Swift Package plugin: MintKit compilation errors

[blake-matson-irl]

I'm writing a Swift Package plugin that depends on MintKit, but my project fails to build due to compilation errors from Mint.swift.

Xcode: Version 13.4.1 (13F100)
Swift tools: 5.6

Package.swift

// swift-tools-version: 5.6

import PackageDescription

let package = Package(
    name: "MyAppPackage",
    platforms: [
        .iOS(.v13),
    ],
    products: [
        .library(name: "MyAppPackage", targets: ["MyAppPackage"]),
        .plugin(name: "MyPlugin", targets: ["MyPlugin"])
    ],
    dependencies: [
        .package(url: "https://github.com/yonaskolb/Mint.git", from: "0.17.1"),
        // other dependencies omitted
    ],
    targets: [
        .target(
            name: "MyAppPackage",
            dependencies: [
                // omitted
            ],
            plugins: [.plugin(name: "MyPlugin")]
        ),
        .plugin(
            name: "MyPlugin",
            capability: .buildTool(),
            dependencies: [.product(name: "MintKit", package: "Mint")]
        ),
    ])

Error logs:

CompileSwift normal arm64 $DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift (in target 'MintKit' from project 'Mint')
    cd $DERIVED_DATA/SourcePackages/checkouts/Mint
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c $DERIVED_DATA/Index/DataStore -index-system-modules

