lua-yajl 2.0-1 is now installed in /Users/travis/.luarocks (license: MIT/X11)
npm ERR! git rev-list -n1 node-12: fatal: ambiguous argument 'node-12': unknown revision or path not in the working tree.
npm ERR! git rev-list -n1 node-12: Use '--' to separate paths from revisions, like this:
npm ERR! git rev-list -n1 node-12: 'git <command> [<revision>...] -- [<file>...]'
npm ERR! git rev-list -n1 node-12: 
npm ERR! git rev-list -n1 node-12: fatal: ambiguous argument 'node-12': unknown revision or path not in the working tree.
npm ERR! git rev-list -n1 node-12: Use '--' to separate paths from revisions, like this:
npm ERR! git rev-list -n1 node-12: 'git <command> [<revision>...] -- [<file>...]'
npm ERR! git rev-list -n1 node-12: 
The authenticity of host 'github.com (192.30.253.113)' can't be established.
RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8.
Are you sure you want to continue connecting (yes/no)? 
No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself.
Check the details on how to adjust your build configuration on: https://docs.travis-ci.com/user/common-build-problems/#Build-times-out-because-no-output-was-received
The build has been terminated