Firestore -> grpc crash after upgrading to iOS 18 SDK / XCode 16

[xaphod]

Description

This started getting reported via our crashlytics reporting after we moved to XCode 16 / iOS 18 SDK. The build in question uses iOS 18.1 SDK. It uses Firestore, which brings in grpc, which appears to be having this crash.

          Crashed: Thread
0  grpc                           0x241208 on_read(void*, absl::lts_20240116::Status) + 137 (memory_allocator.h:137)
1  grpc                           0x104ccc grpc_core::ExecCtx::Flush() + 814 (status.h:814)
2  grpc                           0x162d8 grpc_core::ExecCtx::~ExecCtx() + 133 (exec_ctx.h:133)
3  grpc                           0xefc28 grpc_event_engine::experimental::(anonymous namespace)::EventEngineEndpointWrapper::FinishPendingRead(absl::lts_20240116::Status) + 304 (exec_ctx.h:304)
4  grpc                           0xeffac void absl::lts_20240116::internal_any_invocable::LocalInvoker<false, void, grpc_event_engine::experimental::(anonymous namespace)::EventEngineEndpointWrapper::Read(grpc_closure*, grpc_slice_buffer*, grpc_event_engine::experimental::EventEngine::Endpoint::ReadArgs const*)::'lambda'(absl::lts_20240116::Status)&, absl::lts_20240116::Status>(absl::lts_20240116::internal_any_invocable::TypeErasedState*, absl::lts_20240116::internal_any_invocable::ForwardedParameter<absl::lts_20240116::Status>::type) + 814 (status.h:814)
5  grpc                           0x52e80 grpc_event_engine::experimental::CFStreamEndpointImpl::DoRead(absl::lts_20240116::AnyInvocable<void (absl::lts_20240116::Status)>, grpc_event_engine::experimental::SliceBuffer*) + 814 (status.h:814)
6  grpc                           0x53e30 void absl::lts_20240116::internal_any_invocable::RemoteInvoker<false, void, grpc_event_engine::experimental::CFStreamEndpointImpl::Read(absl::lts_20240116::AnyInvocable<void (absl::lts_20240116::Status)>, grpc_event_engine::experimental::SliceBuffer*, grpc_event_engine::experimental::EventEngine::Endpoint::ReadArgs const*)::$_0&, absl::lts_20240116::Status>(absl::lts_20240116::internal_any_invocable::TypeErasedState*, absl::lts_20240116::internal_any_invocable::ForwardedParameter<absl::lts_20240116::Status>::type) + 508 (any_invocable.h:508)
7  grpc                           0x53644 grpc_event_engine::experimental::PosixEngineClosure::Run() + 814 (status.h:814)
8  grpc                           0x2cccb4 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::Step() + 1394 (vector:1394)
9  grpc                           0x2cc9cc grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::ThreadBody() + 494 (work_stealing_thread_pool.cc:494)
10 grpc                           0x2cd210 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::__invoke(void*) + 262 (work_stealing_thread_pool.cc:262)
11 grpc                           0x2a2f9c grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) + 149 (thd.cc:149)
12 libsystem_pthread.dylib        0x482c _pthread_start + 104
13 libsystem_pthread.dylib        0xcd8 thread_start + 8

Reproducing the issue

We cannot reproduce the issue, it occurs in production builds in the wild.

Firebase SDK Version

11.4.2

Xcode Version

16.1

Installation Method

CocoaPods

Firebase Product(s)

Firestore

Targeted Platforms

iOS

Relevant Log Output

No response

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If using CocoaPods, the project's Podfile.lock

