rollup merge of #23752: alexcrichton/remove-should-fail

This attribute has been deprecated in favor of #[should_panic]. This also
updates rustdoc to no longer accept the `should_fail` directive and instead
renames it to `should_panic`.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstd/io/buffered.rs b/src/libstd/io/buffered.rs
index 2a1294f23b2..23cbe79145a 100644
--- a/src/libstd/io/buffered.rs
+++ b/src/libstd/io/buffered.rs
@@ -681,7 +681,7 @@ mod tests {
     }
 
     #[test]
-    #[should_fail]
+    #[should_panic]
     fn dont_panic_in_drop_on_panicked_flush() {
         struct FailFlushWriter;