[INFO] fetching crate gbm-rs 0.2.0...
[INFO] documenting gbm-rs-0.2.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate gbm-rs 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate gbm-rs 0.2.0 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 gbm-rs 0.2.0
[INFO] finished tweaking crates.io crate gbm-rs 0.2.0
[INFO] tweaked toml for crates.io crate gbm-rs 0.2.0 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c3234767759e57da1271447c939ede5ca8ccb72302dc3259b4a96a4b5a6d852b
[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" "c3234767759e57da1271447c939ede5ca8ccb72302dc3259b4a96a4b5a6d852b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3234767759e57da1271447c939ede5ca8ccb72302dc3259b4a96a4b5a6d852b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3234767759e57da1271447c939ede5ca8ccb72302dc3259b4a96a4b5a6d852b", kill_on_drop: false }`
[INFO] [stdout] c3234767759e57da1271447c939ede5ca8ccb72302dc3259b4a96a4b5a6d852b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6dd6cfbe36ca1042ab12be5fda1864dd406f417a04155bb022b7aa3eed2ef61e
[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" "6dd6cfbe36ca1042ab12be5fda1864dd406f417a04155bb022b7aa3eed2ef61e", kill_on_drop: false }`
[INFO] [stderr]  Documenting gbm-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:486:30
[INFO] [stdout]     |
[INFO] [stdout] 486 | pub const USE_SCANOUT: u32 = (1 << 0);
[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 assigned value
[INFO] [stdout]    --> src/lib.rs:488:29
[INFO] [stdout]     |
[INFO] [stdout] 488 | pub const USE_CURSOR: u32 = (1 << 1);
[INFO] [stdout]     |                             ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:491:32
[INFO] [stdout]     |
[INFO] [stdout] 491 | pub const USE_RENDERING: u32 = (1 << 2);
[INFO] [stdout]     |                                ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:494:28
[INFO] [stdout]     |
[INFO] [stdout] 494 | pub const USE_WRITE: u32 = (1 << 3);
[INFO] [stdout]     |                            ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "6dd6cfbe36ca1042ab12be5fda1864dd406f417a04155bb022b7aa3eed2ef61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dd6cfbe36ca1042ab12be5fda1864dd406f417a04155bb022b7aa3eed2ef61e", kill_on_drop: false }`
[INFO] [stdout] 6dd6cfbe36ca1042ab12be5fda1864dd406f417a04155bb022b7aa3eed2ef61e