[INFO] cloning repository https://github.com/LeJane/tcp_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeJane/tcp_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeJane%2Ftcp_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeJane%2Ftcp_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36a84f13d2a77a50d11260f8590642e47091d10b
[INFO] checking LeJane/tcp_test against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeJane%2Ftcp_test" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeJane/tcp_test on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LeJane/tcp_test
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/LeJane/tcp_test
[INFO] tweaked toml for git repo https://github.com/LeJane/tcp_test written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/LeJane/tcp_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-hack-impl v0.4.2
[INFO] [stderr]   Downloaded guid-macro-impl v0.1.0
[INFO] [stderr]   Downloaded tracing-core v0.1.11
[INFO] [stderr]   Downloaded murmur3 v0.5.1
[INFO] [stderr]   Downloaded cityhash v0.1.1
[INFO] [stderr]   Downloaded guid v0.1.0
[INFO] [stderr]   Downloaded chomp v0.3.1
[INFO] [stderr]   Downloaded guid-parser v0.1.0
[INFO] [stderr]   Downloaded guid-create v0.1.1
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.7
[INFO] [stderr]   Downloaded tracing v0.1.16
[INFO] [stderr]   Downloaded debugtrace v0.1.0
[INFO] [stderr]   Downloaded proc-macro-hack v0.4.2
[INFO] [stderr]   Downloaded either v0.1.7
[INFO] [stderr]   Downloaded tracing-attributes v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4813d0ccb7f155270a3544a3e2ed9937b030d378acf69271eb1c189a6e745052
[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" "4813d0ccb7f155270a3544a3e2ed9937b030d378acf69271eb1c189a6e745052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4813d0ccb7f155270a3544a3e2ed9937b030d378acf69271eb1c189a6e745052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4813d0ccb7f155270a3544a3e2ed9937b030d378acf69271eb1c189a6e745052", kill_on_drop: false }`
[INFO] [stdout] 4813d0ccb7f155270a3544a3e2ed9937b030d378acf69271eb1c189a6e745052
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3216032f4de0d55a7e9a12b1b3ec8c6602673b5ea2cf75b5685065862f36e8f9
[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" "3216032f4de0d55a7e9a12b1b3ec8c6602673b5ea2cf75b5685065862f36e8f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling debugtrace v0.1.0
[INFO] [stderr]     Checking parking v1.0.4
[INFO] [stderr]     Checking either v0.1.7
[INFO] [stderr]     Checking murmur3 v0.5.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking backtrace v0.1.8
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking bigdecimal v0.1.2
[INFO] [stderr]     Checking chomp v0.3.1
[INFO] [stderr]     Checking guid-parser v0.1.0
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking tracing-subscriber v0.2.7
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking guid v0.1.0
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking tracing v0.1.16
[INFO] [stderr]     Checking guid-create v0.1.1
[INFO] [stderr]    Compiling bindgen v0.49.4
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking diesel v1.4.5
[INFO] [stderr]     Checking blocking v0.4.6
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking combine v4.2.1
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]    Compiling cityhash v0.1.1
[INFO] [stderr]     Checking redis v0.16.0
[INFO] [stderr]     Checking tcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 40s
[INFO] running `Command { std: "docker" "inspect" "3216032f4de0d55a7e9a12b1b3ec8c6602673b5ea2cf75b5685065862f36e8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3216032f4de0d55a7e9a12b1b3ec8c6602673b5ea2cf75b5685065862f36e8f9", kill_on_drop: false }`
[INFO] [stdout] 3216032f4de0d55a7e9a12b1b3ec8c6602673b5ea2cf75b5685065862f36e8f9