title: npm package fails to install "npm ERR! Error: EACCES: permission denied"
body: <pre>
  npm ERR! Linux 3.4.0+
  npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install" "lodash"
  npm ERR! node v5.10.1
  npm ERR! npm  v3.8.3
  npm ERR! path /root/test/node_modules/.staging/lodash-9a2aabe2
  npm ERR! code EACCES
  npm ERR! errno -13
  npm ERR! syscall rename
  
  npm ERR! Error: EACCES: permission denied, rename '/root/test/node_modules/.staging/lodash-9a2aabe2' -> '/root/test/node_modules/lodash'
  npm ERR!     at destStatted (/usr/lib/node_modules/npm/lib/install/action/finalize.js:25:7)
  npm ERR!     at FSReqWrap.oncomplete (fs.js:82:15)
  npm ERR!
  npm ERR! Error: EACCES: permission denied, rename '/root/test/node_modules/.staging/lodash-9a2aabe2' -> '/root/test/node_modules/lodash'
  npm ERR!     at Error (native)
  npm ERR!  [Error: EACCES: permission denied, rename '/root/test/node_modules/.staging/lodash-9a2aabe2' -> '/root/test/node_modules/lodash']
  npm ERR!
  npm ERR! Please try running this command again as root/Administrator.
  
  npm ERR! Please include the following file with any support request:
  npm ERR!     /root/test/npm-debug.log
  </pre>