[INFO] cloning repository https://github.com/abextm/class-annotator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abextm/class-annotator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabextm%2Fclass-annotator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabextm%2Fclass-annotator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20317446e7753217c1a26405ae349472f6bd0147
[INFO] documenting abextm/class-annotator 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%2Fabextm%2Fclass-annotator" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/abextm/class-annotator 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/abextm/class-annotator
[INFO] finished tweaking git repo https://github.com/abextm/class-annotator
[INFO] tweaked toml for git repo https://github.com/abextm/class-annotator written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/abextm/class-annotator 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 enum-kinds v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 5444994ddde87c184ae4355185b7ec3a0edba8ed531a76a11a66713b5443bd44
[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" "5444994ddde87c184ae4355185b7ec3a0edba8ed531a76a11a66713b5443bd44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5444994ddde87c184ae4355185b7ec3a0edba8ed531a76a11a66713b5443bd44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5444994ddde87c184ae4355185b7ec3a0edba8ed531a76a11a66713b5443bd44", kill_on_drop: false }`
[INFO] [stdout] 5444994ddde87c184ae4355185b7ec3a0edba8ed531a76a11a66713b5443bd44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] e88e0ae2c3b893a196e41f5c925ad761f1f72f53d7a383b0fc34c0ffaddadadb
[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" "e88e0ae2c3b893a196e41f5c925ad761f1f72f53d7a383b0fc34c0ffaddadadb", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking error-chain v0.12.2
[INFO] [stderr]    Compiling enum-kinds v0.4.1
[INFO] [stderr]  Documenting class-annotator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.19s
[INFO] running `Command { std: "docker" "inspect" "e88e0ae2c3b893a196e41f5c925ad761f1f72f53d7a383b0fc34c0ffaddadadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88e0ae2c3b893a196e41f5c925ad761f1f72f53d7a383b0fc34c0ffaddadadb", kill_on_drop: false }`
[INFO] [stdout] e88e0ae2c3b893a196e41f5c925ad761f1f72f53d7a383b0fc34c0ffaddadadb