[INFO] updating cached repository https://github.com/euwbah/rusty-brain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7030e519ebd1fdbee7d82273bc214cf32d29ee50
[INFO] documenting euwbah/rusty-brain against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuwbah%2Frusty-brain" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/euwbah/rusty-brain on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/euwbah/rusty-brain
[INFO] finished tweaking git repo https://github.com/euwbah/rusty-brain
[INFO] tweaked toml for git repo https://github.com/euwbah/rusty-brain written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/euwbah/rusty-brain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c65c9d9d8f6e2fbbdede379e70e4e2c7866da6bf303e2444c626899abf0fbe0
[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" "4c65c9d9d8f6e2fbbdede379e70e4e2c7866da6bf303e2444c626899abf0fbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c65c9d9d8f6e2fbbdede379e70e4e2c7866da6bf303e2444c626899abf0fbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c65c9d9d8f6e2fbbdede379e70e4e2c7866da6bf303e2444c626899abf0fbe0", kill_on_drop: false }`
[INFO] [stdout] 4c65c9d9d8f6e2fbbdede379e70e4e2c7866da6bf303e2444c626899abf0fbe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 1b1f7cf513ac19616df800dff96d35f7ed67166cdd85b3417076e74025bb291f
[INFO] running `Command { std: "docker" "start" "-a" "1b1f7cf513ac19616df800dff96d35f7ed67166cdd85b3417076e74025bb291f", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling ndarray v0.12.0
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]  Documenting neural-network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.55s
[INFO] running `Command { std: "docker" "inspect" "1b1f7cf513ac19616df800dff96d35f7ed67166cdd85b3417076e74025bb291f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b1f7cf513ac19616df800dff96d35f7ed67166cdd85b3417076e74025bb291f", kill_on_drop: false }`
[INFO] [stdout] 1b1f7cf513ac19616df800dff96d35f7ed67166cdd85b3417076e74025bb291f