[INFO] cloning repository https://github.com/ameliorater/rust-mastermind
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ameliorater/rust-mastermind" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fameliorater%2Frust-mastermind", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fameliorater%2Frust-mastermind'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17e1e76c9acaae39c16fef7db02336d123929f23
[INFO] documenting ameliorater/rust-mastermind 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%2Fameliorater%2Frust-mastermind" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ameliorater/rust-mastermind 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/ameliorater/rust-mastermind
[INFO] finished tweaking git repo https://github.com/ameliorater/rust-mastermind
[INFO] tweaked toml for git repo https://github.com/ameliorater/rust-mastermind written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ameliorater/rust-mastermind 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4fff32d8c88b975926313766011546eab3a1fb8a6a20df4dc67ea5be4ee5fc4b
[INFO] running `Command { std: "docker" "start" "-a" "4fff32d8c88b975926313766011546eab3a1fb8a6a20df4dc67ea5be4ee5fc4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fff32d8c88b975926313766011546eab3a1fb8a6a20df4dc67ea5be4ee5fc4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fff32d8c88b975926313766011546eab3a1fb8a6a20df4dc67ea5be4ee5fc4b", kill_on_drop: false }`
[INFO] [stdout] 4fff32d8c88b975926313766011546eab3a1fb8a6a20df4dc67ea5be4ee5fc4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 61a564c24c54d923f17e07108c6368954c307dccbf2c305917beaaf5ff7c17bd
[INFO] running `Command { std: "docker" "start" "-a" "61a564c24c54d923f17e07108c6368954c307dccbf2c305917beaaf5ff7c17bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]  Documenting rust-mastermind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.10s
[INFO] running `Command { std: "docker" "inspect" "61a564c24c54d923f17e07108c6368954c307dccbf2c305917beaaf5ff7c17bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61a564c24c54d923f17e07108c6368954c307dccbf2c305917beaaf5ff7c17bd", kill_on_drop: false }`
[INFO] [stdout] 61a564c24c54d923f17e07108c6368954c307dccbf2c305917beaaf5ff7c17bd