buildx failed with: ERROR: failed to solve: process "/bin/sh -c mkdir -p /usr/local/var/singularity/mnt && mkdir -p $GOPATH/src/github.com/sylabs && cd $GOPATH/src/github.com/sylabs && wget -qO- https://github.com/sylabs/singularity/releases/download/v${SINGULARITY_VERSION}/singularity-ce-${SINGULARITY_VERSION}.tar.gz | tar xzv && cd singularity-ce-${SINGULARITY_VERSION} && ./mconfig -p /usr/local/singularity && make -C builddir && make -C builddir install" did not complete successfully: exit code: 2