[INFO] updating cached repository https://github.com/nekokuro0xf/workerpool [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ab5f095836f1c52147f6192e65831325f54272c5 [INFO] checking nekokuro0xf/workerpool against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnekokuro0xf%2Fworkerpool" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nekokuro0xf/workerpool on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "read-manifest" "--manifest-path" "Cargo.toml", 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-11/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" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "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] d1eb022e4c1cf5bbc0e28776205dfcba03facad9ec9cc65b2d1182a33af6cea3 [INFO] running `Command { std: "docker" "start" "-a" "d1eb022e4c1cf5bbc0e28776205dfcba03facad9ec9cc65b2d1182a33af6cea3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d1eb022e4c1cf5bbc0e28776205dfcba03facad9ec9cc65b2d1182a33af6cea3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d1eb022e4c1cf5bbc0e28776205dfcba03facad9ec9cc65b2d1182a33af6cea3", kill_on_drop: false }` [INFO] [stdout] d1eb022e4c1cf5bbc0e28776205dfcba03facad9ec9cc65b2d1182a33af6cea3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9604ffcc0d9ab05964a76d72d60780a98bfe9e56e4cb782b85778b931f4ba793 [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" "9604ffcc0d9ab05964a76d72d60780a98bfe9e56e4cb782b85778b931f4ba793", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.44 [INFO] [stderr] Compiling bumpalo v2.4.1 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling rustc-demangle v0.1.14 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling wasm-bindgen v0.2.44 [INFO] [stderr] Compiling sourcefile v0.1.4 [INFO] [stderr] Compiling stdweb-internal-runtime v0.1.4 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling backtrace v0.3.17 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling libc v0.2.54 [INFO] [stderr] Compiling serde v1.0.91 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling stdweb v0.4.17 [INFO] [stderr] Compiling weedle v0.8.0 [INFO] [stderr] Compiling env_logger v0.6.1 [INFO] [stderr] Compiling serde_json v1.0.39 [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 failure v0.1.5 [INFO] [stderr] Compiling wasm-bindgen-webidl v0.2.44 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.44 [INFO] [stderr] Checking js-sys v0.3.21 [INFO] [stderr] Compiling web-sys v0.3.21 [INFO] [stderr] Compiling stdweb-internal-macros v0.2.7 [INFO] [stderr] Compiling stdweb-derive v0.5.1 [INFO] [stderr] Checking 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 `std::ops::Try`) [INFO] [stdout] --> src/main.rs:27:24 [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 `std::ops::Try` is not implemented for `()` [INFO] [stdout] = note: required by `std::ops::Try::from_error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) [INFO] [stdout] --> src/main.rs:27:24 [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 `std::ops::Try` is not implemented for `()` [INFO] [stdout] = note: required by `std::ops::Try::from_error` [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`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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: build failed [INFO] running `Command { std: "docker" "inspect" "9604ffcc0d9ab05964a76d72d60780a98bfe9e56e4cb782b85778b931f4ba793", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9604ffcc0d9ab05964a76d72d60780a98bfe9e56e4cb782b85778b931f4ba793", kill_on_drop: false }` [INFO] [stdout] 9604ffcc0d9ab05964a76d72d60780a98bfe9e56e4cb782b85778b931f4ba793