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PODS:
  - abseil/algorithm (1.20240116.2):
    - abseil/algorithm/algorithm (= 1.20240116.2)
    - abseil/algorithm/container (= 1.20240116.2)
  - abseil/algorithm/algorithm (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/algorithm/container (1.20240116.2):
    - abseil/algorithm/algorithm
    - abseil/base/core_headers
    - abseil/base/nullability
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/base (1.20240116.2):
    - abseil/base/atomic_hook (= 1.20240116.2)
    - abseil/base/base (= 1.20240116.2)
    - abseil/base/base_internal (= 1.20240116.2)
    - abseil/base/config (= 1.20240116.2)
    - abseil/base/core_headers (= 1.20240116.2)
    - abseil/base/cycleclock_internal (= 1.20240116.2)
    - abseil/base/dynamic_annotations (= 1.20240116.2)
    - abseil/base/endian (= 1.20240116.2)
    - abseil/base/errno_saver (= 1.20240116.2)
    - abseil/base/fast_type_id (= 1.20240116.2)
    - abseil/base/log_severity (= 1.20240116.2)
    - abseil/base/malloc_internal (= 1.20240116.2)
    - abseil/base/no_destructor (= 1.20240116.2)
    - abseil/base/nullability (= 1.20240116.2)
    - abseil/base/prefetch (= 1.20240116.2)
    - abseil/base/pretty_function (= 1.20240116.2)
    - abseil/base/raw_logging_internal (= 1.20240116.2)
    - abseil/base/spinlock_wait (= 1.20240116.2)
    - abseil/base/strerror (= 1.20240116.2)
    - abseil/base/throw_delegate (= 1.20240116.2)
  - abseil/base/atomic_hook (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/base/base (1.20240116.2):
    - abseil/base/atomic_hook
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/cycleclock_internal
    - abseil/base/dynamic_annotations
    - abseil/base/log_severity
    - abseil/base/nullability
    - abseil/base/raw_logging_internal
    - abseil/base/spinlock_wait
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/base/base_internal (1.20240116.2):
    - abseil/base/config
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/base/config (1.20240116.2):
    - abseil/xcprivacy
  - abseil/base/core_headers (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/base/cycleclock_internal (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/base/dynamic_annotations (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/base/endian (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/nullability
    - abseil/xcprivacy
  - abseil/base/errno_saver (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/base/fast_type_id (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/base/log_severity (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/base/malloc_internal (1.20240116.2):
    - abseil/base/base
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/base/raw_logging_internal
    - abseil/xcprivacy
  - abseil/base/no_destructor (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/base/nullability (1.20240116.2):
    - abseil/base/core_headers
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/base/prefetch (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/base/pretty_function (1.20240116.2):
    - abseil/xcprivacy
  - abseil/base/raw_logging_internal (1.20240116.2):
    - abseil/base/atomic_hook
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/errno_saver
    - abseil/base/log_severity
    - abseil/xcprivacy
  - abseil/base/spinlock_wait (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/core_headers
    - abseil/base/errno_saver
    - abseil/xcprivacy
  - abseil/base/strerror (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/errno_saver
    - abseil/xcprivacy
  - abseil/base/throw_delegate (1.20240116.2):
    - abseil/base/config
    - abseil/base/raw_logging_internal
    - abseil/xcprivacy
  - abseil/cleanup/cleanup (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/cleanup/cleanup_internal
    - abseil/xcprivacy
  - abseil/cleanup/cleanup_internal (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/core_headers
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/container/common (1.20240116.2):
    - abseil/meta/type_traits
    - abseil/types/optional
    - abseil/xcprivacy
  - abseil/container/common_policy_traits (1.20240116.2):
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/container/compressed_tuple (1.20240116.2):
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/container/container_memory (1.20240116.2):
    - abseil/base/config
    - abseil/memory/memory
    - abseil/meta/type_traits
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/container/fixed_array (1.20240116.2):
    - abseil/algorithm/algorithm
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/base/throw_delegate
    - abseil/container/compressed_tuple
    - abseil/memory/memory
    - abseil/xcprivacy
  - abseil/container/flat_hash_map (1.20240116.2):
    - abseil/algorithm/container
    - abseil/base/core_headers
    - abseil/container/container_memory
    - abseil/container/hash_function_defaults
    - abseil/container/raw_hash_map
    - abseil/memory/memory
    - abseil/xcprivacy
  - abseil/container/flat_hash_set (1.20240116.2):
    - abseil/algorithm/container
    - abseil/base/core_headers
    - abseil/container/container_memory
    - abseil/container/hash_function_defaults
    - abseil/container/raw_hash_set
    - abseil/memory/memory
    - abseil/xcprivacy
  - abseil/container/hash_function_defaults (1.20240116.2):
    - abseil/base/config
    - abseil/hash/hash
    - abseil/strings/cord
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/container/hash_policy_traits (1.20240116.2):
    - abseil/container/common_policy_traits
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/container/hashtable_debug_hooks (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/container/hashtablez_sampler (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/raw_logging_internal
    - abseil/debugging/stacktrace
    - abseil/memory/memory
    - abseil/profiling/exponential_biased
    - abseil/profiling/sample_recorder
    - abseil/synchronization/synchronization
    - abseil/time/time
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/container/inlined_vector (1.20240116.2):
    - abseil/algorithm/algorithm
    - abseil/base/core_headers
    - abseil/base/throw_delegate
    - abseil/container/inlined_vector_internal
    - abseil/memory/memory
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/container/inlined_vector_internal (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/container/compressed_tuple
    - abseil/memory/memory
    - abseil/meta/type_traits
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/container/layout (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/debugging/demangle_internal
    - abseil/meta/type_traits
    - abseil/strings/strings
    - abseil/types/span
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/container/raw_hash_map (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/throw_delegate
    - abseil/container/container_memory
    - abseil/container/raw_hash_set
    - abseil/xcprivacy
  - abseil/container/raw_hash_set (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/base/endian
    - abseil/base/prefetch
    - abseil/base/raw_logging_internal
    - abseil/container/common
    - abseil/container/compressed_tuple
    - abseil/container/container_memory
    - abseil/container/hash_policy_traits
    - abseil/container/hashtable_debug_hooks
    - abseil/container/hashtablez_sampler
    - abseil/hash/hash
    - abseil/memory/memory
    - abseil/meta/type_traits
    - abseil/numeric/bits
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/crc/cpu_detect (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/crc/crc32c (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/base/prefetch
    - abseil/crc/cpu_detect
    - abseil/crc/crc_internal
    - abseil/crc/non_temporal_memcpy
    - abseil/strings/str_format
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/crc/crc_cord_state (1.20240116.2):
    - abseil/base/config
    - abseil/crc/crc32c
    - abseil/numeric/bits
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/crc/crc_internal (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/base/prefetch
    - abseil/base/raw_logging_internal
    - abseil/crc/cpu_detect
    - abseil/memory/memory
    - abseil/numeric/bits
    - abseil/xcprivacy
  - abseil/crc/non_temporal_arm_intrinsics (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/crc/non_temporal_memcpy (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/crc/non_temporal_arm_intrinsics
    - abseil/xcprivacy
  - abseil/debugging/debugging_internal (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/base/errno_saver
    - abseil/base/raw_logging_internal
    - abseil/xcprivacy
  - abseil/debugging/demangle_internal (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/debugging/examine_stack (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/raw_logging_internal
    - abseil/debugging/stacktrace
    - abseil/debugging/symbolize
    - abseil/xcprivacy
  - abseil/debugging/stacktrace (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/base/raw_logging_internal
    - abseil/debugging/debugging_internal
    - abseil/xcprivacy
  - abseil/debugging/symbolize (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/base/malloc_internal
    - abseil/base/raw_logging_internal
    - abseil/debugging/debugging_internal
    - abseil/debugging/demangle_internal
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/flags/commandlineflag (1.20240116.2):
    - abseil/base/config
    - abseil/base/fast_type_id
    - abseil/flags/commandlineflag_internal
    - abseil/strings/strings
    - abseil/types/optional
    - abseil/xcprivacy
  - abseil/flags/commandlineflag_internal (1.20240116.2):
    - abseil/base/config
    - abseil/base/fast_type_id
    - abseil/xcprivacy
  - abseil/flags/config (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/flags/path_util
    - abseil/flags/program_name
    - abseil/strings/strings
    - abseil/synchronization/synchronization
    - abseil/xcprivacy
  - abseil/flags/flag (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/flags/config
    - abseil/flags/flag_internal
    - abseil/flags/reflection
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/flags/flag_internal (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/flags/commandlineflag
    - abseil/flags/commandlineflag_internal
    - abseil/flags/config
    - abseil/flags/marshalling
    - abseil/flags/reflection
    - abseil/memory/memory
    - abseil/meta/type_traits
    - abseil/strings/strings
    - abseil/synchronization/synchronization
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/flags/marshalling (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/log_severity
    - abseil/numeric/int128
    - abseil/strings/str_format
    - abseil/strings/strings
    - abseil/types/optional
    - abseil/xcprivacy
  - abseil/flags/path_util (1.20240116.2):
    - abseil/base/config
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/flags/private_handle_accessor (1.20240116.2):
    - abseil/base/config
    - abseil/flags/commandlineflag
    - abseil/flags/commandlineflag_internal
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/flags/program_name (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/flags/path_util
    - abseil/strings/strings
    - abseil/synchronization/synchronization
    - abseil/xcprivacy
  - abseil/flags/reflection (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/no_destructor
    - abseil/container/flat_hash_map
    - abseil/flags/commandlineflag
    - abseil/flags/commandlineflag_internal
    - abseil/flags/config
    - abseil/flags/private_handle_accessor
    - abseil/strings/strings
    - abseil/synchronization/synchronization
    - abseil/xcprivacy
  - abseil/functional/any_invocable (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/meta/type_traits
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/functional/bind_front (1.20240116.2):
    - abseil/base/base_internal
    - abseil/container/compressed_tuple
    - abseil/meta/type_traits
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/functional/function_ref (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/core_headers
    - abseil/functional/any_invocable
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/hash/city (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/xcprivacy
  - abseil/hash/hash (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/container/fixed_array
    - abseil/functional/function_ref
    - abseil/hash/city
    - abseil/hash/low_level_hash
    - abseil/meta/type_traits
    - abseil/numeric/bits
    - abseil/numeric/int128
    - abseil/strings/strings
    - abseil/types/optional
    - abseil/types/variant
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/hash/low_level_hash (1.20240116.2):
    - abseil/base/config
    - abseil/base/endian
    - abseil/base/prefetch
    - abseil/numeric/int128
    - abseil/xcprivacy
  - abseil/log/absl_check (1.20240116.2):
    - abseil/log/internal/check_impl
    - abseil/xcprivacy
  - abseil/log/absl_log (1.20240116.2):
    - abseil/log/internal/log_impl
    - abseil/xcprivacy
  - abseil/log/absl_vlog_is_on (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/log/internal/vlog_config
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/log/check (1.20240116.2):
    - abseil/log/internal/check_impl
    - abseil/log/internal/check_op
    - abseil/log/internal/conditions
    - abseil/log/internal/log_message
    - abseil/log/internal/strip
    - abseil/xcprivacy
  - abseil/log/globals (1.20240116.2):
    - abseil/base/atomic_hook
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/log_severity
    - abseil/base/raw_logging_internal
    - abseil/hash/hash
    - abseil/log/internal/vlog_config
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/log/internal/append_truncated (1.20240116.2):
    - abseil/base/config
    - abseil/strings/strings
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/log/internal/check_impl (1.20240116.2):
    - abseil/base/core_headers
    - abseil/log/internal/check_op
    - abseil/log/internal/conditions
    - abseil/log/internal/log_message
    - abseil/log/internal/strip
    - abseil/xcprivacy
  - abseil/log/internal/check_op (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/log/internal/nullguard
    - abseil/log/internal/nullstream
    - abseil/log/internal/strip
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/log/internal/conditions (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/log/internal/voidify
    - abseil/xcprivacy
  - abseil/log/internal/config (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/log/internal/fnmatch (1.20240116.2):
    - abseil/base/config
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/log/internal/format (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/log_severity
    - abseil/log/internal/append_truncated
    - abseil/log/internal/config
    - abseil/log/internal/globals
    - abseil/strings/str_format
    - abseil/strings/strings
    - abseil/time/time
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/log/internal/globals (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/log_severity
