[INFO] fetching crate toy_pool 0.1.1...
[INFO] testing toy_pool-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate toy_pool 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate toy_pool 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate toy_pool 0.1.1
[INFO] finished tweaking crates.io crate toy_pool 0.1.1
[INFO] tweaked toml for crates.io crate toy_pool 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13ab64395d8ad983a4130003d685d9eb1312a1d347279475d7754ffa285966c6
[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" "13ab64395d8ad983a4130003d685d9eb1312a1d347279475d7754ffa285966c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13ab64395d8ad983a4130003d685d9eb1312a1d347279475d7754ffa285966c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13ab64395d8ad983a4130003d685d9eb1312a1d347279475d7754ffa285966c6", kill_on_drop: false }`
[INFO] [stdout] 13ab64395d8ad983a4130003d685d9eb1312a1d347279475d7754ffa285966c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4fca51eaf94ec62e35e651bc0fa6213e45b05bf8c59cd19b7409b2350d6821a
[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" "f4fca51eaf94ec62e35e651bc0fa6213e45b05bf8c59cd19b7409b2350d6821a", kill_on_drop: false }`
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling toy_pool v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "f4fca51eaf94ec62e35e651bc0fa6213e45b05bf8c59cd19b7409b2350d6821a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4fca51eaf94ec62e35e651bc0fa6213e45b05bf8c59cd19b7409b2350d6821a", kill_on_drop: false }`
[INFO] [stdout] f4fca51eaf94ec62e35e651bc0fa6213e45b05bf8c59cd19b7409b2350d6821a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8be9a8b6edf3983cc235b4df656eb75f02a5980bc47c67cf56ac6181fc455f58
[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" "8be9a8b6edf3983cc235b4df656eb75f02a5980bc47c67cf56ac6181fc455f58", kill_on_drop: false }`
[INFO] [stderr]    Compiling toy_pool v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "8be9a8b6edf3983cc235b4df656eb75f02a5980bc47c67cf56ac6181fc455f58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be9a8b6edf3983cc235b4df656eb75f02a5980bc47c67cf56ac6181fc455f58", kill_on_drop: false }`
[INFO] [stdout] 8be9a8b6edf3983cc235b4df656eb75f02a5980bc47c67cf56ac6181fc455f58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.55.0" "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] b5b827694fad0f8edcdc5830214a2cfb817aa2e55e2b2f9df3b6ba9b4249f66f
[INFO] running `Command { std: "docker" "start" "-a" "b5b827694fad0f8edcdc5830214a2cfb817aa2e55e2b2f9df3b6ba9b4249f66f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/toy_pool-f87e1fb059fc4c98)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests toy_pool
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b5b827694fad0f8edcdc5830214a2cfb817aa2e55e2b2f9df3b6ba9b4249f66f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b827694fad0f8edcdc5830214a2cfb817aa2e55e2b2f9df3b6ba9b4249f66f", kill_on_drop: false }`
[INFO] [stdout] b5b827694fad0f8edcdc5830214a2cfb817aa2e55e2b2f9df3b6ba9b4249f66f