$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:163:37: error: generic parameter 'Success' could not be inferred
                let tagOutput = try Task.capture(bash: "git ls-remote --tags --refs \(package.gitPath)")
                                    ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:163:37: error: generic parameter 'Failure' could not be inferred
                let tagOutput = try Task.capture(bash: "git ls-remote --tags --refs \(package.gitPath)")
                                    ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:163:37: note: explicitly specify the generic arguments to fix this issue
                let tagOutput = try Task.capture(bash: "git ls-remote --tags --refs \(package.gitPath)")
                                    ^
                                        <<#Success: Sendable#>, <#Failure: Error#>>
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:163:42: error: type 'Task<Success, Failure>' has no member 'capture'
                let tagOutput = try Task.capture(bash: "git ls-remote --tags --refs \(package.gitPath)")
                                    ~~~~ ^~~~~~~
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:171:67: error: type of expression is ambiguous without more context
                    if let latestVersion = versions.keys.sorted().last, let tag = versions[latestVersion] {
                                           ~~~~~~~~~~~~~~~~~~~~~~~^~~~
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:171:91: error: type of expression is ambiguous without more context
                    if let latestVersion = versions.keys.sorted().last, let tag = versions[latestVersion] {
                                                                                  ~~~~~~~~^~~~~~~~~~~~~~~
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:216:17: error: generic parameter 'Success' could not be inferred
            try Task.execvp(packagePath.executablePath.string, arguments: arguments, env: env)
                ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:216:17: error: generic parameter 'Failure' could not be inferred
            try Task.execvp(packagePath.executablePath.string, arguments: arguments, env: env)
                ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:216:17: note: explicitly specify the generic arguments to fix this issue
            try Task.execvp(packagePath.executablePath.string, arguments: arguments, env: env)
                ^
                    <<#Success: Sendable#>, <#Failure: Error#>>
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:216:22: error: type 'Task<Success, Failure>' has no member 'execvp'
            try Task.execvp(packagePath.executablePath.string, arguments: arguments, env: env)
                ~~~~ ^~~~~~
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:218:27: error: no exact matches in call to initializer 
            let runTask = Task(executable: packagePath.executablePath.string, arguments: arguments)
                          ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:218:27: note: found candidate with type '(Optional<TaskPriority>, __owned @escaping @Sendable () async -> _) -> Task<_, Never>'
            let runTask = Task(executable: packagePath.executablePath.string, arguments: arguments)
                          ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:218:27: note: found candidate with type '(Optional<TaskPriority>, __owned @escaping @Sendable () async throws -> _) -> Task<_, Error>'
            let runTask = Task(executable: packagePath.executablePath.string, arguments: arguments)
                          ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:218:27: error: generic parameter 'Success' could not be inferred
            let runTask = Task(executable: packagePath.executablePath.string, arguments: arguments)
                          ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:218:27: note: explicitly specify the generic arguments to fix this issue
            let runTask = Task(executable: packagePath.executablePath.string, arguments: arguments)
                          ^
                              <<#Success: Sendable#>, Never>
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:363:17: error: generic parameter 'Success' could not be inferred
            try Task.run("cp", executablePath.string, destinationPackagePath.executablePath.string)
                ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:363:17: error: generic parameter 'Failure' could not be inferred
            try Task.run("cp", executablePath.string, destinationPackagePath.executablePath.string)
                ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:363:17: note: explicitly specify the generic arguments to fix this issue
            try Task.run("cp", executablePath.string, destinationPackagePath.executablePath.string)
                ^
                    <<#Success: Sendable#>, <#Failure: Error#>>
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:363:22: error: type 'Task<Success, Failure>' has no member 'run'
            try Task.run("cp", executablePath.string, destinationPackagePath.executablePath.string)
                ~~~~ ^~~
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:378:25: error: generic parameter 'Success' could not be inferred
                    try Task.run(bash: "cp -R \"\(resourcePath)\" \"\(dest)\"")
                        ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:378:25: error: generic parameter 'Failure' could not be inferred
                    try Task.run(bash: "cp -R \"\(resourcePath)\" \"\(dest)\"")
                        ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:378:25: note: explicitly specify the generic arguments to fix this issue
                    try Task.run(bash: "cp -R \"\(resourcePath)\" \"\(dest)\"")
                        ^
                            <<#Success: Sendable#>, <#Failure: Error#>>
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:378:30: error: type 'Task<Success, Failure>' has no member 'run'
                    try Task.run(bash: "cp -R \"\(resourcePath)\" \"\(dest)\"")
                        ~~~~ ^~~
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:414:21: error: generic parameter 'Success' could not be inferred
                try Task.run(bash: command, directory: directory.string)
                    ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:414:21: error: generic parameter 'Failure' could not be inferred
                try Task.run(bash: command, directory: directory.string)
                    ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:414:21: note: explicitly specify the generic arguments to fix this issue
                try Task.run(bash: command, directory: directory.string)
                    ^
                        <<#Success: Sendable#>, <#Failure: Error#>>
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:414:26: error: type 'Task<Success, Failure>' has no member 'run'
                try Task.run(bash: command, directory: directory.string)
                    ~~~~ ^~~
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:416:25: error: generic parameter 'Success' could not be inferred
                _ = try Task.capture(bash: command, directory: directory.string)
                        ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:416:25: error: generic parameter 'Failure' could not be inferred
                _ = try Task.capture(bash: command, directory: directory.string)
                        ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:416:25: note: explicitly specify the generic arguments to fix this issue
                _ = try Task.capture(bash: command, directory: directory.string)
                        ^
                            <<#Success: Sendable#>, <#Failure: Error#>>
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:416:30: error: type 'Task<Success, Failure>' has no member 'capture'
                _ = try Task.capture(bash: command, directory: directory.string)
                        ~~~~ ^~~~~~~
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:459:17: error: generic parameter 'Success' could not be inferred
            try Task.run(bash: "ln -s \"\(packagePath.executablePath.string)\" \"\(installPath.string)\"")
                ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:459:17: error: generic parameter 'Failure' could not be inferred
            try Task.run(bash: "ln -s \"\(packagePath.executablePath.string)\" \"\(installPath.string)\"")
                ^
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:459:17: note: explicitly specify the generic arguments to fix this issue
            try Task.run(bash: "ln -s \"\(packagePath.executablePath.string)\" \"\(installPath.string)\"")
                ^
                    <<#Success: Sendable#>, <#Failure: Error#>>
$DERIVED_DATA/SourcePackages/checkouts/Mint/Sources/MintKit/Mint.swift:459:22: error: type 'Task<Success, Failure>' has no member 'run'
            try Task.run(bash: "ln -s \"\(packagePath.executablePath.string)\" \"\(installPath.string)\"")
                ~~~~ ^~~

[yonaskolb]

It looks like SwiftCLI is a newer version in your package, as Package.resolved isn't used. If you add this it should fix the issue:

.package(url: "https://github.com/jakeheis/SwiftCLI.git", from: "6.0.3"),

[yonaskolb]

Although there isn't a newer version...