anchor.diff:  WORKDIR /tmp
   COPY dist-various-2/shared.sh /tmp/
   COPY dist-various-2/build-cloudabi-toolchain.sh /tmp/
  -RUN /tmp/build-cloudabi-toolchain.sh aarch64-unknown-cloudabi
  -RUN /tmp/build-cloudabi-toolchain.sh i686-unknown-cloudabi
   RUN /tmp/build-cloudabi-toolchain.sh x86_64-unknown-cloudabi
   COPY dist-various-2/build-fuchsia-toolchain.sh /tmp/
   RUN /tmp/build-fuchsia-toolchain.sh
  
positive.code: ENV TARGETS=$TARGETS,wasm32-unknown-unknown
  ENV TARGETS=$TARGETS,x86_64-sun-solaris
  ENV TARGETS=$TARGETS,x86_64-unknown-linux-gnux32
  ENV TARGETS=$TARGETS,aarch64-unknown-cloudabi
  # FIXME(EdSchouten): Enable ARMv7 support once libc ≥0.2.37 has been merged.
  # ENV TARGETS=$TARGETS,armv7-unknown-cloudabi-eabihf
  ENV TARGETS=$TARGETS,i686-unknown-cloudabi
  ENV TARGETS=$TARGETS,x86_64-unknown-cloudabi
  
  ENV RUST_CONFIGURE_ARGS --target=$TARGETS --enable-extended
  
negative.code: # FIXME(EdSchouten): Remove this once cc ≥1.0.4 has been merged. It can
  # automatically pick the right compiler path.
  ENV \
      AR_x86_64_unknown_cloudabi=x86_64-unknown-cloudabi-ar \
      CC_x86_64_unknown_cloudabi=x86_64-unknown-cloudabi-clang \
      CXX_x86_64_unknown_cloudabi=x86_64-unknown-cloudabi-clang++
  