[INFO] fetching crate colorpal 0.0.1...
[INFO] testing colorpal-0.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate colorpal 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate colorpal 0.0.1 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 colorpal 0.0.1
[INFO] finished tweaking crates.io crate colorpal 0.0.1
[INFO] tweaked toml for crates.io crate colorpal 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate colorpal 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dominant_color v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17547584390a9f6fb2290a59d2d94e00fe4132994f013a51fc2177e401b84478
[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" "17547584390a9f6fb2290a59d2d94e00fe4132994f013a51fc2177e401b84478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17547584390a9f6fb2290a59d2d94e00fe4132994f013a51fc2177e401b84478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17547584390a9f6fb2290a59d2d94e00fe4132994f013a51fc2177e401b84478", kill_on_drop: false }`
[INFO] [stdout] 17547584390a9f6fb2290a59d2d94e00fe4132994f013a51fc2177e401b84478
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21426a1d7d341eac7690aa5d7322d7e1193813f4343d6802dc0ee703a7591ca4
[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" "21426a1d7d341eac7690aa5d7322d7e1193813f4343d6802dc0ee703a7591ca4", kill_on_drop: false }`
[INFO] [stderr]    Compiling dominant_color v0.3.0
[INFO] [stderr]    Compiling colorpal v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "21426a1d7d341eac7690aa5d7322d7e1193813f4343d6802dc0ee703a7591ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21426a1d7d341eac7690aa5d7322d7e1193813f4343d6802dc0ee703a7591ca4", kill_on_drop: false }`
[INFO] [stdout] 21426a1d7d341eac7690aa5d7322d7e1193813f4343d6802dc0ee703a7591ca4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a1c699784cf2c71775516681a769d3f2b033304a72a74f0f397f7ae639ccaec
[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" "9a1c699784cf2c71775516681a769d3f2b033304a72a74f0f397f7ae639ccaec", kill_on_drop: false }`
[INFO] [stderr]    Compiling colorpal v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "9a1c699784cf2c71775516681a769d3f2b033304a72a74f0f397f7ae639ccaec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a1c699784cf2c71775516681a769d3f2b033304a72a74f0f397f7ae639ccaec", kill_on_drop: false }`
[INFO] [stdout] 9a1c699784cf2c71775516681a769d3f2b033304a72a74f0f397f7ae639ccaec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6f3917b503e5b7a72eeaec9c5b012a211dc8ae601fc1b65e00fad4565e636f5
[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" "d6f3917b503e5b7a72eeaec9c5b012a211dc8ae601fc1b65e00fad4565e636f5", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/colorpal-ee93838db71572da
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6f3917b503e5b7a72eeaec9c5b012a211dc8ae601fc1b65e00fad4565e636f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6f3917b503e5b7a72eeaec9c5b012a211dc8ae601fc1b65e00fad4565e636f5", kill_on_drop: false }`
[INFO] [stdout] d6f3917b503e5b7a72eeaec9c5b012a211dc8ae601fc1b65e00fad4565e636f5