message: build: synth.metadata had bad entry
diff: "git": {
  "name": ".",
  "remote": "git@github.com:googleapis/nodejs-logging.git",
  - "sha": "198485ced9e3bf26440eb182f3eba1b82a10b560"
  + "sha": "d1df1bdc1d536d3626dc1b85d357cf6ec18f80e8"
  }
  },
  {
  "git": {
  "name": "googleapis",
  "remote": "https://github.com/googleapis/googleapis.git",
  - "sha": "1bd77e8ce6f953ac641af7966d0c52646afc16a8",
  - "internalRef": "305974465"
  - }
  - },
  - {
  - "git": {
  - "name": "synthtool",
  - "remote": "https://github.com/googleapis/synthtool.git",
  - "sha": "6f32150677c9784f3c3a7e1949472bd29c9d72c5"
  + "sha": "3824f547aa44df459580615c73cabb30a2a78ee0",
  + "internalRef": "306254195"
  }
  }
  ],
  