[INFO] cloning repository https://github.com/JanMH/mi5-coding-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JanMH/mi5-coding-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanMH%2Fmi5-coding-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanMH%2Fmi5-coding-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5e688f96c71d0a84304d0b4d788dbe8abdc27d0
[INFO] documenting JanMH/mi5-coding-challenge 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%2FJanMH%2Fmi5-coding-challenge" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JanMH/mi5-coding-challenge 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/JanMH/mi5-coding-challenge
[INFO] finished tweaking git repo https://github.com/JanMH/mi5-coding-challenge
[INFO] tweaked toml for git repo https://github.com/JanMH/mi5-coding-challenge written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/JanMH/mi5-coding-challenge 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]  Downloading crates ...
[INFO] [stderr]   Downloaded gcc v0.3.35
[INFO] [stderr]   Downloaded image v0.10.3
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.6
[INFO] [stderr]   Downloaded rayon v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e3f9e1a7bec195dc7bd6f083316c690f78461ec2c3f98861df8722e2c062f986
[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" "e3f9e1a7bec195dc7bd6f083316c690f78461ec2c3f98861df8722e2c062f986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3f9e1a7bec195dc7bd6f083316c690f78461ec2c3f98861df8722e2c062f986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3f9e1a7bec195dc7bd6f083316c690f78461ec2c3f98861df8722e2c062f986", kill_on_drop: false }`
[INFO] [stdout] e3f9e1a7bec195dc7bd6f083316c690f78461ec2c3f98861df8722e2c062f986
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 8240b1d9685a9eed1c7cc7c3a3d2c46d95ef24f6a8b68820994c2755e41c4a02
[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" "8240b1d9685a9eed1c7cc7c3a3d2c46d95ef24f6a8b68820994c2755e41c4a02", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.35
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking num v0.1.35
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]     Checking rayon v0.4.0
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking jpeg-decoder v0.1.6
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8240b1d9685a9eed1c7cc7c3a3d2c46d95ef24f6a8b68820994c2755e41c4a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8240b1d9685a9eed1c7cc7c3a3d2c46d95ef24f6a8b68820994c2755e41c4a02", kill_on_drop: false }`
[INFO] [stdout] 8240b1d9685a9eed1c7cc7c3a3d2c46d95ef24f6a8b68820994c2755e41c4a02