[INFO] crate stcat 0.2.3 is already in cache
[INFO] documenting stcat-0.2.3 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate stcat 0.2.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stcat 0.2.3 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 stcat 0.2.3
[INFO] finished tweaking crates.io crate stcat 0.2.3
[INFO] tweaked toml for crates.io crate stcat 0.2.3 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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-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] 9916707ed3dc81ee83d87dc663cf1f9f8ba25c14e85afd4d5d784a5a4bd040f9
[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" "9916707ed3dc81ee83d87dc663cf1f9f8ba25c14e85afd4d5d784a5a4bd040f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9916707ed3dc81ee83d87dc663cf1f9f8ba25c14e85afd4d5d784a5a4bd040f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9916707ed3dc81ee83d87dc663cf1f9f8ba25c14e85afd4d5d784a5a4bd040f9", kill_on_drop: false }`
[INFO] [stdout] 9916707ed3dc81ee83d87dc663cf1f9f8ba25c14e85afd4d5d784a5a4bd040f9
[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] b38ca1ca1c17572d0a7c2bc72c6d1c7f9bdf14938b69cd079c67618363e94f8b
[INFO] running `Command { std: "docker" "start" "-a" "b38ca1ca1c17572d0a7c2bc72c6d1c7f9bdf14938b69cd079c67618363e94f8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking zero v0.1.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]     Checking xmas-elf v0.6.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]     Checking slog-stdlog v3.0.5
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking slog-kvfilter v0.6.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking slog-term v2.6.0
[INFO] [stderr]     Checking sloggers v0.2.9
[INFO] [stderr]  Documenting stcat v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.34s
[INFO] running `Command { std: "docker" "inspect" "b38ca1ca1c17572d0a7c2bc72c6d1c7f9bdf14938b69cd079c67618363e94f8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b38ca1ca1c17572d0a7c2bc72c6d1c7f9bdf14938b69cd079c67618363e94f8b", kill_on_drop: false }`
[INFO] [stdout] b38ca1ca1c17572d0a7c2bc72c6d1c7f9bdf14938b69cd079c67618363e94f8b