    - abseil/base/raw_logging_internal
    - abseil/strings/strings
    - abseil/time/time
    - abseil/xcprivacy
  - abseil/log/internal/log_impl (1.20240116.2):
    - abseil/log/absl_vlog_is_on
    - abseil/log/internal/conditions
    - abseil/log/internal/log_message
    - abseil/log/internal/strip
    - abseil/xcprivacy
  - abseil/log/internal/log_message (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/errno_saver
    - abseil/base/log_severity
    - abseil/base/raw_logging_internal
    - abseil/base/strerror
    - abseil/container/inlined_vector
    - abseil/debugging/examine_stack
    - abseil/log/globals
    - abseil/log/internal/append_truncated
    - abseil/log/internal/format
    - abseil/log/internal/globals
    - abseil/log/internal/log_sink_set
    - abseil/log/internal/nullguard
    - abseil/log/internal/proto
    - abseil/log/log_entry
    - abseil/log/log_sink
    - abseil/log/log_sink_registry
    - abseil/memory/memory
    - abseil/strings/strings
    - abseil/time/time
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/log/internal/log_sink_set (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/log_severity
    - abseil/base/no_destructor
    - abseil/base/raw_logging_internal
    - abseil/cleanup/cleanup
    - abseil/log/globals
    - abseil/log/internal/config
    - abseil/log/internal/globals
    - abseil/log/log_entry
    - abseil/log/log_sink
    - abseil/strings/strings
    - abseil/synchronization/synchronization
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/log/internal/nullguard (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/log/internal/nullstream (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/log_severity
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/log/internal/proto (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/strings/strings
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/log/internal/strip (1.20240116.2):
    - abseil/base/log_severity
    - abseil/log/internal/log_message
    - abseil/log/internal/nullstream
    - abseil/xcprivacy
  - abseil/log/internal/vlog_config (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/no_destructor
    - abseil/log/internal/fnmatch
    - abseil/memory/memory
    - abseil/strings/strings
    - abseil/synchronization/synchronization
    - abseil/types/optional
    - abseil/xcprivacy
  - abseil/log/internal/voidify (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/log/log (1.20240116.2):
    - abseil/log/internal/log_impl
    - abseil/log/vlog_is_on
    - abseil/xcprivacy
  - abseil/log/log_entry (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/log_severity
    - abseil/log/internal/config
    - abseil/strings/strings
    - abseil/time/time
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/log/log_sink (1.20240116.2):
    - abseil/base/config
    - abseil/log/log_entry
    - abseil/xcprivacy
  - abseil/log/log_sink_registry (1.20240116.2):
    - abseil/base/config
    - abseil/log/internal/log_sink_set
    - abseil/log/log_sink
    - abseil/xcprivacy
  - abseil/log/vlog_is_on (1.20240116.2):
    - abseil/log/absl_vlog_is_on
    - abseil/xcprivacy
  - abseil/memory (1.20240116.2):
    - abseil/memory/memory (= 1.20240116.2)
  - abseil/memory/memory (1.20240116.2):
    - abseil/base/core_headers
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/meta (1.20240116.2):
    - abseil/meta/type_traits (= 1.20240116.2)
  - abseil/meta/type_traits (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/numeric/bits (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/numeric/int128 (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/numeric/bits
    - abseil/xcprivacy
  - abseil/numeric/representation (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/profiling/exponential_biased (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/xcprivacy
  - abseil/profiling/sample_recorder (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/synchronization/synchronization
    - abseil/time/time
    - abseil/xcprivacy
  - abseil/random/bit_gen_ref (1.20240116.2):
    - abseil/base/core_headers
    - abseil/base/fast_type_id
    - abseil/meta/type_traits
    - abseil/random/internal/distribution_caller
    - abseil/random/internal/fast_uniform_bits
    - abseil/random/random
    - abseil/xcprivacy
  - abseil/random/distributions (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/meta/type_traits
    - abseil/numeric/bits
    - abseil/random/internal/distribution_caller
    - abseil/random/internal/fast_uniform_bits
    - abseil/random/internal/fastmath
    - abseil/random/internal/generate_real
    - abseil/random/internal/iostream_state_saver
    - abseil/random/internal/traits
    - abseil/random/internal/uniform_helper
    - abseil/random/internal/wide_multiply
    - abseil/strings/strings
    - abseil/xcprivacy
  - abseil/random/internal/distribution_caller (1.20240116.2):
    - abseil/base/config
    - abseil/base/fast_type_id
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/random/internal/fast_uniform_bits (1.20240116.2):
    - abseil/base/config
    - abseil/meta/type_traits
    - abseil/random/internal/traits
    - abseil/xcprivacy
  - abseil/random/internal/fastmath (1.20240116.2):
    - abseil/numeric/bits
    - abseil/xcprivacy
  - abseil/random/internal/generate_real (1.20240116.2):
    - abseil/meta/type_traits
    - abseil/numeric/bits
    - abseil/random/internal/fastmath
    - abseil/random/internal/traits
    - abseil/xcprivacy
  - abseil/random/internal/iostream_state_saver (1.20240116.2):
    - abseil/meta/type_traits
    - abseil/numeric/int128
    - abseil/xcprivacy
  - abseil/random/internal/nonsecure_base (1.20240116.2):
    - abseil/base/core_headers
    - abseil/container/inlined_vector
    - abseil/meta/type_traits
    - abseil/random/internal/pool_urbg
    - abseil/random/internal/salted_seed_seq
    - abseil/random/internal/seed_material
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/random/internal/pcg_engine (1.20240116.2):
    - abseil/base/config
    - abseil/meta/type_traits
    - abseil/numeric/bits
    - abseil/numeric/int128
    - abseil/random/internal/fastmath
    - abseil/random/internal/iostream_state_saver
    - abseil/xcprivacy
  - abseil/random/internal/platform (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/random/internal/pool_urbg (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/base/raw_logging_internal
    - abseil/random/internal/randen
    - abseil/random/internal/seed_material
    - abseil/random/internal/traits
    - abseil/random/seed_gen_exception
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/random/internal/randen (1.20240116.2):
    - abseil/base/raw_logging_internal
    - abseil/random/internal/platform
    - abseil/random/internal/randen_hwaes
    - abseil/random/internal/randen_slow
    - abseil/xcprivacy
  - abseil/random/internal/randen_engine (1.20240116.2):
    - abseil/base/endian
    - abseil/meta/type_traits
    - abseil/random/internal/iostream_state_saver
    - abseil/random/internal/randen
    - abseil/xcprivacy
  - abseil/random/internal/randen_hwaes (1.20240116.2):
    - abseil/base/config
    - abseil/random/internal/platform
    - abseil/random/internal/randen_hwaes_impl
    - abseil/xcprivacy
  - abseil/random/internal/randen_hwaes_impl (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/numeric/int128
    - abseil/random/internal/platform
    - abseil/xcprivacy
  - abseil/random/internal/randen_slow (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/numeric/int128
    - abseil/random/internal/platform
    - abseil/xcprivacy
  - abseil/random/internal/salted_seed_seq (1.20240116.2):
    - abseil/container/inlined_vector
    - abseil/meta/type_traits
    - abseil/random/internal/seed_material
    - abseil/types/optional
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/random/internal/seed_material (1.20240116.2):
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/base/raw_logging_internal
    - abseil/random/internal/fast_uniform_bits
    - abseil/strings/strings
    - abseil/types/optional
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/random/internal/traits (1.20240116.2):
    - abseil/base/config
    - abseil/numeric/bits
    - abseil/numeric/int128
    - abseil/xcprivacy
  - abseil/random/internal/uniform_helper (1.20240116.2):
    - abseil/base/config
    - abseil/meta/type_traits
    - abseil/numeric/int128
    - abseil/random/internal/traits
    - abseil/xcprivacy
  - abseil/random/internal/wide_multiply (1.20240116.2):
    - abseil/base/config
    - abseil/numeric/bits
    - abseil/numeric/int128
    - abseil/random/internal/traits
    - abseil/xcprivacy
  - abseil/random/random (1.20240116.2):
    - abseil/random/distributions
    - abseil/random/internal/nonsecure_base
    - abseil/random/internal/pcg_engine
    - abseil/random/internal/pool_urbg
    - abseil/random/internal/randen_engine
    - abseil/random/seed_sequences
    - abseil/xcprivacy
  - abseil/random/seed_gen_exception (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/random/seed_sequences (1.20240116.2):
    - abseil/base/config
    - abseil/random/internal/pool_urbg
    - abseil/random/internal/salted_seed_seq
    - abseil/random/internal/seed_material
    - abseil/random/seed_gen_exception
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/status/status (1.20240116.2):
    - abseil/base/atomic_hook
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/no_destructor
    - abseil/base/nullability
    - abseil/base/raw_logging_internal
    - abseil/base/strerror
    - abseil/container/inlined_vector
    - abseil/debugging/stacktrace
    - abseil/debugging/symbolize
    - abseil/functional/function_ref
    - abseil/memory/memory
    - abseil/strings/cord
    - abseil/strings/str_format
    - abseil/strings/strings
    - abseil/types/optional
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/status/statusor (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/nullability
    - abseil/base/raw_logging_internal
    - abseil/meta/type_traits
    - abseil/status/status
    - abseil/strings/has_ostream_operator
    - abseil/strings/str_format
    - abseil/strings/strings
    - abseil/types/variant
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/strings/charset (1.20240116.2):
    - abseil/base/core_headers
    - abseil/strings/string_view
    - abseil/xcprivacy
  - abseil/strings/cord (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/base/nullability
    - abseil/base/raw_logging_internal
    - abseil/container/inlined_vector
    - abseil/crc/crc32c
    - abseil/crc/crc_cord_state
    - abseil/functional/function_ref
    - abseil/meta/type_traits
    - abseil/numeric/bits
    - abseil/strings/cord_internal
    - abseil/strings/cordz_functions
    - abseil/strings/cordz_info
    - abseil/strings/cordz_statistics
    - abseil/strings/cordz_update_scope
    - abseil/strings/cordz_update_tracker
    - abseil/strings/internal
    - abseil/strings/strings
    - abseil/types/optional
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/strings/cord_internal (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/base/raw_logging_internal
    - abseil/base/throw_delegate
    - abseil/container/compressed_tuple
    - abseil/container/container_memory
    - abseil/container/inlined_vector
    - abseil/container/layout
    - abseil/crc/crc_cord_state
    - abseil/functional/function_ref
    - abseil/meta/type_traits
    - abseil/strings/strings
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/strings/cordz_functions (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/raw_logging_internal
    - abseil/profiling/exponential_biased
    - abseil/xcprivacy
  - abseil/strings/cordz_handle (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/raw_logging_internal
    - abseil/synchronization/synchronization
    - abseil/xcprivacy
  - abseil/strings/cordz_info (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/raw_logging_internal
    - abseil/container/inlined_vector
    - abseil/debugging/stacktrace
    - abseil/strings/cord_internal
    - abseil/strings/cordz_functions
    - abseil/strings/cordz_handle
    - abseil/strings/cordz_statistics
    - abseil/strings/cordz_update_tracker
    - abseil/synchronization/synchronization
    - abseil/time/time
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/strings/cordz_statistics (1.20240116.2):
    - abseil/base/config
    - abseil/strings/cordz_update_tracker
    - abseil/xcprivacy
  - abseil/strings/cordz_update_scope (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/strings/cord_internal
    - abseil/strings/cordz_info
    - abseil/strings/cordz_update_tracker
    - abseil/xcprivacy
  - abseil/strings/cordz_update_tracker (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/strings/has_ostream_operator (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/strings/internal (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/base/raw_logging_internal
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/strings/str_format (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/nullability
    - abseil/strings/str_format_internal
    - abseil/strings/string_view
    - abseil/types/span
    - abseil/xcprivacy
  - abseil/strings/str_format_internal (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/container/fixed_array
    - abseil/container/inlined_vector
    - abseil/functional/function_ref
    - abseil/meta/type_traits
    - abseil/numeric/bits
    - abseil/numeric/int128
    - abseil/numeric/representation
    - abseil/strings/strings
    - abseil/types/optional
    - abseil/types/span
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/strings/string_view (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/nullability
    - abseil/base/throw_delegate
    - abseil/xcprivacy
  - abseil/strings/strings (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/endian
    - abseil/base/nullability
    - abseil/base/raw_logging_internal
    - abseil/base/throw_delegate
    - abseil/memory/memory
    - abseil/meta/type_traits
    - abseil/numeric/bits
    - abseil/numeric/int128
    - abseil/strings/charset
    - abseil/strings/internal
    - abseil/strings/string_view
    - abseil/xcprivacy
  - abseil/synchronization/graphcycles_internal (1.20240116.2):
    - abseil/base/base
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/malloc_internal
    - abseil/base/raw_logging_internal
    - abseil/xcprivacy
  - abseil/synchronization/kernel_timeout_internal (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/raw_logging_internal
    - abseil/time/time
    - abseil/xcprivacy
  - abseil/synchronization/synchronization (1.20240116.2):
    - abseil/base/atomic_hook
    - abseil/base/base
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/dynamic_annotations
    - abseil/base/malloc_internal
    - abseil/base/raw_logging_internal
    - abseil/debugging/stacktrace
    - abseil/debugging/symbolize
    - abseil/synchronization/graphcycles_internal
    - abseil/synchronization/kernel_timeout_internal
    - abseil/time/time
    - abseil/xcprivacy
  - abseil/time (1.20240116.2):
