[INFO] cloning repository https://github.com/andrewvy/webmask-renderer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrewvy/webmask-renderer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewvy%2Fwebmask-renderer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewvy%2Fwebmask-renderer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ca7c5eb5e35cefb627f12a3e1c696deeb7b8221
[INFO] documenting andrewvy/webmask-renderer against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewvy%2Fwebmask-renderer" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrewvy/webmask-renderer 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 git repo https://github.com/andrewvy/webmask-renderer
[INFO] finished tweaking git repo https://github.com/andrewvy/webmask-renderer
[INFO] tweaked toml for git repo https://github.com/andrewvy/webmask-renderer written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/andrewvy/webmask-renderer already has a lockfile, it will not be regenerated
[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 euclid v0.19.5
[INFO] [stderr]   Downloaded simplecss v0.1.0
[INFO] [stderr]   Downloaded lyon_geom v0.12.2
[INFO] [stderr]   Downloaded xmlparser v0.8.1
[INFO] [stderr]   Downloaded rctree v0.2.1
[INFO] [stderr]   Downloaded rgb v0.8.12
[INFO] [stderr]   Downloaded pangocairo-sys v0.8.0
[INFO] [stderr]   Downloaded pangocairo v0.6.0
[INFO] [stderr]   Downloaded nom v4.2.0
[INFO] [stderr]   Downloaded svgdom v0.16.0
[INFO] [stderr]   Downloaded usvg v0.5.0
[INFO] [stderr]   Downloaded svgtypes v0.4.1
[INFO] [stderr]   Downloaded resvg v0.5.0
[INFO] [stderr]   Downloaded roxmltree v0.4.1
[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] c9287e1c8bd649baa06fc5a9b18c4dac965ee47fd07a928716700c06f98f8cbd
[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" "c9287e1c8bd649baa06fc5a9b18c4dac965ee47fd07a928716700c06f98f8cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9287e1c8bd649baa06fc5a9b18c4dac965ee47fd07a928716700c06f98f8cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9287e1c8bd649baa06fc5a9b18c4dac965ee47fd07a928716700c06f98f8cbd", kill_on_drop: false }`
[INFO] [stdout] c9287e1c8bd649baa06fc5a9b18c4dac965ee47fd07a928716700c06f98f8cbd
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0eb8ece552dadc4c31daae1c36388922b39c7ba63b108cc18ab3f3528820f93e
[INFO] running `Command { std: "docker" "start" "-a" "0eb8ece552dadc4c31daae1c36388922b39c7ba63b108cc18ab3f3528820f93e", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking xmlparser v0.8.1
[INFO] [stderr]    Compiling cairo-rs v0.5.0
[INFO] [stderr]    Compiling gio v0.5.1
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling gdk-pixbuf v0.5.0
[INFO] [stderr]     Checking simplecss v0.1.0
[INFO] [stderr]    Compiling pangocairo v0.6.0
[INFO] [stderr]     Checking fragile v0.3.0
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]     Checking rctree v0.2.1
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking rgb v0.8.12
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking roxmltree v0.4.1
[INFO] [stderr]    Compiling glib-sys v0.7.0
[INFO] [stderr]    Compiling gobject-sys v0.7.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.7.0
[INFO] [stderr]    Compiling gio-sys v0.7.0
[INFO] [stderr]    Compiling pango-sys v0.7.0
[INFO] [stderr]    Compiling pangocairo-sys v0.8.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.7.0
[INFO] [stderr]     Checking libflate v0.1.19
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking nom v4.2.0
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking svgtypes v0.4.1
[INFO] [stderr]     Checking glib v0.6.1
[INFO] [stderr]     Checking svgdom v0.16.0
[INFO] [stderr]     Checking pango v0.5.0
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]     Checking euclid v0.19.5
[INFO] [stderr]     Checking lyon_geom v0.12.2
[INFO] [stderr]     Checking usvg v0.5.0
[INFO] [stderr]     Checking resvg v0.5.0
[INFO] [stderr]  Documenting webmask_renderer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/main.rs:143:43
[INFO] [stdout]     |
[INFO] [stdout] 143 | ...                   total_time += (frame.time - initial_time);
[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 50.62s
[INFO] running `Command { std: "docker" "inspect" "0eb8ece552dadc4c31daae1c36388922b39c7ba63b108cc18ab3f3528820f93e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb8ece552dadc4c31daae1c36388922b39c7ba63b108cc18ab3f3528820f93e", kill_on_drop: false }`
[INFO] [stdout] 0eb8ece552dadc4c31daae1c36388922b39c7ba63b108cc18ab3f3528820f93e