[INFO] cloning repository https://github.com/andrew-d/rust-objc-declare-class
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrew-d/rust-objc-declare-class" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-d%2Frust-objc-declare-class"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-d%2Frust-objc-declare-class'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e2f5bb03133e79af3a430cbfac4e1b7ca34a85ca
[INFO] testing andrew-d/rust-objc-declare-class against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-d%2Frust-objc-declare-class" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrew-d/rust-objc-declare-class on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/andrew-d/rust-objc-declare-class
[INFO] finished tweaking git repo https://github.com/andrew-d/rust-objc-declare-class
[INFO] tweaked toml for git repo https://github.com/andrew-d/rust-objc-declare-class written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/andrew-d/rust-objc-declare-class already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5273a45c62a0b371ee569ecb19a29e2b9b3e3cda46cf06fd750f0ddfd63844a1
[INFO] running `"docker" "start" "-a" "5273a45c62a0b371ee569ecb19a29e2b9b3e3cda46cf06fd750f0ddfd63844a1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling objctest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.5
[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/rustwide/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" "5273a45c62a0b371ee569ecb19a29e2b9b3e3cda46cf06fd750f0ddfd63844a1"`
[INFO] running `"docker" "rm" "-f" "5273a45c62a0b371ee569ecb19a29e2b9b3e3cda46cf06fd750f0ddfd63844a1"`
[INFO] [stdout] 5273a45c62a0b371ee569ecb19a29e2b9b3e3cda46cf06fd750f0ddfd63844a1