    - abseil/time/internal (= 1.20240116.2)
    - abseil/time/time (= 1.20240116.2)
  - abseil/time/internal (1.20240116.2):
    - abseil/time/internal/cctz (= 1.20240116.2)
  - abseil/time/internal/cctz (1.20240116.2):
    - abseil/time/internal/cctz/civil_time (= 1.20240116.2)
    - abseil/time/internal/cctz/time_zone (= 1.20240116.2)
  - abseil/time/internal/cctz/civil_time (1.20240116.2):
    - abseil/base/config
    - abseil/xcprivacy
  - abseil/time/internal/cctz/time_zone (1.20240116.2):
    - abseil/base/config
    - abseil/time/internal/cctz/civil_time
    - abseil/xcprivacy
  - abseil/time/time (1.20240116.2):
    - abseil/base/base
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/raw_logging_internal
    - abseil/numeric/int128
    - abseil/strings/strings
    - abseil/time/internal/cctz/civil_time
    - abseil/time/internal/cctz/time_zone
    - abseil/types/optional
    - abseil/xcprivacy
  - abseil/types (1.20240116.2):
    - abseil/types/any (= 1.20240116.2)
    - abseil/types/bad_any_cast (= 1.20240116.2)
    - abseil/types/bad_any_cast_impl (= 1.20240116.2)
    - abseil/types/bad_optional_access (= 1.20240116.2)
    - abseil/types/bad_variant_access (= 1.20240116.2)
    - abseil/types/compare (= 1.20240116.2)
    - abseil/types/optional (= 1.20240116.2)
    - abseil/types/span (= 1.20240116.2)
    - abseil/types/variant (= 1.20240116.2)
  - abseil/types/any (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/fast_type_id
    - abseil/meta/type_traits
    - abseil/types/bad_any_cast
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/types/bad_any_cast (1.20240116.2):
    - abseil/base/config
    - abseil/types/bad_any_cast_impl
    - abseil/xcprivacy
  - abseil/types/bad_any_cast_impl (1.20240116.2):
    - abseil/base/config
    - abseil/base/raw_logging_internal
    - abseil/xcprivacy
  - abseil/types/bad_optional_access (1.20240116.2):
    - abseil/base/config
    - abseil/base/raw_logging_internal
    - abseil/xcprivacy
  - abseil/types/bad_variant_access (1.20240116.2):
    - abseil/base/config
    - abseil/base/raw_logging_internal
    - abseil/xcprivacy
  - abseil/types/compare (1.20240116.2):
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/types/optional (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/base/nullability
    - abseil/memory/memory
    - abseil/meta/type_traits
    - abseil/types/bad_optional_access
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/types/span (1.20240116.2):
    - abseil/algorithm/algorithm
    - abseil/base/core_headers
    - abseil/base/nullability
    - abseil/base/throw_delegate
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/types/variant (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/base/core_headers
    - abseil/meta/type_traits
    - abseil/types/bad_variant_access
    - abseil/utility/utility
    - abseil/xcprivacy
  - abseil/utility/utility (1.20240116.2):
    - abseil/base/base_internal
    - abseil/base/config
    - abseil/meta/type_traits
    - abseil/xcprivacy
  - abseil/xcprivacy (1.20240116.2)
  - Actions/Core (1.3.4)
  - AppAuth (1.7.5):
    - AppAuth/Core (= 1.7.5)
    - AppAuth/ExternalUserAgent (= 1.7.5)
  - AppAuth/Core (1.7.5)
  - AppAuth/ExternalUserAgent (1.7.5):
    - AppAuth/Core
  - Beacon (3.0.1)
  - BetterSegmentedControl (2.0.1)
  - BoringSSL-GRPC (0.0.36):
    - BoringSSL-GRPC/Implementation (= 0.0.36)
    - BoringSSL-GRPC/Interface (= 0.0.36)
  - BoringSSL-GRPC/Implementation (0.0.36):
    - BoringSSL-GRPC/Interface (= 0.0.36)
  - BoringSSL-GRPC/Interface (0.0.36)
  - Color-Picker-for-iOS (2.1.1)
  - DataCompression (3.8.0)
  - DNPWPSPrinter (1.0.2):
    - xaphodObjCUtils
  - Firebase (11.4.2):
    - Firebase/Core (= 11.4.2)
  - Firebase/Core (11.4.2):
    - Firebase/CoreOnly
    - FirebaseAnalytics (~> 11.4.0)
  - Firebase/CoreOnly (11.4.2):
    - FirebaseCore (= 11.4.2)
  - FirebaseAnalytics (11.4.0):
    - FirebaseAnalytics/AdIdSupport (= 11.4.0)
    - FirebaseCore (~> 11.0)
    - FirebaseInstallations (~> 11.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.0)
    - GoogleUtilities/MethodSwizzler (~> 8.0)
    - GoogleUtilities/Network (~> 8.0)
    - "GoogleUtilities/NSData+zlib (~> 8.0)"
    - nanopb (~> 3.30910.0)
  - FirebaseAnalytics/AdIdSupport (11.4.0):
    - FirebaseCore (~> 11.0)
    - FirebaseInstallations (~> 11.0)
    - GoogleAppMeasurement (= 11.4.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.0)
    - GoogleUtilities/MethodSwizzler (~> 8.0)
    - GoogleUtilities/Network (~> 8.0)
    - "GoogleUtilities/NSData+zlib (~> 8.0)"
    - nanopb (~> 3.30910.0)
  - FirebaseAppCheckInterop (11.4.0)
  - FirebaseAuth (11.4.0):
    - FirebaseAppCheckInterop (~> 11.0)
    - FirebaseAuthInterop (~> 11.0)
    - FirebaseCore (~> 11.4)
    - FirebaseCoreExtension (~> 11.4)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.0)
    - GoogleUtilities/Environment (~> 8.0)
    - GTMSessionFetcher/Core (< 5.0, >= 3.4)
    - RecaptchaInterop (~> 100.0)
  - FirebaseAuthInterop (11.4.0)
  - FirebaseAuthUI (14.2.6):
    - FirebaseAuth (< 12.0, >= 11.0)
    - FirebaseCore
  - FirebaseCore (11.4.2):
    - FirebaseCoreInternal (< 12.0, >= 11.4.2)
    - GoogleUtilities/Environment (~> 8.0)
    - GoogleUtilities/Logger (~> 8.0)
  - FirebaseCoreExtension (11.4.1):
    - FirebaseCore (~> 11.0)
  - FirebaseCoreInternal (11.4.2):
    - "GoogleUtilities/NSData+zlib (~> 8.0)"
  - FirebaseCrashlytics (11.4.0):
    - FirebaseCore (~> 11.4)
    - FirebaseInstallations (~> 11.0)
    - FirebaseRemoteConfigInterop (~> 11.0)
    - FirebaseSessions (~> 11.0)
    - GoogleDataTransport (~> 10.0)
    - GoogleUtilities/Environment (~> 8.0)
    - nanopb (~> 3.30910.0)
    - PromisesObjC (~> 2.4)
  - FirebaseDynamicLinks (11.4.0):
    - FirebaseCore (~> 11.0)
  - FirebaseEmailAuthUI (14.2.3):
    - FirebaseAuth
    - FirebaseAuthUI (>= 14.2)
    - FirebaseCore
    - GoogleUtilities/UserDefaults
  - FirebaseFirestore (11.4.0):
    - FirebaseCore (~> 11.4)
    - FirebaseCoreExtension (~> 11.4)
    - FirebaseFirestoreInternal (= 11.4.0)
    - FirebaseSharedSwift (~> 11.0)
  - FirebaseFirestoreInternal (11.4.0):
    - abseil/algorithm (~> 1.20240116.1)
    - abseil/base (~> 1.20240116.1)
    - abseil/container/flat_hash_map (~> 1.20240116.1)
    - abseil/memory (~> 1.20240116.1)
    - abseil/meta (~> 1.20240116.1)
    - abseil/strings/strings (~> 1.20240116.1)
    - abseil/time (~> 1.20240116.1)
    - abseil/types (~> 1.20240116.1)
    - FirebaseAppCheckInterop (~> 11.0)
    - FirebaseCore (~> 11.0)
    - "gRPC-C++ (~> 1.65.0)"
    - gRPC-Core (~> 1.65.0)
    - leveldb-library (~> 1.22)
    - nanopb (~> 3.30910.0)
  - FirebaseGoogleAuthUI (14.2.2):
    - FirebaseAuth
    - FirebaseAuthUI (>= 14.2)
    - FirebaseCore
    - GoogleSignIn (~> 7.0)
  - FirebaseInstallations (11.4.0):
    - FirebaseCore (~> 11.0)
    - GoogleUtilities/Environment (~> 8.0)
    - GoogleUtilities/UserDefaults (~> 8.0)
    - PromisesObjC (~> 2.4)
  - FirebaseOAuthUI (14.2.0):
    - FirebaseAuth (< 12.0, >= 8.0)
    - FirebaseAuthUI (< 15.0, >= 12.0.2)
  - FirebaseRemoteConfigInterop (11.4.0)
  - FirebaseSessions (11.4.0):
    - FirebaseCore (~> 11.4)
    - FirebaseCoreExtension (~> 11.4)
    - FirebaseInstallations (~> 11.0)
    - GoogleDataTransport (~> 10.0)
    - GoogleUtilities/Environment (~> 8.0)
    - GoogleUtilities/UserDefaults (~> 8.0)
    - nanopb (~> 3.30910.0)
    - PromisesSwift (~> 2.1)
  - FirebaseSharedSwift (11.4.0)
  - FirebaseStorage (11.4.0):
    - FirebaseAppCheckInterop (~> 11.0)
    - FirebaseAuthInterop (~> 11.0)
    - FirebaseCore (~> 11.4)
    - FirebaseCoreExtension (~> 11.4)
    - GoogleUtilities/Environment (~> 8.0)
    - GTMSessionFetcher/Core (< 5.0, >= 3.4)
  - FirebaseUI/Auth (14.2.0):
    - FirebaseAuthUI (~> 14.2)
  - FirebaseUI/Email (14.2.0):
    - FirebaseEmailAuthUI (~> 14.2)
  - FirebaseUI/Google (14.2.0):
    - FirebaseGoogleAuthUI (~> 14.2)
  - FirebaseUI/OAuth (14.2.0):
    - FirebaseOAuthUI (~> 14.2)
  - GoogleAppMeasurement (11.4.0):
    - GoogleAppMeasurement/AdIdSupport (= 11.4.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.0)
    - GoogleUtilities/MethodSwizzler (~> 8.0)
    - GoogleUtilities/Network (~> 8.0)
    - "GoogleUtilities/NSData+zlib (~> 8.0)"
    - nanopb (~> 3.30910.0)
  - GoogleAppMeasurement/AdIdSupport (11.4.0):
    - GoogleAppMeasurement/WithoutAdIdSupport (= 11.4.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 8.0)
    - GoogleUtilities/MethodSwizzler (~> 8.0)
    - GoogleUtilities/Network (~> 8.0)
    - "GoogleUtilities/NSData+zlib (~> 8.0)"
    - nanopb (~> 3.30910.0)
  - GoogleAppMeasurement/WithoutAdIdSupport (11.4.0):
    - GoogleUtilities/AppDelegateSwizzler (~> 8.0)
    - GoogleUtilities/MethodSwizzler (~> 8.0)
    - GoogleUtilities/Network (~> 8.0)
    - "GoogleUtilities/NSData+zlib (~> 8.0)"
    - nanopb (~> 3.30910.0)
  - GoogleDataTransport (10.1.0):
    - nanopb (~> 3.30910.0)
    - PromisesObjC (~> 2.4)
  - GoogleSignIn (7.1.0):
    - AppAuth (< 2.0, >= 1.7.3)
    - GTMAppAuth (< 5.0, >= 4.1.1)
    - GTMSessionFetcher/Core (~> 3.3)
  - GoogleUtilities/AppDelegateSwizzler (8.0.2):
    - GoogleUtilities/Environment
    - GoogleUtilities/Logger
    - GoogleUtilities/Network
    - GoogleUtilities/Privacy
  - GoogleUtilities/Environment (8.0.2):
    - GoogleUtilities/Privacy
  - GoogleUtilities/Logger (8.0.2):
    - GoogleUtilities/Environment
    - GoogleUtilities/Privacy
  - GoogleUtilities/MethodSwizzler (8.0.2):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - GoogleUtilities/Network (8.0.2):
    - GoogleUtilities/Logger
    - "GoogleUtilities/NSData+zlib"
    - GoogleUtilities/Privacy
    - GoogleUtilities/Reachability
  - "GoogleUtilities/NSData+zlib (8.0.2)":
    - GoogleUtilities/Privacy
  - GoogleUtilities/Privacy (8.0.2)
  - GoogleUtilities/Reachability (8.0.2):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - GoogleUtilities/UserDefaults (8.0.2):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - "gRPC-C++ (1.65.5)":
    - "gRPC-C++/Implementation (= 1.65.5)"
    - "gRPC-C++/Interface (= 1.65.5)"
  - "gRPC-C++/Implementation (1.65.5)":
    - abseil/algorithm/container (~> 1.20240116.2)
    - abseil/base/base (~> 1.20240116.2)
    - abseil/base/config (~> 1.20240116.2)
    - abseil/base/core_headers (~> 1.20240116.2)
    - abseil/base/log_severity (~> 1.20240116.2)
    - abseil/base/no_destructor (~> 1.20240116.2)
    - abseil/cleanup/cleanup (~> 1.20240116.2)
    - abseil/container/flat_hash_map (~> 1.20240116.2)
    - abseil/container/flat_hash_set (~> 1.20240116.2)
    - abseil/container/inlined_vector (~> 1.20240116.2)
    - abseil/flags/flag (~> 1.20240116.2)
    - abseil/flags/marshalling (~> 1.20240116.2)
    - abseil/functional/any_invocable (~> 1.20240116.2)
    - abseil/functional/bind_front (~> 1.20240116.2)
    - abseil/functional/function_ref (~> 1.20240116.2)
    - abseil/hash/hash (~> 1.20240116.2)
    - abseil/log/absl_check (~> 1.20240116.2)
    - abseil/log/absl_log (~> 1.20240116.2)
    - abseil/log/check (~> 1.20240116.2)
    - abseil/log/globals (~> 1.20240116.2)
    - abseil/log/log (~> 1.20240116.2)
    - abseil/memory/memory (~> 1.20240116.2)
    - abseil/meta/type_traits (~> 1.20240116.2)
    - abseil/random/bit_gen_ref (~> 1.20240116.2)
    - abseil/random/distributions (~> 1.20240116.2)
    - abseil/random/random (~> 1.20240116.2)
    - abseil/status/status (~> 1.20240116.2)
    - abseil/status/statusor (~> 1.20240116.2)
    - abseil/strings/cord (~> 1.20240116.2)
    - abseil/strings/str_format (~> 1.20240116.2)
    - abseil/strings/strings (~> 1.20240116.2)
    - abseil/synchronization/synchronization (~> 1.20240116.2)
    - abseil/time/time (~> 1.20240116.2)
    - abseil/types/optional (~> 1.20240116.2)
    - abseil/types/span (~> 1.20240116.2)
    - abseil/types/variant (~> 1.20240116.2)
    - abseil/utility/utility (~> 1.20240116.2)
    - "gRPC-C++/Interface (= 1.65.5)"
    - "gRPC-C++/Privacy (= 1.65.5)"
    - gRPC-Core (= 1.65.5)
  - "gRPC-C++/Interface (1.65.5)"
  - "gRPC-C++/Privacy (1.65.5)"
  - gRPC-Core (1.65.5):
    - gRPC-Core/Implementation (= 1.65.5)
    - gRPC-Core/Interface (= 1.65.5)
  - gRPC-Core/Implementation (1.65.5):
    - abseil/algorithm/container (~> 1.20240116.2)
    - abseil/base/base (~> 1.20240116.2)
    - abseil/base/config (~> 1.20240116.2)
    - abseil/base/core_headers (~> 1.20240116.2)
    - abseil/base/log_severity (~> 1.20240116.2)
    - abseil/base/no_destructor (~> 1.20240116.2)
    - abseil/cleanup/cleanup (~> 1.20240116.2)
    - abseil/container/flat_hash_map (~> 1.20240116.2)
    - abseil/container/flat_hash_set (~> 1.20240116.2)
    - abseil/container/inlined_vector (~> 1.20240116.2)
    - abseil/flags/flag (~> 1.20240116.2)
    - abseil/flags/marshalling (~> 1.20240116.2)
    - abseil/functional/any_invocable (~> 1.20240116.2)
    - abseil/functional/bind_front (~> 1.20240116.2)
    - abseil/functional/function_ref (~> 1.20240116.2)
    - abseil/hash/hash (~> 1.20240116.2)
    - abseil/log/check (~> 1.20240116.2)
    - abseil/log/globals (~> 1.20240116.2)
    - abseil/log/log (~> 1.20240116.2)
    - abseil/memory/memory (~> 1.20240116.2)
    - abseil/meta/type_traits (~> 1.20240116.2)
    - abseil/random/bit_gen_ref (~> 1.20240116.2)
    - abseil/random/distributions (~> 1.20240116.2)
    - abseil/random/random (~> 1.20240116.2)
    - abseil/status/status (~> 1.20240116.2)
    - abseil/status/statusor (~> 1.20240116.2)
    - abseil/strings/cord (~> 1.20240116.2)
    - abseil/strings/str_format (~> 1.20240116.2)
    - abseil/strings/strings (~> 1.20240116.2)
    - abseil/synchronization/synchronization (~> 1.20240116.2)
    - abseil/time/time (~> 1.20240116.2)
    - abseil/types/optional (~> 1.20240116.2)
    - abseil/types/span (~> 1.20240116.2)
    - abseil/types/variant (~> 1.20240116.2)
    - abseil/utility/utility (~> 1.20240116.2)
    - BoringSSL-GRPC (= 0.0.36)
    - gRPC-Core/Interface (= 1.65.5)
    - gRPC-Core/Privacy (= 1.65.5)
  - gRPC-Core/Interface (1.65.5)
  - gRPC-Core/Privacy (1.65.5)
  - GTMAppAuth (4.1.1):
    - AppAuth/Core (~> 1.7)
    - GTMSessionFetcher/Core (< 4.0, >= 3.3)
  - GTMSessionFetcher/Core (3.5.0)
  - leveldb-library (1.22.6)
  - LicensePlist (3.25.1)
  - MetalPetal/Core (1.25.2)
  - MetalPetal/Swift (1.25.2):
    - MetalPetal/Core
  - nanopb (3.30910.0):
    - nanopb/decode (= 3.30910.0)
    - nanopb/encode (= 3.30910.0)
  - nanopb/decode (3.30910.0)
  - nanopb/encode (3.30910.0)
  - PhoneNumberKit (4.0.0):
    - PhoneNumberKit/PhoneNumberKitCore (= 4.0.0)
    - PhoneNumberKit/UIKit (= 4.0.0)
  - PhoneNumberKit/PhoneNumberKitCore (4.0.0)
  - PhoneNumberKit/UIKit (4.0.0):
    - PhoneNumberKit/PhoneNumberKitCore
  - PromisesObjC (2.4.0)
  - PromisesSwift (2.4.0):
    - PromisesObjC (= 2.4.0)
  - RecaptchaInterop (100.0.0)
  - SDWebImage (5.19.7):
    - SDWebImage/Core (= 5.19.7)
  - SDWebImage/Core (5.19.7)
  - VideoNetworkFramework (1.1.7):
    - VideoNetworkFramework/Core (= 1.1.7)
  - VideoNetworkFramework/Core (1.1.7):
    - DataCompression (< 4.0.0)
  - xaphodObjCUtils (0.0.13):
    - xaphodObjCUtils/CocoaRunloopSocket (= 0.0.13)
    - xaphodObjCUtils/RXTimer (= 0.0.13)
  - xaphodObjCUtils/CocoaRunloopSocket (0.0.13)
  - xaphodObjCUtils/RXTimer (0.0.13)

