[INFO] crate CoreFoundation-sys 0.1.4 is already in cache
[INFO] extracting crate CoreFoundation-sys 0.1.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/CoreFoundation-sys/0.1.4
[INFO] extracting crate CoreFoundation-sys 0.1.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/CoreFoundation-sys/0.1.4
[INFO] validating manifest of CoreFoundation-sys-0.1.4 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of CoreFoundation-sys-0.1.4 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing CoreFoundation-sys-0.1.4
[INFO] finished frobbing CoreFoundation-sys-0.1.4
[INFO] frobbed toml for CoreFoundation-sys-0.1.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/CoreFoundation-sys/0.1.4/Cargo.toml
[INFO] started frobbing CoreFoundation-sys-0.1.4
[INFO] finished frobbing CoreFoundation-sys-0.1.4
[INFO] frobbed toml for CoreFoundation-sys-0.1.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/CoreFoundation-sys/0.1.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing CoreFoundation-sys-0.1.4 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/CoreFoundation-sys/0.1.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] dd5849779a08cc14c3a46e455be8995fcc55bb6cb93489c6def8efc9ffee00f8
[INFO] running `"docker" "start" "-a" "dd5849779a08cc14c3a46e455be8995fcc55bb6cb93489c6def8efc9ffee00f8"`
[INFO] [stderr]    Compiling CoreFoundation-sys v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]    Compiling mach v0.1.2
[INFO] [stderr] error: native frameworks are only available on macOS targets
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `CoreFoundation-sys`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "dd5849779a08cc14c3a46e455be8995fcc55bb6cb93489c6def8efc9ffee00f8"`
[INFO] running `"docker" "rm" "-f" "dd5849779a08cc14c3a46e455be8995fcc55bb6cb93489c6def8efc9ffee00f8"`
[INFO] [stdout] dd5849779a08cc14c3a46e455be8995fcc55bb6cb93489c6def8efc9ffee00f8