Executing "step_script" stage of the job script Using docker image sha256:81f5749c9058a7284e6acd8e126f2b882765a17b9ead14422b51cde1a110b85c for docker:19.03.12 with digest docker@sha256:d41efe7ad0df5a709cfd4e627c7e45104f39bbc08b1b40d7fb718c562b3ce135 ... $ cp .ci/jsonWhitelist.txt build/external/. $ cp -r build/external checkFolder $ docker run -v "$(pwd)"/build/external:/checkFolder -t git-r3lab.uni.lu:4567/r3/apps/tailorbird/linkchecker docker: error during connect: Post http://docker:2375/v1.40/containers/create: dial tcp: lookup docker on 10.240.11.11:53: server misbehaving. See 'docker run --help'. Cleaning up file based variables ERROR: Job failed: exit code 125