[INFO] cloning repository https://github.com/akars/lazy-pregen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akars/lazy-pregen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakars%2Flazy-pregen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakars%2Flazy-pregen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e27f9f4dc0b7e4ce710704dcee836514bf31689
[INFO] documenting akars/lazy-pregen 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%2Fakars%2Flazy-pregen" "/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/akars/lazy-pregen 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/akars/lazy-pregen
[INFO] finished tweaking git repo https://github.com/akars/lazy-pregen
[INFO] tweaked toml for git repo https://github.com/akars/lazy-pregen written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/akars/lazy-pregen 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 ctrlc v3.1.1
[INFO] [stderr]   Downloaded chrono v0.4.4
[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] dd6091aa0d86b628c604db02f26d64ae8f3f8123d5607b8452f9581a9f681772
[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" "dd6091aa0d86b628c604db02f26d64ae8f3f8123d5607b8452f9581a9f681772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd6091aa0d86b628c604db02f26d64ae8f3f8123d5607b8452f9581a9f681772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd6091aa0d86b628c604db02f26d64ae8f3f8123d5607b8452f9581a9f681772", kill_on_drop: false }`
[INFO] [stdout] dd6091aa0d86b628c604db02f26d64ae8f3f8123d5607b8452f9581a9f681772
[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] 806a36cf6f31c51044609e4b4a69cc8fbb858f09582043f8554daba178a68d11
[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" "806a36cf6f31c51044609e4b4a69cc8fbb858f09582043f8554daba178a68d11", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.8
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking fern v0.5.6
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking chrono v0.4.4
[INFO] [stderr]     Checking ctrlc v3.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]  Documenting lazy-pregen v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.33s
[INFO] running `Command { std: "docker" "inspect" "806a36cf6f31c51044609e4b4a69cc8fbb858f09582043f8554daba178a68d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "806a36cf6f31c51044609e4b4a69cc8fbb858f09582043f8554daba178a68d11", kill_on_drop: false }`
[INFO] [stdout] 806a36cf6f31c51044609e4b4a69cc8fbb858f09582043f8554daba178a68d11