[INFO] updating cached repository https://github.com/MaguroChicken/YMM4_Encoder
[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] 9a33747451aecc852ebb30685003edeea87acca0
[INFO] documenting MaguroChicken/YMM4_Encoder against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaguroChicken%2FYMM4_Encoder" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MaguroChicken/YMM4_Encoder 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/MaguroChicken/YMM4_Encoder
[INFO] finished tweaking git repo https://github.com/MaguroChicken/YMM4_Encoder
[INFO] tweaked toml for git repo https://github.com/MaguroChicken/YMM4_Encoder written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/MaguroChicken/YMM4_Encoder 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f61fc3ff6046b167afc73e5c5784e0cf819484ca8fe425270bf43e7994339c60
[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" "f61fc3ff6046b167afc73e5c5784e0cf819484ca8fe425270bf43e7994339c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f61fc3ff6046b167afc73e5c5784e0cf819484ca8fe425270bf43e7994339c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f61fc3ff6046b167afc73e5c5784e0cf819484ca8fe425270bf43e7994339c60", kill_on_drop: false }`
[INFO] [stdout] f61fc3ff6046b167afc73e5c5784e0cf819484ca8fe425270bf43e7994339c60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] edc4779a890096a574bf8333cae7fa4bbe940ad682b98c3fe618bd1ef4305bd1
[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" "edc4779a890096a574bf8333cae7fa4bbe940ad682b98c3fe618bd1ef4305bd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking encoding_rs v0.8.17
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]  Documenting YMM4_encoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.05s
[INFO] running `Command { std: "docker" "inspect" "edc4779a890096a574bf8333cae7fa4bbe940ad682b98c3fe618bd1ef4305bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edc4779a890096a574bf8333cae7fa4bbe940ad682b98c3fe618bd1ef4305bd1", kill_on_drop: false }`
[INFO] [stdout] edc4779a890096a574bf8333cae7fa4bbe940ad682b98c3fe618bd1ef4305bd1