[INFO] cloning repository https://github.com/magodo/grop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/magodo/grop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagodo%2Fgrop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagodo%2Fgrop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c4513020ba075c2b9b05befad50f1675cc9b844
[INFO] documenting magodo/grop against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagodo%2Fgrop" "/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/magodo/grop on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/magodo/grop
[INFO] finished tweaking git repo https://github.com/magodo/grop
[INFO] tweaked toml for git repo https://github.com/magodo/grop written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/magodo/grop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b02aa1aff41bc8cc80959a8269aad6d8784354661d5e1813af13cd2e44924ca1
[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" "b02aa1aff41bc8cc80959a8269aad6d8784354661d5e1813af13cd2e44924ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b02aa1aff41bc8cc80959a8269aad6d8784354661d5e1813af13cd2e44924ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02aa1aff41bc8cc80959a8269aad6d8784354661d5e1813af13cd2e44924ca1", kill_on_drop: false }`
[INFO] [stdout] b02aa1aff41bc8cc80959a8269aad6d8784354661d5e1813af13cd2e44924ca1
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 9c51cce0c0cefa40df9634b717e6145614e4d5dc72121a82046cc57e58a73a1d
[INFO] running `Command { std: "docker" "start" "-a" "9c51cce0c0cefa40df9634b717e6145614e4d5dc72121a82046cc57e58a73a1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling grok v1.1.0
[INFO] [stderr]    Compiling fgrok v1.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]    Compiling addr2line v0.12.0
[INFO] [stderr]    Compiling backtrace v0.3.47
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]    Compiling onig_sys v69.2.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking onig v5.0.0
[INFO] [stderr]  Documenting grop v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 04s
[INFO] running `Command { std: "docker" "inspect" "9c51cce0c0cefa40df9634b717e6145614e4d5dc72121a82046cc57e58a73a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c51cce0c0cefa40df9634b717e6145614e4d5dc72121a82046cc57e58a73a1d", kill_on_drop: false }`
[INFO] [stdout] 9c51cce0c0cefa40df9634b717e6145614e4d5dc72121a82046cc57e58a73a1d