Console Output

+ docker build -t 20dd18323c7f4a56932d26b6d77607c633114d4b -f scripts/docker/Dockerfile.gcc scripts/docker
#1 [internal] load .dockerignore
#1 sha256:40db041ddecbaeb22863322f0beee8b8015bec7c1acf234ee092e95fbf81cba5
#1 transferring context: 2B done
#1 DONE 0.0s

#2 [internal] load build definition from Dockerfile.gcc
#2 sha256:725a60df214844c8ad7e4de02f1769d4adccbd36e7b4999a0448230da47ab312
#2 transferring dockerfile: 1.75kB done
#2 DONE 0.0s

#3 [internal] load metadata for docker.io/library/ubuntu:20.04
#3 sha256:8e67b796a66f85f06793e026943184e32d365c77929e94d2ac98b34a1e1cb30e
#3 DONE 0.0s

#6 [1/5] FROM docker.io/library/ubuntu:20.04
#6 sha256:243f75845650c92150b34967f79a539dee49ba028b719b1a41e64f43abcdcac5
#6 DONE 0.0s

#8 [4/5] RUN KEYDUMP_URL=https://cloud.cees.ornl.gov/download &&     KEYDUMP_FILE=keydump &&     wget --quiet ${KEYDUMP_URL}/${KEYDUMP_FILE} &&     wget --quiet ${KEYDUMP_URL}/${KEYDUMP_FILE}.sig &&     gpg --import ${KEYDUMP_FILE} &&     gpg --verify ${KEYDUMP_FILE}.sig ${KEYDUMP_FILE} &&     rm ${KEYDUMP_FILE}*
#8 sha256:035b84f81dcb1fbe0f758c815269ed6a56dc6c44764865d28eac5764fe2cac95
#8 CACHED

#4 [3/5] RUN echo "deb http://dk.archive.ubuntu.com/ubuntu/ xenial main" >> /etc/apt/sources.list &&     echo "deb http://dk.archive.ubuntu.com/ubuntu/ xenial universe" >> /etc/apt/sources.list &&     apt-get update && apt-get install -y g++-8 &&     update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 8 &&     update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 8 &&     apt-get clean && rm -rf /var/lib/apt/lists/*
#4 sha256:648562ad4fcfbc4cb8a5014f4428c2d07061154f853f1e27f22af9ca976a3035
#4 CACHED

#5 [2/5] RUN apt-get update && apt-get upgrade -y && apt-get install -y     build-essential     wget     git     bc     ccache     &&     apt-get clean && rm -rf /var/lib/apt/lists/*
#5 sha256:244cba9621c788fd67785a1d49ac9ec2fbc2026a48bf412ee2cf59bd974486bf
#5 CACHED

#7 [5/5] RUN CMAKE_URL=https://github.com/Kitware/CMake/releases/download/v3.16.8 &&     CMAKE_SCRIPT=cmake-3.16.8-Linux-x86_64.sh &&     CMAKE_SHA256=cmake-3.16.8-SHA-256.txt &&     wget --quiet ${CMAKE_URL}/${CMAKE_SHA256} &&     wget --quiet ${CMAKE_URL}/${CMAKE_SHA256}.asc &&     wget --quiet ${CMAKE_URL}/${CMAKE_SCRIPT} &&     gpg --verify ${CMAKE_SHA256}.asc ${CMAKE_SHA256} &&     grep -i ${CMAKE_SCRIPT} ${CMAKE_SHA256} | sed -e s/linux/Linux/ | sha256sum --check &&     mkdir -p /opt/cmake &&     sh ${CMAKE_SCRIPT} --skip-license --prefix=/opt/cmake &&     rm cmake*
#7 sha256:f39f048c28c6b89431d733a6d575d4533501e1152fa6ffa79fbf8559b4150f40
#7 CACHED

#9 exporting to image
#9 sha256:87b568a57660120aeaf56a2428e16e7e92bce4894e6bf3ee5975fbad5000aa51
#9 exporting layers done
#9 writing image sha256:b8a8945b4a09a43c3daeb2e23724012c1c87a6761d46f57662b1655e8a2209d9 done
#9 naming to docker.io/library/20dd18323c7f4a56932d26b6d77607c633114d4b:latest done
#9 DONE 0.0s