Flutter: Unhandled exception during pub get

My snap is no longer able to build… seems to fail during the pub get part of the build process:

Unhandled exception:
Stack Overflow
#0      new List.of (dart:core-patch/array_patch.dart:49:3)
#1      new List.from (dart:core-patch/array_patch.dart:37:19)
#2      new List.unmodifiable (dart:core-patch/array_patch.dart:71:24)
#3      new Chain (package:stack_trace/src/chain.dart:191:44)
#4      _Node.toChain (package:stack_trace/src/stack_zone_specification.dart:261:12)
#5      StackZoneSpecification.chainFor (package:stack_trace/src/stack_zone_specification.dart:106:37)
#6      StackZoneSpecification._handleUncaughtError (package:stack_trace/src/stack_zone_specification.dart:151:22)
#7      _Zone._processUncaughtError (dart:async/zone.dart:1073:14)
#8      _CustomZone.handleUncaughtError (dart:async/zone.dart:1277:5)
#9      _CustomZone.runGuarded (dart:async/zone.dart:1203:7)
#10     _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#11     _StreamController.close (dart:async/stream_controller.dart:630:5)
#12     _RawSecureSocket._close (dart:io/secure_socket.dart:721:17)
#13     _RawSecureSocket.shutdown (dart:io/secure_socket.dart:743:9)
#14     _RawSecureSocket.close (dart:io/secure_socket.dart:699:5)
#15     _Socket._closeRawSocket (dart:io-patch/socket_patch.dart:2296:9)
#16     _Socket.destroy (dart:io-patch/socket_patch.dart:2223:5)
#17     _HttpClientConnection.destroyFromExternal (dart:_http/http_impl.dart:2238:13)
#18     _ConnectionTarget.close (dart:_http/http_impl.dart:2403:11)
#19     _HttpClient._closeConnections (dart:_http/http_impl.dart:2839:24)
#20     _HttpClient._connectionsChanged (dart:_http/http_impl.dart:2833:7)
#21     _HttpClient._connectionClosed (dart:_http/http_impl.dart:2813:7)
#22     _HttpClientConnection.close (dart:_http/http_impl.dart:2243:17)
#23     new _HttpClientConnection.<anonymous closure> (dart:_http/http_impl.dart:2083:7)
#24     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:208:15)
#25     StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:116:48)
#26     _rootRun (dart:async/zone.dart:1383:47)
#27     _CustomZone.runGuarded (dart:async/zone.dart:1201:7)
#28     _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#29     _StreamController.close (dart:async/stream_controller.dart:630:5)
#30     _HttpParser._reportHttpError (dart:_http/http_parser.dart:1170:17)
#31     _HttpParser._onDone (dart:_http/http_parser.dart:895:9)
#32     StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:208:15)
#33     StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:116:48)
#34     _rootRun (dart:async/zone.dart:1383:47)
#35     _CustomZone.runGuarded (dart:async/zone.dart:1201:7)
#36     _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#37     _StreamController.close (dart:async/stream_controller.dart:630:5)
#38     _Socket._onDone (dart:io-patch/socket_patch.dart:2339:19)
...
...
