disable span trait

Author: madsodgaard

Package.swift

@@ -210,7 +210,7 @@ let package = Package(
     .package(url: "https://github.com/apple/swift-system", from: "1.4.0"),
     .package(url: "https://github.com/apple/swift-log", from: "1.2.0"),
     .package(url: "https://github.com/apple/swift-collections", .upToNextMinor(from: "1.3.0")), // primarily for ordered collections
-    .package(url: "https://github.com/swiftlang/swift-subprocess.git", from: "0.2.1"),
+    .package(url: "https://github.com/swiftlang/swift-subprocess.git", from: "0.2.1", traits: ["SubprocessFoundation"]),
 
     // Benchmarking
     .package(url: "https://github.com/ordo-one/package-benchmark", .upToNextMajor(from: "1.4.0")),