{
  schedule: [
    'before 5am on the first day of the month',
  ],
  semanticCommits: 'enabled',
  commitMessageLowerCase: 'never',
  configMigration: true,
  dependencyDashboard: true,
  customManagers: [
    {
      customType: 'regex',
      fileMatch: [
        '^rust-toolchain\\.toml$',
        'Cargo.toml$',
        'clippy.toml$',
        '\\.clippy.toml$',
        '^\\.github/workflows/ci.yml$',
        '^\\.github/workflows/rust-next.yml$',
      ],
      matchStrings: [
        'MSRV.*?(?<currentValue>\\d+\\.\\d+(\\.\\d+)?)',
        '(?<currentValue>\\d+\\.\\d+(\\.\\d+)?).*?MSRV',
      ],
      depNameTemplate: 'MSRV',
      packageNameTemplate: 'rust-lang/rust',
      datasourceTemplate: 'github-releases',
    },
    {
      customType: 'regex',
      fileMatch: [
        '^rust-toolchain\\.toml$',
        'Cargo.toml$',
        'clippy.toml$',
        '\\.clippy.toml$',
        '^\\.github/workflows/ci.yml$',
        '^\\.github/workflows/rust-next.yml$',
      ],
      matchStrings: [
        'STABLE.*?(?<currentValue>\\d+\\.\\d+(\\.\\d+)?)',
        '(?<currentValue>\\d+\\.\\d+(\\.\\d+)?).*?STABLE',
      ],
      depNameTemplate: 'STABLE',
      packageNameTemplate: 'rust-lang/rust',
      datasourceTemplate: 'github-releases',
    },
  ],
  packageRules: [
    {
      commitMessageTopic: 'MSRV',
      matchManagers: [
        'custom.regex',
      ],
      matchPackageNames: [
        'MSRV',
      ],
      minimumReleaseAge: '336 days',  // 8 releases * 6 weeks per release * 7 days per week
      internalChecksFilter: 'strict',
      extractVersion: '^(?<version>\\d+\\.\\d+)',  // Drop the patch version
      schedule: [
        '* * * * *',
      ],
    },
    {
      commitMessageTopic: 'Rust Stable',
      matchManagers: [
        'custom.regex',
      ],
      matchPackageNames: [
        'STABLE',
      ],
      extractVersion: '^(?<version>\\d+\\.\\d+)',  // Drop the patch version
      schedule: [
        '* * * * *',
      ],
    },
    // Goals:
    // - Keep version reqs low, ignoring compatible normal/build dependencies
    // - Take advantage of latest dev-dependencies
    // - Rollup safe upgrades to reduce CI runner load
    // - Help keep number of versions down by always using latest breaking change
    // - Have lockfile and manifest in-sync
    {
      matchManagers: [
        'cargo',
      ],
      matchDepTypes: [
        'build-dependencies',
        'dependencies',
      ],
      matchCurrentVersion: '>=0.1.0',
      matchUpdateTypes: [
        'patch',
      ],
      enabled: false,
    },
    {
      matchManagers: [
        'cargo',
      ],
      matchDepTypes: [
        'build-dependencies',
        'dependencies',
      ],
      matchCurrentVersion: '>=1.0.0',
      matchUpdateTypes: [
        'minor',
        'patch',
      ],
      enabled: false,
    },
    {
      matchManagers: [
        'cargo',
      ],
      matchDepTypes: [
        'dev-dependencies',
      ],
      matchCurrentVersion: '>=0.1.0',
      matchUpdateTypes: [
        'patch',
      ],
      automerge: true,
      groupName: 'compatible (dev)',
    },
    {
      matchManagers: [
        'cargo',
      ],
      matchDepTypes: [
        'dev-dependencies',
      ],
      matchCurrentVersion: '>=1.0.0',
      matchUpdateTypes: [
        'minor',
        'patch',
      ],
      automerge: true,
      groupName: 'compatible (dev)',
    },
  ],
}