[INFO] cloning repository https://github.com/pavozayac/complex-fractals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pavozayac/complex-fractals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpavozayac%2Fcomplex-fractals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpavozayac%2Fcomplex-fractals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a966e3887ba63cce91ea399a32eb71e2d1a9e97b
[INFO] testing pavozayac/complex-fractals 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%2Fpavozayac%2Fcomplex-fractals" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pavozayac/complex-fractals 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/pavozayac/complex-fractals
[INFO] finished tweaking git repo https://github.com/pavozayac/complex-fractals
[INFO] tweaked toml for git repo https://github.com/pavozayac/complex-fractals written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/pavozayac/complex-fractals 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] bc1f9571c569c14a9af5e1c320ef64b46f7ece18c83b1f86eaca7e9540ee434c
[INFO] running `Command { std: "docker" "start" "-a" "bc1f9571c569c14a9af5e1c320ef64b46f7ece18c83b1f86eaca7e9540ee434c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc1f9571c569c14a9af5e1c320ef64b46f7ece18c83b1f86eaca7e9540ee434c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc1f9571c569c14a9af5e1c320ef64b46f7ece18c83b1f86eaca7e9540ee434c", kill_on_drop: false }`
[INFO] [stdout] bc1f9571c569c14a9af5e1c320ef64b46f7ece18c83b1f86eaca7e9540ee434c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 0b01552d8650734e8b10b3d5d73f004f3039a4df2784df8207a3219ee77e0070
[INFO] running `Command { std: "docker" "start" "-a" "0b01552d8650734e8b10b3d5d73f004f3039a4df2784df8207a3219ee77e0070", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling weezl v0.1.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bytemuck v1.4.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling gif v0.11.1
[INFO] [stderr]    Compiling png v0.16.7
[INFO] [stderr]    Compiling tiff v0.5.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling image v0.23.10
[INFO] [stderr]    Compiling mandel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/main.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |             let cx = y as f32 * scale_x - 1.5;
[INFO] [stdout]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cy`
[INFO] [stdout]   --> src/main.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let cy = x as f32 * scale_y - 1.5;
[INFO] [stdout]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_cy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_res`
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn get_res () -> Result<(usize,usize), io::Error> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.13s
[INFO] running `Command { std: "docker" "inspect" "0b01552d8650734e8b10b3d5d73f004f3039a4df2784df8207a3219ee77e0070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b01552d8650734e8b10b3d5d73f004f3039a4df2784df8207a3219ee77e0070", kill_on_drop: false }`
[INFO] [stdout] 0b01552d8650734e8b10b3d5d73f004f3039a4df2784df8207a3219ee77e0070
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 812a23e217bd64730abe1f950a2ae4c6a493caaeb637fc7b4fda17c6ae7e56ac
[INFO] running `Command { std: "docker" "start" "-a" "812a23e217bd64730abe1f950a2ae4c6a493caaeb637fc7b4fda17c6ae7e56ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling mandel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/main.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |             let cx = y as f32 * scale_x - 1.5;
[INFO] [stdout]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cy`
[INFO] [stdout]   --> src/main.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let cy = x as f32 * scale_y - 1.5;
[INFO] [stdout]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_cy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_res`
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn get_res () -> Result<(usize,usize), io::Error> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "812a23e217bd64730abe1f950a2ae4c6a493caaeb637fc7b4fda17c6ae7e56ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "812a23e217bd64730abe1f950a2ae4c6a493caaeb637fc7b4fda17c6ae7e56ac", kill_on_drop: false }`
[INFO] [stdout] 812a23e217bd64730abe1f950a2ae4c6a493caaeb637fc7b4fda17c6ae7e56ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 5568a03145704465946e2514f183dc39ea91711a95626e035ae9691df12268fe
[INFO] running `Command { std: "docker" "start" "-a" "5568a03145704465946e2514f183dc39ea91711a95626e035ae9691df12268fe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `cx`
[INFO] [stderr]   --> src/main.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |             let cx = y as f32 * scale_x - 1.5;
[INFO] [stderr]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cy`
[INFO] [stderr]   --> src/main.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |             let cy = x as f32 * scale_y - 1.5;
[INFO] [stderr]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_cy`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_res`
[INFO] [stderr]  --> src/main.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn get_res () -> Result<(usize,usize), io::Error> {
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mandel` (bin "mandel" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mandel-f97ffc2a366fa9ce)
[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" "5568a03145704465946e2514f183dc39ea91711a95626e035ae9691df12268fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5568a03145704465946e2514f183dc39ea91711a95626e035ae9691df12268fe", kill_on_drop: false }`
[INFO] [stdout] 5568a03145704465946e2514f183dc39ea91711a95626e035ae9691df12268fe