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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build SlackKit, reference 4.8.0 (3823ae), with Swift 6.1 for macOS (SPM) on 27 Apr 2025 07:11:04 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/pvzig/SlackKit.git
Reference: 4.8.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/pvzig/SlackKit
 * tag               4.8.0      -> FETCH_HEAD
HEAD is now at 3823aee Revert oauth endpoint change and query params fix (#207)
Cloned https://github.com/pvzig/SlackKit.git
Revision (git rev-parse @):
3823aee4cfd05d618d2aaf334681b9bc4db89a63
SUCCESS checkout https://github.com/pvzig/SlackKit.git at 4.8.0
Fetching https://github.com/vapor/websocket
Fetching https://github.com/daltoniam/Starscream
Fetching https://github.com/httpswift/swifter.git
[1/2596] Fetching websocket
[53/8646] Fetching websocket, swifter
[235/13679] Fetching websocket, swifter, starscream
Fetched https://github.com/daltoniam/Starscream from cache (1.35s)
Fetched https://github.com/httpswift/swifter.git from cache (1.35s)
Fetched https://github.com/vapor/websocket from cache (1.35s)
Computing version for https://github.com/vapor/websocket
Computed https://github.com/vapor/websocket at 1.1.2 (2.08s)
Fetching https://github.com/vapor/crypto.git
Fetching https://github.com/apple/swift-nio.git from cache
Fetching https://github.com/vapor/http.git
Fetching https://github.com/vapor/core.git
Fetching https://github.com/apple/swift-nio-ssl.git from cache
[1/2786] Fetching crypto
[29/22929] Fetching crypto, core
[22930/48396] Fetching crypto, core, http
Fetched https://github.com/vapor/core.git from cache (2.35s)
Fetched https://github.com/vapor/crypto.git from cache (2.35s)
Fetched https://github.com/vapor/http.git from cache (2.35s)
Fetched https://github.com/apple/swift-nio-ssl.git from cache (2.35s)
Fetched https://github.com/apple/swift-nio.git from cache (2.36s)
Computing version for https://github.com/httpswift/swifter.git
Computed https://github.com/httpswift/swifter.git at 1.5.0 (2.98s)
Computing version for https://github.com/apple/swift-nio-ssl.git
Computed https://github.com/apple/swift-nio-ssl.git at 1.4.0 (0.61s)
Fetching https://github.com/apple/swift-nio-ssl-support.git
[1/16] Fetching swift-nio-ssl-support
Fetched https://github.com/apple/swift-nio-ssl-support.git from cache (0.55s)
Computing version for https://github.com/apple/swift-nio-ssl-support.git
Computed https://github.com/apple/swift-nio-ssl-support.git at 1.0.0 (1.14s)
Computing version for https://github.com/daltoniam/Starscream
Computed https://github.com/daltoniam/Starscream at 4.0.8 (0.59s)
Computing version for https://github.com/vapor/crypto.git
Computed https://github.com/vapor/crypto.git at 3.4.1 (0.58s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 1.14.4 (0.59s)
Fetching https://github.com/apple/swift-nio-zlib-support.git
[1/15] Fetching swift-nio-zlib-support
Fetched https://github.com/apple/swift-nio-zlib-support.git from cache (0.58s)
Computing version for https://github.com/apple/swift-nio-zlib-support.git
Computed https://github.com/apple/swift-nio-zlib-support.git at 1.0.0 (1.17s)
Computing version for https://github.com/vapor/http.git
Computed https://github.com/vapor/http.git at 3.4.0 (0.57s)
Computing version for https://github.com/vapor/core.git
Computed https://github.com/vapor/core.git at 3.10.1 (0.58s)
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 1.14.4
Creating working copy for https://github.com/apple/swift-nio-zlib-support.git
Working copy of https://github.com/apple/swift-nio-zlib-support.git resolved at 1.0.0
Creating working copy for https://github.com/apple/swift-nio-ssl.git
Working copy of https://github.com/apple/swift-nio-ssl.git resolved at 1.4.0
Creating working copy for https://github.com/httpswift/swifter.git
Working copy of https://github.com/httpswift/swifter.git resolved at 1.5.0
Creating working copy for https://github.com/vapor/websocket
Working copy of https://github.com/vapor/websocket resolved at 1.1.2
Creating working copy for https://github.com/daltoniam/Starscream
Working copy of https://github.com/daltoniam/Starscream resolved at 4.0.8
Creating working copy for https://github.com/vapor/http.git
Working copy of https://github.com/vapor/http.git resolved at 3.4.0
Creating working copy for https://github.com/vapor/crypto.git
Working copy of https://github.com/vapor/crypto.git resolved at 3.4.1
Creating working copy for https://github.com/vapor/core.git
