[INFO] cloning repository https://github.com/andrew-d/rust-objc-declare-class
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-d%2Frust-objc-declare-class'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2f5bb03133e79af3a430cbfac4e1b7ca34a85ca
[INFO] testing andrew-d/rust-objc-declare-class against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-d%2Frust-objc-declare-class" "/workspace/builds/worker-107/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-107/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrew-d/rust-objc-declare-class on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-107/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f9b9942e7858bcb42d772f539a4cf97733f8ffca43b2e87226c517814b83d07
[INFO] running `Command { std: "docker" "start" "-a" "4f9b9942e7858bcb42d772f539a4cf97733f8ffca43b2e87226c517814b83d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f9b9942e7858bcb42d772f539a4cf97733f8ffca43b2e87226c517814b83d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f9b9942e7858bcb42d772f539a4cf97733f8ffca43b2e87226c517814b83d07", kill_on_drop: false }`
[INFO] [stdout] 4f9b9942e7858bcb42d772f539a4cf97733f8ffca43b2e87226c517814b83d07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26d82225188e93fc7d70dc0e621b6dc8f78c27f17ea8690d4b238f6a49fa1ee8
[INFO] running `Command { std: "docker" "start" "-a" "26d82225188e93fc7d70dc0e621b6dc8f78c27f17ea8690d4b238f6a49fa1ee8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling objctest v0.1.0 (/opt/rustwide/workdir)
[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] [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` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "26d82225188e93fc7d70dc0e621b6dc8f78c27f17ea8690d4b238f6a49fa1ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26d82225188e93fc7d70dc0e621b6dc8f78c27f17ea8690d4b238f6a49fa1ee8", kill_on_drop: false }`
[INFO] [stdout] 26d82225188e93fc7d70dc0e621b6dc8f78c27f17ea8690d4b238f6a49fa1ee8