[INFO] cloning repository https://github.com/Yotsuyubi/simple-gain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yotsuyubi/simple-gain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYotsuyubi%2Fsimple-gain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYotsuyubi%2Fsimple-gain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94c1dbe4b9da6b0af5ff0c69d09bf439e007a6d6
[INFO] testing Yotsuyubi/simple-gain against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYotsuyubi%2Fsimple-gain" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Yotsuyubi/simple-gain on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Yotsuyubi/simple-gain
[INFO] finished tweaking git repo https://github.com/Yotsuyubi/simple-gain
[INFO] tweaked toml for git repo https://github.com/Yotsuyubi/simple-gain written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Yotsuyubi/simple-gain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a10a6f58744b8ec46c3d82fd84a5ddff7fa8192f2d0cb9d5882119c50d62127a
[INFO] running `Command { std: "docker" "start" "-a" "a10a6f58744b8ec46c3d82fd84a5ddff7fa8192f2d0cb9d5882119c50d62127a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a10a6f58744b8ec46c3d82fd84a5ddff7fa8192f2d0cb9d5882119c50d62127a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a10a6f58744b8ec46c3d82fd84a5ddff7fa8192f2d0cb9d5882119c50d62127a", kill_on_drop: false }`
[INFO] [stdout] a10a6f58744b8ec46c3d82fd84a5ddff7fa8192f2d0cb9d5882119c50d62127a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed4f4f96986721417af8dd30e2fd78c346f9fa21afc1befa9da3ac21691dc418
[INFO] running `Command { std: "docker" "start" "-a" "ed4f4f96986721417af8dd30e2fd78c346f9fa21afc1befa9da3ac21691dc418", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling vst v0.2.1 (https://github.com/RustAudio/vst-rs.git?rev=a398697b#a398697b)
[INFO] [stderr]    Compiling vst-gui v0.2.0 (https://github.com/Yotsuyubi/rust-vst-gui.git?rev=72a3b4f#72a3b4f7)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/rust-vst-gui-d78a8a46a3f8a46a/72a3b4f/src/lib.rs:77:97
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn new_plugin_gui(
[INFO] [stdout]    |        -------------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 77 |     html_document: String, js_callback: JavascriptCallback, window_size: Option<(i32, i32)>) -> PluginGui
[INFO] [stdout]    |                                                                                                 ^^^^^^^^^ expected struct `PluginGui`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vst-gui` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ed4f4f96986721417af8dd30e2fd78c346f9fa21afc1befa9da3ac21691dc418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed4f4f96986721417af8dd30e2fd78c346f9fa21afc1befa9da3ac21691dc418", kill_on_drop: false }`
[INFO] [stdout] ed4f4f96986721417af8dd30e2fd78c346f9fa21afc1befa9da3ac21691dc418