[INFO] fetching crate riffol 0.3.0...
[INFO] documenting riffol-0.3.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate riffol 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate riffol 0.3.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate riffol 0.3.0
[INFO] finished tweaking crates.io crate riffol 0.3.0
[INFO] tweaked toml for crates.io crate riffol 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48b124995da731ebb6cc6274be7e37d89741485ddc00d580cf79578489bbd050
[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" "48b124995da731ebb6cc6274be7e37d89741485ddc00d580cf79578489bbd050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48b124995da731ebb6cc6274be7e37d89741485ddc00d580cf79578489bbd050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b124995da731ebb6cc6274be7e37d89741485ddc00d580cf79578489bbd050", kill_on_drop: false }`
[INFO] [stdout] 48b124995da731ebb6cc6274be7e37d89741485ddc00d580cf79578489bbd050
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.46.0" "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] 4b68cff2f6ae2899f75cc14be84acf85ad8c499bbaa22a60d3f095921d30b8c6
[INFO] running `Command { std: "docker" "start" "-a" "4b68cff2f6ae2899f75cc14be84acf85ad8c499bbaa22a60d3f095921d30b8c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking syslog v4.0.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]    Compiling nereon_derive v0.4.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking nereon v0.4.4
[INFO] [stderr]  Documenting riffol v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.90s
[INFO] running `Command { std: "docker" "inspect" "4b68cff2f6ae2899f75cc14be84acf85ad8c499bbaa22a60d3f095921d30b8c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b68cff2f6ae2899f75cc14be84acf85ad8c499bbaa22a60d3f095921d30b8c6", kill_on_drop: false }`
[INFO] [stdout] 4b68cff2f6ae2899f75cc14be84acf85ad8c499bbaa22a60d3f095921d30b8c6