Working copy of https://github.com/vapor/core.git resolved at 3.10.1
Creating working copy for https://github.com/apple/swift-nio-ssl-support.git
Working copy of https://github.com/apple/swift-nio-ssl-support.git resolved at 1.0.0
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "slackkit",
      "name": "SlackKit",
      "url": "https://github.com/pvzig/SlackKit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SlackKit",
      "dependencies": [
        {
          "identity": "swifter",
          "name": "Swifter",
          "url": "https://github.com/httpswift/swifter.git",
          "version": "1.5.0",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swifter",
          "dependencies": [
          ]
        },
        {
          "identity": "websocket",
          "name": "WebSocket",
          "url": "https://github.com/vapor/websocket",
          "version": "1.1.2",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/websocket",
          "dependencies": [
            {
              "identity": "core",
              "name": "Core",
              "url": "https://github.com/vapor/core.git",
              "version": "3.10.1",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/core",
              "dependencies": [
                {
                  "identity": "swift-nio",
                  "name": "swift-nio",
                  "url": "https://github.com/apple/swift-nio.git",
                  "version": "1.14.4",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
                  "dependencies": [
                    {
                      "identity": "swift-nio-zlib-support",
                      "name": "swift-nio-zlib-support",
                      "url": "https://github.com/apple/swift-nio-zlib-support.git",
                      "version": "1.0.0",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                      "dependencies": [
                      ]
                    }
                  ]
                }
              ]
            },
            {
              "identity": "crypto",
              "name": "Crypto",
              "url": "https://github.com/vapor/crypto.git",
              "version": "3.4.1",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/crypto",
              "dependencies": [
                {
                  "identity": "core",
                  "name": "Core",
                  "url": "https://github.com/vapor/core.git",
                  "version": "3.10.1",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/core",
                  "dependencies": [
                    {
                      "identity": "swift-nio",
                      "name": "swift-nio",
                      "url": "https://github.com/apple/swift-nio.git",
                      "version": "1.14.4",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
                      "dependencies": [
                        {
                          "identity": "swift-nio-zlib-support",
                          "name": "swift-nio-zlib-support",
                          "url": "https://github.com/apple/swift-nio-zlib-support.git",
                          "version": "1.0.0",
                          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                          "dependencies": [
                          ]
                        }
                      ]
                    }
                  ]
                },
                {
                  "identity": "swift-nio-ssl-support",
                  "name": "swift-nio-ssl-support",
                  "url": "https://github.com/apple/swift-nio-ssl-support.git",
                  "version": "1.0.0",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-ssl-support",
                  "dependencies": [
                  ]
                }
              ]
            },
            {
              "identity": "http",
              "name": "HTTP",
              "url": "https://github.com/vapor/http.git",
              "version": "3.4.0",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/http",
              "dependencies": [
                {
                  "identity": "core",
                  "name": "Core",
                  "url": "https://github.com/vapor/core.git",
                  "version": "3.10.1",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/core",
                  "dependencies": [
                    {
                      "identity": "swift-nio",
