Hang on El Capitan with Xcode 7 using Faux Pas 1.5

Attempting to run Faux Pas (trial) on El Capitan (GM) and Xcode 7 (GM), I see hangs... I see it start analyzing 8 files (one per core in my rMBP?), then hang for 5-10 minutes, then complain about not being able to build Foundation and UIKit modules, then going on to the next file(s).

Sample output looks like:

Determining build settings for 1 targets and 2 build configurations
Checking project: ....
          target: ....
   configuration: Release
         ruleset: 83 Rules tagged [Recommended]: UndetachedDelegate, InvalidStringsFile, StringsFileEncoding, UIKitKVO, UnnecessaryNullCheck, RetinaImagesResolution, AssertionSideEffects, SuspiciousResources, NullCoalescingOp, LoadMethodWithoutAutoreleasePool, UnknownResourceCodeReference, StringsdictWithoutStrings, InitializeSuperInvocation, CompilerWarnings, HardcodedUIString, UnsupportedWeakReference, HardcodedSelfClass, MacroBasedIncludeGuard, RestrictedDirectMethodCall, RecommendedVCSIgnores, RetainingImmutableProperty, MissingAPIUsageDescription, XIBRuntimeAttributeMismatch, ThreadUnsafeInstanceCaching, MissingTranslation, RestrictedMethodOverride, MissingDeviceTypeResource, OldVerboseObjCSyntax, IsEqualAndHash, FileRefOutsideVCS, LiteralStringKeyPath, BasicProjectSettings, DuplicateTranslation, StrongDelegate, ConstructorReturnType, SetterInvocationInInitOrDealloc, ArgumentModification, FastEnumElementOutside, UnusedErrorValue, CopyingMutableProperty, ImplicitBundleId, UnnecessaryNibMethod, OrderedPointerToZeroComparison, PrefixHeaderIncludeSuggestion, ReleaseBuildCompilerArgs, XcconfigOverwrites, BuildSettingSelfReference, FixedFormatDateFormatter, BuildSettingPlacement, TerminatingApp, AbsPathInBuildSetting, PrivateCategory, FileRefWithAbsPath, MissingImageResolutionVariant, TranslationPunctuation, WeakReferenceToTopLevelXIBObject, UnprefixedClass, InitializeMethodCategoryOverride, SuspiciousDateTimeFormat, ReleaseBuildConfig, AssigningDelegate, UnknownResourceXIBReference, GlobalAndLocalizedResource, UnknownResourceModifier, Swizzling, ZeroAssignmentToPointer, DiscardedOpaqueNotificationObserver, DylibInstallName, TranslationFormatMismatch, SuspiciousMissingResources, ErrorConditionCheck, RedundantInclude, ReservedPrefix, NSLogUsed, UnprefixedCategoryMethod, UncommentedLocalizedString, UnidiomaticAccessorNaming, DuplicateResource, ViewControllerInitWithNibName, CategoryMethodConflict, BlockAPIRetainCycle, FileRefIgnoredInVCS, MissingNotificationCenterDetachment

Trial Version: Delaying operation for 15 more seconds…
Trial Version: Delaying operation for 14 more seconds…
Trial Version: Delaying operation for 13 more seconds…
Trial Version: Delaying operation for 12 more seconds…
Trial Version: Delaying operation for 11 more seconds…
Trial Version: Delaying operation for 10 more seconds…
Trial Version: Delaying operation for 9 more seconds…
Trial Version: Delaying operation for 8 more seconds…
Trial Version: Delaying operation for 7 more seconds…
Trial Version: Delaying operation for 6 more seconds…
Trial Version: Delaying operation for 5 more seconds…
Trial Version: Delaying operation for 4 more seconds…
Trial Version: Delaying operation for 3 more seconds…
Trial Version: Delaying operation for 2 more seconds…
Trial Version: Delaying operation for 1 more seconds…
Initialization: Determining VCS state...
Initialization: Resolving build settings...
Rule InvalidStringsFile will not be applied: “Applies to localized projects.”
Rule LoadMethodWithoutAutoreleasePool will not be applied: “Applies to projects targeting an OS prior to iOS 6 or Mac OS 10.8.”
Rule StringsdictWithoutStrings will not be applied: “Applies to localized projects.”
Rule HardcodedUIString will not be applied: “Applies to localized projects.”
Rule UnsupportedWeakReference will not be applied: “Applies to OS X targets.”
Rule MissingTranslation will not be applied: “Applies to localized projects.”
Rule DuplicateTranslation will not be applied: “Applies to localized projects.”
Rule PrefixHeaderIncludeSuggestion will not be applied: “Applies to projects that use a prefix header, and have at least 10 source code files.”
Rule TranslationPunctuation will not be applied: “Applies to localized projects.”
Rule DylibInstallName will not be applied: “Applies to OS X targets.”
Rule TranslationFormatMismatch will not be applied: “Applies to localized projects.”
Rule RedundantInclude will not be applied: “Applies to projects using a prefix header.”
Rule UncommentedLocalizedString will not be applied: “Applies to localized projects.”
Initialization: Reading cached build steps
Initialization: Processing build steps
Initialization: Interpreting 2 XIB files...
Applying rules before checking code
Checking file #0/19 (19 remaining): /..../..../.....m

Checking file #1/19 (19 remaining): /..../..../....Client.m

Checking file #4/19 (19 remaining): /..../..../....Layer.m

Checking file #2/19 (19 remaining): /..../..../....Client.m

Checking file #3/19 (19 remaining): /..../AppDelegate.m

Checking file #7/19 (19 remaining): /..../..../....TableViewController.m

Checking file #6/19 (19 remaining): /..../..../....ViewController.m

Checking file #5/19 (19 remaining): /..../..../.....m

hang for 5-10 minutes here before...:

COMPILER ERROR when parsing file /.../.../....m: ..../..../..../.....h:9:9: fatal error: timed out waiting to acquire lock file for module 'Foundation'

Checking file #8/19 (18 remaining): /..../..../....PageController.m

COMPILER ERROR when parsing file /..../..../....Client.m: ..../..../AFNetworking/AFNetworking/AFHTTPSessionManager.h:22:9: fatal error: timed out waiting to acquire lock file for module 'Foundation'

Checking file #9/19 (17 remaining): /..../Supporting Files/main.m

COMPILER ERROR when parsing file /..../..../....Layer.m: ..../..../..../..../....Layer.h:9:9: fatal error: could not build module 'UIKit'

Checking file #10/19 (16 remaining): /..../..../....View.m

COMPILER ERROR when parsing file /..../AppDelegate.m: ..../..../..../AppDelegate.h:9:9: fatal error: could not build module 'UIKit'

Checking file #11/19 (15 remaining): /..../..../....View.m

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