[INFO] cloning repository https://github.com/cassaundra/backlight [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cassaundra/backlight" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcassaundra%2Fbacklight", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcassaundra%2Fbacklight'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ac8c6029e1bb057ef2e7e05ce5e7057644a2bc46 [INFO] testing cassaundra/backlight against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcassaundra%2Fbacklight" "/workspace/builds/worker-28/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cassaundra/backlight on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cassaundra/backlight [INFO] finished tweaking git repo https://github.com/cassaundra/backlight [INFO] tweaked toml for git repo https://github.com/cassaundra/backlight written to /workspace/builds/worker-28/source/Cargo.toml [INFO] crate git repo https://github.com/cassaundra/backlight already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded scrap v0.5.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 46cdeb1185cdebbcfd74d9f05133c342f1b8e47973ff0c2adeb25b1f5d672757 [INFO] running `Command { std: "docker" "start" "-a" "46cdeb1185cdebbcfd74d9f05133c342f1b8e47973ff0c2adeb25b1f5d672757", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "46cdeb1185cdebbcfd74d9f05133c342f1b8e47973ff0c2adeb25b1f5d672757", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46cdeb1185cdebbcfd74d9f05133c342f1b8e47973ff0c2adeb25b1f5d672757", kill_on_drop: false }` [INFO] [stdout] 46cdeb1185cdebbcfd74d9f05133c342f1b8e47973ff0c2adeb25b1f5d672757 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6fd86343b17536b843598061f9eab7fea17166c3490bcf2e0c8a73c8f4e8d10b [INFO] running `Command { std: "docker" "start" "-a" "6fd86343b17536b843598061f9eab7fea17166c3490bcf2e0c8a73c8f4e8d10b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling pkg-config v0.3.18 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling syn v1.0.46 [INFO] [stderr] Compiling bitflags v0.9.1 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling scrap v0.5.0 [INFO] [stderr] Compiling memalloc v0.1.0 [INFO] [stderr] Compiling approx v0.1.1 [INFO] [stderr] Compiling bitflags v0.3.3 [INFO] [stderr] Compiling winapi v0.2.8 [INFO] [stderr] Compiling block v0.1.6 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling phf v0.7.24 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling alsa-sys v0.1.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling nix v0.9.0 [INFO] [stderr] Compiling atty v0.2.13 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling palette_derive v0.4.1 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling palette v0.4.1 [INFO] [stderr] Compiling alsa v0.2.2 [INFO] [stderr] Compiling midir v0.5.0 [INFO] [stderr] Compiling launchpad v1.0.0 (https://github.com/cassaundra/launch-rs.git#a912059d) [INFO] [stderr] Compiling structopt-derive v0.4.13 [INFO] [stderr] Compiling structopt v0.3.20 [INFO] [stderr] Compiling backlight v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:143:5 [INFO] [stdout] | [INFO] [stdout] 67 | / loop { [INFO] [stdout] 68 | | let t_a = Instant::now(); [INFO] [stdout] 69 | | [INFO] [stdout] 70 | | let buffer = match capturer.frame() { [INFO] [stdout] ... | [INFO] [stdout] 140 | | thread::sleep(Duration::from_millis(60)); [INFO] [stdout] 141 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 142 | [INFO] [stdout] 143 | 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: `t_a` [INFO] [stdout] --> src/main.rs:68:13 [INFO] [stdout] | [INFO] [stdout] 68 | let t_a = Instant::now(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_t_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t_b` [INFO] [stdout] --> src/main.rs:82:13 [INFO] [stdout] | [INFO] [stdout] 82 | let t_b = Instant::now(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_t_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 42s [INFO] running `Command { std: "docker" "inspect" "6fd86343b17536b843598061f9eab7fea17166c3490bcf2e0c8a73c8f4e8d10b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6fd86343b17536b843598061f9eab7fea17166c3490bcf2e0c8a73c8f4e8d10b", kill_on_drop: false }` [INFO] [stdout] 6fd86343b17536b843598061f9eab7fea17166c3490bcf2e0c8a73c8f4e8d10b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 99cb8c8f7e63032681ca85b388c9b8bc570998525c5fe7156e197606c4834c0f [INFO] running `Command { std: "docker" "start" "-a" "99cb8c8f7e63032681ca85b388c9b8bc570998525c5fe7156e197606c4834c0f", kill_on_drop: false }` [INFO] [stderr] Compiling backlight v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:143:5 [INFO] [stdout] | [INFO] [stdout] 67 | / loop { [INFO] [stdout] 68 | | let t_a = Instant::now(); [INFO] [stdout] 69 | | [INFO] [stdout] 70 | | let buffer = match capturer.frame() { [INFO] [stdout] ... | [INFO] [stdout] 140 | | thread::sleep(Duration::from_millis(60)); [INFO] [stdout] 141 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 142 | [INFO] [stdout] 143 | 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: `t_a` [INFO] [stdout] --> src/main.rs:68:13 [INFO] [stdout] | [INFO] [stdout] 68 | let t_a = Instant::now(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_t_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t_b` [INFO] [stdout] --> src/main.rs:82:13 [INFO] [stdout] | [INFO] [stdout] 82 | let t_b = Instant::now(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_t_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `Command { std: "docker" "inspect" "99cb8c8f7e63032681ca85b388c9b8bc570998525c5fe7156e197606c4834c0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99cb8c8f7e63032681ca85b388c9b8bc570998525c5fe7156e197606c4834c0f", kill_on_drop: false }` [INFO] [stdout] 99cb8c8f7e63032681ca85b388c9b8bc570998525c5fe7156e197606c4834c0f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d77e6e57f74d5ef047147a952b812274ea7471de390a6bd1dd476bfd629c4b91 [INFO] running `Command { std: "docker" "start" "-a" "d77e6e57f74d5ef047147a952b812274ea7471de390a6bd1dd476bfd629c4b91", kill_on_drop: false }` [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/main.rs:143:5 [INFO] [stderr] | [INFO] [stderr] 67 | / loop { [INFO] [stderr] 68 | | let t_a = Instant::now(); [INFO] [stderr] 69 | | [INFO] [stderr] 70 | | let buffer = match capturer.frame() { [INFO] [stderr] ... | [INFO] [stderr] 140 | | thread::sleep(Duration::from_millis(60)); [INFO] [stderr] 141 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] 142 | [INFO] [stderr] 143 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t_a` [INFO] [stderr] --> src/main.rs:68:13 [INFO] [stderr] | [INFO] [stderr] 68 | let t_a = Instant::now(); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_t_a` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t_b` [INFO] [stderr] --> src/main.rs:82:13 [INFO] [stderr] | [INFO] [stderr] 82 | let t_b = Instant::now(); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_t_b` [INFO] [stderr] [INFO] [stderr] warning: `backlight` (bin "backlight" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/backlight-6d99716882fc386e) [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d77e6e57f74d5ef047147a952b812274ea7471de390a6bd1dd476bfd629c4b91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d77e6e57f74d5ef047147a952b812274ea7471de390a6bd1dd476bfd629c4b91", kill_on_drop: false }` [INFO] [stdout] d77e6e57f74d5ef047147a952b812274ea7471de390a6bd1dd476bfd629c4b91