[INFO] fetching crate big-brain 0.0.1...
[INFO] documenting big-brain-0.0.1 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate big-brain 0.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate big-brain 0.0.1 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 crates.io crate big-brain 0.0.1
[INFO] finished tweaking crates.io crate big-brain 0.0.1
[INFO] tweaked toml for crates.io crate big-brain 0.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] 506d6e0e4ff315fa0095067938d5b78036f871409b4f9f27ce05b483ffdf201c
[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" "506d6e0e4ff315fa0095067938d5b78036f871409b4f9f27ce05b483ffdf201c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "506d6e0e4ff315fa0095067938d5b78036f871409b4f9f27ce05b483ffdf201c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "506d6e0e4ff315fa0095067938d5b78036f871409b4f9f27ce05b483ffdf201c", kill_on_drop: false }`
[INFO] [stdout] 506d6e0e4ff315fa0095067938d5b78036f871409b4f9f27ce05b483ffdf201c
[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] [stdout] 54d4c97143a5190b0d5f80d11d79222b3c5926e572a80e9b78ee811a538fb379
[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" "54d4c97143a5190b0d5f80d11d79222b3c5926e572a80e9b78ee811a538fb379", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling inventory v0.1.7
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tynm v0.1.4
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling inventory-impl v0.1.7
[INFO] [stderr]    Compiling shred-derive v0.6.2
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling typetag-impl v0.1.5
[INFO] [stderr]     Checking shred v0.10.2
[INFO] [stderr]     Checking specs v0.16.1
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking typetag v0.1.5
[INFO] [stderr]  Documenting big-brain v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.03s
[INFO] running `Command { std: "docker" "inspect" "54d4c97143a5190b0d5f80d11d79222b3c5926e572a80e9b78ee811a538fb379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54d4c97143a5190b0d5f80d11d79222b3c5926e572a80e9b78ee811a538fb379", kill_on_drop: false }`
[INFO] [stdout] 54d4c97143a5190b0d5f80d11d79222b3c5926e572a80e9b78ee811a538fb379