[INFO] fetching crate vgmdb-rust 0.2.1...
[INFO] documenting vgmdb-rust-0.2.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate vgmdb-rust 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate vgmdb-rust 0.2.1 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 vgmdb-rust 0.2.1
[INFO] finished tweaking crates.io crate vgmdb-rust 0.2.1
[INFO] tweaked toml for crates.io crate vgmdb-rust 0.2.1 written to /workspace/builds/worker-5/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] bcacc80e6ed733d9860de5af0cabf555135fc2c106b56ecc0a809768eb0e35c2
[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" "bcacc80e6ed733d9860de5af0cabf555135fc2c106b56ecc0a809768eb0e35c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcacc80e6ed733d9860de5af0cabf555135fc2c106b56ecc0a809768eb0e35c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcacc80e6ed733d9860de5af0cabf555135fc2c106b56ecc0a809768eb0e35c2", kill_on_drop: false }`
[INFO] [stdout] bcacc80e6ed733d9860de5af0cabf555135fc2c106b56ecc0a809768eb0e35c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 86c1d712fbaf281a81057e58a2bb952ecc86943d5be146d02d8ae6585ea38a79
[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" "86c1d712fbaf281a81057e58a2bb952ecc86943d5be146d02d8ae6585ea38a79", kill_on_drop: false }`
[INFO] [stderr]     Checking id3 v0.5.1
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]  Documenting vgmdb-rust v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/vgmdb/io.rs:47:43
[INFO] [stdout]    |
[INFO] [stdout] 47 |        , tracks: d.tracks.into_iter().zip((1..)).map(|(t,i)|  convert_track(t, i) ).collect()
[INFO] [stdout]    |                                           ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/vgmdb/io.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |     for part in ( time.rsplit(":") ) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/vgmdb/data.rs:55:44
[INFO] [stdout]    |
[INFO] [stdout] 55 |         for (d,i) in self.discs.iter().zip((1..)) {
[INFO] [stdout]    |                                            ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.88s
[INFO] running `Command { std: "docker" "inspect" "86c1d712fbaf281a81057e58a2bb952ecc86943d5be146d02d8ae6585ea38a79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86c1d712fbaf281a81057e58a2bb952ecc86943d5be146d02d8ae6585ea38a79", kill_on_drop: false }`
[INFO] [stdout] 86c1d712fbaf281a81057e58a2bb952ecc86943d5be146d02d8ae6585ea38a79