                      "name": "swift-nio",
                      "url": "https://github.com/apple/swift-nio.git",
                      "version": "1.14.4",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
                      "dependencies": [
                        {
                          "identity": "swift-nio-zlib-support",
                          "name": "swift-nio-zlib-support",
                          "url": "https://github.com/apple/swift-nio-zlib-support.git",
                          "version": "1.0.0",
                          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                          "dependencies": [
                          ]
                        }
                      ]
                    }
                  ]
                },
                {
                  "identity": "swift-nio",
                  "name": "swift-nio",
                  "url": "https://github.com/apple/swift-nio.git",
                  "version": "1.14.4",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
                  "dependencies": [
                    {
                      "identity": "swift-nio-zlib-support",
                      "name": "swift-nio-zlib-support",
                      "url": "https://github.com/apple/swift-nio-zlib-support.git",
                      "version": "1.0.0",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                      "dependencies": [
                      ]
                    }
                  ]
                },
                {
                  "identity": "swift-nio-ssl",
                  "name": "swift-nio-ssl",
                  "url": "https://github.com/apple/swift-nio-ssl.git",
                  "version": "1.4.0",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-ssl",
                  "dependencies": [
                    {
                      "identity": "swift-nio",
                      "name": "swift-nio",
                      "url": "https://github.com/apple/swift-nio.git",
                      "version": "1.14.4",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
                      "dependencies": [
                        {
                          "identity": "swift-nio-zlib-support",
                          "name": "swift-nio-zlib-support",
                          "url": "https://github.com/apple/swift-nio-zlib-support.git",
                          "version": "1.0.0",
                          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                          "dependencies": [
                          ]
                        }
                      ]
                    },
                    {
                      "identity": "swift-nio-ssl-support",
                      "name": "swift-nio-ssl-support",
                      "url": "https://github.com/apple/swift-nio-ssl-support.git",
                      "version": "1.0.0",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-ssl-support",
                      "dependencies": [
                      ]
                    }
                  ]
                }
              ]
            },
            {
              "identity": "swift-nio",
              "name": "swift-nio",
              "url": "https://github.com/apple/swift-nio.git",
              "version": "1.14.4",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
              "dependencies": [
                {
                  "identity": "swift-nio-zlib-support",
                  "name": "swift-nio-zlib-support",
                  "url": "https://github.com/apple/swift-nio-zlib-support.git",
                  "version": "1.0.0",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                  "dependencies": [
                  ]
                }
              ]
            },
            {
              "identity": "swift-nio-ssl",
              "name": "swift-nio-ssl",
              "url": "https://github.com/apple/swift-nio-ssl.git",
              "version": "1.4.0",
              "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-ssl",
              "dependencies": [
                {
                  "identity": "swift-nio",
                  "name": "swift-nio",
                  "url": "https://github.com/apple/swift-nio.git",
                  "version": "1.14.4",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio",
                  "dependencies": [
                    {
                      "identity": "swift-nio-zlib-support",
