Nick Wellnhofer created an issue:
Since about a week, libxml2's GitLab CI setup stopped working with AddressSanitizer, see for example https://gitlab.gnome.org/nwellnhof/libxml2/-/jobs/609397. The error message is unhelpful, but these problems are typically caused by containers running without ptrace capability. Was there a change recently? Is it possible to support AddressSanitizer again?