[INFO] updating cached repository https://github.com/tomatoaiu/rust-udp-echo-server [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 48dc4518736ca3aac5f03010fc337a689333bc5f [INFO] testing tomatoaiu/rust-udp-echo-server against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomatoaiu%2Frust-udp-echo-server" "/workspace/builds/worker-5/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tomatoaiu/rust-udp-echo-server on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [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-5/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 `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stdout] 2ac75cece1d93dd067c80ccc5e82dfeb701588466ac83d271219f61ac8ee891e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "2ac75cece1d93dd067c80ccc5e82dfeb701588466ac83d271219f61ac8ee891e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust-udp-echo-server v0.1.0 (/opt/rustwide/workdir) [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: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `"docker" "inspect" "2ac75cece1d93dd067c80ccc5e82dfeb701588466ac83d271219f61ac8ee891e"` [INFO] running `"docker" "rm" "-f" "2ac75cece1d93dd067c80ccc5e82dfeb701588466ac83d271219f61ac8ee891e"` [INFO] [stdout] 2ac75cece1d93dd067c80ccc5e82dfeb701588466ac83d271219f61ac8ee891e [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stdout] cef5e7f726757cb56e8ad160adaffa93f535960c0a502bdc055b3efecb1d091e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "cef5e7f726757cb56e8ad160adaffa93f535960c0a502bdc055b3efecb1d091e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust-udp-echo-server v0.1.0 (/opt/rustwide/workdir) [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: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.43s [INFO] running `"docker" "inspect" "cef5e7f726757cb56e8ad160adaffa93f535960c0a502bdc055b3efecb1d091e"` [INFO] running `"docker" "rm" "-f" "cef5e7f726757cb56e8ad160adaffa93f535960c0a502bdc055b3efecb1d091e"` [INFO] [stdout] cef5e7f726757cb56e8ad160adaffa93f535960c0a502bdc055b3efecb1d091e [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 84797426b54273a134b0c99436e188342e5e7d609a89b5c21acff4eb0c4a9e62 [INFO] running `"docker" "start" "-a" "84797426b54273a134b0c99436e188342e5e7d609a89b5c21acff4eb0c4a9e62"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [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: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_udp_echo_server-6661ab5baaab5875 [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "84797426b54273a134b0c99436e188342e5e7d609a89b5c21acff4eb0c4a9e62"` [INFO] running `"docker" "rm" "-f" "84797426b54273a134b0c99436e188342e5e7d609a89b5c21acff4eb0c4a9e62"` [INFO] [stdout] 84797426b54273a134b0c99436e188342e5e7d609a89b5c21acff4eb0c4a9e62