[INFO] fetching crate tokio-tcp 0.1.4...
[INFO] testing tokio-tcp-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tokio-tcp 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tokio-tcp 0.1.4 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 tokio-tcp 0.1.4
[INFO] finished tweaking crates.io crate tokio-tcp 0.1.4
[INFO] tweaked toml for crates.io crate tokio-tcp 0.1.4 written to /workspace/builds/worker-4/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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ceead34e7e82aba35fde49c1b1c8d3a206aad56aa71260efcc59da7757f80a84
[INFO] running `Command { std: "docker" "start" "-a" "ceead34e7e82aba35fde49c1b1c8d3a206aad56aa71260efcc59da7757f80a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ceead34e7e82aba35fde49c1b1c8d3a206aad56aa71260efcc59da7757f80a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceead34e7e82aba35fde49c1b1c8d3a206aad56aa71260efcc59da7757f80a84", kill_on_drop: false }`
[INFO] [stdout] ceead34e7e82aba35fde49c1b1c8d3a206aad56aa71260efcc59da7757f80a84
[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" "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] 8a2b1f79fc34ded494a452ba14931f5fc3b73299fb91fee3ff35323fe28ad563
[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" "8a2b1f79fc34ded494a452ba14931f5fc3b73299fb91fee3ff35323fe28ad563", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-tcp v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "8a2b1f79fc34ded494a452ba14931f5fc3b73299fb91fee3ff35323fe28ad563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a2b1f79fc34ded494a452ba14931f5fc3b73299fb91fee3ff35323fe28ad563", kill_on_drop: false }`
[INFO] [stdout] 8a2b1f79fc34ded494a452ba14931f5fc3b73299fb91fee3ff35323fe28ad563
[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" "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] 77e221a4326e6d614c6099019a30b5ddeda7e088f766c309cf5d0bd99c1e919b
[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" "77e221a4326e6d614c6099019a30b5ddeda7e088f766c309cf5d0bd99c1e919b", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "77e221a4326e6d614c6099019a30b5ddeda7e088f766c309cf5d0bd99c1e919b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77e221a4326e6d614c6099019a30b5ddeda7e088f766c309cf5d0bd99c1e919b", kill_on_drop: false }`
[INFO] [stdout] 77e221a4326e6d614c6099019a30b5ddeda7e088f766c309cf5d0bd99c1e919b
[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" "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] [stdout] 43e176db86d61af1d5b19d65c4dbd9badd7fea9ccd4a55f0ec000e5c0d79ebd6
[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" "43e176db86d61af1d5b19d65c4dbd9badd7fea9ccd4a55f0ec000e5c0d79ebd6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tokio_tcp-e0d5d5fe074de763)
[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] [stderr]      Running tests/chain.rs (/opt/rustwide/target/debug/deps/chain-cbdfb41802911cea)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test chain_clients ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/echo.rs (/opt/rustwide/target/debug/deps/echo-3f1466cb5dce7590)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test echo_server ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/limit.rs (/opt/rustwide/target/debug/deps/limit-3d1d250aedbde7d3)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test limit ... 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]      Running tests/stream-buffered.rs (/opt/rustwide/target/debug/deps/stream_buffered-8a09d129cf4f6510)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test echo_server ... 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]      Running tests/tcp.rs (/opt/rustwide/target/debug/deps/tcp-46eff1febc09fc85)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test connect ... ok
[INFO] [stdout] test accept ... ok
[INFO] [stdout] test accept2 ... ok
[INFO] [stdout] test linux::poll_hup ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tokio-tcp
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test src/listener.rs - listener::TcpListener (line 19) - compile ... ok
[INFO] [stdout] test src/listener.rs - listener::TcpListener::from_std (line 225) - compile ... ok
[INFO] [stdout] test src/listener.rs - listener::TcpListener::poll_accept (line 104) - compile ... ok
[INFO] [stdout] test src/listener.rs - listener::TcpListener::poll_accept_std (line 162) - compile ... ok
[INFO] [stdout] test src/stream.rs - stream::TcpStream::from_std (line 112) - compile ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name tokio_tcp --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-af37c81f8798db45.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-8a816484921d0f65.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-1e2976b395eeb9c1.rlib --extern iovec=/opt/rustwide/target/debug/deps/libiovec-b4ce967c96b8f1b3.rlib --extern mio=/opt/rustwide/target/debug/deps/libmio-62b221dfdf85ec4e.rlib --extern net2=/opt/rustwide/target/debug/deps/libnet2-4f47248ecb48139e.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-a2f56e3a319fd116.rlib --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-ab73b2eb7fb4c3f7.rlib --extern tokio_reactor=/opt/rustwide/target/debug/deps/libtokio_reactor-8422ccc8fc91a013.rlib --extern tokio_tcp=/opt/rustwide/target/debug/deps/libtokio_tcp-f89e50f6bc27b5bb.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "43e176db86d61af1d5b19d65c4dbd9badd7fea9ccd4a55f0ec000e5c0d79ebd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43e176db86d61af1d5b19d65c4dbd9badd7fea9ccd4a55f0ec000e5c0d79ebd6", kill_on_drop: false }`
[INFO] [stdout] 43e176db86d61af1d5b19d65c4dbd9badd7fea9ccd4a55f0ec000e5c0d79ebd6