[INFO] cloning repository https://github.com/quebin31/bench-which-ichwh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quebin31/bench-which-ichwh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquebin31%2Fbench-which-ichwh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquebin31%2Fbench-which-ichwh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ce324e029bb701c933564fa224155cab844e7dc
[INFO] documenting quebin31/bench-which-ichwh 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%2Fquebin31%2Fbench-which-ichwh" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quebin31/bench-which-ichwh 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/quebin31/bench-which-ichwh
[INFO] finished tweaking git repo https://github.com/quebin31/bench-which-ichwh
[INFO] tweaked toml for git repo https://github.com/quebin31/bench-which-ichwh written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/quebin31/bench-which-ichwh 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 async-attributes v1.1.1
[INFO] [stderr]   Downloaded ichwh v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2816cfdda5ead2936d8d8178636c7f8e1d4f0b894ae252c29291a8d0939373aa
[INFO] running `Command { std: "docker" "start" "-a" "2816cfdda5ead2936d8d8178636c7f8e1d4f0b894ae252c29291a8d0939373aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2816cfdda5ead2936d8d8178636c7f8e1d4f0b894ae252c29291a8d0939373aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2816cfdda5ead2936d8d8178636c7f8e1d4f0b894ae252c29291a8d0939373aa", kill_on_drop: false }`
[INFO] [stdout] 2816cfdda5ead2936d8d8178636c7f8e1d4f0b894ae252c29291a8d0939373aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] bc1d565149af4b2687427f5aa0606a45887133a381215d23e1697e5d047e6915
[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" "bc1d565149af4b2687427f5aa0606a45887133a381215d23e1697e5d047e6915", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking thiserror v1.0.15
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking ichwh v0.3.4
[INFO] [stderr]  Documenting bench-which-ihcwh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.56s
[INFO] running `Command { std: "docker" "inspect" "bc1d565149af4b2687427f5aa0606a45887133a381215d23e1697e5d047e6915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc1d565149af4b2687427f5aa0606a45887133a381215d23e1697e5d047e6915", kill_on_drop: false }`
[INFO] [stdout] bc1d565149af4b2687427f5aa0606a45887133a381215d23e1697e5d047e6915