print docker env

Author: gengjiawen

.travis.yml

@@ -34,7 +34,7 @@ script:
         -v ~/.cache/electron:/root/.cache/electron \
         -v ~/.cache/electron-builder:/root/.cache/electron-builder \
         electronuserland/builder:wine-chrome \
-        /bin/bash -c "yarn --link-duplicates --pure-lockfile && yarn release --linux --win"
+        /bin/bash -c "npx envinfo && yarn --link-duplicates --pure-lockfile && yarn release --linux --win"
     else
       yarn release
     fi