[INFO] fetching crate rsui 0.13.0...
[INFO] documenting rsui-0.13.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rsui 0.13.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rsui 0.13.0 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 rsui 0.13.0
[INFO] finished tweaking crates.io crate rsui 0.13.0
[INFO] tweaked toml for crates.io crate rsui 0.13.0 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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded glfw v0.26.1
[INFO] [stderr]   Downloaded pistoncore-glfw_window v0.47.0
[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] 814df84f80991e9b1b9cbc4c8fccb8e5e74d6d59926d89f5ccefad24f3817462
[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" "814df84f80991e9b1b9cbc4c8fccb8e5e74d6d59926d89f5ccefad24f3817462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "814df84f80991e9b1b9cbc4c8fccb8e5e74d6d59926d89f5ccefad24f3817462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "814df84f80991e9b1b9cbc4c8fccb8e5e74d6d59926d89f5ccefad24f3817462", kill_on_drop: false }`
[INFO] [stdout] 814df84f80991e9b1b9cbc4c8fccb8e5e74d6d59926d89f5ccefad24f3817462
[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] 2b21202a4c4f8037c03520df10c7b1d18af35e2470cd0d4bad36591b2d9e81c5
[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" "2b21202a4c4f8037c03520df10c7b1d18af35e2470cd0d4bad36591b2d9e81c5", kill_on_drop: false }`
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.3.1
[INFO] [stderr]     Checking semver v0.2.3
[INFO] [stderr]    Compiling glfw-sys v3.3.2
[INFO] [stderr]     Checking pistoncore-input v0.23.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking piston2d-graphics v0.30.0
[INFO] [stderr]     Checking pistoncore-window v0.35.0
[INFO] [stderr]     Checking piston-gfx_texture v0.35.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.40.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.52.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.56.0
[INFO] [stderr]     Checking piston v0.40.0
[INFO] [stderr]     Checking glfw v0.26.1
[INFO] [stderr]     Checking piston_window v0.87.0
[INFO] [stderr]     Checking pistoncore-glfw_window v0.47.0
[INFO] [stderr]  Documenting rsui v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/drawing_window.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |             if(first) {
[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 16.79s
[INFO] running `Command { std: "docker" "inspect" "2b21202a4c4f8037c03520df10c7b1d18af35e2470cd0d4bad36591b2d9e81c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b21202a4c4f8037c03520df10c7b1d18af35e2470cd0d4bad36591b2d9e81c5", kill_on_drop: false }`
[INFO] [stdout] 2b21202a4c4f8037c03520df10c7b1d18af35e2470cd0d4bad36591b2d9e81c5