[INFO] cloning repository https://github.com/HADMARINE/rust-udp-test [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HADMARINE/rust-udp-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHADMARINE%2Frust-udp-test", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHADMARINE%2Frust-udp-test'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 74ea55fecb5e8dae15631b79b5be38ef7651604b [INFO] testing HADMARINE/rust-udp-test against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHADMARINE%2Frust-udp-test" "/workspace/builds/worker-50/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/HADMARINE/rust-udp-test on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/HADMARINE/rust-udp-test [INFO] finished tweaking git repo https://github.com/HADMARINE/rust-udp-test [INFO] tweaked toml for git repo https://github.com/HADMARINE/rust-udp-test written to /workspace/builds/worker-50/source/Cargo.toml [INFO] crate git repo https://github.com/HADMARINE/rust-udp-test already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded portpicker v0.1.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d9324c3fca9576e6de6650831fde63887be2ee49259daee26e31224c8dc1e634 [INFO] running `Command { std: "docker" "start" "-a" "d9324c3fca9576e6de6650831fde63887be2ee49259daee26e31224c8dc1e634", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d9324c3fca9576e6de6650831fde63887be2ee49259daee26e31224c8dc1e634", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d9324c3fca9576e6de6650831fde63887be2ee49259daee26e31224c8dc1e634", kill_on_drop: false }` [INFO] [stdout] d9324c3fca9576e6de6650831fde63887be2ee49259daee26e31224c8dc1e634 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 838c46e8d341e9b5c087cc4cfb513bdfc60b6cd073e34300eee6d872a59fc355 [INFO] running `Command { std: "docker" "start" "-a" "838c46e8d341e9b5c087cc4cfb513bdfc60b6cd073e34300eee6d872a59fc355", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling bytes v1.1.0 [INFO] [stderr] Compiling pin-project-lite v0.2.7 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling lock_api v0.4.5 [INFO] [stderr] Compiling tokio v1.11.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling mio v0.7.13 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling portpicker v0.1.1 [INFO] [stderr] Compiling tokio-macros v1.3.0 [INFO] [stderr] Compiling rust-udp-test v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:78:43 [INFO] [stdout] | [INFO] [stdout] 78 | fn delete_udp_channel(ch_num: u32) -> Result<_, Box> {} [INFO] [stdout] | ------------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Result`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Result<_, Box<(dyn std::error::Error + 'static)>>` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0121]: the type placeholder `_` is not allowed within types on item signatures for return types [INFO] [stdout] --> src/main.rs:78:50 [INFO] [stdout] | [INFO] [stdout] 78 | fn delete_udp_channel(ch_num: u32) -> Result<_, Box> {} [INFO] [stdout] | -------^----------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | not allowed in type signatures [INFO] [stdout] | help: replace with the correct return type: `Result<[type error], Box<(dyn std::error::Error + 'static)>>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0121, E0308. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0121`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-udp-test` due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "838c46e8d341e9b5c087cc4cfb513bdfc60b6cd073e34300eee6d872a59fc355", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "838c46e8d341e9b5c087cc4cfb513bdfc60b6cd073e34300eee6d872a59fc355", kill_on_drop: false }` [INFO] [stdout] 838c46e8d341e9b5c087cc4cfb513bdfc60b6cd073e34300eee6d872a59fc355