I use BuddyBuild for a swift project with Xcode 8.0 and with Carthage 0.18. Although, in logs I can see that all frameworks are cloning, checking out and building, I receive this one:
module compiled with Swift 3.0.1 cannot be imported in Swift 3.0: /tmp/sandbox/workspace/Carthage/Build/iOS/RealmSwift.framework/Modules/RealmSwift.swiftmodule/x86_64.swiftmodule
This is the entry in Cartfile for Realm:
github "realm/realm-cocoa"
Locally, everything builds, but with other configurations: Xcode 8.1 and Carthage 0.18
This Module compiled with swift 3.0 cannot be imported in Swift 3.0.1 did not help me much, because of BuddyBuild.
EDIT I can see that in logs:
Downloading realm-cocoa.framework binary at "v2.1.0"
after that, no building for realm.