[INFO] fetching crate trie-bench 0.25.0...
[INFO] documenting trie-bench-0.25.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate trie-bench 0.25.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate trie-bench 0.25.0 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 trie-bench 0.25.0
[INFO] finished tweaking crates.io crate trie-bench 0.25.0
[INFO] tweaked toml for crates.io crate trie-bench 0.25.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] d4cdd8958a90da4395b1b761a2c1b3eb2c5c5c97e50e8b3808b02c7df468e7bb
[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" "d4cdd8958a90da4395b1b761a2c1b3eb2c5c5c97e50e8b3808b02c7df468e7bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4cdd8958a90da4395b1b761a2c1b3eb2c5c5c97e50e8b3808b02c7df468e7bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4cdd8958a90da4395b1b761a2c1b3eb2c5c5c97e50e8b3808b02c7df468e7bb", kill_on_drop: false }`
[INFO] [stdout] d4cdd8958a90da4395b1b761a2c1b3eb2c5c5c97e50e8b3808b02c7df468e7bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 76f8fd584c0e4b43bde7d94935fd428080ff486a3d1713cf33153175feee0b4e
[INFO] running `Command { std: "docker" "start" "-a" "76f8fd584c0e4b43bde7d94935fd428080ff486a3d1713cf33153175feee0b4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling parity-util-mem v0.7.0
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stderr]     Checking tiny-keccak v2.0.2
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking trie-db v0.22.1
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking keccak-hasher v0.15.3
[INFO] [stderr]     Checking trie-standardmap v0.15.2
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking parity-scale-codec v1.3.4
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking memory-db v0.24.1
[INFO] [stderr]  Documenting trie-bench v0.25.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.08s
[INFO] running `Command { std: "docker" "inspect" "76f8fd584c0e4b43bde7d94935fd428080ff486a3d1713cf33153175feee0b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f8fd584c0e4b43bde7d94935fd428080ff486a3d1713cf33153175feee0b4e", kill_on_drop: false }`
[INFO] [stdout] 76f8fd584c0e4b43bde7d94935fd428080ff486a3d1713cf33153175feee0b4e