[INFO] fetching crate hdrhistogram 7.1.0...
[INFO] documenting hdrhistogram-7.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate hdrhistogram 7.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate hdrhistogram 7.1.0 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 hdrhistogram 7.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hdrhistogram 7.1.0
[INFO] tweaked toml for crates.io crate hdrhistogram 7.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate hdrhistogram 7.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded az v0.3.1
[INFO] [stderr]   Downloaded rug v1.8.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.2.2
[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] [stdout] 10eb8bb1b17cdab93b810a22e36788d9825f7f249e1e25478116ba0f81481f0d
[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" "10eb8bb1b17cdab93b810a22e36788d9825f7f249e1e25478116ba0f81481f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10eb8bb1b17cdab93b810a22e36788d9825f7f249e1e25478116ba0f81481f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10eb8bb1b17cdab93b810a22e36788d9825f7f249e1e25478116ba0f81481f0d", kill_on_drop: false }`
[INFO] [stdout] 10eb8bb1b17cdab93b810a22e36788d9825f7f249e1e25478116ba0f81481f0d
[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] f7050a23fa413f929709421884d96e868c6ad4b87e5d8ccd7a5ff8f31c90bf26
[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" "f7050a23fa413f929709421884d96e868c6ad4b87e5d8ccd7a5ff8f31c90bf26", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]  Documenting hdrhistogram v7.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.23s
[INFO] running `Command { std: "docker" "inspect" "f7050a23fa413f929709421884d96e868c6ad4b87e5d8ccd7a5ff8f31c90bf26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7050a23fa413f929709421884d96e868c6ad4b87e5d8ccd7a5ff8f31c90bf26", kill_on_drop: false }`
[INFO] [stdout] f7050a23fa413f929709421884d96e868c6ad4b87e5d8ccd7a5ff8f31c90bf26