[INFO] cloning repository https://github.com/tomatoaiu/rust-udp-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/tomatoaiu/rust-udp-echo-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomatoaiu%2Frust-udp-echo-server", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomatoaiu%2Frust-udp-echo-server'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 48dc4518736ca3aac5f03010fc337a689333bc5f [INFO] testing tomatoaiu/rust-udp-echo-server against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomatoaiu%2Frust-udp-echo-server" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tomatoaiu/rust-udp-echo-server on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tomatoaiu/rust-udp-echo-server [INFO] finished tweaking git repo https://github.com/tomatoaiu/rust-udp-echo-server [INFO] tweaked toml for git repo https://github.com/tomatoaiu/rust-udp-echo-server written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/tomatoaiu/rust-udp-echo-server already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 638ab087c1bd58489c822391594cd9f81ec0bd13fd11e623a37f8538224bbd27 [INFO] running `Command { std: "docker" "start" "-a" "638ab087c1bd58489c822391594cd9f81ec0bd13fd11e623a37f8538224bbd27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "638ab087c1bd58489c822391594cd9f81ec0bd13fd11e623a37f8538224bbd27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "638ab087c1bd58489c822391594cd9f81ec0bd13fd11e623a37f8538224bbd27", kill_on_drop: false }` [INFO] [stdout] 638ab087c1bd58489c822391594cd9f81ec0bd13fd11e623a37f8538224bbd27 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b648c586d4566bad0e0fe06cb0fd7428cfc5b5c161a11b54480072d0110a4d8a [INFO] running `Command { std: "docker" "start" "-a" "b648c586d4566bad0e0fe06cb0fd7428cfc5b5c161a11b54480072d0110a4d8a", kill_on_drop: false }` [INFO] [stderr] Compiling rust-udp-echo-server v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 14 | / loop { [INFO] [stdout] 15 | | let mut buf = [0; 10]; [INFO] [stdout] 16 | | let (amt, src) = socket.recv_from(&mut buf)?; [INFO] [stdout] 17 | | println!("From: {:?}, buf: {:?}", src, buf); [INFO] [stdout] 18 | | [INFO] [stdout] 19 | | socket.send_to(&buf, send_to)?; [INFO] [stdout] 20 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 21 | } [INFO] [stdout] 22 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `amt` [INFO] [stdout] --> src/main.rs:16:18 [INFO] [stdout] | [INFO] [stdout] 16 | let (amt, src) = socket.recv_from(&mut buf)?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_amt` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut socket = UdpSocket::bind("0.0.0.0:".to_string() + &port.to_string())?; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.88s [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b648c586d4566bad0e0fe06cb0fd7428cfc5b5c161a11b54480072d0110a4d8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b648c586d4566bad0e0fe06cb0fd7428cfc5b5c161a11b54480072d0110a4d8a", kill_on_drop: false }` [INFO] [stdout] b648c586d4566bad0e0fe06cb0fd7428cfc5b5c161a11b54480072d0110a4d8a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4919c494dcb87cd335d21fb9d3c6201ec19579ccd18a816937aa8fdfcd4a1c19 [INFO] running `Command { std: "docker" "start" "-a" "4919c494dcb87cd335d21fb9d3c6201ec19579ccd18a816937aa8fdfcd4a1c19", kill_on_drop: false }` [INFO] [stderr] Compiling rust-udp-echo-server v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 14 | / loop { [INFO] [stdout] 15 | | let mut buf = [0; 10]; [INFO] [stdout] 16 | | let (amt, src) = socket.recv_from(&mut buf)?; [INFO] [stdout] 17 | | println!("From: {:?}, buf: {:?}", src, buf); [INFO] [stdout] 18 | | [INFO] [stdout] 19 | | socket.send_to(&buf, send_to)?; [INFO] [stdout] 20 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 21 | } [INFO] [stdout] 22 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `amt` [INFO] [stdout] --> src/main.rs:16:18 [INFO] [stdout] | [INFO] [stdout] 16 | let (amt, src) = socket.recv_from(&mut buf)?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_amt` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut socket = UdpSocket::bind("0.0.0.0:".to_string() + &port.to_string())?; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.39s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_udp_echo_server-a7508302e47302d5) [INFO] running `Command { std: "docker" "inspect" "4919c494dcb87cd335d21fb9d3c6201ec19579ccd18a816937aa8fdfcd4a1c19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4919c494dcb87cd335d21fb9d3c6201ec19579ccd18a816937aa8fdfcd4a1c19", kill_on_drop: false }` [INFO] [stdout] 4919c494dcb87cd335d21fb9d3c6201ec19579ccd18a816937aa8fdfcd4a1c19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f663d144d50782cbdf5d6ad1df952dc19a8050999219908df0457fec6a90e8ed [INFO] running `Command { std: "docker" "start" "-a" "f663d144d50782cbdf5d6ad1df952dc19a8050999219908df0457fec6a90e8ed", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::fmt::Debug` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::fmt::Debug; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/main.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 14 | / loop { [INFO] [stderr] 15 | | let mut buf = [0; 10]; [INFO] [stderr] 16 | | let (amt, src) = socket.recv_from(&mut buf)?; [INFO] [stderr] 17 | | println!("From: {:?}, buf: {:?}", src, buf); [INFO] [stderr] 18 | | [INFO] [stderr] 19 | | socket.send_to(&buf, send_to)?; [INFO] [stderr] 20 | | } [INFO] [stderr] | |_________- any code following this expression is unreachable [INFO] [stderr] 21 | } [INFO] [stderr] 22 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `amt` [INFO] [stderr] --> src/main.rs:16:18 [INFO] [stderr] | [INFO] [stderr] 16 | let (amt, src) = socket.recv_from(&mut buf)?; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_amt` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | let mut socket = UdpSocket::bind("0.0.0.0:".to_string() + &port.to_string())?; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rust-udp-echo-server` (bin "rust-udp-echo-server" test) generated 4 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_udp_echo_server-a7508302e47302d5) [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" "f663d144d50782cbdf5d6ad1df952dc19a8050999219908df0457fec6a90e8ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f663d144d50782cbdf5d6ad1df952dc19a8050999219908df0457fec6a90e8ed", kill_on_drop: false }` [INFO] [stdout] f663d144d50782cbdf5d6ad1df952dc19a8050999219908df0457fec6a90e8ed