DEPENDENCIES:
  - "Actions/Core (from `git@github.com:xaphod/Actions.git`)"
  - Beacon
  - BetterSegmentedControl
  - Color-Picker-for-iOS (from `https://github.com/xaphod/Color-Picker-for-iOS.git`)
  - "DNPWPSPrinter (from `git@github.com:xaphod/DNPWPSPrinter.git`)"
  - Firebase
  - FirebaseAnalytics
  - FirebaseAuth
  - FirebaseCore
  - FirebaseCrashlytics
  - FirebaseDynamicLinks
  - FirebaseFirestore
  - FirebaseStorage
  - FirebaseUI/Auth
  - FirebaseUI/Email
  - FirebaseUI/Google
  - FirebaseUI/OAuth
  - LicensePlist
  - MetalPetal/Swift
  - PhoneNumberKit (from `https://github.com/marmelroy/PhoneNumberKit`)
  - SDWebImage
  - "VideoNetworkFramework (from `git@github.com:xaphod/VideoNetworkFramework.git`)"
  - "xaphodObjCUtils (from `git@github.com:xaphod/xaphodObjCUtils.git`)"
  - "xaphodObjCUtils/RXTimer (from `git@github.com:xaphod/xaphodObjCUtils.git`)"

SPEC REPOS:
  trunk:
    - abseil
    - AppAuth
    - Beacon
    - BetterSegmentedControl
    - BoringSSL-GRPC
    - DataCompression
    - Firebase
    - FirebaseAnalytics
    - FirebaseAppCheckInterop
    - FirebaseAuth
    - FirebaseAuthInterop
    - FirebaseAuthUI
    - FirebaseCore
    - FirebaseCoreExtension
    - FirebaseCoreInternal
    - FirebaseCrashlytics
    - FirebaseDynamicLinks
    - FirebaseEmailAuthUI
    - FirebaseFirestore
    - FirebaseFirestoreInternal
    - FirebaseGoogleAuthUI
    - FirebaseInstallations
    - FirebaseOAuthUI
    - FirebaseRemoteConfigInterop
    - FirebaseSessions
    - FirebaseSharedSwift
    - FirebaseStorage
    - FirebaseUI
    - GoogleAppMeasurement
    - GoogleDataTransport
    - GoogleSignIn
    - GoogleUtilities
    - "gRPC-C++"
    - gRPC-Core
    - GTMAppAuth
    - GTMSessionFetcher
    - leveldb-library
    - LicensePlist
    - MetalPetal
    - nanopb
    - PromisesObjC
    - PromisesSwift
    - RecaptchaInterop
    - SDWebImage

