[INFO] fetching crate quackin 0.1.1...
[INFO] documenting quackin-0.1.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate quackin 0.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate quackin 0.1.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quackin 0.1.1
[INFO] finished tweaking crates.io crate quackin 0.1.1
[INFO] tweaked toml for crates.io crate quackin 0.1.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray v0.6.10
[INFO] [stderr]   Downloaded sprs v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef09cc19bb0ab61a79f55b13540f38f0e84b0c60739af675969f75b2fca33d12
[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" "ef09cc19bb0ab61a79f55b13540f38f0e84b0c60739af675969f75b2fca33d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef09cc19bb0ab61a79f55b13540f38f0e84b0c60739af675969f75b2fca33d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef09cc19bb0ab61a79f55b13540f38f0e84b0c60739af675969f75b2fca33d12", kill_on_drop: false }`
[INFO] [stdout] ef09cc19bb0ab61a79f55b13540f38f0e84b0c60739af675969f75b2fca33d12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3510bc2d05fd7ef33b09ee26e1c6a4ff593817bead00c7b53eb5174a7b4cac9
[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" "e3510bc2d05fd7ef33b09ee26e1c6a4ff593817bead00c7b53eb5174a7b4cac9", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.6.10
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking sprs v0.4.1
[INFO] [stderr]  Documenting quackin v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/recommender/mod.rs:40:48
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut pre_vectors = HashMap::<usize, (BTreeMap<usize, f64>)>::new();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.58s
[INFO] running `Command { std: "docker" "inspect" "e3510bc2d05fd7ef33b09ee26e1c6a4ff593817bead00c7b53eb5174a7b4cac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3510bc2d05fd7ef33b09ee26e1c6a4ff593817bead00c7b53eb5174a7b4cac9", kill_on_drop: false }`
[INFO] [stdout] e3510bc2d05fd7ef33b09ee26e1c6a4ff593817bead00c7b53eb5174a7b4cac9
