gistfile1.txt

==> Starting build()...

> mattermost-desktop@4.2.0 postinstall /tmp/makepkg/mattermost-desktop/src/desktop-4.2.0
> electron-builder install-app-deps && npm run extract-dict

/tmp/makepkg/mattermost-desktop/src/desktop-4.2.0/node_modules/electron-builder/node_modules/yargs/lib/command.js:22
    globalMiddleware.push(...middlewares)
                          ^^^

SyntaxError: Unexpected token ...
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:373:25)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/tmp/makepkg/mattermost-desktop/src/desktop-4.2.0/node_modules/electron-builder/node_modules/yargs/lib/argsert.js:2:17)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)

npm ERR! Linux 4.19.11-arch1-1-ARCH
npm ERR! argv "/home/cjs/.nvm/versions/node/v4.9.1/bin/node" "/home/cjs/.nvm/versions/node/v4.9.1/bin/npm" "install" "--cache" "/tmp/makepkg/mattermost-desktop/src/npm-cache"
npm ERR! node v4.9.1
npm ERR! npm  v2.15.11
npm ERR! code ELIFECYCLE
npm ERR! mattermost-desktop@4.2.0 postinstall: `electron-builder install-app-deps && npm run extract-dict`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the mattermost-desktop@4.2.0 postinstall script 'electron-builder install-app-deps && npm run extract-dict'.
npm ERR! This is most likely a problem with the mattermost-desktop package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     electron-builder install-app-deps && npm run extract-dict
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs mattermost-desktop
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!
npm ERR!     npm owner ls mattermost-desktop
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /tmp/makepkg/mattermost-desktop/src/desktop-4.2.0/npm-debug.log
==> ERROR: A failure occurred in build().
    Aborting...