#9942   _CustomZone.runGuarded (dart:async/zone.dart:1201:7)
#9943   _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#9944   _StreamController.close (dart:async/stream_controller.dart:630:5)
#9945   _HttpParser._reportHttpError (dart:_http/http_parser.dart:1170:17)
#9946   _HttpParser._onDone (dart:_http/http_parser.dart:895:9)
#9947   StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:208:15)
#9948   StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:116:48)
#9949   _rootRun (dart:async/zone.dart:1383:47)
#9950   _CustomZone.runGuarded (dart:async/zone.dart:1201:7)
#9951   _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#9952   _StreamController.close (dart:async/stream_controller.dart:630:5)
#9953   _Socket._onDone (dart:io-patch/socket_patch.dart:2339:19)
#9954   StackZoneSpecification._run (package:stack_trace/src/stack_zone_specification.dart:208:15)
#9955   StackZoneSpecification._registerCallback.<anonymous closure> (package:stack_trace/src/stack_zone_specification.dart:116:48)
#9956   _rootRun (dart:async/zone.dart:1391:13)
#9957   _CustomZone.runGuarded (dart:async/zone.dart:1201:7)
#9958   _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#9959   _StreamController.close (dart:async/stream_controller.dart:630:5)
#9960   _RawSecureSocket._close (dart:io/secure_socket.dart:721:17)
#9961   _RawSecureSocket.shutdown (dart:io/secure_socket.dart:743:9)
#9962   _RawSecureSocket.close (dart:io/secure_socket.dart:699:5)
#9963   _Socket._closeRawSocket (dart:io-patch/socket_patch.dart:2296:9)
#9964   _Socket.destroy (dart:io-patch/socket_patch.dart:2223:5)
#9965   _HttpClientConnection.destroyFromExternal (dart:_http/http_impl.dart:2238:13)
#9966   _ConnectionTarget.close (dart:_http/http_impl.dart:2403:11)
#9967   _HttpClient._closeConnections (dart:_http/http_impl.dart:2839:24)
#9968   _HttpClient.close (dart:_http/http_impl.dart:2626:5)
#9969   IOClient.close (package:http/src/io_client.dart:101:15)
#9970   _PubHttpClient.close (package:pub/src/http.dart:154:26)
#9971   RetryClient.close (package:http/retry.dart:148:26)
#9972   _ThrowingClient.close (package:pub/src/http.dart:235:26)
#9973   _ThrottleClient.close (package:pub/src/http.dart:398:26)
#9974   PubCommand.run (package:pub/src/command.dart:241:18)
#9975   _FutureListener.handleValue (dart:async/future_impl.dart:147:18)
#9976   Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:766:45)
#9977   Future._propagateToListeners (dart:async/future_impl.dart:795:13)
#9978   Future._asyncCompleteWithValue.<anonymous closure> (dart:async/future_impl.dart:639:7)
#9979   _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)
#9980   _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:193:5).
pub get failed (255; #9980   _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:193:5).)
flutter pub get
Failed to run 'flutter pub get' for 'nyrna': Exited with code 255.
Verify that the part is using the correct parameters and try again.
Build failed
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/lpbuildd/target/build_snap.py", line 204, in run
    self.build()
  File "/usr/lib/python3/dist-packages/lpbuildd/target/build_snap.py", line 188, in build
    self.run_build_command(["snapcraft"], cwd=output_path, env=env)
  File "/usr/lib/python3/dist-packages/lpbuildd/target/operation.py", line 46, in run_build_command
    return self.backend.run(args, cwd=cwd, env=full_env, **kwargs)
  File "/usr/lib/python3/dist-packages/lpbuildd/target/lxd.py", line 518, in run
    subprocess.check_call(cmd, **kwargs)
  File "/usr/lib/python3.8/subprocess.py", line 364, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['lxc', 'exec', 'lp-bionic-amd64', '--env', 'LANG=C.UTF-8', '--env', 'SHELL=/bin/sh', '--env', 'http_proxy=http://10.10.10.1:8222/', '--env', 'https_proxy=http://10.10.10.1:8222/', '--env', 'GIT_PROXY_COMMAND=/usr/local/bin/lpbuildd-git-proxy', '--env', 'SNAPPY_STORE_NO_CDN=1', '--env', 'SNAPCRAFT_BUILD_INFO=1', '--env', 'SNAPCRAFT_IMAGE_INFO={"build-request-id": "lp-76216486", "build-request-timestamp": "2022-12-19T20:23:00Z", "build_url": "https://launchpad.net/~build.snapcraft.io/+snap/b26b9ea9457ff5e4502613d6ceefc50a/+build/1973812"}', '--env', 'SNAPCRAFT_BUILD_ENVIRONMENT=host', '--env', 'SNAPCRAFT_BUILD_FOR=amd64', '--', '/bin/sh', '-c', 'cd /build/nyrna && linux64 snapcraft']' returned non-zero exit status 2.
Revoking proxy token...
RUN: /usr/share/launchpad-buildd/bin/in-target scan-for-processes --backend=lxd --series=bionic --arch=amd64 SNAPBUILD-1973812
Scanning for processes to kill in build SNAPBUILD-1973812