SwiftLint 0.63.0 crashes on macOS 26 #6425
Description
New Issue Checklist
- I've Updated SwiftLint to the latest version.
- I've searched for existing GitHub issues.
Bug Description
After updating SwiftLint from 0.62.2 to 0.63.0 it crashes on every start on macOS 26. I also tried removing and reinstalling SwiftLint, same result.
$ swiftlint lint Output (zsh):
Linting Swift files in current working directory
zsh: bus error swiftlintOutput (bash):
Linting Swift files in current working directory
Bus error: 10Crash Report
-------------------------------------
Translated Report (Full Report Below)
-------------------------------------
Process: swiftlint [15643]
Path: /opt/homebrew/*/swiftlint
Identifier: swiftlint
Version: ???
Code Type: ARM-64 (Native)
Role: Unspecified
Parent Process: zsh [97390]
Coalition: dev.warp.Warp-Stable [11420]
Responsible Process: stable [97313]
User ID: 501
Date/Time: 2026-01-09 11:43:34.0346 +0100
Launch Time: 2026-01-09 11:43:33.0241 +0100
Hardware Model: Mac16,8
OS Version: macOS 26.2 (25C56)
Release Type: User
Crash Reporter Key: C36BB5B8-7B0F-1048-64C6-BC6666227B06
Incident Identifier: D6424931-47C1-4329-8FA9-84BD374503A1
Sleep/Wake UUID: 37ED04FF-1939-4EFA-BC6C-64652BB1F9AC
Time Awake Since Boot: 94000 seconds
Time Since Wake: 83809 seconds
System Integrity Protection: enabled
Triggered by Thread: 10, Dispatch Queue: com.apple.root.default-qos
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Subtype: KERN_PROTECTION_FAILURE at 0x000000016bdcbd3c
Exception Message: Thread stack size exceeded due to excessive recursion
Exception Codes: 0x0000000000000002, 0x000000016bdcbd3c
Thread 10 Crashed:: Dispatch queue: com.apple.root.default-qos
0 CoreFoundation 0x19741b628 __CFStringCreateImmutableFunnel3 + 116
1 CoreServicesInternal 0x19b694458 SetNameAndHiddenFlagsFromCString(__CFAllocator const*, char const*, long, _FileAttributes*) + 76
2 CoreServicesInternal 0x19b6bdc80 parseAttributeBuffer(__CFAllocator const*, unsigned char const*, unsigned char, attrlist const*, void const*, void**, _FileAttributes*, unsigned int*, unsigned char) + 396
3 CoreServicesInternal 0x19b693f68 corePropertyProviderPrepareValues(__CFURL const*, __FileCache*, __CFString const* const*, void const**, long, void const*, __CFError**) + 1424
4 CoreServicesInternal 0x19b693964 prepareValuesForBitmap(__CFURL const*, __FileCache*, _FilePropertyBitmap*, __CFError**) + 460
5 CoreServicesInternal 0x19b69bf44 _FSURLCopyResourcePropertiesForKeysInternal(__CFURL const*, __CFArray const*, void*, __CFError**, unsigned char) + 1140
6 CoreFoundation 0x197479b14 CFURLCopyResourcePropertiesForKeys + 100
7 CoreFoundation 0x1975badcc -[NSURL resourceValuesForKeys:error:] + 96
8 Foundation 0x199617604 +[NSFileAttributes _populateCatInfo:forURL:statInfo:error:] + 144
9 Foundation 0x199617844 +[NSFileAttributes _attributesAtPath:partialReturn:filterResourceFork:error:] + 288
10 Foundation 0x19961d3a8 -[NSFileManager enumeratorAtPath:] + 36
11 swiftlint 0x104abf6f4 NSFileManager.collectFiles(atPath:excluder:) + 256
12 swiftlint 0x104abfc88 closure #1 in NSFileManager.collectFiles(atPath:excluder:) + 128
