[INFO] fetching crate tokio-fs 0.1.7...
[INFO] documenting tokio-fs-0.1.7 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate tokio-fs 0.1.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tokio-fs 0.1.7 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-fs 0.1.7
[INFO] finished tweaking crates.io crate tokio-fs 0.1.7
[INFO] tweaked toml for crates.io crate tokio-fs 0.1.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate tokio-fs 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", 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] c92a1f81e65567122c20c1cae62db8904b0a074f3df174ad7b5cd2433752f390
[INFO] running `Command { std: "docker" "start" "-a" "c92a1f81e65567122c20c1cae62db8904b0a074f3df174ad7b5cd2433752f390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c92a1f81e65567122c20c1cae62db8904b0a074f3df174ad7b5cd2433752f390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c92a1f81e65567122c20c1cae62db8904b0a074f3df174ad7b5cd2433752f390", kill_on_drop: false }`
[INFO] [stdout] c92a1f81e65567122c20c1cae62db8904b0a074f3df174ad7b5cd2433752f390
[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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d13c3f2b33a4927c2759a2512e7e7ba82709a8305b261041ff8f8eab733104a
[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" "3d13c3f2b33a4927c2759a2512e7e7ba82709a8305b261041ff8f8eab733104a", kill_on_drop: false }`
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking tokio-executor v0.1.9
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]  Documenting tokio-fs v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `Command { std: "docker" "inspect" "3d13c3f2b33a4927c2759a2512e7e7ba82709a8305b261041ff8f8eab733104a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d13c3f2b33a4927c2759a2512e7e7ba82709a8305b261041ff8f8eab733104a", kill_on_drop: false }`
[INFO] [stdout] 3d13c3f2b33a4927c2759a2512e7e7ba82709a8305b261041ff8f8eab733104a