`dci-macm2-build-072` No module named '_cffi_backend'

[matouskozak]

Build

https://dev.azure.com/dnceng-public/public/_build/results?buildId=983276

Build leg reported

iOS simulator - arm64

Pull Request

dotnet/runtime#113313

Known issue core information

Fill out the known issue JSON section by following the step by step documentation on how to create a known issue

 {
    "ErrorMessage" : "ModuleNotFoundError: No module named '_cffi_backend'",
    "BuildRetry": false,
    "ExcludeConsoleLog": false
 }

@dotnet/dnceng

Release Note Category

• Feature changes/additions
• Bug fixes
• Internal Infrastructure Improvements

Release Note Description

Additional information about the issue reported

Traceback (most recent call last):
  File "/tmp/helix/working/A6700925/w/AE9C09CB/u/xharness-event-processor.py", line 8, in <module>
    from helix.public import request_reboot, request_infra_retry, send_metric, send_metrics
  File "/etc/helix/scripts/helix/public/__init__.py", line 5, in <module>
    import helix.event
  File "/etc/helix/scripts/helix/event.py", line 7, in <module>
    import helix.logs
  File "/etc/helix/scripts/helix/logs.py", line 11, in <module>
    from helix.azure_utils import get_auth_credential
  File "/etc/helix/scripts/helix/azure_utils.py", line 2, in <module>
    from azure.identity import CertificateCredential, ClientAssertionCredential, CredentialUnavailableError, ManagedIdentityCredential
  File "/etc/helix/scripts/azure/identity/__init__.py", line 10, in <module>
    from ._credentials import (
  File "/etc/helix/scripts/azure/identity/_credentials/__init__.py", line 5, in <module>
    from .authorization_code import AuthorizationCodeCredential
  File "/etc/helix/scripts/azure/identity/_credentials/authorization_code.py", line 9, in <module>
    from .._internal.aad_client import AadClient
  File "/etc/helix/scripts/azure/identity/_internal/__init__.py", line 5, in <module>
    from .aad_client import AadClient
  File "/etc/helix/scripts/azure/identity/_internal/aad_client.py", line 11, in <module>
    from .aad_client_base import AadClientBase
  File "/etc/helix/scripts/azure/identity/_internal/aad_client_base.py", line 20, in <module>
    from .aadclient_certificate import AadClientCertificate
  File "/etc/helix/scripts/azure/identity/_internal/aadclient_certificate.py", line 7, in <module>
    from cryptography import x509
  File "/etc/helix/scripts/cryptography/x509/__init__.py", line 7, in <module>
    from cryptography.x509 import certificate_transparency, verification
  File "/etc/helix/scripts/cryptography/x509/certificate_transparency.py", line 8, in <module>
    from cryptography.hazmat.bindings._rust import x509 as rust_x509
ModuleNotFoundError: No module named '_cffi_backend'

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=983276
Error message validated: [ModuleNotFoundError: No module named '_cffi_backend']
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 4/1/2025 8:32:37 AM UTC

Report

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	0

[missymessa]

@matouskozak is this still an issue?