13 swiftlint 0x104a1db60 partial apply for thunk for @callee_guaranteed @Sendable (@in_guaranteed A) -> (@owned [A1]) + 24
14 swiftlint 0x104a1ce3c closure #1 in closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 192
15 libswiftDispatch.dylib 0x1b0ef6008 partial apply for thunk for @callee_guaranteed (@unowned Int) -> () + 28
16 libswiftDispatch.dylib 0x1b0ef6034 thunk for @escaping @callee_guaranteed (@unowned Int) -> () + 32
17 libdispatch.dylib 0x197236aec _dispatch_client_callout2 + 16
18 libdispatch.dylib 0x1972319a0 _dispatch_apply_serial + 164
19 libdispatch.dylib 0x197236ad4 _dispatch_client_callout + 16
-------- RECURSION LEVEL 252
20 libdispatch.dylib 0x197223550 _dispatch_sync_function_invoke + 52
21 libdispatch.dylib 0x197231004 _dispatch_apply_with_attr_f + 1424
22 libdispatch.dylib 0x19723111c dispatch_apply + 96
23 libswiftDispatch.dylib 0x1b0ef60c0 _swift_dispatch_apply_current + 128
24 libswiftDispatch.dylib 0x1b0ef5f9c static OS_dispatch_queue.concurrentPerform(iterations:execute:) + 196
25 swiftlint 0x104a1cd54 closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 136
26 swiftlint 0x104a1dd4c partial apply for closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 24
27 swiftlint 0x104a1d5d8 _ArrayBuffer.withUnsafeBufferPointer<A, B>(_:) + 260
28 swiftlint 0x104a1ced8 Array.withUnsafeBufferPointer<A, B>(_:) + 76
29 swiftlint 0x104a1cc50 closure #1 in Array.parallelMap<A>(transform:) + 164
30 swiftlint 0x104a1c7c0 Array.parallelMap<A>(transform:) + 284
31 swiftlint 0x104a1ca10 Array.parallelFlatMap<A>(transform:) + 88
32 swiftlint 0x104abfbb0 NSFileManager.collectFiles(atPath:excluder:) + 1468
33 swiftlint 0x104abfc88 closure #1 in NSFileManager.collectFiles(atPath:excluder:) + 128
34 swiftlint 0x104a1db60 partial apply for thunk for @callee_guaranteed @Sendable (@in_guaranteed A) -> (@owned [A1]) + 24
35 swiftlint 0x104a1ce3c closure #1 in closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 192
36 libswiftDispatch.dylib 0x1b0ef6008 partial apply for thunk for @callee_guaranteed (@unowned Int) -> () + 28
37 libswiftDispatch.dylib 0x1b0ef6034 thunk for @escaping @callee_guaranteed (@unowned Int) -> () + 32
38 libdispatch.dylib 0x197236aec _dispatch_client_callout2 + 16
39 libdispatch.dylib 0x1972319a0 _dispatch_apply_serial + 164
40 libdispatch.dylib 0x197236ad4 _dispatch_client_callout + 16
-------- RECURSION LEVEL 251
41 libdispatch.dylib 0x197223550 _dispatch_sync_function_invoke + 52
42 libdispatch.dylib 0x197231004 _dispatch_apply_with_attr_f + 1424
43 libdispatch.dylib 0x19723111c dispatch_apply + 96
44 libswiftDispatch.dylib 0x1b0ef60c0 _swift_dispatch_apply_current + 128
45 libswiftDispatch.dylib 0x1b0ef5f9c static OS_dispatch_queue.concurrentPerform(iterations:execute:) + 196
46 swiftlint 0x104a1cd54 closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 136
47 swiftlint 0x104a1dd4c partial apply for closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 24
48 swiftlint 0x104a1d5d8 _ArrayBuffer.withUnsafeBufferPointer<A, B>(_:) + 260
49 swiftlint 0x104a1ced8 Array.withUnsafeBufferPointer<A, B>(_:) + 76
50 swiftlint 0x104a1cc50 closure #1 in Array.parallelMap<A>(transform:) + 164
