[INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 86144d0cc5c9da1850cb0205d8b75c0ecb514a85 [INFO] testing thara/mandelbrot-rust against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thara/mandelbrot-rust 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/thara/mandelbrot-rust [INFO] finished tweaking git repo https://github.com/thara/mandelbrot-rust [INFO] tweaked toml for git repo https://github.com/thara/mandelbrot-rust written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/thara/mandelbrot-rust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 03029bc1b23f3a948b306b435d19744f640a08d378d1b0fff20fe1f1fdd02475 [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" "03029bc1b23f3a948b306b435d19744f640a08d378d1b0fff20fe1f1fdd02475", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "03029bc1b23f3a948b306b435d19744f640a08d378d1b0fff20fe1f1fdd02475", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03029bc1b23f3a948b306b435d19744f640a08d378d1b0fff20fe1f1fdd02475", kill_on_drop: false }` [INFO] [stdout] 03029bc1b23f3a948b306b435d19744f640a08d378d1b0fff20fe1f1fdd02475 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c370a3dfa4e529ad45b83edbc16b4af7f919a95302bc74df7e97508bdeb62d0c [INFO] running `Command { std: "docker" "start" "-a" "c370a3dfa4e529ad45b83edbc16b4af7f919a95302bc74df7e97508bdeb62d0c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.47 [INFO] [stderr] Compiling cfg-if v0.1.6 [INFO] [stderr] Compiling rand_core v0.3.0 [INFO] [stderr] Compiling lazy_static v1.2.0 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling proc-macro2 v0.4.25 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Compiling byteorder v1.2.7 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num-derive v0.2.3 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling either v1.5.0 [INFO] [stderr] Compiling safe-transmute v0.10.1 [INFO] [stderr] Compiling rand v0.6.4 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling inflate v0.4.4 [INFO] [stderr] Compiling gif v0.10.1 [INFO] [stderr] Compiling crossbeam-utils v0.2.2 [INFO] [stderr] Compiling crossbeam-utils v0.6.3 [INFO] [stderr] Compiling deflate v0.7.19 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling smallvec v0.6.7 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling crossbeam-epoch v0.7.0 [INFO] [stderr] Compiling crossbeam-deque v0.6.3 [INFO] [stderr] Compiling crossbeam-deque v0.2.0 [INFO] [stderr] Compiling png v0.14.0 [INFO] [stderr] Compiling quote v0.6.10 [INFO] [stderr] Compiling rand_os v0.1.1 [INFO] [stderr] Compiling num_cpus v1.9.0 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling crossbeam-channel v0.3.6 [INFO] [stderr] Compiling jpeg-decoder v0.1.15 [INFO] [stderr] Compiling crossbeam v0.6.0 [INFO] [stderr] Compiling tiff v0.2.1 [INFO] [stderr] Compiling image v0.21.0 [INFO] [stderr] Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:120:5 [INFO] [stdout] | [INFO] [stdout] 120 | / encoder.encode( [INFO] [stdout] 121 | | &pixels, [INFO] [stdout] 122 | | bounds.0 as u32, [INFO] [stdout] 123 | | bounds.1 as u32, [INFO] [stdout] 124 | | ColorType::Gray(8), [INFO] [stdout] 125 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:157:9 [INFO] [stdout] | [INFO] [stdout] 157 | / crossbeam::scope(|spawner| { [INFO] [stdout] 158 | | for (i, band) in bands.into_iter().enumerate() { [INFO] [stdout] 159 | | let top = rows_per_band * i; [INFO] [stdout] 160 | | let height = band.len() / bounds.0; [INFO] [stdout] ... | [INFO] [stdout] 167 | | } [INFO] [stdout] 168 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 57.42s [INFO] running `Command { std: "docker" "inspect" "c370a3dfa4e529ad45b83edbc16b4af7f919a95302bc74df7e97508bdeb62d0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c370a3dfa4e529ad45b83edbc16b4af7f919a95302bc74df7e97508bdeb62d0c", kill_on_drop: false }` [INFO] [stdout] c370a3dfa4e529ad45b83edbc16b4af7f919a95302bc74df7e97508bdeb62d0c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 51e5cd7ff8c973639fb0ab3fce82fbf8bbe4a49b97ff7b23f937f625fbf1cec8 [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" "51e5cd7ff8c973639fb0ab3fce82fbf8bbe4a49b97ff7b23f937f625fbf1cec8", kill_on_drop: false }` [INFO] [stderr] Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:120:5 [INFO] [stdout] | [INFO] [stdout] 120 | / encoder.encode( [INFO] [stdout] 121 | | &pixels, [INFO] [stdout] 122 | | bounds.0 as u32, [INFO] [stdout] 123 | | bounds.1 as u32, [INFO] [stdout] 124 | | ColorType::Gray(8), [INFO] [stdout] 125 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:157:9 [INFO] [stdout] | [INFO] [stdout] 157 | / crossbeam::scope(|spawner| { [INFO] [stdout] 158 | | for (i, band) in bands.into_iter().enumerate() { [INFO] [stdout] 159 | | let top = rows_per_band * i; [INFO] [stdout] 160 | | let height = band.len() / bounds.0; [INFO] [stdout] ... | [INFO] [stdout] 167 | | } [INFO] [stdout] 168 | | }); [INFO] [stdout] | |___________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.47s [INFO] running `Command { std: "docker" "inspect" "51e5cd7ff8c973639fb0ab3fce82fbf8bbe4a49b97ff7b23f937f625fbf1cec8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51e5cd7ff8c973639fb0ab3fce82fbf8bbe4a49b97ff7b23f937f625fbf1cec8", kill_on_drop: false }` [INFO] [stdout] 51e5cd7ff8c973639fb0ab3fce82fbf8bbe4a49b97ff7b23f937f625fbf1cec8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 38da5e567af969ad6eb56203bf19eb02f68c8be047e0e0921d330b04f15b4200 [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" "38da5e567af969ad6eb56203bf19eb02f68c8be047e0e0921d330b04f15b4200", kill_on_drop: false }` [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:120:5 [INFO] [stderr] | [INFO] [stderr] 120 | / encoder.encode( [INFO] [stderr] 121 | | &pixels, [INFO] [stderr] 122 | | bounds.0 as u32, [INFO] [stderr] 123 | | bounds.1 as u32, [INFO] [stderr] 124 | | ColorType::Gray(8), [INFO] [stderr] 125 | | ); [INFO] [stderr] | |______^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:157:9 [INFO] [stderr] | [INFO] [stderr] 157 | / crossbeam::scope(|spawner| { [INFO] [stderr] 158 | | for (i, band) in bands.into_iter().enumerate() { [INFO] [stderr] 159 | | let top = rows_per_band * i; [INFO] [stderr] 160 | | let height = band.len() / bounds.0; [INFO] [stderr] ... | [INFO] [stderr] 167 | | } [INFO] [stderr] 168 | | }); [INFO] [stderr] | |___________^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `mandelbrot` (bin "mandelbrot" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mandelbrot-e431a8e97f86f7d1) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test test_parse_complex ... ok [INFO] [stdout] test test_parse_pair ... ok [INFO] [stdout] test test_pixel_to_point ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "38da5e567af969ad6eb56203bf19eb02f68c8be047e0e0921d330b04f15b4200", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38da5e567af969ad6eb56203bf19eb02f68c8be047e0e0921d330b04f15b4200", kill_on_drop: false }` [INFO] [stdout] 38da5e567af969ad6eb56203bf19eb02f68c8be047e0e0921d330b04f15b4200