[INFO] cloning repository https://github.com/bvinc/gxi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bvinc/gxi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbvinc%2Fgxi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbvinc%2Fgxi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47d52cb536e6fa9b3c6ca2b6efb49e0efea30054
[INFO] documenting bvinc/gxi 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%2Fbvinc%2Fgxi" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bvinc/gxi 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/bvinc/gxi
[INFO] finished tweaking git repo https://github.com/bvinc/gxi
[INFO] tweaked toml for git repo https://github.com/bvinc/gxi written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/bvinc/gxi 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] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Updating git repository `https://github.com/google/xi-editor`
[INFO] [stderr]     Updating git submodule `https://github.com/xi-editor/syntect-resources`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plist v0.4.2
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] cd8ad3723317ade2f35f0722ec1a404539bf3aeca5d6e353c6615361b120148d
[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" "cd8ad3723317ade2f35f0722ec1a404539bf3aeca5d6e353c6615361b120148d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd8ad3723317ade2f35f0722ec1a404539bf3aeca5d6e353c6615361b120148d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd8ad3723317ade2f35f0722ec1a404539bf3aeca5d6e353c6615361b120148d", kill_on_drop: false }`
[INFO] [stdout] cd8ad3723317ade2f35f0722ec1a404539bf3aeca5d6e353c6615361b120148d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c302fe223b73bdd4454d9bc2c2688f82c7a7a47584885411ba061b8c61055d10
[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" "c302fe223b73bdd4454d9bc2c2688f82c7a7a47584885411ba061b8c61055d10", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]    Compiling pangocairo v0.9.0
[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]     Checking xi-unicode v0.2.0 (https://github.com/google/xi-editor?rev=65911d9#65911d91)
[INFO] [stderr]    Compiling pango-sys v0.9.1
[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]    Compiling pangocairo-sys v0.10.1
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.0.2
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking glib-sys v0.9.1
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking dirs-next v1.0.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling freetype-sys v0.12.0
[INFO] [stderr]    Compiling gdk-sys v0.9.1
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]     Checking gobject-sys v0.9.1
[INFO] [stderr]     Checking cairo-sys-rs v0.9.2
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking gio-sys v0.9.1
[INFO] [stderr]     Checking atk-sys v0.9.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking servo-fontconfig v0.5.0
[INFO] [stderr]     Checking backtrace v0.3.41
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]     Checking notify v5.0.0-pre.1
[INFO] [stderr]     Checking gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v0.4.17
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking serde v1.0.110
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking glib v0.9.3
[INFO] [stderr]     Checking cairo-rs v0.8.1
[INFO] [stderr]     Checking gio v0.8.1
[INFO] [stderr]     Checking atk v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking plist v0.4.2
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking xi-rope v0.3.0 (https://github.com/google/xi-editor?rev=65911d9#65911d91)
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking xi-trace v0.2.0 (https://github.com/google/xi-editor?rev=65911d9#65911d91)
[INFO] [stderr]     Checking syntect v3.3.0
[INFO] [stderr]     Checking xi-rpc v0.3.0 (https://github.com/google/xi-editor?rev=65911d9#65911d91)
[INFO] [stderr]     Checking xi-core-lib v0.3.0 (https://github.com/google/xi-editor?rev=65911d9#65911d91)
[INFO] [stderr]     Checking gdk-pixbuf v0.8.0
[INFO] [stderr]  Documenting gxi v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/scrollable_drawing_area.rs:71:81
[INFO] [stdout]    |
[INFO] [stdout] 71 |             Option<unsafe extern "C" fn(this: *mut ScrollableDrawingAreaFfi) -> (())>,
[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 type
[INFO] [stdout]    --> src/scrollable_drawing_area.rs:128:41
[INFO] [stdout]     |
[INFO] [stdout] 128 |         fn value_changed_impl(&self) -> (()) {
[INFO] [stdout]     |                                         ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/scrollable_drawing_area.rs:291:14
[INFO] [stdout]     |
[INFO] [stdout] 291 |         ) -> (()) {
[INFO] [stdout]     |              ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/scrollable_drawing_area.rs:458:46
[INFO] [stdout]     |
[INFO] [stdout] 458 |     fn connect_value_changed<F: Fn(&Self) -> (()) + 'static>(&self, f: F) -> glib::SignalHandlerId;
[INFO] [stdout]     |                                              ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/scrollable_drawing_area.rs:472:46
[INFO] [stdout]     |
[INFO] [stdout] 472 |     fn connect_value_changed<F: Fn(&Self) -> (()) + 'static>(&self, f: F) -> glib::SignalHandlerId {
[INFO] [stdout]     |                                              ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/scrollable_drawing_area.rs:474:41
[INFO] [stdout]     |
[INFO] [stdout] 474 |             let f: Box<Box<Fn(&Self) -> (()) + 'static>> = Box::new(Box::new(f));
[INFO] [stdout]     |                                         ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/scrollable_drawing_area.rs:576:6
[INFO] [stdout]     |
[INFO] [stdout] 576 | ) -> (())
[INFO] [stdout]     |      ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/scrollable_drawing_area.rs:582:25
[INFO] [stdout]     |
[INFO] [stdout] 582 |     let f: &&(Fn(&P) -> (()) + 'static) = mem::transmute(f);
[INFO] [stdout]     |                         ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 42s
[INFO] running `Command { std: "docker" "inspect" "c302fe223b73bdd4454d9bc2c2688f82c7a7a47584885411ba061b8c61055d10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c302fe223b73bdd4454d9bc2c2688f82c7a7a47584885411ba061b8c61055d10", kill_on_drop: false }`
[INFO] [stdout] c302fe223b73bdd4454d9bc2c2688f82c7a7a47584885411ba061b8c61055d10