[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 793ed8bd526ac92504690f517e2e45b85f92cbc9 [INFO] testing adragott/Serial_Rust_Learning against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadragott%2FSerial_Rust_Learning" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/adragott/Serial_Rust_Learning on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-0/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-0/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" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6ef926de2913c1caa438a5404a13356db0aef2577194ef351a168c3c21b76a1c [INFO] running `Command { std: "docker" "start" "-a" "6ef926de2913c1caa438a5404a13356db0aef2577194ef351a168c3c21b76a1c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ef926de2913c1caa438a5404a13356db0aef2577194ef351a168c3c21b76a1c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ef926de2913c1caa438a5404a13356db0aef2577194ef351a168c3c21b76a1c", kill_on_drop: false }` [INFO] [stdout] 6ef926de2913c1caa438a5404a13356db0aef2577194ef351a168c3c21b76a1c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 98acfea1e6b155e4812e85303d28fa162220e69bdd2d7eddeddb59e843ff47bb [INFO] running `Command { std: "docker" "start" "-a" "98acfea1e6b155e4812e85303d28fa162220e69bdd2d7eddeddb59e843ff47bb", 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 3.95s [INFO] running `Command { std: "docker" "inspect" "98acfea1e6b155e4812e85303d28fa162220e69bdd2d7eddeddb59e843ff47bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98acfea1e6b155e4812e85303d28fa162220e69bdd2d7eddeddb59e843ff47bb", kill_on_drop: false }` [INFO] [stdout] 98acfea1e6b155e4812e85303d28fa162220e69bdd2d7eddeddb59e843ff47bb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8b24ff3dfe63940f301f18ce6f703b0ba84865fdeade0decf5511b24c00d7357 [INFO] running `Command { std: "docker" "start" "-a" "8b24ff3dfe63940f301f18ce6f703b0ba84865fdeade0decf5511b24c00d7357", 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] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.59s [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8b24ff3dfe63940f301f18ce6f703b0ba84865fdeade0decf5511b24c00d7357", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b24ff3dfe63940f301f18ce6f703b0ba84865fdeade0decf5511b24c00d7357", kill_on_drop: false }` [INFO] [stdout] 8b24ff3dfe63940f301f18ce6f703b0ba84865fdeade0decf5511b24c00d7357 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e43ff14f640dc6f723029ea96cb8a54fe67ce0d868fb5ba3fa43c2fcd32c4c00 [INFO] running `Command { std: "docker" "start" "-a" "e43ff14f640dc6f723029ea96cb8a54fe67ce0d868fb5ba3fa43c2fcd32c4c00", 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 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/serial_rust-126505aafbfd3bc0 [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" "e43ff14f640dc6f723029ea96cb8a54fe67ce0d868fb5ba3fa43c2fcd32c4c00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e43ff14f640dc6f723029ea96cb8a54fe67ce0d868fb5ba3fa43c2fcd32c4c00", kill_on_drop: false }` [INFO] [stdout] e43ff14f640dc6f723029ea96cb8a54fe67ce0d868fb5ba3fa43c2fcd32c4c00