[INFO] cloning repository https://github.com/esakat/rust-socket-programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/esakat/rust-socket-programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fesakat%2Frust-socket-programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fesakat%2Frust-socket-programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78de83b1f58cd51fd172eabdfcbc962eb35ee7c2
[INFO] testing esakat/rust-socket-programming against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fesakat%2Frust-socket-programming" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/esakat/rust-socket-programming on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/esakat/rust-socket-programming
[INFO] finished tweaking git repo https://github.com/esakat/rust-socket-programming
[INFO] tweaked toml for git repo https://github.com/esakat/rust-socket-programming written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/esakat/rust-socket-programming already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f3dd4fcca8187e5564c6a5926d5b910e25643af310864043490d67c255aa9a8
[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" "9f3dd4fcca8187e5564c6a5926d5b910e25643af310864043490d67c255aa9a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f3dd4fcca8187e5564c6a5926d5b910e25643af310864043490d67c255aa9a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f3dd4fcca8187e5564c6a5926d5b910e25643af310864043490d67c255aa9a8", kill_on_drop: false }`
[INFO] [stdout] 9f3dd4fcca8187e5564c6a5926d5b910e25643af310864043490d67c255aa9a8
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 227cd789f7a36149b373c3440733a32aef6d2eb723638efdf0a10aa1cbc68760
[INFO] running `Command { std: "docker" "start" "-a" "227cd789f7a36149b373c3440733a32aef6d2eb723638efdf0a10aa1cbc68760", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling socket-programming v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.00s
[INFO] running `Command { std: "docker" "inspect" "227cd789f7a36149b373c3440733a32aef6d2eb723638efdf0a10aa1cbc68760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227cd789f7a36149b373c3440733a32aef6d2eb723638efdf0a10aa1cbc68760", kill_on_drop: false }`
[INFO] [stdout] 227cd789f7a36149b373c3440733a32aef6d2eb723638efdf0a10aa1cbc68760
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a8888873e3981a101746a888b85128ec43cdf34d898b23acf517c21e0428850
[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" "1a8888873e3981a101746a888b85128ec43cdf34d898b23acf517c21e0428850", kill_on_drop: false }`
[INFO] [stderr]    Compiling socket-programming v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "1a8888873e3981a101746a888b85128ec43cdf34d898b23acf517c21e0428850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8888873e3981a101746a888b85128ec43cdf34d898b23acf517c21e0428850", kill_on_drop: false }`
[INFO] [stdout] 1a8888873e3981a101746a888b85128ec43cdf34d898b23acf517c21e0428850
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] 9e188227afc06220109005fee0e4ed632c8ac22bcb4060af3bfe0c23ab4bcf4a
[INFO] running `Command { std: "docker" "start" "-a" "9e188227afc06220109005fee0e4ed632c8ac22bcb4060af3bfe0c23ab4bcf4a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/socket_programming-f4b06644a5a53748
[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" "9e188227afc06220109005fee0e4ed632c8ac22bcb4060af3bfe0c23ab4bcf4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e188227afc06220109005fee0e4ed632c8ac22bcb4060af3bfe0c23ab4bcf4a", kill_on_drop: false }`
[INFO] [stdout] 9e188227afc06220109005fee0e4ed632c8ac22bcb4060af3bfe0c23ab4bcf4a