[INFO] fetching crate proxypool 0.1.0...
[INFO] testing proxypool-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate proxypool 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate proxypool 0.1.0 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 proxypool 0.1.0
[INFO] finished tweaking crates.io crate proxypool 0.1.0
[INFO] tweaked toml for crates.io crate proxypool 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate proxypool 0.1.0 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] 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] be7110179ce8cf68072d9a26b5449311cbf2d50cf0cace72882f151a3d02c7c5
[INFO] running `Command { std: "docker" "start" "-a" "be7110179ce8cf68072d9a26b5449311cbf2d50cf0cace72882f151a3d02c7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be7110179ce8cf68072d9a26b5449311cbf2d50cf0cace72882f151a3d02c7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be7110179ce8cf68072d9a26b5449311cbf2d50cf0cace72882f151a3d02c7c5", kill_on_drop: false }`
[INFO] [stdout] be7110179ce8cf68072d9a26b5449311cbf2d50cf0cace72882f151a3d02c7c5
[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] dc71b8348335055f92331be7fcd74769ddd2f71bc53ff1aa8fe1179c95a384ce
[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" "dc71b8348335055f92331be7fcd74769ddd2f71bc53ff1aa8fe1179c95a384ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proxypool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "dc71b8348335055f92331be7fcd74769ddd2f71bc53ff1aa8fe1179c95a384ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc71b8348335055f92331be7fcd74769ddd2f71bc53ff1aa8fe1179c95a384ce", kill_on_drop: false }`
[INFO] [stdout] dc71b8348335055f92331be7fcd74769ddd2f71bc53ff1aa8fe1179c95a384ce
[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] f2d7b48e0d94e258614d0a83b759b91e118987c3753be7699f8e33fa41d44678
[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" "f2d7b48e0d94e258614d0a83b759b91e118987c3753be7699f8e33fa41d44678", kill_on_drop: false }`
[INFO] [stderr]    Compiling proxypool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "f2d7b48e0d94e258614d0a83b759b91e118987c3753be7699f8e33fa41d44678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d7b48e0d94e258614d0a83b759b91e118987c3753be7699f8e33fa41d44678", kill_on_drop: false }`
[INFO] [stdout] f2d7b48e0d94e258614d0a83b759b91e118987c3753be7699f8e33fa41d44678
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec5dbca24fd3149b7d209907b165263b521d461986f8cd8cf46de71a29ae63de
[INFO] running `Command { std: "docker" "start" "-a" "ec5dbca24fd3149b7d209907b165263b521d461986f8cd8cf46de71a29ae63de", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/proxypool-667df67be4fdb5b9
[INFO] [stdout] running 0 tests
[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" "ec5dbca24fd3149b7d209907b165263b521d461986f8cd8cf46de71a29ae63de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5dbca24fd3149b7d209907b165263b521d461986f8cd8cf46de71a29ae63de", kill_on_drop: false }`
[INFO] [stdout] ec5dbca24fd3149b7d209907b165263b521d461986f8cd8cf46de71a29ae63de