda2584fb
--- /dev/null
+++ b/tests/ui/feature-gates/env-flag.rs
@@ -0,0 +1,3 @@
+// compile-flags: --env A=B
+
+fn main() {}
diff --git a/tests/ui/feature-gates/env-flag.stderr b/tests/ui/feature-gates/env-flag.stderr
new file mode 100644
index 00000000000..5cb18cef9fb
--- /dev/null
+++ b/tests/ui/feature-gates/env-flag.stderr
@@ -0,0 +1,2 @@
+error: the `-Z unstable-options` flag must also be passed to enable the flag `env`
+