"${PODS_ROOT}/SwiftLint/swiftlint" causes "Command PhaseScriptExecution failed with a nonzero exit code" with Xcode 10

Question

Updating from Xcode 10.0 beta 2 to Xcode 10.0 beta 3 I now get this error at build time for an iOS project:

sourcekit: [1:connection-event-handler:10499: 0.0000] Connection interruptsourcekit: [1:updateSemanticEditorDelay:10499: 0.0007] disabling semantic editor for 10 secondssourcekit: [1:pingService:10499: 0.0007] pinging servicesourcekitten: connection to SourceKitService restored!
Connection interrupted
Never call this for file that sourcekitd fails.: file File+Cache.swift, line 127
/Users/Coeur/Library/Developer/Xcode/DerivedData/My-App-eloayqptodupvfhbyegtkncnhcpu/Build/Intermediates.noindex/My-App.build/UAT-iphonesimulator/My-App-Debug.build/Script-379156A71D62F5C100574D04.sh: line 2: 34382 Abort trap: 6 "${PODS_ROOT}/SwiftLint/swiftlint"
Command PhaseScriptExecution failed with a nonzero exit code

Swift 4.1
CocoaPods 1.5.3
SwiftLint 0.26.0

Answer 1

Its because of Keychain Access.

• Open Keychain Access
• Right Click Login Tab
• Lock Keychain Login
• Right Click Login Tab again
• Unlock Keychain Login

and problem solved :)

Answer 2

It seems to be an issue with the SwiftLint 0.26.0 script when using Xcode 10.0 beta 3 or newer.

Cause

It seems related to SwiftLint #2276, itself related to SourceKitten 0.21.0, fixed in SourceKitten 0.21.1 and SwiftLint Master.

Solution

Update to SwiftLint 0.27.0 or newer:

pod 'SwiftLint', '~> 0.27' 

(and run pod update SwiftLint)