[INFO] fetching crate tak 0.6.1...
[INFO] documenting tak-0.6.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate tak 0.6.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate tak 0.6.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tak 0.6.1
[INFO] finished tweaking crates.io crate tak 0.6.1
[INFO] tweaked toml for crates.io crate tak 0.6.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1618c0f8dc57e57c0949084af5ec6c34aa058ec4bea57bd7777c14445a3b793e
[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" "1618c0f8dc57e57c0949084af5ec6c34aa058ec4bea57bd7777c14445a3b793e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1618c0f8dc57e57c0949084af5ec6c34aa058ec4bea57bd7777c14445a3b793e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1618c0f8dc57e57c0949084af5ec6c34aa058ec4bea57bd7777c14445a3b793e", kill_on_drop: false }`
[INFO] [stdout] 1618c0f8dc57e57c0949084af5ec6c34aa058ec4bea57bd7777c14445a3b793e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08fb1ddfbfa0e2b010fa9a6367a51159e43d94ee0a5f5ffaffe710c7eda7f73a
[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" "08fb1ddfbfa0e2b010fa9a6367a51159e43d94ee0a5f5ffaffe710c7eda7f73a", kill_on_drop: false }`
[INFO] [stderr]     Checking twiddle v1.1.0
[INFO] [stderr]  Documenting tak v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/piece.rs:90:24
[INFO] [stdout]    |
[INFO] [stdout] 90 |         Stone::from_u8((*self as u8 & 0x3)).unwrap()
[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 1.64s
[INFO] running `Command { std: "docker" "inspect" "08fb1ddfbfa0e2b010fa9a6367a51159e43d94ee0a5f5ffaffe710c7eda7f73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08fb1ddfbfa0e2b010fa9a6367a51159e43d94ee0a5f5ffaffe710c7eda7f73a", kill_on_drop: false }`
[INFO] [stdout] 08fb1ddfbfa0e2b010fa9a6367a51159e43d94ee0a5f5ffaffe710c7eda7f73a
