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Diffstat (limited to 'src/test/ui/expr/if/ifmt-unknown-trait.rs')
-rw-r--r--src/test/ui/expr/if/ifmt-unknown-trait.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/test/ui/expr/if/ifmt-unknown-trait.rs b/src/test/ui/expr/if/ifmt-unknown-trait.rs
new file mode 100644
index 00000000000..158152c89a4
--- /dev/null
+++ b/src/test/ui/expr/if/ifmt-unknown-trait.rs
@@ -0,0 +1,4 @@
+fn main() {
+    format!("{:notimplemented}", "3");
+    //~^ ERROR: unknown format trait `notimplemented`
+}