[INFO] cloning repository https://github.com/roynalnaruto/rs_merkle_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roynalnaruto/rs_merkle_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froynalnaruto%2Frs_merkle_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froynalnaruto%2Frs_merkle_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62324ec83f33a6413fa0dead25dcb1d18e6ff2da
[INFO] documenting roynalnaruto/rs_merkle_tree 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%2Froynalnaruto%2Frs_merkle_tree" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roynalnaruto/rs_merkle_tree 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/roynalnaruto/rs_merkle_tree
[INFO] finished tweaking git repo https://github.com/roynalnaruto/rs_merkle_tree
[INFO] tweaked toml for git repo https://github.com/roynalnaruto/rs_merkle_tree written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/roynalnaruto/rs_merkle_tree 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 44fcfb560121dac2e09521331dc4a7b36863456836b9bfed715e9b6748c54070
[INFO] running `Command { std: "docker" "start" "-a" "44fcfb560121dac2e09521331dc4a7b36863456836b9bfed715e9b6748c54070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44fcfb560121dac2e09521331dc4a7b36863456836b9bfed715e9b6748c54070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44fcfb560121dac2e09521331dc4a7b36863456836b9bfed715e9b6748c54070", kill_on_drop: false }`
[INFO] [stdout] 44fcfb560121dac2e09521331dc4a7b36863456836b9bfed715e9b6748c54070
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] b3bbb676de701e19b9352e8bfbc8336c4986c9acd2a383dc924ae1d45e15bf6e
[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" "b3bbb676de701e19b9352e8bfbc8336c4986c9acd2a383dc924ae1d45e15bf6e", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]  Documenting merkle_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.22s
[INFO] running `Command { std: "docker" "inspect" "b3bbb676de701e19b9352e8bfbc8336c4986c9acd2a383dc924ae1d45e15bf6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3bbb676de701e19b9352e8bfbc8336c4986c9acd2a383dc924ae1d45e15bf6e", kill_on_drop: false }`
[INFO] [stdout] b3bbb676de701e19b9352e8bfbc8336c4986c9acd2a383dc924ae1d45e15bf6e