[INFO] cloning repository https://github.com/infinitete/udp-server-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/infinitete/udp-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finfinitete%2Fudp-server-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finfinitete%2Fudp-server-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97002fabb06755a967c3a15359e7c6d0b01f22c5
[INFO] testing infinitete/udp-server-rust against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finfinitete%2Fudp-server-rust" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/infinitete/udp-server-rust on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/infinitete/udp-server-rust
[INFO] finished tweaking git repo https://github.com/infinitete/udp-server-rust
[INFO] tweaked toml for git repo https://github.com/infinitete/udp-server-rust written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/infinitete/udp-server-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99fde72f6641a72c13879f89c4fad98d105f336572c15f27784891fad6a3ae55
[INFO] running `Command { std: "docker" "start" "-a" "99fde72f6641a72c13879f89c4fad98d105f336572c15f27784891fad6a3ae55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99fde72f6641a72c13879f89c4fad98d105f336572c15f27784891fad6a3ae55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99fde72f6641a72c13879f89c4fad98d105f336572c15f27784891fad6a3ae55", kill_on_drop: false }`
[INFO] [stdout] 99fde72f6641a72c13879f89c4fad98d105f336572c15f27784891fad6a3ae55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 136fed0e41c3c7af1fafd9324c5218ac121dc0a12b4283cce3b5ac88b3149bce
[INFO] running `Command { std: "docker" "start" "-a" "136fed0e41c3c7af1fafd9324c5218ac121dc0a12b4283cce3b5ac88b3149bce", kill_on_drop: false }`
[INFO] [stderr]    Compiling udp-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `last_buff` is never read
[INFO] [stdout]   --> src/server/mod.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut last_buff = [0;32];
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "136fed0e41c3c7af1fafd9324c5218ac121dc0a12b4283cce3b5ac88b3149bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136fed0e41c3c7af1fafd9324c5218ac121dc0a12b4283cce3b5ac88b3149bce", kill_on_drop: false }`
[INFO] [stdout] 136fed0e41c3c7af1fafd9324c5218ac121dc0a12b4283cce3b5ac88b3149bce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b434a034ac97243025adef4f9fed4579a8815d88000b9f80022c1817684e7b63
[INFO] running `Command { std: "docker" "start" "-a" "b434a034ac97243025adef4f9fed4579a8815d88000b9f80022c1817684e7b63", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: value assigned to `last_buff` is never read
[INFO] [stdout]   --> src/server/mod.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut last_buff = [0;32];
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling udp-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_buff` is never read
[INFO] [stdout]   --> src/server/mod.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut last_buff = [0;32];
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.18s
[INFO] running `Command { std: "docker" "inspect" "b434a034ac97243025adef4f9fed4579a8815d88000b9f80022c1817684e7b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b434a034ac97243025adef4f9fed4579a8815d88000b9f80022c1817684e7b63", kill_on_drop: false }`
[INFO] [stdout] b434a034ac97243025adef4f9fed4579a8815d88000b9f80022c1817684e7b63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82d65a934511e21c4565be7cc795c559bcf6293d49f5c61ab4ff8afee8592a37
[INFO] running `Command { std: "docker" "start" "-a" "82d65a934511e21c4565be7cc795c559bcf6293d49f5c61ab4ff8afee8592a37", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: value assigned to `last_buff` is never read
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/server/mod.rs:10:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 10 |     let mut last_buff = [0;32];
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last_buff` is never read
[INFO] [stderr]   --> src/server/mod.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut last_buff = [0;32];
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/udp_server-4fa165d2c70217f1)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/udp_server-c639b9e0db0bc21c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests udp-server
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82d65a934511e21c4565be7cc795c559bcf6293d49f5c61ab4ff8afee8592a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d65a934511e21c4565be7cc795c559bcf6293d49f5c61ab4ff8afee8592a37", kill_on_drop: false }`
[INFO] [stdout] 82d65a934511e21c4565be7cc795c559bcf6293d49f5c61ab4ff8afee8592a37