EXTERNAL SOURCES:
  Actions:
    :git: "git@github.com:xaphod/Actions.git"
  Color-Picker-for-iOS:
    :git: https://github.com/xaphod/Color-Picker-for-iOS.git
  DNPWPSPrinter:
    :git: "git@github.com:xaphod/DNPWPSPrinter.git"
  PhoneNumberKit:
    :git: https://github.com/marmelroy/PhoneNumberKit
  VideoNetworkFramework:
    :git: "git@github.com:xaphod/VideoNetworkFramework.git"
  xaphodObjCUtils:
    :git: "git@github.com:xaphod/xaphodObjCUtils.git"

CHECKOUT OPTIONS:
  Actions:
    :commit: 555a9fe7157308d1109fa5eec47ae3730f559206
    :git: "git@github.com:xaphod/Actions.git"
  Color-Picker-for-iOS:
    :commit: 794dadd0e579af296a0b1434ac67fa0e27c68ed8
    :git: https://github.com/xaphod/Color-Picker-for-iOS.git
  DNPWPSPrinter:
    :commit: fc48891e6a445e60c5286c71665b97a71f6f0915
    :git: "git@github.com:xaphod/DNPWPSPrinter.git"
  PhoneNumberKit:
    :commit: 0fb5075ee09fa6637055918afc9f9258b908ba60
    :git: https://github.com/marmelroy/PhoneNumberKit
  VideoNetworkFramework:
    :commit: 696ede9d2d6a97ad3dd991dafcf9a4d4e796df7f
    :git: "git@github.com:xaphod/VideoNetworkFramework.git"
  xaphodObjCUtils:
    :commit: 67815dc59a9e5d57786c7bae09c153af8fbd5161
    :git: "git@github.com:xaphod/xaphodObjCUtils.git"

