[INFO] cloning repository https://github.com/modeverv/Rust2020_port_scanner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/modeverv/Rust2020_port_scanner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2FRust2020_port_scanner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2FRust2020_port_scanner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8356ddf74dd62d32ecd8732e0ffe8c6cd5534a9
[INFO] documenting modeverv/Rust2020_port_scanner against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodeverv%2FRust2020_port_scanner" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/modeverv/Rust2020_port_scanner on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/modeverv/Rust2020_port_scanner
[INFO] finished tweaking git repo https://github.com/modeverv/Rust2020_port_scanner
[INFO] tweaked toml for git repo https://github.com/modeverv/Rust2020_port_scanner written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/modeverv/Rust2020_port_scanner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_sys v0.25.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.25.0
[INFO] [stderr]   Downloaded ipnetwork v0.15.1
[INFO] [stderr]   Downloaded pnet_datalink v0.25.0
[INFO] [stderr]   Downloaded pnet_packet v0.25.0
[INFO] [stderr]   Downloaded pnet_transport v0.25.0
[INFO] [stderr]   Downloaded pnet v0.25.0
[INFO] [stderr]   Downloaded pnet_base v0.22.0
[INFO] [stderr]   Downloaded pnet_macros v0.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fc3e402c89412e5a5a129ad08560d94aba052768e03a73059946414b30dfbe9
[INFO] running `Command { std: "docker" "start" "-a" "0fc3e402c89412e5a5a129ad08560d94aba052768e03a73059946414b30dfbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fc3e402c89412e5a5a129ad08560d94aba052768e03a73059946414b30dfbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fc3e402c89412e5a5a129ad08560d94aba052768e03a73059946414b30dfbe9", kill_on_drop: false }`
[INFO] [stdout] 0fc3e402c89412e5a5a129ad08560d94aba052768e03a73059946414b30dfbe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b08b530f826d2e4969238e1972acb5ad3c07e092df1bb5fb4d323e3dca653ae6
[INFO] running `Command { std: "docker" "start" "-a" "b08b530f826d2e4969238e1972acb5ad3c07e092df1bb5fb4d323e3dca653ae6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking pnet_macros_support v0.25.0
[INFO] [stderr]     Checking pnet_sys v0.25.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling pnet v0.25.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking backtrace v0.3.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking ipnetwork v0.15.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking pnet_datalink v0.25.0
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.25.0
[INFO] [stderr]    Compiling pnet_packet v0.25.0
[INFO] [stderr]     Checking pnet_transport v0.25.0
[INFO] [stderr]  Documenting port-scanner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.34s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/port_scanner/index.html
[INFO] running `Command { std: "docker" "inspect" "b08b530f826d2e4969238e1972acb5ad3c07e092df1bb5fb4d323e3dca653ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b08b530f826d2e4969238e1972acb5ad3c07e092df1bb5fb4d323e3dca653ae6", kill_on_drop: false }`
[INFO] [stdout] b08b530f826d2e4969238e1972acb5ad3c07e092df1bb5fb4d323e3dca653ae6