[INFO] fetching crate poison-pool 0.1.0...
[INFO] testing poison-pool-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate poison-pool 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate poison-pool 0.1.0 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 poison-pool 0.1.0
[INFO] finished tweaking crates.io crate poison-pool 0.1.0
[INFO] tweaked toml for crates.io crate poison-pool 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] d472dadc7e5b28a44ecca95435caef68254c36b33ad5e4c6a22fca7fe91f4e75
[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" "d472dadc7e5b28a44ecca95435caef68254c36b33ad5e4c6a22fca7fe91f4e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d472dadc7e5b28a44ecca95435caef68254c36b33ad5e4c6a22fca7fe91f4e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d472dadc7e5b28a44ecca95435caef68254c36b33ad5e4c6a22fca7fe91f4e75", kill_on_drop: false }`
[INFO] [stdout] d472dadc7e5b28a44ecca95435caef68254c36b33ad5e4c6a22fca7fe91f4e75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a84f56d4b4b59ccf2aeb677900796ef4419e2d510333a4df9259e4f4d959499a
[INFO] running `Command { std: "docker" "start" "-a" "a84f56d4b4b59ccf2aeb677900796ef4419e2d510333a4df9259e4f4d959499a", kill_on_drop: false }`
[INFO] [stderr]    Compiling poison-pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "a84f56d4b4b59ccf2aeb677900796ef4419e2d510333a4df9259e4f4d959499a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a84f56d4b4b59ccf2aeb677900796ef4419e2d510333a4df9259e4f4d959499a", kill_on_drop: false }`
[INFO] [stdout] a84f56d4b4b59ccf2aeb677900796ef4419e2d510333a4df9259e4f4d959499a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 612a3655d2624202a68057cfd911a77ec5cdc98063d7d981cceeb3b8a55b64f1
[INFO] running `Command { std: "docker" "start" "-a" "612a3655d2624202a68057cfd911a77ec5cdc98063d7d981cceeb3b8a55b64f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling poison-pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "612a3655d2624202a68057cfd911a77ec5cdc98063d7d981cceeb3b8a55b64f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612a3655d2624202a68057cfd911a77ec5cdc98063d7d981cceeb3b8a55b64f1", kill_on_drop: false }`
[INFO] [stdout] 612a3655d2624202a68057cfd911a77ec5cdc98063d7d981cceeb3b8a55b64f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] bb1c802a536d769d111a134bb928ad4252fa2cac48ac21d6d87ea120f1a702d2
[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" "bb1c802a536d769d111a134bb928ad4252fa2cac48ac21d6d87ea120f1a702d2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/poison_pool-2d1faa66637add61
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test_unpoison ... ok
[INFO] [stdout] test test_taken ... ok
[INFO] [stdout] test test_single ... ok
[INFO] [stdout] test test_reuse ... ok
[INFO] [stdout] test test_empty ... ok
[INFO] [stderr]    Doc-tests poison-pool
[INFO] [stdout] test test_poison ... ok
[INFO] [stdout] test test_replace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 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" "bb1c802a536d769d111a134bb928ad4252fa2cac48ac21d6d87ea120f1a702d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb1c802a536d769d111a134bb928ad4252fa2cac48ac21d6d87ea120f1a702d2", kill_on_drop: false }`
[INFO] [stdout] bb1c802a536d769d111a134bb928ad4252fa2cac48ac21d6d87ea120f1a702d2