[INFO] cloning repository https://github.com/adragott/Serial_Rust_Learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adragott/Serial_Rust_Learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadragott%2FSerial_Rust_Learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadragott%2FSerial_Rust_Learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 793ed8bd526ac92504690f517e2e45b85f92cbc9 [INFO] testing adragott/Serial_Rust_Learning against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadragott%2FSerial_Rust_Learning" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/adragott/Serial_Rust_Learning on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-5/source/.cargo/config [INFO] started tweaking git repo https://github.com/adragott/Serial_Rust_Learning [INFO] finished tweaking git repo https://github.com/adragott/Serial_Rust_Learning [INFO] tweaked toml for git repo https://github.com/adragott/Serial_Rust_Learning written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/adragott/Serial_Rust_Learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--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-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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] af70018969c8362b46d78462b3ed435bc3af45975ef21ee8038e501bbe502c0d [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" "af70018969c8362b46d78462b3ed435bc3af45975ef21ee8038e501bbe502c0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "af70018969c8362b46d78462b3ed435bc3af45975ef21ee8038e501bbe502c0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af70018969c8362b46d78462b3ed435bc3af45975ef21ee8038e501bbe502c0d", kill_on_drop: false }` [INFO] [stdout] af70018969c8362b46d78462b3ed435bc3af45975ef21ee8038e501bbe502c0d [INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 08ab4a76d56161b2ca7911dcd96764c0009947a107a4c66287a3b60ed6fe6a9f [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" "08ab4a76d56161b2ca7911dcd96764c0009947a107a4c66287a3b60ed6fe6a9f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling serial-core v0.4.0 [INFO] [stderr] Compiling termios v0.2.2 [INFO] [stderr] Compiling ioctl-rs v0.1.6 [INFO] [stderr] Compiling serial-unix v0.4.0 [INFO] [stderr] Compiling serial v0.4.0 [INFO] [stderr] Compiling serial_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::str` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::str; [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:45:5 [INFO] [stdout] | [INFO] [stdout] 28 | / loop [INFO] [stdout] 29 | | { [INFO] [stdout] 30 | | let mut buf = [0_u8; 256]; [INFO] [stdout] 31 | | let count = match port.read(&mut buf) [INFO] [stdout] ... | [INFO] [stdout] 43 | | io::stdout().flush().unwrap(); [INFO] [stdout] 44 | | } [INFO] [stdout] | |____- any code following this expression is unreachable [INFO] [stdout] 45 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.51s [INFO] running `Command { std: "docker" "inspect" "08ab4a76d56161b2ca7911dcd96764c0009947a107a4c66287a3b60ed6fe6a9f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08ab4a76d56161b2ca7911dcd96764c0009947a107a4c66287a3b60ed6fe6a9f", kill_on_drop: false }` [INFO] [stdout] 08ab4a76d56161b2ca7911dcd96764c0009947a107a4c66287a3b60ed6fe6a9f [INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 74c8f36b73fc48cd708d9f35414ce898a1022715c0590955304adb0af517ceff [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" "74c8f36b73fc48cd708d9f35414ce898a1022715c0590955304adb0af517ceff", kill_on_drop: false }` [INFO] [stderr] Compiling serial_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::str` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::str; [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:45:5 [INFO] [stdout] | [INFO] [stdout] 28 | / loop [INFO] [stdout] 29 | | { [INFO] [stdout] 30 | | let mut buf = [0_u8; 256]; [INFO] [stdout] 31 | | let count = match port.read(&mut buf) [INFO] [stdout] ... | [INFO] [stdout] 43 | | io::stdout().flush().unwrap(); [INFO] [stdout] 44 | | } [INFO] [stdout] | |____- any code following this expression is unreachable [INFO] [stdout] 45 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.66s [INFO] running `Command { std: "docker" "inspect" "74c8f36b73fc48cd708d9f35414ce898a1022715c0590955304adb0af517ceff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74c8f36b73fc48cd708d9f35414ce898a1022715c0590955304adb0af517ceff", kill_on_drop: false }` [INFO] [stdout] 74c8f36b73fc48cd708d9f35414ce898a1022715c0590955304adb0af517ceff [INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e644295bb843d5882fbd4c4218445c0acfb7d3e9b0a70af7be36a0b5077e9e15 [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" "e644295bb843d5882fbd4c4218445c0acfb7d3e9b0a70af7be36a0b5077e9e15", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::str` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::str; [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:45:5 [INFO] [stderr] | [INFO] [stderr] 28 | / loop [INFO] [stderr] 29 | | { [INFO] [stderr] 30 | | let mut buf = [0_u8; 256]; [INFO] [stderr] 31 | | let count = match port.read(&mut buf) [INFO] [stderr] ... | [INFO] [stderr] 43 | | io::stdout().flush().unwrap(); [INFO] [stderr] 44 | | } [INFO] [stderr] | |____- any code following this expression is unreachable [INFO] [stderr] 45 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/serial_rust-88048da71aab8f46 [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 `Command { std: "docker" "inspect" "e644295bb843d5882fbd4c4218445c0acfb7d3e9b0a70af7be36a0b5077e9e15", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e644295bb843d5882fbd4c4218445c0acfb7d3e9b0a70af7be36a0b5077e9e15", kill_on_drop: false }` [INFO] [stdout] e644295bb843d5882fbd4c4218445c0acfb7d3e9b0a70af7be36a0b5077e9e15