[INFO] crate tobii-sys 0.2.0 is already in cache
[INFO] extracting crate tobii-sys 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tobii-sys/0.2.0
[INFO] extracting crate tobii-sys 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tobii-sys/0.2.0
[INFO] validating manifest of tobii-sys-0.2.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tobii-sys-0.2.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tobii-sys-0.2.0
[INFO] finished frobbing tobii-sys-0.2.0
[INFO] frobbed toml for tobii-sys-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tobii-sys/0.2.0/Cargo.toml
[INFO] started frobbing tobii-sys-0.2.0
[INFO] finished frobbing tobii-sys-0.2.0
[INFO] frobbed toml for tobii-sys-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tobii-sys/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tobii-sys-0.2.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tobii-sys/0.2.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8743463235f420fbfa604e1ff20f592a049736318f365679284ddb9c999fb2cf
[INFO] running `"docker" "start" "-a" "8743463235f420fbfa604e1ff20f592a049736318f365679284ddb9c999fb2cf"`
[INFO] [stderr]    Compiling tobii-sys v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0455]: native frameworks are only available on macOS targets
[INFO] [stderr]    --> src/lib.rs:257:1
[INFO] [stderr]     |
[INFO] [stderr] 257 | #[link(name = "StreamEngineClientKit", 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 `tobii-sys`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8743463235f420fbfa604e1ff20f592a049736318f365679284ddb9c999fb2cf"`
[INFO] running `"docker" "rm" "-f" "8743463235f420fbfa604e1ff20f592a049736318f365679284ddb9c999fb2cf"`
[INFO] [stdout] 8743463235f420fbfa604e1ff20f592a049736318f365679284ddb9c999fb2cf