                      "name": "swift-nio-zlib-support",
                      "url": "https://github.com/apple/swift-nio-zlib-support.git",
                      "version": "1.0.0",
                      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-zlib-support",
                      "dependencies": [
                      ]
                    }
                  ]
                },
                {
                  "identity": "swift-nio-ssl-support",
                  "name": "swift-nio-ssl-support",
                  "url": "https://github.com/apple/swift-nio-ssl-support.git",
                  "version": "1.0.0",
                  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-nio-ssl-support",
                  "dependencies": [
                  ]
                }
              ]
            }
          ]
        },
        {
          "identity": "starscream",
          "name": "Starscream",
          "url": "https://github.com/daltoniam/Starscream",
          "version": "4.0.8",
          "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Starscream",
          "dependencies": [
          ]
        }
      ]
    }
  ]
}
Fetching https://github.com/pvzig/SlackKit.git
[1/5065] Fetching slackkit
Fetched https://github.com/pvzig/SlackKit.git from cache (3.09s)
Fetching https://github.com/httpswift/swifter.git from cache
Fetching https://github.com/daltoniam/Starscream from cache
Fetching https://github.com/vapor/websocket from cache
Fetched https://github.com/daltoniam/Starscream from cache (0.49s)
Fetched https://github.com/httpswift/swifter.git from cache (0.49s)
Fetched https://github.com/vapor/websocket from cache (0.49s)
Computing version for https://github.com/vapor/websocket
Computed https://github.com/vapor/websocket at 1.1.2 (0.55s)
Fetching https://github.com/vapor/http.git from cache
Fetching https://github.com/vapor/crypto.git from cache
Fetching https://github.com/vapor/core.git from cache
Fetching https://github.com/apple/swift-nio-ssl.git from cache
Fetching https://github.com/apple/swift-nio.git from cache
Fetched https://github.com/vapor/crypto.git from cache (0.44s)
Fetched https://github.com/vapor/http.git from cache (0.56s)
Fetched https://github.com/vapor/core.git from cache (0.68s)
Fetched https://github.com/apple/swift-nio-ssl.git from cache (0.69s)
Fetched https://github.com/apple/swift-nio.git from cache (0.69s)
Computing version for https://github.com/httpswift/swifter.git
Computed https://github.com/httpswift/swifter.git at 1.5.0 (0.75s)
Computing version for https://github.com/apple/swift-nio-ssl.git
Computed https://github.com/apple/swift-nio-ssl.git at 1.4.0 (0.03s)
Fetching https://github.com/apple/swift-nio-ssl-support.git from cache
Fetched https://github.com/apple/swift-nio-ssl-support.git from cache (0.39s)
Computing version for https://github.com/apple/swift-nio-ssl-support.git
Computed https://github.com/apple/swift-nio-ssl-support.git at 1.0.0 (0.44s)
Computing version for https://github.com/daltoniam/Starscream
Computed https://github.com/daltoniam/Starscream at 4.0.8 (0.03s)
Computing version for https://github.com/vapor/crypto.git
Computed https://github.com/vapor/crypto.git at 3.4.1 (0.03s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 1.14.4 (0.03s)
Fetching https://github.com/apple/swift-nio-zlib-support.git from cache
Fetched https://github.com/apple/swift-nio-zlib-support.git from cache (0.46s)
Computing version for https://github.com/apple/swift-nio-zlib-support.git
Computed https://github.com/apple/swift-nio-zlib-support.git at 1.0.0 (0.51s)
Computing version for https://github.com/vapor/http.git
Computed https://github.com/vapor/http.git at 3.4.0 (0.03s)
Computing version for https://github.com/vapor/core.git
Computed https://github.com/vapor/core.git at 3.10.1 (0.03s)
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 1.14.4
Creating working copy for https://github.com/vapor/core.git
Working copy of https://github.com/vapor/core.git resolved at 3.10.1
Creating working copy for https://github.com/pvzig/SlackKit.git
Working copy of https://github.com/pvzig/SlackKit.git resolved at 4.8.0 (3823aee)
Creating working copy for https://github.com/vapor/websocket
Working copy of https://github.com/vapor/websocket resolved at 1.1.2
Creating working copy for https://github.com/apple/swift-nio-ssl.git
Working copy of https://github.com/apple/swift-nio-ssl.git resolved at 1.4.0
Creating working copy for https://github.com/apple/swift-nio-ssl-support.git
