$ setenv DOCKER_BUILDKIT 1
$ docker build -t nasqueron/phabricator .                                                                                                         
[+] Building 62.4s (10/10) FINISHED                                                                                                               
 => [internal] load build definition from Dockerfile                                                                                          0.1s
 => => transferring dockerfile: 920B                                                                                                          0.1s
 => [internal] load .dockerignore                                                                                                             0.1s
 => => transferring context: 2B                                                                                                               0.0s
 => [internal] load metadata for docker.io/nasqueron/nginx-php7-fpm:latest                                                                    0.0s
 => [1/5] FROM docker.io/nasqueron/nginx-php7-fpm                                                                                             0.2s
 => [internal] load build context                                                                                                             0.2s
 => => transferring context: 1.21MB                                                                                                           0.2s
 => [2/5] RUN apt-get update && apt-get install -y             mercurial subversion python3-pygments openssh-client             mariadb-cli  18.9s
 => [3/5] RUN cd /opt &&     git clone https://github.com/phacility/libphutil.git &&     git clone https://github.com/phacility/arcanist.gi  38.3s
 => [4/5] COPY files /                                                                                                                        0.1s
 => [5/5] WORKDIR /opt/phabricator                                                                                                            0.0s
 => exporting to image                                                                                                                        4.4s
 => => exporting layers                                                                                                                       4.4s
 => => writing image sha256:8e18d25e04bce86f190f7843cce916c9a527c1c5f1a8868010f45f5f49c675a9                                                  0.0s
 => => naming to docker.io/nasqueron/phabricator                                                                                              0.0s