The command "cd /var/www/change.cash/releases/1 && /usr/bin/npm install" fa
  iled.

  Exit Code: 1 (General error)

  Host Name: localhost

  ================
    ✔ gifsicle pre-build test passed successfully
    ✔ mozjpeg pre-build test passed successfully
    ✔ optipng pre-build test passed successfully
    ⚠ The `/var/www/change.cash/releases/1/node_modules/pngquant-bin/vendor/p
  ngquant` binary doesn't seem to work correctly
    ⚠ pngquant pre-build test failed
    ℹ compiling from source
    ✔ pngquant pre-build test passed successfully
    ✖ Error: pngquant failed to build, make sure that libpng-dev is installed
      at Promise.all.then.arr (/var/www/change.cash/releases/1/node_modules/p
  ngquant-bin/node_modules/bin-build/node_modules/execa/index.js:231:11)
      at process._tickCallback (internal/process/next_tick.js:68:7)
  npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_module
  s/fsevents):
  npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsev
  ents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","ar
  ch":"x64"})

  npm ERR! code ELIFECYCLE
  npm ERR! errno 1
  npm ERR! pngquant-bin@4.0.0 postinstall: `node lib/install.js`
  npm ERR! Exit status 1
  npm ERR!
  npm ERR! Failed at the pngquant-bin@4.0.0 postinstall script.
  npm ERR! This is probably not a problem with npm. There is likely additiona
  l logging output above.

  npm ERR! A complete log of this run can be found in:
  npm ERR!     /root/.npm/_logs/2018-07-23T11_46_37_649Z-debug.log