SPEC CHECKSUMS:
  abseil: d121da9ef7e2ff4cab7666e76c5a3e0915ae08c3
  Actions: 54a86aef7fae1b0d766dbc83979521e1e86852df
  AppAuth: 501c04eda8a8d11f179dbe8637b7a91bb7e5d2fa
  Beacon: e6793fcd1fefe8fe9436a0bad3e79e7678e16105
  BetterSegmentedControl: 09607b27861d49cbce48b7673b74f9150a3d371a
  BoringSSL-GRPC: ca6a8e5d04812fce8ffd6437810c2d46f925eaeb
  Color-Picker-for-iOS: 656c04b439d8f610593443e4ebcec611cfba26f7
  DataCompression: 630f9e7db6360b4d8929fb72fbd23689ca43bc16
  DNPWPSPrinter: 06470dccdc79fcf9073766df58d6b53c6b22f9e2
  Firebase: 7fd5466678d964be78fbf536d8a3385da19c4828
  FirebaseAnalytics: 3feef9ae8733c567866342a1000691baaa7cad49
  FirebaseAppCheckInterop: 1b9643ae2f1ee214488caa2f8e32b7bc2f0f3735
  FirebaseAuth: c359af98bd703cbf4293eec107a40de08ede6ce6
  FirebaseAuthInterop: 9ac948965ac13ec9d8a080f39490ddb2bda30520
  FirebaseAuthUI: 8e5c09b20bf11478b9fa42c7ed6575fa95807c86
  FirebaseCore: 6b32c57269bd999aab34354c3923d92a6e5f3f84
  FirebaseCoreExtension: f1bc67a4702931a7caa097d8e4ac0a1b0d16720e
  FirebaseCoreInternal: 35731192cab10797b88411be84940d2beb33a238
  FirebaseCrashlytics: 41bbdd2b514a8523cede0c217aee6ef7ecf38401
  FirebaseDynamicLinks: 192110d77418357fe994f2823a7df7db3ccb15bf
  FirebaseEmailAuthUI: c448736db9fcd5895d29229a9e0aec016ece0389
  FirebaseFirestore: 2ccdf893fd7e175aa8ec58faa06338b346d27db8
  FirebaseFirestoreInternal: 004452c4669d5df8869c9f8f7a24ee0009852d5b
  FirebaseGoogleAuthUI: bbfd673275e4a4a4a3d0e451884087452d088453
  FirebaseInstallations: 6ef4a1c7eb2a61ee1f74727d7f6ce2e72acf1414
  FirebaseOAuthUI: 13e6b83a4e9680f2806107d7b383ede1f550e499
  FirebaseRemoteConfigInterop: e76f46ffa4d6a65e273d4dfebb6a79e588cec136
  FirebaseSessions: 3f56f177d9e53a85021d16b31f9a111849d1dd8b
  FirebaseSharedSwift: 505dae2d05969dbf6d43749a642bb1bf230f0252
  FirebaseStorage: 1bf8f80ac3bb02c72844b7350e95e10be7113ef0
  FirebaseUI: 3909853fc34f316c822e195376f144b1b0c6ca15
  GoogleAppMeasurement: 987769c4ca6b968f2479fbcc9fe3ce34af454b8e
  GoogleDataTransport: aae35b7ea0c09004c3797d53c8c41f66f219d6a7
  GoogleSignIn: d4281ab6cf21542b1cfaff85c191f230b399d2db
  GoogleUtilities: 26a3abef001b6533cf678d3eb38fd3f614b7872d
  "gRPC-C++": 2fa52b3141e7789a28a737f251e0c45b4cb20a87
  gRPC-Core: a27c294d6149e1c39a7d173527119cfbc3375ce4
  GTMAppAuth: f69bd07d68cd3b766125f7e072c45d7340dea0de
  GTMSessionFetcher: 5aea5ba6bd522a239e236100971f10cb71b96ab6
  leveldb-library: cc8b8f8e013647a295ad3f8cd2ddf49a6f19be19
  LicensePlist: 8a2019452d6a6376d2b5a40e4170af6b62f51ee5
  MetalPetal: 001513fa0b0f6d4f147aa2651d40c594f2eacb01
  nanopb: fad817b59e0457d11a5dfbde799381cd727c1275
  PhoneNumberKit: fca23e22dcd17f602577f177bdd502512190e52e
  PromisesObjC: f5707f49cb48b9636751c5b2e7d227e43fba9f47
  PromisesSwift: 9d77319bbe72ebf6d872900551f7eeba9bce2851
  RecaptchaInterop: 7d1a4a01a6b2cb1610a47ef3f85f0c411434cb21
  SDWebImage: 8a6b7b160b4d710e2a22b6900e25301075c34cb3
  VideoNetworkFramework: f13f054dd26a31954425b1f438132e939929e55d
  xaphodObjCUtils: c0ff01ae6577c9a30f0c0c52e5bcbf1ba568c02d

PODFILE CHECKSUM: 0e54a56940d477120952330cb7cc74a2348522f7

COCOAPODS: 1.15.2

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[cherylEnkidu]

Added back crashlytics since according to the flutter ticket linked, this also happens in crashlytics as well.like

crashlytics doesn't depend on grpc

[themiswang]

Remove Crashlytics, it has nothing to do with Crashlytics. We only record the crash.
Edit: seems like there is a timing difference on change :)

[bdaz]

I'm seeing lots of this too.

