More attempts to debug travis

alexcrichton · alexcrichton · commit 7d1a8624a5d4 · 2016-06-21T13:47:24.000-07:00
diff --git a/docker/build.sh b/docker/build.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+set -ex
+
 for channel in stable beta nightly; do
     docker build \
         --no-cache \
