[INFO] fetching crate workerpool-rs 0.1.3...
[INFO] testing workerpool-rs-0.1.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate workerpool-rs 0.1.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate workerpool-rs 0.1.3 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 workerpool-rs 0.1.3
[INFO] finished tweaking crates.io crate workerpool-rs 0.1.3
[INFO] tweaked toml for crates.io crate workerpool-rs 0.1.3 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33f254f0eff5e6f4d51c1cd5dc0edc27edf17c6a72723fd2d56a0ee9a507cdc2
[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" "33f254f0eff5e6f4d51c1cd5dc0edc27edf17c6a72723fd2d56a0ee9a507cdc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33f254f0eff5e6f4d51c1cd5dc0edc27edf17c6a72723fd2d56a0ee9a507cdc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f254f0eff5e6f4d51c1cd5dc0edc27edf17c6a72723fd2d56a0ee9a507cdc2", kill_on_drop: false }`
[INFO] [stdout] 33f254f0eff5e6f4d51c1cd5dc0edc27edf17c6a72723fd2d56a0ee9a507cdc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 57004284a66916c4824fc431dd88bd2b7de8c8a5165b9e3601ab2f5679c455f3
[INFO] running `Command { std: "docker" "start" "-a" "57004284a66916c4824fc431dd88bd2b7de8c8a5165b9e3601ab2f5679c455f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling workerpool-rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "57004284a66916c4824fc431dd88bd2b7de8c8a5165b9e3601ab2f5679c455f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57004284a66916c4824fc431dd88bd2b7de8c8a5165b9e3601ab2f5679c455f3", kill_on_drop: false }`
[INFO] [stdout] 57004284a66916c4824fc431dd88bd2b7de8c8a5165b9e3601ab2f5679c455f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13ed196db1d063c3cfc9002c3b7c2fbd693804c2819563a2596bf1fc19cf60f4
[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" "13ed196db1d063c3cfc9002c3b7c2fbd693804c2819563a2596bf1fc19cf60f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling workerpool-rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "13ed196db1d063c3cfc9002c3b7c2fbd693804c2819563a2596bf1fc19cf60f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13ed196db1d063c3cfc9002c3b7c2fbd693804c2819563a2596bf1fc19cf60f4", kill_on_drop: false }`
[INFO] [stdout] 13ed196db1d063c3cfc9002c3b7c2fbd693804c2819563a2596bf1fc19cf60f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d81b4df2868f8f116bc14d634be5e0e1e195a406fad3332769f55b3df8d1c3c2
[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" "d81b4df2868f8f116bc14d634be5e0e1e195a406fad3332769f55b3df8d1c3c2", 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/workerpool_rs-ea56e85edd5b629c
[INFO] [stdout] running 3 tests
[INFO] [stdout] test pool::unit_tests::workerpool_should_return_new ... ok
[INFO] [stdout] test pool::unit_tests::workerpool_should_execute_job_succeed ... ok
[INFO] [stdout] test pool::unit_tests::worker_should_return_new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration-e897ff0654001634
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test pool_should_synchronize_sender_and_receiver_and_fold_results ... ok
[INFO] [stdout] test pool_should_sum_atomic_variable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests workerpool-rs
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/pool.rs - pool::WorkerPool::new (line 34) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] test src/pool.rs - pool::WorkerPool::execute (line 61) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d81b4df2868f8f116bc14d634be5e0e1e195a406fad3332769f55b3df8d1c3c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d81b4df2868f8f116bc14d634be5e0e1e195a406fad3332769f55b3df8d1c3c2", kill_on_drop: false }`
[INFO] [stdout] d81b4df2868f8f116bc14d634be5e0e1e195a406fad3332769f55b3df8d1c3c2