buildx failed with: ERROR: failed to solve: process "/bin/sh -c mkdir /tmp/php && cd /tmp/php && curl -L -O https://github.com/phpbrew/phpbrew/raw/master/phpbrew && chmod +x phpbrew && mv phpbrew /usr/local/bin/phpbrew && mkdir -p /opt/phpbrew && phpbrew init --root=/opt/phpbrew && echo \"source /root/.phpbrew/bashrc\" >> ~/.bashrc" did not complete successfully: exit code: 255