[INFO] fetching crate log4rs-rolling-file 0.2.0...
[INFO] documenting log4rs-rolling-file-0.2.0 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate log4rs-rolling-file 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate log4rs-rolling-file 0.2.0 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 log4rs-rolling-file 0.2.0
[INFO] finished tweaking crates.io crate log4rs-rolling-file 0.2.0
[INFO] tweaked toml for crates.io crate log4rs-rolling-file 0.2.0 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] dea0682282bfb7160c5fe8c1aca04407e6f864c969876fef83f7fe9a8e8f84a4
[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" "dea0682282bfb7160c5fe8c1aca04407e6f864c969876fef83f7fe9a8e8f84a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dea0682282bfb7160c5fe8c1aca04407e6f864c969876fef83f7fe9a8e8f84a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dea0682282bfb7160c5fe8c1aca04407e6f864c969876fef83f7fe9a8e8f84a4", kill_on_drop: false }`
[INFO] [stdout] dea0682282bfb7160c5fe8c1aca04407e6f864c969876fef83f7fe9a8e8f84a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] ab350411d6c047773ff5671124d698ca670784b9d3f64b8c20ce66f4322a57a8
[INFO] running `Command { std: "docker" "start" "-a" "ab350411d6c047773ff5671124d698ca670784b9d3f64b8c20ce66f4322a57a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking humantime v0.1.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking serde_yaml v0.2.5
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking ordered-float v0.1.0
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking serde-value v0.2.1
[INFO] [stderr]     Checking log4rs v0.4.8
[INFO] [stderr]  Documenting log4rs-rolling-file v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.55s
[INFO] running `Command { std: "docker" "inspect" "ab350411d6c047773ff5671124d698ca670784b9d3f64b8c20ce66f4322a57a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab350411d6c047773ff5671124d698ca670784b9d3f64b8c20ce66f4322a57a8", kill_on_drop: false }`
[INFO] [stdout] ab350411d6c047773ff5671124d698ca670784b9d3f64b8c20ce66f4322a57a8