[INFO] cloning repository https://github.com/cheng404/simple-tcp-server-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cheng404/simple-tcp-server-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheng404%2Fsimple-tcp-server-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheng404%2Fsimple-tcp-server-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7871393efa99c8a85205340e69b3c7a6482279ec [INFO] testing cheng404/simple-tcp-server-rs against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheng404%2Fsimple-tcp-server-rs" "/workspace/builds/worker-94/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cheng404/simple-tcp-server-rs on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cheng404/simple-tcp-server-rs [INFO] finished tweaking git repo https://github.com/cheng404/simple-tcp-server-rs [INFO] tweaked toml for git repo https://github.com/cheng404/simple-tcp-server-rs written to /workspace/builds/worker-94/source/Cargo.toml [INFO] crate git repo https://github.com/cheng404/simple-tcp-server-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5b8eb7e3bd40475bc74a4f31c3ab264bc58570c74012628ff66207c77e144f95 [INFO] running `Command { std: "docker" "start" "-a" "5b8eb7e3bd40475bc74a4f31c3ab264bc58570c74012628ff66207c77e144f95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5b8eb7e3bd40475bc74a4f31c3ab264bc58570c74012628ff66207c77e144f95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b8eb7e3bd40475bc74a4f31c3ab264bc58570c74012628ff66207c77e144f95", kill_on_drop: false }` [INFO] [stdout] 5b8eb7e3bd40475bc74a4f31c3ab264bc58570c74012628ff66207c77e144f95 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 324978c2bf077ad4030c82a01b3aa073cd27e3d881159a7a9f1552818dc8aac7 [INFO] running `Command { std: "docker" "start" "-a" "324978c2bf077ad4030c82a01b3aa073cd27e3d881159a7a9f1552818dc8aac7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling simple-tcp-server-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `Red` [INFO] [stdout] --> src/lesson4.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | Red, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Yellow` [INFO] [stdout] --> src/lesson4.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Yellow, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Green` [INFO] [stdout] --> src/lesson4.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Green [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sum_numbers` [INFO] [stdout] --> src/lesson4.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn sum_numbers(numbers: &[u32]) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_sharp_area` [INFO] [stdout] --> src/lesson4.rs:83:4 [INFO] [stdout] | [INFO] [stdout] 83 | fn print_sharp_area(sharp: T) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.61s [INFO] running `Command { std: "docker" "inspect" "324978c2bf077ad4030c82a01b3aa073cd27e3d881159a7a9f1552818dc8aac7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "324978c2bf077ad4030c82a01b3aa073cd27e3d881159a7a9f1552818dc8aac7", kill_on_drop: false }` [INFO] [stdout] 324978c2bf077ad4030c82a01b3aa073cd27e3d881159a7a9f1552818dc8aac7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6dd4e83b46e7e4ead1cfc6e3fb50d6193ea6f96afe0863d60c2256b897eb504b [INFO] running `Command { std: "docker" "start" "-a" "6dd4e83b46e7e4ead1cfc6e3fb50d6193ea6f96afe0863d60c2256b897eb504b", kill_on_drop: false }` [INFO] [stderr] Compiling simple-tcp-server-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `Red` [INFO] [stdout] --> src/lesson4.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | Red, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Yellow` [INFO] [stdout] --> src/lesson4.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Yellow, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Green` [INFO] [stdout] --> src/lesson4.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Green [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.45s [INFO] running `Command { std: "docker" "inspect" "6dd4e83b46e7e4ead1cfc6e3fb50d6193ea6f96afe0863d60c2256b897eb504b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6dd4e83b46e7e4ead1cfc6e3fb50d6193ea6f96afe0863d60c2256b897eb504b", kill_on_drop: false }` [INFO] [stdout] 6dd4e83b46e7e4ead1cfc6e3fb50d6193ea6f96afe0863d60c2256b897eb504b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0d561391934041b313da2d2bd9bd6cbef707e63d025293e1b7067281310bad36 [INFO] running `Command { std: "docker" "start" "-a" "0d561391934041b313da2d2bd9bd6cbef707e63d025293e1b7067281310bad36", kill_on_drop: false }` [INFO] [stderr] warning: variant is never constructed: `Red` [INFO] [stderr] --> src/lesson4.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | Red, [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Yellow` [INFO] [stderr] --> src/lesson4.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Yellow, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Green` [INFO] [stderr] --> src/lesson4.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Green [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `simple-tcp-server-rs` (bin "simple-tcp-server-rs" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/simple_tcp_server_rs-f95cba95fa9f7f5b) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test lesson4::test_print_sharp_area ... ok [INFO] [stdout] test lesson4::test_sum_numbers ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0d561391934041b313da2d2bd9bd6cbef707e63d025293e1b7067281310bad36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d561391934041b313da2d2bd9bd6cbef707e63d025293e1b7067281310bad36", kill_on_drop: false }` [INFO] [stdout] 0d561391934041b313da2d2bd9bd6cbef707e63d025293e1b7067281310bad36