[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 try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomatoaiu%2Frust-udp-echo-server" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tomatoaiu/rust-udp-echo-server 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/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-13/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 56151af51c08f858f1ef2d57f1736c63a9e0f8e844f5fa1542287dd5ace399a5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "56151af51c08f858f1ef2d57f1736c63a9e0f8e844f5fa1542287dd5ace399a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56151af51c08f858f1ef2d57f1736c63a9e0f8e844f5fa1542287dd5ace399a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56151af51c08f858f1ef2d57f1736c63a9e0f8e844f5fa1542287dd5ace399a5", kill_on_drop: false }` [INFO] [stdout] 56151af51c08f858f1ef2d57f1736c63a9e0f8e844f5fa1542287dd5ace399a5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] baac55bc9d6ce586ab8238606ca80e102414a54ed3180f74f9e96c71032e1656 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "baac55bc9d6ce586ab8238606ca80e102414a54ed3180f74f9e96c71032e1656", 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 dev [unoptimized + debuginfo] target(s) in 1.00s [INFO] running `Command { std: "docker" "inspect" "baac55bc9d6ce586ab8238606ca80e102414a54ed3180f74f9e96c71032e1656", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "baac55bc9d6ce586ab8238606ca80e102414a54ed3180f74f9e96c71032e1656", kill_on_drop: false }` [INFO] [stdout] baac55bc9d6ce586ab8238606ca80e102414a54ed3180f74f9e96c71032e1656 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 170f83aff36fb765e1ebeecdcf27e97b09a886a33b50b5ce8345f52bfc59fad8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "170f83aff36fb765e1ebeecdcf27e97b09a886a33b50b5ce8345f52bfc59fad8", 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 test [unoptimized + debuginfo] target(s) in 0.64s [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "170f83aff36fb765e1ebeecdcf27e97b09a886a33b50b5ce8345f52bfc59fad8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "170f83aff36fb765e1ebeecdcf27e97b09a886a33b50b5ce8345f52bfc59fad8", kill_on_drop: false }` [INFO] [stdout] 170f83aff36fb765e1ebeecdcf27e97b09a886a33b50b5ce8345f52bfc59fad8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 10ae83fb04edb2b0547ed516f304ddfb41fc85deaa42a43f18090075b71466cd [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "10ae83fb04edb2b0547ed516f304ddfb41fc85deaa42a43f18090075b71466cd", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: unused import: `std::fmt::Debug` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/main.rs:3:5 [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] 3 | use std::fmt::Debug; [INFO] [stdout] [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 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_udp_echo_server-fced71ca170474cb) [INFO] running `Command { std: "docker" "inspect" "10ae83fb04edb2b0547ed516f304ddfb41fc85deaa42a43f18090075b71466cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10ae83fb04edb2b0547ed516f304ddfb41fc85deaa42a43f18090075b71466cd", kill_on_drop: false }` [INFO] [stdout] 10ae83fb04edb2b0547ed516f304ddfb41fc85deaa42a43f18090075b71466cd