[INFO] cloning repository https://github.com/nickbabcock/rrrocket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nickbabcock/rrrocket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickbabcock%2Frrrocket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickbabcock%2Frrrocket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1fff052551356744dd3f865d855b8312d95d278e
[INFO] documenting nickbabcock/rrrocket 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%2Fnickbabcock%2Frrrocket" "/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/nickbabcock/rrrocket 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/nickbabcock/rrrocket
[INFO] finished tweaking git repo https://github.com/nickbabcock/rrrocket
[INFO] tweaked toml for git repo https://github.com/nickbabcock/rrrocket written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nickbabcock/rrrocket 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 float-cmp v0.8.0
[INFO] [stderr]   Downloaded if_chain v1.0.0
[INFO] [stderr]   Downloaded snafu v0.6.8
[INFO] [stderr]   Downloaded snafu-derive v0.6.8
[INFO] [stderr]   Downloaded structopt-derive v0.4.9
[INFO] [stderr]   Downloaded boxcars v0.8.2
[INFO] [stderr]   Downloaded predicates v1.0.5
[INFO] [stderr]   Downloaded structopt v0.3.16
[INFO] [stderr]   Downloaded bitter v0.4.0
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0e904d3d2ef12536ef63c0ef6e7faf8dd212f09799dde035074f9a59defe748c
[INFO] running `Command { std: "docker" "start" "-a" "0e904d3d2ef12536ef63c0ef6e7faf8dd212f09799dde035074f9a59defe748c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e904d3d2ef12536ef63c0ef6e7faf8dd212f09799dde035074f9a59defe748c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e904d3d2ef12536ef63c0ef6e7faf8dd212f09799dde035074f9a59defe748c", kill_on_drop: false }`
[INFO] [stdout] 0e904d3d2ef12536ef63c0ef6e7faf8dd212f09799dde035074f9a59defe748c
[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] 9724eaa263730f734e74328e3f2a9c41a9a1c9da3dc348a7bcb35f74cdcc4cb8
[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" "9724eaa263730f734e74328e3f2a9c41a9a1c9da3dc348a7bcb35f74cdcc4cb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling boxcars v0.8.2
[INFO] [stderr]     Checking bitter v0.4.0
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling snafu-derive v0.6.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking rayon v1.4.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking snafu v0.6.8
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]  Documenting rrrocket v0.8.3-pre (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.69s
[INFO] running `Command { std: "docker" "inspect" "9724eaa263730f734e74328e3f2a9c41a9a1c9da3dc348a7bcb35f74cdcc4cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9724eaa263730f734e74328e3f2a9c41a9a1c9da3dc348a7bcb35f74cdcc4cb8", kill_on_drop: false }`
[INFO] [stdout] 9724eaa263730f734e74328e3f2a9c41a9a1c9da3dc348a7bcb35f74cdcc4cb8