[INFO] fetching crate barfly 0.1.3...
[INFO] testing barfly-0.1.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate barfly 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate barfly 0.1.3 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 barfly 0.1.3
[INFO] finished tweaking crates.io crate barfly 0.1.3
[INFO] tweaked toml for crates.io crate barfly 0.1.3 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf82742692af20931e82ba3470cf911f6493a42de2ebe6b6c32feb99ce377c13
[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" "cf82742692af20931e82ba3470cf911f6493a42de2ebe6b6c32feb99ce377c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf82742692af20931e82ba3470cf911f6493a42de2ebe6b6c32feb99ce377c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf82742692af20931e82ba3470cf911f6493a42de2ebe6b6c32feb99ce377c13", kill_on_drop: false }`
[INFO] [stdout] cf82742692af20931e82ba3470cf911f6493a42de2ebe6b6c32feb99ce377c13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c880b4e7e764c46ae340c4ce3ecb4d1df7cb92cfd7df5d7ac6010f2d9ec7e412
[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" "c880b4e7e764c46ae340c4ce3ecb4d1df7cb92cfd7df5d7ac6010f2d9ec7e412", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling core-foundation-sys v0.8.2
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.7
[INFO] [stderr]    Compiling objc_id v0.1.1
[INFO] [stderr]    Compiling core-foundation v0.9.1
[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" "c880b4e7e764c46ae340c4ce3ecb4d1df7cb92cfd7df5d7ac6010f2d9ec7e412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c880b4e7e764c46ae340c4ce3ecb4d1df7cb92cfd7df5d7ac6010f2d9ec7e412", kill_on_drop: false }`
[INFO] [stdout] c880b4e7e764c46ae340c4ce3ecb4d1df7cb92cfd7df5d7ac6010f2d9ec7e412