51 swiftlint 0x104a1c7c0 Array.parallelMap<A>(transform:) + 284
52 swiftlint 0x104a1ca10 Array.parallelFlatMap<A>(transform:) + 88
53 swiftlint 0x104abfbb0 NSFileManager.collectFiles(atPath:excluder:) + 1468
54 swiftlint 0x104abfc88 closure #1 in NSFileManager.collectFiles(atPath:excluder:) + 128
55 swiftlint 0x104a1db60 partial apply for thunk for @callee_guaranteed @Sendable (@in_guaranteed A) -> (@owned [A1]) + 24
56 swiftlint 0x104a1ce3c closure #1 in closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 192
57 libswiftDispatch.dylib 0x1b0ef6008 partial apply for thunk for @callee_guaranteed (@unowned Int) -> () + 28
58 libswiftDispatch.dylib 0x1b0ef6034 thunk for @escaping @callee_guaranteed (@unowned Int) -> () + 32
59 libdispatch.dylib 0x197236aec _dispatch_client_callout2 + 16
60 libdispatch.dylib 0x1972319a0 _dispatch_apply_serial + 164
61 libdispatch.dylib 0x197236ad4 _dispatch_client_callout + 16
-------- RECURSION LEVEL 250
--------
-------- ELIDED 246 LEVELS OF RECURSION THROUGH 0x197236ad4 _dispatch_client_callout + 16
--------
5228 libdispatch.dylib 0x197223550 _dispatch_sync_function_invoke + 52
5229 libdispatch.dylib 0x197231004 _dispatch_apply_with_attr_f + 1424
5230 libdispatch.dylib 0x19723111c dispatch_apply + 96
5231 libswiftDispatch.dylib 0x1b0ef60c0 _swift_dispatch_apply_current + 128
5232 libswiftDispatch.dylib 0x1b0ef5f9c static OS_dispatch_queue.concurrentPerform(iterations:execute:) + 196
5233 swiftlint 0x104a1cd54 closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 136
5234 swiftlint 0x104a1dd4c partial apply for closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 24
5235 swiftlint 0x104a1d5d8 _ArrayBuffer.withUnsafeBufferPointer<A, B>(_:) + 260
5236 swiftlint 0x104a1ced8 Array.withUnsafeBufferPointer<A, B>(_:) + 76
5237 swiftlint 0x104a1cc50 closure #1 in Array.parallelMap<A>(transform:) + 164
5238 swiftlint 0x104a1c7c0 Array.parallelMap<A>(transform:) + 284
5239 swiftlint 0x104a1ca10 Array.parallelFlatMap<A>(transform:) + 88
5240 swiftlint 0x104abfbb0 NSFileManager.collectFiles(atPath:excluder:) + 1468
5241 swiftlint 0x104abfc88 closure #1 in NSFileManager.collectFiles(atPath:excluder:) + 128
5242 swiftlint 0x104a1db60 partial apply for thunk for @callee_guaranteed @Sendable (@in_guaranteed A) -> (@owned [A1]) + 24
5243 swiftlint 0x104a1ce3c closure #1 in closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 192
5244 libswiftDispatch.dylib 0x1b0ef6008 partial apply for thunk for @callee_guaranteed (@unowned Int) -> () + 28
5245 libswiftDispatch.dylib 0x1b0ef6034 thunk for @escaping @callee_guaranteed (@unowned Int) -> () + 32
5246 libdispatch.dylib 0x197236aec _dispatch_client_callout2 + 16
5247 libdispatch.dylib 0x1972319a0 _dispatch_apply_serial + 164
5248 libdispatch.dylib 0x197236ad4 _dispatch_client_callout + 16
-------- RECURSION LEVEL 3
5249 libdispatch.dylib 0x197223550 _dispatch_sync_function_invoke + 52
5250 libdispatch.dylib 0x197231004 _dispatch_apply_with_attr_f + 1424
5251 libdispatch.dylib 0x19723111c dispatch_apply + 96
5252 libswiftDispatch.dylib 0x1b0ef60c0 _swift_dispatch_apply_current + 128
