[INFO] cloning repository https://github.com/zac-garby/mex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zac-garby/mex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzac-garby%2Fmex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzac-garby%2Fmex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e9c0b3f7a77a4fdb493b0eb1c7a48f3775fdf10
[INFO] documenting zac-garby/mex 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%2Fzac-garby%2Fmex" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zac-garby/mex 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/zac-garby/mex
[INFO] finished tweaking git repo https://github.com/zac-garby/mex
[INFO] tweaked toml for git repo https://github.com/zac-garby/mex written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/zac-garby/mex 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ac28fd6babdc1b39753df5ec7eace5f6bc39a73a898f317874b99fe63a2ff136
[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" "ac28fd6babdc1b39753df5ec7eace5f6bc39a73a898f317874b99fe63a2ff136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac28fd6babdc1b39753df5ec7eace5f6bc39a73a898f317874b99fe63a2ff136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac28fd6babdc1b39753df5ec7eace5f6bc39a73a898f317874b99fe63a2ff136", kill_on_drop: false }`
[INFO] [stdout] ac28fd6babdc1b39753df5ec7eace5f6bc39a73a898f317874b99fe63a2ff136
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 031d85f8934fecc60e82173ae94c1483da990d3d3e3fd56e97adaec67eb4b6d2
[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" "031d85f8934fecc60e82173ae94c1483da990d3d3e3fd56e97adaec67eb4b6d2", kill_on_drop: false }`
[INFO] [stderr]  Documenting mex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "031d85f8934fecc60e82173ae94c1483da990d3d3e3fd56e97adaec67eb4b6d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "031d85f8934fecc60e82173ae94c1483da990d3d3e3fd56e97adaec67eb4b6d2", kill_on_drop: false }`
[INFO] [stdout] 031d85f8934fecc60e82173ae94c1483da990d3d3e3fd56e97adaec67eb4b6d2