[jbwise]

In all of our crash reports, we see the offending thread looks like this (also attached):
crash.txt

#0	0x0000000104b29208 in grpc_event_engine::experimental::MemoryAllocator::MakeSlice(grpc_event_engine::experimental::MemoryRequest) at .../ios/Pods/gRPC-Core/include/grpc/event_engine/memory_allocator.h:137
#1	0x0000000104b29208 in flush_read_staging_buffer((anonymous namespace)::secure_endpoint*, unsigned char**, unsigned char**) at .../ios/Pods/gRPC-Core/src/core/handshaker/security/secure_endpoint.cc:229
#2	0x0000000104b29208 in on_read(void*, absl::lts_20240116::Status) at .../ios/Pods/gRPC-Core/src/core/handshaker/security/secure_endpoint.cc:311
#3	0x00000001049ecccc in exec_ctx_run(grpc_closure*) at .../ios/Pods/gRPC-Core/src/core/lib/iomgr/exec_ctx.cc:45
#4	0x00000001049ecccc in grpc_core::ExecCtx::Flush() at .../ios/Pods/gRPC-Core/src/core/lib/iomgr/exec_ctx.cc:84
#5	0x00000001048fe2d8 in grpc_core::ExecCtx::~ExecCtx() at .../ios/Pods/gRPC-C++/src/core/lib/iomgr/exec_ctx.h:132
#6	0x00000001049d7c28 in grpc_core::ExecCtx::~ExecCtx() at .../ios/Pods/gRPC-C++/src/core/lib/iomgr/exec_ctx.h:130
#7	0x00000001049d7c28 in grpc_event_engine::experimental::(anonymous namespace)::EventEngineEndpointWrapper::FinishPendingRead(absl::lts_20240116::Status) at .../ios/Pods/gRPC-Core/src/core/lib/iomgr/endpoint.cc:142
#8	0x00000001049d7fac in grpc_event_engine::experimental::(anonymous namespace)::EventEngineEndpointWrapper::Read(grpc_closure*, grpc_slice_buffer*, grpc_event_engine::experimental::EventEngine::Endpoint::ReadArgs const*):... at .../ios/Pods/gRPC-Core/src/core/lib/iomgr/endpoint.cc:113
#9	0x00000001049d7fac in decltype(std::declval<grpc_event_engine::experimental::(anonymous namespace)::EventEngineEndpointWrapper::Read(grpc_closure*, grpc_slice_buffer*, grpc_event_engine::experimental::EventEngine::Endpo... at .../ios/Pods/abseil/absl/base/internal/invoke.h:185
#10	0x00000001049d7fac in decltype(Invoker<grpc_event_engine::experimental::(anonymous namespace)::EventEngineEndpointWrapper::Read(grpc_closure*, grpc_slice_buffer*, grpc_event_engine::experimental::EventEngine::Endpoint::... at .../ios/Pods/abseil/absl/base/internal/invoke.h:212
#11	0x00000001049d7fac in void absl::lts_20240116::internal_any_invocable::InvokeR<void, grpc_event_engine::experimental::(anonymous namespace)::EventEngineEndpointWrapper::Read(grpc_closure*, grpc_slice_buffer*, grpc_event... at .../ios/Pods/abseil/absl/functional/any_invocable.h:132
#12	0x00000001049d7fac in void absl::lts_20240116::internal_any_invocable::LocalInvoker<false, void, grpc_event_engine::experimental::(anonymous namespace)::EventEngineEndpointWrapper::Read(grpc_closure*, grpc_slice_buffer*... at .../ios/Pods/abseil/absl/functional/any_invocable.h:310
#13	0x000000010493ae80 in absl::lts_20240116::internal_any_invocable::Impl<void (absl::lts_20240116::Status)>::operator()(absl::lts_20240116::Status) at .../ios/Pods/abseil/absl/functional/any_invocable.h:868
#14	0x000000010493ae80 in grpc_event_engine::experimental::CFStreamEndpointImpl::DoRead(absl::lts_20240116::AnyInvocable<void (absl::lts_20240116::Status)>, grpc_event_engine::experimental::SliceBuffer*) at .../ios/Pods/gRPC-Core/src/core/lib/event_engine/cf_engine/cfstream_endpoint.cc:302
#15	0x000000010493be30 in grpc_event_engine::experimental::CFStreamEndpointImpl::Read(absl::lts_20240116::AnyInvocable<void (absl::lts_20240116::Status)>, grpc_event_engine::experimental::SliceBuffer*, grpc_event_engine::ex... at .../ios/Pods/gRPC-Core/src/core/lib/event_engine/cf_engine/cfstream_endpoint.cc:269
#16	0x000000010493be30 in decltype(std::declval<grpc_event_engine::experimental::CFStreamEndpointImpl::Read(absl::lts_20240116::AnyInvocable<void (absl::lts_20240116::Status)>, grpc_event_engine::experimental::SliceBuffer*,... at .../ios/Pods/abseil/absl/base/internal/invoke.h:185
#17	0x000000010493be30 in decltype(Invoker<grpc_event_engine::experimental::CFStreamEndpointImpl::Read(absl::lts_20240116::AnyInvocable<void (absl::lts_20240116::Status)>, grpc_event_engine::experimental::SliceBuffer*, grpc... at .../ios/Pods/abseil/absl/base/internal/invoke.h:212
#18	0x000000010493be30 in void absl::lts_20240116::internal_any_invocable::InvokeR<void, grpc_event_engine::experimental::CFStreamEndpointImpl::Read(absl::lts_20240116::AnyInvocable<void (absl::lts_20240116::Status)>, grpc_... at .../ios/Pods/abseil/absl/functional/any_invocable.h:132
#19	0x000000010493be30 in void absl::lts_20240116::internal_any_invocable::RemoteInvoker<false, void, grpc_event_engine::experimental::CFStreamEndpointImpl::Read(absl::lts_20240116::AnyInvocable<void (absl::lts_20240116::St... at .../ios/Pods/abseil/absl/functional/any_invocable.h:368
#20	0x000000010493b644 in absl::lts_20240116::internal_any_invocable::Impl<void (absl::lts_20240116::Status)>::operator()(absl::lts_20240116::Status) at .../ios/Pods/abseil/absl/functional/any_invocable.h:868
#21	0x000000010493b644 in grpc_event_engine::experimental::PosixEngineClosure::Run() at .../ios/Pods/gRPC-C++/src/core/lib/event_engine/posix_engine/posix_engine_closure.h:49
#22	0x0000000104bb4e64 in grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::Step() at .../ios/Pods/gRPC-Core/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:580
#23	0x0000000104bb49cc in grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::ThreadBody() at .../ios/Pods/gRPC-Core/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:494
#24	0x0000000104bb5210 in grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::operator()(void*) const at .../ios/Pods/gRPC-Core/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:261
#25	0x0000000104bb5210 in grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::__invoke(void*) at .../ios/Pods/gRPC-Core/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:259
#26	0x0000000104b8af9c in grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const at .../ios/Pods/gRPC-Core/src/core/lib/gprpp/posix/thd.cc:148
#27	0x0000000104b8af9c in grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) at .../ios/Pods/gRPC-Core/src/core/lib/gprpp/posix/thd.cc:118
#28	(null) in _pthread_start ()
#29	(null) in thread_start ()

[xaphod]

Looking forward to an update here, as this is impacting our users.
Although the crash seems to have been caused by the update of building with the iOS 18 SDK in XCode 16, it isn't limited to crashes on iOS 18 - we have most of the crashes occurring on iOS 17.