Working copy of https://github.com/apple/swift-nio-ssl-support.git resolved at 1.0.0
Creating working copy for https://github.com/httpswift/swifter.git
Working copy of https://github.com/httpswift/swifter.git resolved at 1.5.0
Creating working copy for https://github.com/daltoniam/Starscream
Working copy of https://github.com/daltoniam/Starscream resolved at 4.0.8
Creating working copy for https://github.com/vapor/http.git
Working copy of https://github.com/vapor/http.git resolved at 3.4.0
Creating working copy for https://github.com/apple/swift-nio-zlib-support.git
Working copy of https://github.com/apple/swift-nio-zlib-support.git resolved at 1.0.0
Creating working copy for https://github.com/vapor/crypto.git
Working copy of https://github.com/vapor/crypto.git resolved at 3.4.1
warning: 'swift-nio-ssl-support': ignoring declared target(s) 'swift-nio-ssl-support' in the system package
warning: 'swift-nio-zlib-support': ignoring declared target(s) 'swift-nio-zlib-support' in the system package
warning: '.resolve-product-dependencies': dependency 'slackkit' is not used by any target
Found 3 product dependencies
  - Swifter
  - WebSocket
  - Starscream
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/pvzig/SlackKit.git
https://github.com/pvzig/SlackKit.git
{
  "dependencies" : [
    {
      "identity" : "swifter",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.5.0",
            "upper_bound" : "1.6.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/httpswift/swifter.git"
    },
    {
      "identity" : "websocket",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.2",
            "upper_bound" : "1.2.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/vapor/websocket"
    },
    {
      "identity" : "starscream",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "4.0.4",
            "upper_bound" : "4.1.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/daltoniam/Starscream"
    }
  ],
  "manifest_display_name" : "SlackKit",
  "name" : "SlackKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.10"
    },
    {
      "name" : "ios",
      "version" : "10.0"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    }
  ],
  "products" : [
    {
      "name" : "SlackKit",
      "targets" : [
        "SlackKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SKClient",
      "targets" : [
        "SKClient"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SKCore",
      "targets" : [
        "SKCore"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SKRTMAPI",
      "targets" : [
        "SKRTMAPI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SKServer",
      "targets" : [
        "SKServer"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SKWebAPI",
      "targets" : [
        "SKWebAPI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "swift_languages_versions" : [
    "5"
  ],
  "targets" : [
    {
      "c99name" : "SlackKitTests",
      "module_type" : "SwiftTarget",
      "name" : "SlackKitTests",
      "path" : "SlackKitTests",
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/SlackKitTests/Resources",
          "rule" : {
            "copy" : {
            }
          }
        }
      ],
      "sources" : [
        "SKClient/SKClientTests.swift",
        "SKCore/SKCoreTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "SlackKit",
        "SKCore",
        "SKClient",
        "SKRTMAPI",
        "SKServer"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SlackKit",
      "module_type" : "SwiftTarget",
      "name" : "SlackKit",
      "path" : "SlackKit/Sources",
      "product_memberships" : [
        "SlackKit"
      ],
      "sources" : [
        "ClientConnection.swift",
        "SlackKit.swift"
      ],
      "target_dependencies" : [
        "SKCore",
        "SKClient",
        "SKRTMAPI",
        "SKServer"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SKWebAPI",
      "module_type" : "SwiftTarget",
      "name" : "SKWebAPI",
      "path" : "SKWebAPI/Sources",
      "product_memberships" : [
        "SlackKit",
        "SKRTMAPI",
        "SKServer",
        "SKWebAPI"
      ],
      "sources" : [
        "Endpoint.swift",
        "NetworkInterface.swift",
        "WebAPI.swift"
      ],
      "target_dependencies" : [
        "SKCore"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SKServer",
      "module_type" : "SwiftTarget",
      "name" : "SKServer",
      "path" : "SKServer/Sources",
