when there are multiple filenames, print what got interpreted as 2nd …

…filename
rust-lang · Feb 10, 2019 · 3a3691f · 3a3691f
1 parent 3e58dab
commit 3a3691f
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/src/librustc_driver/lib.rs b/src/librustc_driver/lib.rs
@@ -839,7 +839,15 @@ impl<'a> CompilerCalls<'a> for RustcDefaultCalls {
                 early_error(sopts.error_format, "no input filename given");
             }
             1 => panic!("make_input should have provided valid inputs"),
-            _ => early_error(sopts.error_format, "multiple input filenames provided"),
+            _ =>
+                early_error(
+                    sopts.error_format,
+                    &format!(
+                        "multiple input filenames provided (first two filenames are `{}` and `{}`)",
+                        matches.free[0],
+                        matches.free[1],
+                    ),
+                )
         }
     }