[INFO] cloning repository https://github.com/nstoddard/webgl-gui-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nstoddard/webgl-gui-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnstoddard%2Fwebgl-gui-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnstoddard%2Fwebgl-gui-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1f178bc47f544e040857ca495ec769bad93a7b2
[INFO] checking nstoddard/webgl-gui-demo against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnstoddard%2Fwebgl-gui-demo" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nstoddard/webgl-gui-demo on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nstoddard/webgl-gui-demo
[INFO] finished tweaking git repo https://github.com/nstoddard/webgl-gui-demo
[INFO] tweaked toml for git repo https://github.com/nstoddard/webgl-gui-demo written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/nstoddard/webgl-gui-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rustgd/cgmath`
[INFO] [stderr]     Updating git repository `https://github.com/nstoddard/webgl-gui`
[INFO] [stderr]     Updating git repository `https://github.com/nstoddard/webgl-wrapper`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-stopwatch v0.1.0
[INFO] [stderr]   Downloaded uid v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", 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] 368c55f6ca862d6e7dcdbb22c11b807b7b1e629ae4fcc6d7f745ea3bfe94652b
[INFO] running `Command { std: "docker" "start" "-a" "368c55f6ca862d6e7dcdbb22c11b807b7b1e629ae4fcc6d7f745ea3bfe94652b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "368c55f6ca862d6e7dcdbb22c11b807b7b1e629ae4fcc6d7f745ea3bfe94652b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368c55f6ca862d6e7dcdbb22c11b807b7b1e629ae4fcc6d7f745ea3bfe94652b", kill_on_drop: false }`
[INFO] [stdout] 368c55f6ca862d6e7dcdbb22c11b807b7b1e629ae4fcc6d7f745ea3bfe94652b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTFLAGS=--cap-lints=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 179c1f285799d13d966802520767aac0624fe7f675ad067080cecfdc0372cefa
[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" "179c1f285799d13d966802520767aac0624fe7f675ad067080cecfdc0372cefa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.60
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bumpalo v3.2.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.60
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cgmath v0.17.0 (https://github.com/rustgd/cgmath#50a345b7)
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking uid v0.1.4
[INFO] [stderr]     Checking collect-mac v0.1.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.60
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.60
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.60
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking js-sys v0.3.37
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking web-sys v0.3.37
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.10
[INFO] [stderr]     Checking webgl-wrapper v0.1.0 (https://github.com/nstoddard/webgl-wrapper#22f0169f)
[INFO] [stderr]     Checking wasm-stopwatch v0.1.0
[INFO] [stderr]     Checking console_log v0.1.2
[INFO] [stderr]     Checking webgl-gui v0.1.0 (https://github.com/nstoddard/webgl-gui#88197a6e)
[INFO] [stdout] error[E0271]: type mismatch resolving `<[closure@/opt/rustwide/cargo-home/git/checkouts/webgl-gui-5e721c0019556af0/88197a6/src/assets.rs:105:81: 109:22] as FnOnce<()>>::Output == ()`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/webgl-gui-5e721c0019556af0/88197a6/src/assets.rs:105:72
[INFO] [stdout]     |
[INFO] [stdout] 105 |                       *onerror_handler.borrow_mut() = Some(Closure::wrap(Box::new(move || {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout] 106 | |                         onerror_handler2.borrow_mut().take();
[INFO] [stdout] 107 | |                         panic!("Unable to load image: {:?}", image_url3);
[INFO] [stdout] 108 | |                         // TODO: reject here instead of panicking?
[INFO] [stdout] 109 | |                     })
[INFO] [stdout]     | |______________________^ expected `()`, found `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found type `!`
[INFO] [stdout]     = note: required for the cast to the object type `dyn std::ops::FnMut()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `webgl-gui`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "179c1f285799d13d966802520767aac0624fe7f675ad067080cecfdc0372cefa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179c1f285799d13d966802520767aac0624fe7f675ad067080cecfdc0372cefa", kill_on_drop: false }`
[INFO] [stdout] 179c1f285799d13d966802520767aac0624fe7f675ad067080cecfdc0372cefa