[INFO] fetching crate rustix-bl 0.5.0...
[INFO] documenting rustix-bl-0.5.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rustix-bl 0.5.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rustix-bl 0.5.0 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 rustix-bl 0.5.0
[INFO] finished tweaking crates.io crate rustix-bl 0.5.0
[INFO] tweaked toml for crates.io crate rustix-bl 0.5.0 written to /workspace/builds/worker-6/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]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_builder v0.5.1
[INFO] [stderr]   Downloaded typescriptify v0.1.5
[INFO] [stderr]   Downloaded typescriptify-derive v0.1.5
[INFO] [stderr]   Downloaded suffix-rs v0.1.0
[INFO] [stderr]   Downloaded derive_builder_core v0.2.0
[INFO] [stderr]   Downloaded lmdb-sys v0.8.0
[INFO] [stderr]   Downloaded lmdb v0.8.0
[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] 4f2ee868d62514961e44bc239d6b1d5802c2b3a927a54986b7d533f6f8c37385
[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" "4f2ee868d62514961e44bc239d6b1d5802c2b3a927a54986b7d533f6f8c37385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f2ee868d62514961e44bc239d6b1d5802c2b3a927a54986b7d533f6f8c37385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f2ee868d62514961e44bc239d6b1d5802c2b3a927a54986b7d533f6f8c37385", kill_on_drop: false }`
[INFO] [stdout] 4f2ee868d62514961e44bc239d6b1d5802c2b3a927a54986b7d533f6f8c37385
[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] 579494900c2e9f00a17db1e1f3e5aa64f024c8512be2396db46e192adb24c99c
[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" "579494900c2e9f00a17db1e1f3e5aa64f024c8512be2396db46e192adb24c99c", kill_on_drop: false }`
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling lmdb-sys v0.8.0
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]    Compiling typescriptify-derive v0.1.5
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking suffix-rs v0.1.0
[INFO] [stderr]     Checking bincode v0.8.0
[INFO] [stderr]     Checking typescriptify v0.1.5
[INFO] [stderr]     Checking lmdb v0.8.0
[INFO] [stderr]  Documenting rustix-bl v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/datastore.rs:1063:17
[INFO] [stdout]      |
[INFO] [stdout] 1063 |                 (*cents_worth_total - *cents_worth_used)
[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 9.38s
[INFO] running `Command { std: "docker" "inspect" "579494900c2e9f00a17db1e1f3e5aa64f024c8512be2396db46e192adb24c99c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "579494900c2e9f00a17db1e1f3e5aa64f024c8512be2396db46e192adb24c99c", kill_on_drop: false }`
[INFO] [stdout] 579494900c2e9f00a17db1e1f3e5aa64f024c8512be2396db46e192adb24c99c