[INFO] cloning repository https://github.com/bon-chi/mio_echo_server [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bon-chi/mio_echo_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Fmio_echo_server"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Fmio_echo_server'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] df24ffad142a840bc696d491bebfac448a92376e [INFO] checking bon-chi/mio_echo_server against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Fmio_echo_server" "/workspace/builds/worker-14/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bon-chi/mio_echo_server on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b [INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/bon-chi/mio_echo_server [INFO] finished tweaking git repo https://github.com/bon-chi/mio_echo_server [INFO] tweaked toml for git repo https://github.com/bon-chi/mio_echo_server written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/bon-chi/mio_echo_server already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /workspace/builds/worker-14/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 91993895ef9026638916ecd3e6364b948f3bed44d97c22c94a64c3ca8f05e25a [INFO] running `"docker" "start" "-a" "91993895ef9026638916ecd3e6364b948f3bed44d97c22c94a64c3ca8f05e25a"` [INFO] [stderr] Checking mio_echo_server v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0308]: match arms have incompatible types [INFO] [stderr] --> src/main.rs:100:18 [INFO] [stderr] | [INFO] [stderr] 98 | let event_set = match self.state { [INFO] [stderr] | _________________________- [INFO] [stderr] 99 | | State::Reading(..) => EventSet::readable(), [INFO] [stderr] | | -------------------- this is found to be of type `mio::EventSet` [INFO] [stderr] 100 | | _ => {} [INFO] [stderr] | | ^^ expected struct `mio::EventSet`, found () [INFO] [stderr] 101 | | }; [INFO] [stderr] | |_________- `match` arms have incompatible types [INFO] [stderr] | [INFO] [stderr] = note: expected type `mio::EventSet` [INFO] [stderr] found type `()` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:122:33 [INFO] [stderr] | [INFO] [stderr] 122 | fn unwrap_read_buf(self) -> Vec {} [INFO] [stderr] | --------------- ^^^^^^^ expected struct `std::vec::Vec`, found () [INFO] [stderr] | | [INFO] [stderr] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::vec::Vec` [INFO] [stderr] found type `()` [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0308`. [INFO] [stderr] error: could not compile `mio_echo_server`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0308]: match arms have incompatible types [INFO] [stderr] --> src/main.rs:100:18 [INFO] [stderr] | [INFO] [stderr] 98 | let event_set = match self.state { [INFO] [stderr] | _________________________- [INFO] [stderr] 99 | | State::Reading(..) => EventSet::readable(), [INFO] [stderr] | | -------------------- this is found to be of type `mio::EventSet` [INFO] [stderr] 100 | | _ => {} [INFO] [stderr] | | ^^ expected struct `mio::EventSet`, found () [INFO] [stderr] 101 | | }; [INFO] [stderr] | |_________- `match` arms have incompatible types [INFO] [stderr] | [INFO] [stderr] = note: expected type `mio::EventSet` [INFO] [stderr] found type `()` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:122:33 [INFO] [stderr] | [INFO] [stderr] 122 | fn unwrap_read_buf(self) -> Vec {} [INFO] [stderr] | --------------- ^^^^^^^ expected struct `std::vec::Vec`, found () [INFO] [stderr] | | [INFO] [stderr] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::vec::Vec` [INFO] [stderr] found type `()` [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0308`. [INFO] [stderr] error: could not compile `mio_echo_server`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "91993895ef9026638916ecd3e6364b948f3bed44d97c22c94a64c3ca8f05e25a"` [INFO] running `"docker" "rm" "-f" "91993895ef9026638916ecd3e6364b948f3bed44d97c22c94a64c3ca8f05e25a"` [INFO] [stdout] 91993895ef9026638916ecd3e6364b948f3bed44d97c22c94a64c3ca8f05e25a