[INFO] fetching crate imagequant 2.13.0...
[INFO] testing imagequant-2.13.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate imagequant 2.13.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate imagequant 2.13.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imagequant 2.13.0
[INFO] finished tweaking crates.io crate imagequant 2.13.0
[INFO] tweaked toml for crates.io crate imagequant 2.13.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate imagequant 2.13.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caf9d377cc8fd35a2396fa25aa03789a1fe3f8a6a791e08a94aeb0a10872efc5
[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" "caf9d377cc8fd35a2396fa25aa03789a1fe3f8a6a791e08a94aeb0a10872efc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caf9d377cc8fd35a2396fa25aa03789a1fe3f8a6a791e08a94aeb0a10872efc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caf9d377cc8fd35a2396fa25aa03789a1fe3f8a6a791e08a94aeb0a10872efc5", kill_on_drop: false }`
[INFO] [stdout] caf9d377cc8fd35a2396fa25aa03789a1fe3f8a6a791e08a94aeb0a10872efc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70ad6a1e64e0e13ef45b46902a57b2a304cee5f7420eb40a02dfb03cb4cd3a73
[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" "70ad6a1e64e0e13ef45b46902a57b2a304cee5f7420eb40a02dfb03cb4cd3a73", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling bytemuck v1.4.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling rgb v0.8.25
[INFO] [stderr]    Compiling imagequant-sys v2.13.0
[INFO] [stderr]    Compiling imagequant v2.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.21s
[INFO] running `Command { std: "docker" "inspect" "70ad6a1e64e0e13ef45b46902a57b2a304cee5f7420eb40a02dfb03cb4cd3a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ad6a1e64e0e13ef45b46902a57b2a304cee5f7420eb40a02dfb03cb4cd3a73", kill_on_drop: false }`
[INFO] [stdout] 70ad6a1e64e0e13ef45b46902a57b2a304cee5f7420eb40a02dfb03cb4cd3a73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen" "--no-run" "--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] a51c1e9485b0f5dc90cef7ffe274e02313a06408b3d35bc3e31de7cb0fc06cba
[INFO] running `Command { std: "docker" "start" "-a" "a51c1e9485b0f5dc90cef7ffe274e02313a06408b3d35bc3e31de7cb0fc06cba", kill_on_drop: false }`
[INFO] [stderr]    Compiling imagequant v2.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "a51c1e9485b0f5dc90cef7ffe274e02313a06408b3d35bc3e31de7cb0fc06cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a51c1e9485b0f5dc90cef7ffe274e02313a06408b3d35bc3e31de7cb0fc06cba", kill_on_drop: false }`
[INFO] [stdout] a51c1e9485b0f5dc90cef7ffe274e02313a06408b3d35bc3e31de7cb0fc06cba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5a19c38c7c577f1822c14cf77d60008a7cc039ad1c7cb5315ccb9e513f35b707
[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" "5a19c38c7c577f1822c14cf77d60008a7cc039ad1c7cb5315ccb9e513f35b707", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/imagequant-83adb36a1a3add15
[INFO] [stdout] test takes_rgba ... ok
[INFO] [stdout] test thread ... ok
[INFO] [stdout] test callback_test ... ok
[INFO] [stdout] test histogram ... ok
[INFO] [stdout] test poke_it ... ok
[INFO] [stderr]    Doc-tests imagequant
[INFO] [stdout] test set_importance_map ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5a19c38c7c577f1822c14cf77d60008a7cc039ad1c7cb5315ccb9e513f35b707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a19c38c7c577f1822c14cf77d60008a7cc039ad1c7cb5315ccb9e513f35b707", kill_on_drop: false }`
[INFO] [stdout] 5a19c38c7c577f1822c14cf77d60008a7cc039ad1c7cb5315ccb9e513f35b707