[INFO] fetching crate tin-summer 1.21.13...
[INFO] documenting tin-summer-1.21.13 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate tin-summer 1.21.13 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tin-summer 1.21.13 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] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking crates.io crate tin-summer 1.21.13
[INFO] finished tweaking crates.io crate tin-summer 1.21.13
[INFO] tweaked toml for crates.io crate tin-summer 1.21.13 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate tin-summer 1.21.13 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]  Downloading crates ...
[INFO] [stderr]   Downloaded colored v1.9.1
[INFO] [stderr]   Downloaded cli-setup v0.2.6
[INFO] [stderr]   Downloaded pad v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 0b99b0eb4d4f1aaf317647dd57be1b7984125f00c9ac44d1ad11563bc1a0a3d6
[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" "0b99b0eb4d4f1aaf317647dd57be1b7984125f00c9ac44d1ad11563bc1a0a3d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b99b0eb4d4f1aaf317647dd57be1b7984125f00c9ac44d1ad11563bc1a0a3d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b99b0eb4d4f1aaf317647dd57be1b7984125f00c9ac44d1ad11563bc1a0a3d6", kill_on_drop: false }`
[INFO] [stdout] 0b99b0eb4d4f1aaf317647dd57be1b7984125f00c9ac44d1ad11563bc1a0a3d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c75331863a0615ba5cd62c5aa601b6f4379ef692ccae61e71fb8f06060846f65
[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" "c75331863a0615ba5cd62c5aa601b6f4379ef692ccae61e71fb8f06060846f65", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking pad v0.1.6
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking colored v1.9.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling cli-setup v0.2.6
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling tin-summer v1.21.13 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting tin-summer v1.21.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.55s
[INFO] running `Command { std: "docker" "inspect" "c75331863a0615ba5cd62c5aa601b6f4379ef692ccae61e71fb8f06060846f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75331863a0615ba5cd62c5aa601b6f4379ef692ccae61e71fb8f06060846f65", kill_on_drop: false }`
[INFO] [stdout] c75331863a0615ba5cd62c5aa601b6f4379ef692ccae61e71fb8f06060846f65