[INFO] cloning repository https://github.com/k3d3/Roam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k3d3/Roam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk3d3%2FRoam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk3d3%2FRoam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46ad5b2474881327998af51f011b83fdfa7260b9
[INFO] documenting k3d3/Roam 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%2Fk3d3%2FRoam" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k3d3/Roam 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/k3d3/Roam
[INFO] finished tweaking git repo https://github.com/k3d3/Roam
[INFO] tweaked toml for git repo https://github.com/k3d3/Roam written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/k3d3/Roam 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 net2 v0.2.27
[INFO] [stderr]   Downloaded base64 v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 5a891022cf7a91e7498028d6a1233d693a8f6195f011d55cf1b4c9b57cc36cd1
[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" "5a891022cf7a91e7498028d6a1233d693a8f6195f011d55cf1b4c9b57cc36cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a891022cf7a91e7498028d6a1233d693a8f6195f011d55cf1b4c9b57cc36cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a891022cf7a91e7498028d6a1233d693a8f6195f011d55cf1b4c9b57cc36cd1", kill_on_drop: false }`
[INFO] [stdout] 5a891022cf7a91e7498028d6a1233d693a8f6195f011d55cf1b4c9b57cc36cd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 3b2ea6d72b759673fb6d86aedc3644325f12382ca6c0955c79839e484e5fb5ec
[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" "3b2ea6d72b759673fb6d86aedc3644325f12382ca6c0955c79839e484e5fb5ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking bitflags v0.8.0
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking serde v0.9.11
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]     Checking base64 v0.4.0
[INFO] [stderr]    Compiling syn v0.11.9
[INFO] [stderr]     Checking futures v0.1.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking net2 v0.2.27
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking clap v2.21.1
[INFO] [stderr]     Checking mio v0.6.4
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking tokio-core v0.1.4
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.1
[INFO] [stderr]     Checking tokio-proto v0.1.0
[INFO] [stderr]    Compiling serde_derive v0.9.11
[INFO] [stderr]     Checking serde_json v0.9.9
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]  Documenting roam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.80s
[INFO] running `Command { std: "docker" "inspect" "3b2ea6d72b759673fb6d86aedc3644325f12382ca6c0955c79839e484e5fb5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b2ea6d72b759673fb6d86aedc3644325f12382ca6c0955c79839e484e5fb5ec", kill_on_drop: false }`
[INFO] [stdout] 3b2ea6d72b759673fb6d86aedc3644325f12382ca6c0955c79839e484e5fb5ec