[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] checking HADMARINE/rust-udp-test against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHADMARINE%2Frust-udp-test" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HADMARINE/rust-udp-test on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "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-4-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa905d276d22069f3079584bbc1da94d8037f0164b2d59381d17a4db927f3bf3
[INFO] running `Command { std: "docker" "start" "-a" "fa905d276d22069f3079584bbc1da94d8037f0164b2d59381d17a4db927f3bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa905d276d22069f3079584bbc1da94d8037f0164b2d59381d17a4db927f3bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa905d276d22069f3079584bbc1da94d8037f0164b2d59381d17a4db927f3bf3", kill_on_drop: false }`
[INFO] [stdout] fa905d276d22069f3079584bbc1da94d8037f0164b2d59381d17a4db927f3bf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5743843fde354ca35d23fe846a17d502224cee5b285d136fb7ff4f3b40bd82c9
[INFO] running `Command { std: "docker" "start" "-a" "5743843fde354ca35d23fe846a17d502224cee5b285d136fb7ff4f3b40bd82c9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[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 parking_lot_core v0.8.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking portpicker v0.1.1
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking 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<dyn std::error::Error>> {}
[INFO] [stdout]    |        ------------------                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<_, Box<dyn Error>>`, 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 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<dyn std::error::Error>> {}
[INFO] [stdout]    |                                                  ^ not allowed in type signatures
[INFO] [stdout] 
[INFO] [stdout] 
[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<dyn std::error::Error>> {}
[INFO] [stdout]    |        ------------------                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<_, Box<dyn Error>>`, 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 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<dyn std::error::Error>> {}
[INFO] [stdout]    |                                                  ^ not allowed in type signatures
[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] [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` (bin "rust-udp-test" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust-udp-test` (bin "rust-udp-test") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "5743843fde354ca35d23fe846a17d502224cee5b285d136fb7ff4f3b40bd82c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5743843fde354ca35d23fe846a17d502224cee5b285d136fb7ff4f3b40bd82c9", kill_on_drop: false }`
[INFO] [stdout] 5743843fde354ca35d23fe846a17d502224cee5b285d136fb7ff4f3b40bd82c9
