[
  {
    "name": "libc",
    "version": "0.2.139"
  },
  {
    "name": "proc-macro2",
    "version": "1.0.51"
  },
  {
    "name": "quote",
    "version": "1.0.23"
  },
  {
    "name": "syn",
    "version": "1.0.107"
  },
  {
    "name": "unicode-ident",
    "version": "1.0.6"
  }
]