5253 libswiftDispatch.dylib 0x1b0ef5f9c static OS_dispatch_queue.concurrentPerform(iterations:execute:) + 196
5254 swiftlint 0x104a1cd54 closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 136
5255 swiftlint 0x104a1dd4c partial apply for closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 24
5256 swiftlint 0x104a1d5d8 _ArrayBuffer.withUnsafeBufferPointer<A, B>(_:) + 260
5257 swiftlint 0x104a1ced8 Array.withUnsafeBufferPointer<A, B>(_:) + 76
5258 swiftlint 0x104a1cc50 closure #1 in Array.parallelMap<A>(transform:) + 164
5259 swiftlint 0x104a1c7c0 Array.parallelMap<A>(transform:) + 284
5260 swiftlint 0x104a1ca10 Array.parallelFlatMap<A>(transform:) + 88
5261 swiftlint 0x104abfbb0 NSFileManager.collectFiles(atPath:excluder:) + 1468
5262 swiftlint 0x104abfc88 closure #1 in NSFileManager.collectFiles(atPath:excluder:) + 128
5263 swiftlint 0x104a1db60 partial apply for thunk for @callee_guaranteed @Sendable (@in_guaranteed A) -> (@owned [A1]) + 24
5264 swiftlint 0x104a1ce3c closure #1 in closure #1 in closure #1 in Array.parallelMap<A>(transform:) + 192
5265 libswiftDispatch.dylib 0x1b0ef6008 partial apply for thunk for @callee_guaranteed (@unowned Int) -> () + 28
5266 libswiftDispatch.dylib 0x1b0ef6034 thunk for @escaping @callee_guaranteed (@unowned Int) -> () + 32
5267 libdispatch.dylib 0x197236aec _dispatch_client_callout2 + 16
5268 libdispatch.dylib 0x1972317f8 _dispatch_apply_invoke3 + 336
5269 libdispatch.dylib 0x197236ad4 _dispatch_client_callout + 16
-------- RECURSION LEVEL 2
5270 libdispatch.dylib 0x19721fa60 _dispatch_once_callout + 32
5271 libdispatch.dylib 0x197230938 _dispatch_apply_invoke + 252
5272 libdispatch.dylib 0x197236ad4 _dispatch_client_callout + 16
-------- RECURSION LEVEL 1
5273 libdispatch.dylib 0x1972539dc <deduplicated_symbol> + 32
5274 libdispatch.dylib 0x19722f13c _dispatch_root_queue_drain + 736
5275 libdispatch.dylib 0x19722f784 _dispatch_worker_thread2 + 180
5276 libsystem_pthread.dylib 0x1973d5e10 _pthread_wqthread + 232
5277 libsystem_pthread.dylib 0x1973d4b9c start_wqthread + 8
Environment
- SwiftLint version 0.63.0
- Xcode version Xcode 26.2 Build version 17C52
- macOS 26.2
- Installation method used: Homebrew
- Configuration file:
disabled_rules:
- identifier_name
- line_length
- unused_closure_parameter
- multiple_closures_with_trailing_closure
- function_name_whitespace
- implicit_getter
- weak_delegate
- redundant_string_enum_value
- todo
- inclusive_language
- comment_spacing
- orphaned_doc_comment
- switch_case_alignment
- unneeded_override
- non_optional_string_data_conversion
- static_over_final_class
opt_in_rules:
- implicitly_unwrapped_optional
- force_unwrapping
- conditional_returns_on_newline # Disallows onelines such as `guard let this = self else { return }`
excluded:
- Pods
- vendor
- Unused
- DerivedData
- Build
- Carthage
- wtrResources/Sources/Assets
- wtrREST/Generated
cyclomatic_complexity:
warning: 24
error: 36
large_tuple:
warning: 2
error: 10
shorthand_operator:
severity: warning
type_name:
max_length:
warning: 60
function_body_length:
warning: 80
error: 120
file_length:
warning: 450
error: 600
type_body_length:
warning: 320
error: 500