buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c . ${HOME}/setup_env.sh && export PATH=/usr/lib/llvm-20/bin:${PATH} && spack compiler find /usr/lib/llvm-20/bin && OCI_PASSWORD=$(cat /run/secrets/ocipass) spack external find rust --not-buildable && OCI_PASSWORD=$(cat /run/secrets/ocipass) spack concretize --reuse" did not complete successfully: exit code: 1

The run was canceled by @madbaron.