[INFO] cloning repository https://github.com/bon-chi/mio_echo_server [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Fmio_echo_server'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] df24ffad142a840bc696d491bebfac448a92376e [INFO] checking bon-chi/mio_echo_server against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Fmio_echo_server" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bon-chi/mio_echo_server on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-4/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bd60525efdb373dbde8851ec79d93e2de7f0b41f0eaf5fda4b72f791e11d454e [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" "bd60525efdb373dbde8851ec79d93e2de7f0b41f0eaf5fda4b72f791e11d454e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bd60525efdb373dbde8851ec79d93e2de7f0b41f0eaf5fda4b72f791e11d454e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd60525efdb373dbde8851ec79d93e2de7f0b41f0eaf5fda4b72f791e11d454e", kill_on_drop: false }` [INFO] [stdout] bd60525efdb373dbde8851ec79d93e2de7f0b41f0eaf5fda4b72f791e11d454e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f2e2fd1ba7fc417c565874933d955ee6a0d9d0764e1b68e97d223c9b673bbbfd [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" "f2e2fd1ba7fc417c565874933d955ee6a0d9d0764e1b68e97d223c9b673bbbfd", kill_on_drop: false }` [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Checking bytes v0.3.0 [INFO] [stderr] Checking slab v0.1.3 [INFO] [stderr] Checking net2 v0.2.35 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking nix v0.5.1 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling ws2_32-sys v0.2.1 [INFO] [stderr] Checking miow v0.1.5 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking mio v0.5.1 [INFO] [stderr] Checking mio_echo_server v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0308]: `match` arms have incompatible types [INFO] [stdout] --> src/main.rs:100:18 [INFO] [stdout] | [INFO] [stdout] 98 | let event_set = match self.state { [INFO] [stdout] | _________________________- [INFO] [stdout] 99 | | State::Reading(..) => EventSet::readable(), [INFO] [stdout] | | -------------------- this is found to be of type `mio::EventSet` [INFO] [stdout] 100 | | _ => {} [INFO] [stdout] | | ^^ expected struct `mio::EventSet`, found `()` [INFO] [stdout] 101 | | }; [INFO] [stdout] | |_________- `match` arms have incompatible types [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:122:33 [INFO] [stdout] | [INFO] [stdout] 122 | fn unwrap_read_buf(self) -> Vec {} [INFO] [stdout] | --------------- ^^^^^^^ expected struct `Vec`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected struct `Vec` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mio_echo_server` [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[E0308]: `match` arms have incompatible types [INFO] [stdout] --> src/main.rs:100:18 [INFO] [stdout] | [INFO] [stdout] 98 | let event_set = match self.state { [INFO] [stdout] | _________________________- [INFO] [stdout] 99 | | State::Reading(..) => EventSet::readable(), [INFO] [stdout] | | -------------------- this is found to be of type `mio::EventSet` [INFO] [stdout] 100 | | _ => {} [INFO] [stdout] | | ^^ expected struct `mio::EventSet`, found `()` [INFO] [stdout] 101 | | }; [INFO] [stdout] | |_________- `match` arms have incompatible types [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:122:33 [INFO] [stdout] | [INFO] [stdout] 122 | fn unwrap_read_buf(self) -> Vec {} [INFO] [stdout] | --------------- ^^^^^^^ expected struct `Vec`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected struct `Vec` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [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" "f2e2fd1ba7fc417c565874933d955ee6a0d9d0764e1b68e97d223c9b673bbbfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f2e2fd1ba7fc417c565874933d955ee6a0d9d0764e1b68e97d223c9b673bbbfd", kill_on_drop: false }` [INFO] [stdout] f2e2fd1ba7fc417c565874933d955ee6a0d9d0764e1b68e97d223c9b673bbbfd