[INFO] cloning repository https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmed2929%2Fimplementing_TCP_protocol-using-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmed2929%2Fimplementing_TCP_protocol-using-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5834f56a6c47554b60cef0778cf61b723b3dbec3
[INFO] documenting ahmed2929/implementing_TCP_protocol-using-Rust against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmed2929%2Fimplementing_TCP_protocol-using-Rust" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust
[INFO] finished tweaking git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust
[INFO] tweaked toml for git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/ahmed2929/implementing_TCP_protocol-using-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tun-tap v0.1.2
[INFO] [stderr]   Downloaded etherparse v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2de6875d4a100878c9684964699b2ef840e6c719c8ffea696d1b95c8fd0bd7e3
[INFO] running `Command { std: "docker" "start" "-a" "2de6875d4a100878c9684964699b2ef840e6c719c8ffea696d1b95c8fd0bd7e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2de6875d4a100878c9684964699b2ef840e6c719c8ffea696d1b95c8fd0bd7e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2de6875d4a100878c9684964699b2ef840e6c719c8ffea696d1b95c8fd0bd7e3", kill_on_drop: false }`
[INFO] [stdout] 2de6875d4a100878c9684964699b2ef840e6c719c8ffea696d1b95c8fd0bd7e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f05301cfcd5a02d55cfad18979e813fd07adeb6909c5f6bc276ccfe7228155c6
[INFO] running `Command { std: "docker" "start" "-a" "f05301cfcd5a02d55cfad18979e813fd07adeb6909c5f6bc276ccfe7228155c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking etherparse v0.8.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]  Documenting TCP_Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.30s
[INFO] running `Command { std: "docker" "inspect" "f05301cfcd5a02d55cfad18979e813fd07adeb6909c5f6bc276ccfe7228155c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05301cfcd5a02d55cfad18979e813fd07adeb6909c5f6bc276ccfe7228155c6", kill_on_drop: false }`
[INFO] [stdout] f05301cfcd5a02d55cfad18979e813fd07adeb6909c5f6bc276ccfe7228155c6