      "product_dependencies" : [
        "Swifter"
      ],
      "product_memberships" : [
        "SlackKit",
        "SKServer"
      ],
      "sources" : [
        "Conformers/SwifterServer.swift",
        "Middleware/MessageActionMiddleware.swift",
        "Middleware/OAuthMiddleware.swift",
        "Middleware/RedirectMiddleware.swift",
        "Middleware/ResponseMiddleware.swift",
        "Model/AuthorizeResponse.swift",
        "Model/IncomingWebhook.swift",
        "Model/MessageActionRequest.swift",
        "Model/MessageActionRoute.swift",
        "Model/OAuthResponse.swift",
        "Model/RequestRoute.swift",
        "Model/SKResponse.swift",
        "Model/WebhookRequest.swift",
        "SKServer.swift",
        "SlackKitResponder.swift",
        "Titan/Titan/Titan.swift",
        "Titan/Titan404/Titan404.swift",
        "Titan/TitanCORS/TitanCORS.swift",
        "Titan/TitanCore/TitanCore.swift",
        "Titan/TitanCore/TitanError.swift",
        "Titan/TitanCore/TitanHeader.swift",
        "Titan/TitanCore/TitanLogs.swift",
        "Titan/TitanCore/TitanMethod.swift",
        "Titan/TitanCore/TitanRequest.swift",
        "Titan/TitanCore/TitanResponse.swift",
        "Titan/TitanErrorHandling/TitanErrorHandling.swift",
        "Titan/TitanFormURLEncodedBodyParser/TitanFormURLEncodedBodyParser.swift",
        "Titan/TitanHealthz/TitanHealthz.swift",
        "Titan/TitanJSON/TitanJSONRequestBody.swift",
        "Titan/TitanJSON/TitanJSONResponseBody.swift",
        "Titan/TitanQueryString/TitanQueryString.swift",
        "Titan/TitanRouter/InitializerOverloads.swift",
        "Titan/TitanRouter/PathParameterSupport.swift",
        "Titan/TitanRouter/TitanParameterizedRoutes.swift",
        "Titan/TitanRouter/TitanRoutesByMethod.swift",
        "Titan/TitanRouter/TitanRoutingExtension.swift"
      ],
      "target_dependencies" : [
        "SKCore",
        "SKWebAPI"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SKRTMAPI",
      "module_type" : "SwiftTarget",
      "name" : "SKRTMAPI",
      "path" : "SKRTMAPI/Sources",
      "product_dependencies" : [
        "Starscream",
        "WebSocket"
      ],
      "product_memberships" : [
        "SlackKit",
        "SKRTMAPI"
      ],
      "sources" : [
        "Conformers/StarscreamRTM.swift",
        "Conformers/VaporEngineRTM.swift",
        "SKRTMAPI.swift"
      ],
      "target_dependencies" : [
        "SKCore",
        "SKWebAPI"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SKCore",
      "module_type" : "SwiftTarget",
      "name" : "SKCore",
      "path" : "SKCore/Sources",
      "product_memberships" : [
        "SlackKit",
        "SKClient",
        "SKCore",
        "SKRTMAPI",
        "SKServer",
        "SKWebAPI"
      ],
      "sources" : [
        "Action.swift",
        "Attachment.swift",
        "AttachmentField.swift",
        "BlockComposition.swift",
        "BlockElement.swift",
        "BlockLayout.swift",
        "Bot.swift",
        "Channel.swift",
        "Comment.swift",
        "CustomProfile.swift",
        "CustomProfileField.swift",
        "DoNotDisturbStatus.swift",
        "Edited.swift",
        "Event.swift",
        "Extensions.swift",
        "File.swift",
        "History.swift",
        "Item.swift",
        "Message.swift",
        "OAuthConfig.swift",
        "RTMOptions.swift",
        "Reaction.swift",
        "Reply.swift",
        "Scope.swift",
        "SlackError.swift",
        "Team.swift",
        "TeamIcon.swift",
        "Topic.swift",
        "User.swift",
        "UserGroup.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SKClient",
      "module_type" : "SwiftTarget",
      "name" : "SKClient",
      "path" : "SKClient/Sources",
      "product_memberships" : [
        "SlackKit",
        "SKClient"
      ],
      "sources" : [
        "Client.swift"
      ],
      "target_dependencies" : [
        "SKCore"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/40] Write sources
[4/40] Copying PrivacyInfo.xcprivacy
[5/40] Write sources
[24/40] Write swift-version-2F0A5646E1D333AE.txt
[25/40] Compiling CNIOLinux shim.c
[26/40] Compiling CNIOZlib empty.c
[26/40] Compiling CNIOLinux ifaddrs-android.c
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/shims.c:16:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/include/c_nio_openssl.h:17:10: fatal error: 'openssl/conf.h' file not found
   17 | #include <openssl/conf.h>
      |          ^~~~~~~~~~~~~~~~
1 error generated.
