[INFO] fetching crate tokio-tcp 0.1.4...
[INFO] testing tokio-tcp-0.1.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tokio-tcp 0.1.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate tokio-tcp 0.1.4 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] f5d981c25db00e0fac483051aff86a79e24dfada48955fa54a707b5c0a1014f6
[INFO] running `Command { std: "docker" "start" "-a" "f5d981c25db00e0fac483051aff86a79e24dfada48955fa54a707b5c0a1014f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5d981c25db00e0fac483051aff86a79e24dfada48955fa54a707b5c0a1014f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d981c25db00e0fac483051aff86a79e24dfada48955fa54a707b5c0a1014f6", kill_on_drop: false }`
[INFO] [stdout] f5d981c25db00e0fac483051aff86a79e24dfada48955fa54a707b5c0a1014f6
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be905c6f21c7eb4ef8a0fc1bc710c9290f76fe21029ab650818e57910602f32d
[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" "be905c6f21c7eb4ef8a0fc1bc710c9290f76fe21029ab650818e57910602f32d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-tcp v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.78s
[INFO] running `Command { std: "docker" "inspect" "be905c6f21c7eb4ef8a0fc1bc710c9290f76fe21029ab650818e57910602f32d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be905c6f21c7eb4ef8a0fc1bc710c9290f76fe21029ab650818e57910602f32d", kill_on_drop: false }`
[INFO] [stdout] be905c6f21c7eb4ef8a0fc1bc710c9290f76fe21029ab650818e57910602f32d
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b84a7d1f40188e29af8c7d2a4d7f82bc1824f92d39df308bf2f3a12404e539e
[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" "9b84a7d1f40188e29af8c7d2a4d7f82bc1824f92d39df308bf2f3a12404e539e", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-tcp v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> tests/tcp.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |             client.set_linger(Some(Duration::from_millis(0))).unwrap();
[INFO] [stdout]     |                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `net2::TcpStreamExt::set_linger(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.99s
[INFO] running `Command { std: "docker" "inspect" "9b84a7d1f40188e29af8c7d2a4d7f82bc1824f92d39df308bf2f3a12404e539e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b84a7d1f40188e29af8c7d2a4d7f82bc1824f92d39df308bf2f3a12404e539e", kill_on_drop: false }`
[INFO] [stdout] 9b84a7d1f40188e29af8c7d2a4d7f82bc1824f92d39df308bf2f3a12404e539e
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 40c08e14472616b76b1f698c37f615717d56c630bf6808007f6517fd61944dfb
[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" "40c08e14472616b76b1f698c37f615717d56c630bf6808007f6517fd61944dfb", kill_on_drop: false }`
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]    --> tests/tcp.rs:110:20
[INFO] [stderr]     |
[INFO] [stderr] 110 |             client.set_linger(Some(Duration::from_millis(0))).unwrap();
[INFO] [stderr]     |                    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `net2::TcpStreamExt::set_linger(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-tcp` (test "tcp") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tokio_tcp-98a504fe28db16a2)
[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-024932d6dd72893f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/echo.rs (/opt/rustwide/target/debug/deps/echo-317ba49743486457)
[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 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test echo_server ... ok
[INFO] [stderr]      Running tests/limit.rs (/opt/rustwide/target/debug/deps/limit-75de558cf04312c5)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[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 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/stream-buffered.rs (/opt/rustwide/target/debug/deps/stream_buffered-922795844c4f7390)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test echo_server ... ok
[INFO] [stderr]      Running tests/tcp.rs (/opt/rustwide/target/debug/deps/tcp-d6e4c29484d46697)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test connect ... ok
[INFO] [stdout] test accept2 ... ok
[INFO] [stdout] test accept ... ok
[INFO] [stderr]    Doc-tests tokio-tcp
[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] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test src/listener.rs - listener::TcpListener::poll_accept (line 104) - 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_std (line 162) - compile ... ok
[INFO] [stdout] test src/stream.rs - stream::TcpStream::from_std (line 112) - compile ... ok
[INFO] [stdout] test src/listener.rs - listener::TcpListener (line 19) - 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-fbe6ac07d2e420e5.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-28181dd4630919a8.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-0f39203b7bbc7621.rlib --extern iovec=/opt/rustwide/target/debug/deps/libiovec-242f10ce7bbc95eb.rlib --extern mio=/opt/rustwide/target/debug/deps/libmio-b4b7c3e607a6f321.rlib --extern net2=/opt/rustwide/target/debug/deps/libnet2-6a8f78471551e95a.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-396145fa7ffee970.rlib --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-c814b454c7642d2d.rlib --extern tokio_reactor=/opt/rustwide/target/debug/deps/libtokio_reactor-408ed189df8cf632.rlib --extern tokio_tcp=/opt/rustwide/target/debug/deps/libtokio_tcp-ea0a2b17085611d3.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "40c08e14472616b76b1f698c37f615717d56c630bf6808007f6517fd61944dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40c08e14472616b76b1f698c37f615717d56c630bf6808007f6517fd61944dfb", kill_on_drop: false }`
[INFO] [stdout] 40c08e14472616b76b1f698c37f615717d56c630bf6808007f6517fd61944dfb