[INFO] fetching crate mac-notification-sys 0.3.0...
[INFO] testing mac-notification-sys-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate mac-notification-sys 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mac-notification-sys 0.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mac-notification-sys 0.3.0
[INFO] finished tweaking crates.io crate mac-notification-sys 0.3.0
[INFO] tweaked toml for crates.io crate mac-notification-sys 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3de02592cda43a878cac2d7b9719df1409d7ccc060993ffb0d1efc28911cca34
[INFO] running `Command { std: "docker" "start" "-a" "3de02592cda43a878cac2d7b9719df1409d7ccc060993ffb0d1efc28911cca34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3de02592cda43a878cac2d7b9719df1409d7ccc060993ffb0d1efc28911cca34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de02592cda43a878cac2d7b9719df1409d7ccc060993ffb0d1efc28911cca34", kill_on_drop: false }`
[INFO] [stdout] 3de02592cda43a878cac2d7b9719df1409d7ccc060993ffb0d1efc28911cca34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 918af2500cb911937cc3aeda867349a978ca6fbd6a5ddaf646d577714a4dce02
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "918af2500cb911937cc3aeda867349a978ca6fbd6a5ddaf646d577714a4dce02", kill_on_drop: false }`
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling mac-notification-sys v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling objc v0.2.7
[INFO] [stderr]    Compiling objc_id v0.1.1
[INFO] [stderr]    Compiling objc-foundation v0.1.1
[INFO] [stdout] error[E0455]: native frameworks are only available on macOS targets
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-foundation-0.1.1/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[link(name = "Foundation", kind = "framework")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0455`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `objc-foundation`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "918af2500cb911937cc3aeda867349a978ca6fbd6a5ddaf646d577714a4dce02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "918af2500cb911937cc3aeda867349a978ca6fbd6a5ddaf646d577714a4dce02", kill_on_drop: false }`
[INFO] [stdout] 918af2500cb911937cc3aeda867349a978ca6fbd6a5ddaf646d577714a4dce02