error: malformed `unix_sigpipe` attribute input
  --> $DIR/unix_sigpipe-list.rs:3:1
   |
LL | #[unix_sigpipe(inherit)]
   | ^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: the following are the possible correct uses
   |
LL | #[unix_sigpipe = "inherit|sig_ign|sig_dfl"]
   | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
LL | #[unix_sigpipe]
   | ~~~~~~~~~~~~~~~

error: aborting due to previous error