Fix #10755 - ICE: `--linker=`

Trap the io_error condition so that a more informative error message is
displayed when the linker program cannot be started, such as when the
name of the linker binary is accidentally mistyped.

closes #10755

1 files changed, 15 insertions, 0 deletions

diff --git a/src/test/compile-fail/issue-10755.rs b/src/test/compile-fail/issue-10755.rs
new file mode 100644
index 00000000000..91afa62b58c
--- /dev/null
+++ b/src/test/compile-fail/issue-10755.rs
@@ -0,0 +1,15 @@
+// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// compile-flags: --linker=llllll
+// error-pattern: the linker `llllll`
+
+fn main() {
+}