[INFO] fetching crate tcp-clone 0.99.4...
[INFO] testing tcp-clone-0.99.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tcp-clone 0.99.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tcp-clone 0.99.4 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 tcp-clone 0.99.4
[INFO] finished tweaking crates.io crate tcp-clone 0.99.4
[INFO] tweaked toml for crates.io crate tcp-clone 0.99.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate tcp-clone 0.99.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stdout] d0d0f1841c521b83146d630873acd7c0104d5d735c4001c7dd87806b547af118
[INFO] running `Command { std: "docker" "start" "-a" "d0d0f1841c521b83146d630873acd7c0104d5d735c4001c7dd87806b547af118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0d0f1841c521b83146d630873acd7c0104d5d735c4001c7dd87806b547af118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d0f1841c521b83146d630873acd7c0104d5d735c4001c7dd87806b547af118", kill_on_drop: false }`
[INFO] [stdout] d0d0f1841c521b83146d630873acd7c0104d5d735c4001c7dd87806b547af118
[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] caa9624b527cccddd5f876eaca9cb40e394c71c3e346aa895d583a2cec3197f5
[INFO] running `Command { std: "docker" "start" "-a" "caa9624b527cccddd5f876eaca9cb40e394c71c3e346aa895d583a2cec3197f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling futures-timer v2.0.2
[INFO] [stderr]    Compiling once_cell v1.2.0
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling async-macros v2.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling async-task v1.0.0
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling mio v0.6.20
[INFO] [stderr]    Compiling kv-log-macro v1.0.4
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling broadcaster v0.2.6
[INFO] [stderr]    Compiling async-std v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling toml v0.5.5
[INFO] [stderr]    Compiling tcp-clone v0.99.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.13s
[INFO] running `Command { std: "docker" "inspect" "caa9624b527cccddd5f876eaca9cb40e394c71c3e346aa895d583a2cec3197f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa9624b527cccddd5f876eaca9cb40e394c71c3e346aa895d583a2cec3197f5", kill_on_drop: false }`
[INFO] [stdout] caa9624b527cccddd5f876eaca9cb40e394c71c3e346aa895d583a2cec3197f5
[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] 1e40972344e7021229111c2515e0654339813a98426391b1deb3c58ec8408f66
[INFO] running `Command { std: "docker" "start" "-a" "1e40972344e7021229111c2515e0654339813a98426391b1deb3c58ec8408f66", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp-clone v0.99.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "1e40972344e7021229111c2515e0654339813a98426391b1deb3c58ec8408f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e40972344e7021229111c2515e0654339813a98426391b1deb3c58ec8408f66", kill_on_drop: false }`
[INFO] [stdout] 1e40972344e7021229111c2515e0654339813a98426391b1deb3c58ec8408f66
[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] 6ec0c0a85dd10e0e493e96d1c1770ca2e935f61caa5ea76545d6572e0cc09b6e
[INFO] running `Command { std: "docker" "start" "-a" "6ec0c0a85dd10e0e493e96d1c1770ca2e935f61caa5ea76545d6572e0cc09b6e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tcp_clone-5887f764a955044f)
[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 unittests (/opt/rustwide/target/debug/deps/tcp_clone-3cf8bdf2404e4b2e)
[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/echo.rs (/opt/rustwide/target/debug/deps/echo-e2a11bc46028d6ca)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test echo_server_client ... ok
[INFO] [stdout] test echo_server_proxy ... ok
[INFO] [stdout] test echo_server_proxy_with_observers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tcp-clone
[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" "6ec0c0a85dd10e0e493e96d1c1770ca2e935f61caa5ea76545d6572e0cc09b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec0c0a85dd10e0e493e96d1c1770ca2e935f61caa5ea76545d6572e0cc09b6e", kill_on_drop: false }`
[INFO] [stdout] 6ec0c0a85dd10e0e493e96d1c1770ca2e935f61caa5ea76545d6572e0cc09b6e