[INFO] cloning repository https://github.com/nekokuro0xf/workerpool [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nekokuro0xf/workerpool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnekokuro0xf%2Fworkerpool", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnekokuro0xf%2Fworkerpool'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ab5f095836f1c52147f6192e65831325f54272c5 [INFO] testing nekokuro0xf/workerpool against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnekokuro0xf%2Fworkerpool" "/workspace/builds/worker-47/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-47/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nekokuro0xf/workerpool on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nekokuro0xf/workerpool [INFO] finished tweaking git repo https://github.com/nekokuro0xf/workerpool [INFO] tweaked toml for git repo https://github.com/nekokuro0xf/workerpool written to /workspace/builds/worker-47/source/Cargo.toml [INFO] crate git repo https://github.com/nekokuro0xf/workerpool already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bac1710f25b0b3e18a053fa325a27f8b1a056515f50b072efc1fc683d9864491 [INFO] running `Command { std: "docker" "start" "-a" "bac1710f25b0b3e18a053fa325a27f8b1a056515f50b072efc1fc683d9864491", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bac1710f25b0b3e18a053fa325a27f8b1a056515f50b072efc1fc683d9864491", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bac1710f25b0b3e18a053fa325a27f8b1a056515f50b072efc1fc683d9864491", kill_on_drop: false }` [INFO] [stdout] bac1710f25b0b3e18a053fa325a27f8b1a056515f50b072efc1fc683d9864491 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 81fdc69e6adc4927bd580f8c1ae983b133f82ee5e94e62124ea961da1d955cd0 [INFO] running `Command { std: "docker" "start" "-a" "81fdc69e6adc4927bd580f8c1ae983b133f82ee5e94e62124ea961da1d955cd0", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.44 [INFO] [stderr] Compiling libc v0.2.54 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling bumpalo v2.4.1 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling serde v1.0.91 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling rustc-demangle v0.1.14 [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Compiling wasm-bindgen v0.2.44 [INFO] [stderr] Compiling termcolor v1.0.4 [INFO] [stderr] Compiling sourcefile v0.1.4 [INFO] [stderr] Compiling stdweb-internal-runtime v0.1.4 [INFO] [stderr] Compiling base-x v0.2.4 [INFO] [stderr] Compiling sha1 v0.6.0 [INFO] [stderr] Compiling discard v1.0.4 [INFO] [stderr] Compiling humantime v1.2.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling stdweb v0.4.17 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling backtrace v0.3.17 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling weedle v0.8.0 [INFO] [stderr] Compiling env_logger v0.6.1 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.44 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling serde_derive v1.0.91 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.44 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.44 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling wasm-bindgen-webidl v0.2.44 [INFO] [stderr] Compiling js-sys v0.3.21 [INFO] [stderr] Compiling web-sys v0.3.21 [INFO] [stderr] Compiling stdweb-derive v0.5.1 [INFO] [stderr] Compiling stdweb-internal-macros v0.2.7 [INFO] [stderr] Compiling rust_wasm_workerpool v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/main.rs:27:50 [INFO] [stdout] | [INFO] [stdout] 15 | / pub fn main() { [INFO] [stdout] 16 | | let message = "Hello, 世界!"; [INFO] [stdout] 17 | | js! { [INFO] [stdout] 18 | | // alert( @{message} ); [INFO] [stdout] ... | [INFO] [stdout] 27 | | let mut worker = Worker::new("./worker.js")?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] ... | [INFO] [stdout] 33 | | [INFO] [stdout] 34 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [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 E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_wasm_workerpool` due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "81fdc69e6adc4927bd580f8c1ae983b133f82ee5e94e62124ea961da1d955cd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81fdc69e6adc4927bd580f8c1ae983b133f82ee5e94e62124ea961da1d955cd0", kill_on_drop: false }` [INFO] [stdout] 81fdc69e6adc4927bd580f8c1ae983b133f82ee5e94e62124ea961da1d955cd0