[INFO] cloning repository https://github.com/ruckc/mcr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruckc/mcr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc0734752846b14b3828d56403c693cc03db35da
[INFO] documenting ruckc/mcr against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruckc%2Fmcr" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruckc/mcr on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ruckc/mcr
[INFO] finished tweaking git repo https://github.com/ruckc/mcr
[INFO] tweaked toml for git repo https://github.com/ruckc/mcr written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/ruckc/mcr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clokwerk v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62ad7a907800370fd7c0c16438691a5982c61532488248da19ba8ddb4f9311db
[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" "62ad7a907800370fd7c0c16438691a5982c61532488248da19ba8ddb4f9311db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62ad7a907800370fd7c0c16438691a5982c61532488248da19ba8ddb4f9311db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62ad7a907800370fd7c0c16438691a5982c61532488248da19ba8ddb4f9311db", kill_on_drop: false }`
[INFO] [stdout] 62ad7a907800370fd7c0c16438691a5982c61532488248da19ba8ddb4f9311db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71468b175eaefae1c7c0a3cfb2806ab46eda02ac2d89f69ac637d090d053f917
[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" "71468b175eaefae1c7c0a3cfb2806ab46eda02ac2d89f69ac637d090d053f917", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]     Checking syslog v4.0.1
[INFO] [stderr]     Checking hexdump v0.1.0
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking clokwerk v0.2.2
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]  Documenting mcr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]   --> src/config.rs:18:80
[INFO] [stdout]    |
[INFO] [stdout] 18 |         .about("Sets up multicast routing for pure IGMP (Layer 2) management.")
[INFO] [stdout]    |                                                                                ^ help: add `;` here
[INFO] [stdout] ...
[INFO] [stdout] 21 |     let config_ini = ini::Ini::load_from_file(configfile.expect("No configuration file specified")).unwrap()    ;
[INFO] [stdout]    |     --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `mcr`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name mcr src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-d5a46b51e56deea1.rmeta --extern clokwerk=/opt/rustwide/target/debug/deps/libclokwerk-696ac0cb3cfca24d.rmeta --extern errno=/opt/rustwide/target/debug/deps/liberrno-a743c5c74f129ddf.rmeta --extern hexdump=/opt/rustwide/target/debug/deps/libhexdump-7462b7aec90682ae.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-306930453d48610a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-7aaf0b20aaaa9397.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-9de6b0449828df49.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-1333d436663be352.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-1a959f44885e056e.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-a3763c5ead6d30fa.rmeta --extern ini=/opt/rustwide/target/debug/deps/libini-d9683b1914890045.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-fc7a3d744d57995d.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-794d43a3973cba22.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "71468b175eaefae1c7c0a3cfb2806ab46eda02ac2d89f69ac637d090d053f917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71468b175eaefae1c7c0a3cfb2806ab46eda02ac2d89f69ac637d090d053f917", kill_on_drop: false }`
[INFO] [stdout] 71468b175eaefae1c7c0a3cfb2806ab46eda02ac2d89f69ac637d090d053f917