[INFO] crate mac-notification-sys 0.3.0 is already in cache
[INFO] extracting crate mac-notification-sys 0.3.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/mac-notification-sys/0.3.0
[INFO] extracting crate mac-notification-sys 0.3.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mac-notification-sys/0.3.0
[INFO] validating manifest of mac-notification-sys-0.3.0 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 mac-notification-sys-0.3.0 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 mac-notification-sys-0.3.0
[INFO] finished frobbing mac-notification-sys-0.3.0
[INFO] frobbed toml for mac-notification-sys-0.3.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/mac-notification-sys/0.3.0/Cargo.toml
[INFO] started frobbing mac-notification-sys-0.3.0
[INFO] finished frobbing mac-notification-sys-0.3.0
[INFO] frobbed toml for mac-notification-sys-0.3.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mac-notification-sys/0.3.0/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 mac-notification-sys-0.3.0 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/mac-notification-sys/0.3.0:/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] 3bb0f90cac6cf29c73c56d8024484c6e50d8aa8332fb693ebfc810c47e2f897c
[INFO] running `"docker" "start" "-a" "3bb0f90cac6cf29c73c56d8024484c6e50d8aa8332fb693ebfc810c47e2f897c"`
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling mac-notification-sys v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.6
[INFO] [stderr]    Compiling objc_id v0.1.1
[INFO] [stderr]    Compiling objc-foundation v0.1.1
[INFO] [stderr] error[E0455]: native frameworks are only available on macOS targets
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-foundation-0.1.1/src/lib.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[link(name = "Foundation", kind = "framework")]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0455`.
[INFO] [stderr] error: Could not compile `objc-foundation`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3bb0f90cac6cf29c73c56d8024484c6e50d8aa8332fb693ebfc810c47e2f897c"`
[INFO] running `"docker" "rm" "-f" "3bb0f90cac6cf29c73c56d8024484c6e50d8aa8332fb693ebfc810c47e2f897c"`
[INFO] [stdout] 3bb0f90cac6cf29c73c56d8024484c6e50d8aa8332fb693ebfc810c47e2f897c