[INFO] cloning repository https://github.com/LMJW/tokio-udp-protobuf-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LMJW/tokio-udp-protobuf-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLMJW%2Ftokio-udp-protobuf-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLMJW%2Ftokio-udp-protobuf-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 575b76b78b5e4cf3ad920659dbacb2daebb6e204
[INFO] checking LMJW/tokio-udp-protobuf-example against master#ff647322379c48947c196639599067665ff9eb88 for pr-151539-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLMJW%2Ftokio-udp-protobuf-example" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/LMJW/tokio-udp-protobuf-example
[INFO] finished tweaking git repo https://github.com/LMJW/tokio-udp-protobuf-example
[INFO] tweaked toml for git repo https://github.com/LMJW/tokio-udp-protobuf-example written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LMJW/tokio-udp-protobuf-example on toolchain ff647322379c48947c196639599067665ff9eb88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LMJW/tokio-udp-protobuf-example 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" "+ff647322379c48947c196639599067665ff9eb88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "2c937e963648c32717974ffabfda830d3c926f47aa44e5eb5773fe1d0ec32190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c937e963648c32717974ffabfda830d3c926f47aa44e5eb5773fe1d0ec32190" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c937e963648c32717974ffabfda830d3c926f47aa44e5eb5773fe1d0ec32190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c937e963648c32717974ffabfda830d3c926f47aa44e5eb5773fe1d0ec32190" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.7.14
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[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling rand v0.8.4
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[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]    Compiling prost v0.9.0
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[INFO] [stderr]    Compiling tokio-stream-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prost::encoding::sint32::encode`
[INFO] [stdout]  --> bin/client.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use prost::encoding::sint32::encode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> bin/client.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     loop{
[INFO] [stdout] 48 | |         let mut s = vec![];
[INFO] [stdout] 49 | |         input.read_buf(&mut s).await.unwrap();
[INFO] [stdout] 50 | |         println!("received input from stdin: {:?}", std::str::from_utf8(&s));
[INFO] [stdout] ...  |
[INFO] [stdout] 60 | |         sock.send(&mut buf).await?; 
[INFO] [stdout] 61 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 62 |
[INFO] [stdout] 63 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prost::encoding::sint32::encode`
[INFO] [stdout]  --> bin/client.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use prost::encoding::sint32::encode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> bin/client.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     loop{
[INFO] [stdout] 48 | |         let mut s = vec![];
[INFO] [stdout] 49 | |         input.read_buf(&mut s).await.unwrap();
[INFO] [stdout] 50 | |         println!("received input from stdin: {:?}", std::str::from_utf8(&s));
[INFO] [stdout] ...  |
[INFO] [stdout] 60 | |         sock.send(&mut buf).await?; 
[INFO] [stdout] 61 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 62 |
[INFO] [stdout] 63 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.85s
[INFO] running `Command { std: "docker" "inspect" "2c937e963648c32717974ffabfda830d3c926f47aa44e5eb5773fe1d0ec32190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c937e963648c32717974ffabfda830d3c926f47aa44e5eb5773fe1d0ec32190", kill_on_drop: false }`
[INFO] [stdout] 2c937e963648c32717974ffabfda830d3c926f47aa44e5eb5773fe1d0ec32190