diff -r d9f85f61f0ed -r ce088b38f92b rust/chg/src/procutil.rs
--- a/rust/chg/src/procutil.rs	Fri Dec 06 16:09:03 2019 -0500
+++ b/rust/chg/src/procutil.rs	Sat Dec 07 13:06:25 2019 -0800
@@ -33,7 +33,7 @@
     }
     let r = unsafe { libc::fcntl(fd, libc::F_SETFL, flags & !libc::O_NONBLOCK) };
     if r < 0 {
-        return Err(io::Error::last_os_error())
+        return Err(io::Error::last_os_error());
     }
     Ok(())
 }