[INFO] fetching crate CoreFoundation-sys 0.1.4...
[INFO] testing CoreFoundation-sys-0.1.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate CoreFoundation-sys 0.1.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate CoreFoundation-sys 0.1.4 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate CoreFoundation-sys 0.1.4
[INFO] finished tweaking crates.io crate CoreFoundation-sys 0.1.4
[INFO] tweaked toml for crates.io crate CoreFoundation-sys 0.1.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91ab5ae02ab73dc4895649f2f3b2545db6894001a0b9d6915f0470ed8518d631
[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" "91ab5ae02ab73dc4895649f2f3b2545db6894001a0b9d6915f0470ed8518d631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91ab5ae02ab73dc4895649f2f3b2545db6894001a0b9d6915f0470ed8518d631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ab5ae02ab73dc4895649f2f3b2545db6894001a0b9d6915f0470ed8518d631", kill_on_drop: false }`
[INFO] [stdout] 91ab5ae02ab73dc4895649f2f3b2545db6894001a0b9d6915f0470ed8518d631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", 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] 36fa62bf6f2d655830e00da8a0f701b1fc9e44b58a3df9efda84f45181a1e6d3
[INFO] running `Command { std: "docker" "start" "-a" "36fa62bf6f2d655830e00da8a0f701b1fc9e44b58a3df9efda84f45181a1e6d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling CoreFoundation-sys v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling mach v0.1.2
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/runloop.rs:127:48
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub const kCFRunLoopEntry: CFRunLoopActivity = (1 << 0);
[INFO] [stdout]     |                                                ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/runloop.rs:128:55
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub const kCFRunLoopBeforeTimers: CFRunLoopActivity = (1 << 1);
[INFO] [stdout]     |                                                       ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/runloop.rs:129:56
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub const kCFRunLoopBeforeSources: CFRunLoopActivity = (1 << 2);
[INFO] [stdout]     |                                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/runloop.rs:130:56
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub const kCFRunLoopBeforeWaiting: CFRunLoopActivity = (1 << 5);
[INFO] [stdout]     |                                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/runloop.rs:131:55
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub const kCFRunLoopAfterWaiting: CFRunLoopActivity = (1 << 6);
[INFO] [stdout]     |                                                       ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/runloop.rs:132:47
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub const kCFRunLoopExit: CFRunLoopActivity = (1 << 7);
[INFO] [stdout]     |                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: native frameworks are only available on macOS targets
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `CoreFoundation-sys` due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "36fa62bf6f2d655830e00da8a0f701b1fc9e44b58a3df9efda84f45181a1e6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36fa62bf6f2d655830e00da8a0f701b1fc9e44b58a3df9efda84f45181a1e6d3", kill_on_drop: false }`
[INFO] [stdout] 36fa62bf6f2d655830e00da8a0f701b1fc9e44b58a3df9efda84f45181a1e6d3