[INFO] cloning repository https://github.com/folkertdev/elm-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/folkertdev/elm-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffolkertdev%2Felm-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffolkertdev%2Felm-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2c8084e250deb99273b4b56ed7ab13bb20b6518
[INFO] documenting folkertdev/elm-bench 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%2Ffolkertdev%2Felm-bench" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/folkertdev/elm-bench 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/folkertdev/elm-bench
[INFO] finished tweaking git repo https://github.com/folkertdev/elm-bench
[INFO] tweaked toml for git repo https://github.com/folkertdev/elm-bench written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/folkertdev/elm-bench 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 pretty v0.10.0
[INFO] [stderr]   Downloaded pico-args v0.3.1
[INFO] [stderr]   Downloaded varj v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 00519f1dc7cdf73b55085f7d8f0604438464b32a5336d6c6bd792582045e5664
[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" "00519f1dc7cdf73b55085f7d8f0604438464b32a5336d6c6bd792582045e5664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00519f1dc7cdf73b55085f7d8f0604438464b32a5336d6c6bd792582045e5664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00519f1dc7cdf73b55085f7d8f0604438464b32a5336d6c6bd792582045e5664", kill_on_drop: false }`
[INFO] [stdout] 00519f1dc7cdf73b55085f7d8f0604438464b32a5336d6c6bd792582045e5664
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] a15f0912c95b5d1a08a0ab73666b6ff1ad12f7c7dfb584d954a0e606c212732f
[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" "a15f0912c95b5d1a08a0ab73666b6ff1ad12f7c7dfb584d954a0e606c212732f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking pico-args v0.3.1
[INFO] [stderr]     Checking varj v0.1.0
[INFO] [stderr]     Checking pathdiff v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.41
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling include_dir_impl v0.5.0
[INFO] [stderr]     Checking include_dir v0.5.0
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]  Documenting elm-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.63s
[INFO] running `Command { std: "docker" "inspect" "a15f0912c95b5d1a08a0ab73666b6ff1ad12f7c7dfb584d954a0e606c212732f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a15f0912c95b5d1a08a0ab73666b6ff1ad12f7c7dfb584d954a0e606c212732f", kill_on_drop: false }`
[INFO] [stdout] a15f0912c95b5d1a08a0ab73666b6ff1ad12f7c7dfb584d954a0e606c212732f