[INFO] fetching crate CoreFoundation-sys 0.1.4...
[INFO] testing CoreFoundation-sys-0.1.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate CoreFoundation-sys 0.1.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate CoreFoundation-sys 0.1.4 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55595e04f0378583a28906107fadcd937f14ce1f78c1755e06e975a4b8b4c1ae
[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" "55595e04f0378583a28906107fadcd937f14ce1f78c1755e06e975a4b8b4c1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55595e04f0378583a28906107fadcd937f14ce1f78c1755e06e975a4b8b4c1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55595e04f0378583a28906107fadcd937f14ce1f78c1755e06e975a4b8b4c1ae", kill_on_drop: false }`
[INFO] [stdout] 55595e04f0378583a28906107fadcd937f14ce1f78c1755e06e975a4b8b4c1ae
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11227b14075f1f32f6f452805c71d176027f2d8daac565994015fcaa900453da
[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" "11227b14075f1f32f6f452805c71d176027f2d8daac565994015fcaa900453da", kill_on_drop: false }`
[INFO] [stderr]    Compiling CoreFoundation-sys v0.1.4 (/opt/rustwide/workdir)
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "11227b14075f1f32f6f452805c71d176027f2d8daac565994015fcaa900453da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11227b14075f1f32f6f452805c71d176027f2d8daac565994015fcaa900453da", kill_on_drop: false }`
[INFO] [stdout] 11227b14075f1f32f6f452805c71d176027f2d8daac565994015fcaa900453da