[28/40] Compiling CNIOOpenSSL shims.c
[28/40] Compiling CCryptoOpenSSL shim.c
[28/40] Compiling CNIOSHA1 c_nio_sha1.c
[28/40] Compiling CNIOHTTPParser c_nio_http_parser.c
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/helpers.c:14:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/include/c_nio_openssl.h:17:10: fatal error: 'openssl/conf.h' file not found
   17 | #include <openssl/conf.h>
      |          ^~~~~~~~~~~~~~~~
[28/40] Compiling CNIOOpenSSL helpers.c
[28/40] Compiling c-atomics.c
[28/40] Compiling CNIODarwin shim.c
warning: 'swift-nio-ssl-support': ignoring declared target(s) 'swift-nio-ssl-support' in the system package
warning: 'swift-nio-zlib-support': ignoring declared target(s) 'swift-nio-zlib-support' in the system package
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: couldn't find pc file for zlib
warning: you may be able to install openssl using your system-packager:
    brew install libressl
warning: couldn't find pc file for zlib
warning: you may be able to install openssl using your system-packager:
    brew install libressl
warning: 'starscream': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /Users/admin/builder/spi-builder-workspace/.build/checkouts/Starscream/Sources/Info.plist
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/12] Write sources
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/shims.c:16:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/include/c_nio_openssl.h:17:10: fatal error: 'openssl/conf.h' file not found
   17 | #include <openssl/conf.h>
      |          ^~~~~~~~~~~~~~~~
1 error generated.
[2/13] Compiling CNIOOpenSSL shims.c
[2/13] Compiling CBcrypt blf.c
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/helpers.c:14:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/include/c_nio_openssl.h:17:10: fatal error: 'openssl/conf.h' file not found
   17 | #include <openssl/conf.h>
      |          ^~~~~~~~~~~~~~~~
[2/13] Compiling CNIOOpenSSL helpers.c
[2/13] Compiling CNIOSHA1 c_nio_sha1.c
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/crypto/Sources/CCryptoOpenSSL/shim.c:1:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/crypto/Sources/CCryptoOpenSSL/include/c_crypto_openssl.h:4:10: fatal error: 'openssl/conf.h' file not found
    4 | #include <openssl/conf.h>
      |          ^~~~~~~~~~~~~~~~
[2/13] Compiling CCryptoOpenSSL shim.c
[2/13] Compiling CBase32 base32.c
[2/13] Compiling c-atomics.c
[2/13] Compiling CNIOHTTPParser c_nio_http_parser.c
[2/13] Compiling CNIODarwin shim.c
[2/13] Compiling CBcrypt bcrypt.c
warning: 'swift-nio-ssl-support': ignoring declared target(s) 'swift-nio-ssl-support' in the system package
warning: 'swift-nio-zlib-support': ignoring declared target(s) 'swift-nio-zlib-support' in the system package
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: couldn't find pc file for zlib
warning: you may be able to install openssl using your system-packager:
    brew install libressl
warning: couldn't find pc file for zlib
warning: you may be able to install openssl using your system-packager:
    brew install libressl
warning: 'starscream': found 1 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
    /Users/admin/builder/spi-builder-workspace/.build/checkouts/Starscream/Sources/Info.plist
BUILD FAILURE 6.1 macosSpm