anchor.diff:      cd .. && \
       rm -rf v${PROTOC_VERSION}.zip protobuf-${PROTOC_VERSION}
   
  -RUN curl -L -O https://github.com/AdoptOpenJDK/openjdk11-binaries/releases/download/jdk-11.0.3%2B7/OpenJDK11U-jdk_x64_linux_hotspot_11.0.3_7.tar.gz && \
  -    tar -xf OpenJDK11U-jdk_x64_linux_hotspot_11.0.3_7.tar.gz && \
  -    mv jdk-11.0.3+7 /usr/local/lib/ && \
  -    rm OpenJDK11U-jdk_x64_linux_hotspot_11.0.3_7.tar.gz
  -
  -ENV PATH /usr/local/lib/jdk-11.0.3+7/bin:$PATH
  -
  -RUN java -version
  -
   ARG SWIFT_PLATFORM=ubuntu18.04
   ARG SWIFT_BRANCH=swift-5.0.1-release
   ARG SWIFT_VERSION=swift-5.0.1-RELEASE
  
positive.code:     chmod -R o+r /usr/lib/swift
  
  RUN swift --version
  
  ENV GOLANG_VERSION 1.11.9
  
  RUN curl -O -L https://golang.org/dl/go${GOLANG_VERSION}.linux-amd64.tar.gz && \
      echo "e88aa3e39104e3ba6a95a4e05629348b4a1ec82791fb3c941a493ca349730608 *go${GOLANG_VERSION}.linux-amd64.tar.gz" | sha256sum -c - && \
      tar -C /usr/local -xzf go${GOLANG_VERSION}.linux-amd64.tar.gz && \
      rm go${GOLANG_VERSION}.linux-amd64.tar.gz
  
  ENV GOPATH $HOME
  ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
  
  RUN mkdir -p "$GOPATH/src" "$GOPATH/bin" && \
      chmod -R 777 "$GOPATH"
  
  RUN go version
  
negative.code:       clang \
        curl \
        git \
        gnupg \
        libatomic1 \
        libbsd0 \
        libc6-dev \
  