[INFO] cloning repository https://github.com/jurgen1c/Rust-Image-Combiner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jurgen1c/Rust-Image-Combiner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjurgen1c%2FRust-Image-Combiner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjurgen1c%2FRust-Image-Combiner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a76970ef65eaa4184712bd32b5f35d0bae1ba05
[INFO] testing jurgen1c/Rust-Image-Combiner against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjurgen1c%2FRust-Image-Combiner" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jurgen1c/Rust-Image-Combiner
[INFO] finished tweaking git repo https://github.com/jurgen1c/Rust-Image-Combiner
[INFO] tweaked toml for git repo https://github.com/jurgen1c/Rust-Image-Combiner written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jurgen1c/Rust-Image-Combiner on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jurgen1c/Rust-Image-Combiner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memoffset v0.8.0
[INFO] [stderr]   Downloaded either v1.8.1
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.3
[INFO] [stderr]   Downloaded num-rational v0.3.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.14
[INFO] [stderr]   Downloaded miniz_oxide v0.3.7
[INFO] [stderr]   Downloaded weezl v0.1.7
[INFO] [stderr]   Downloaded png v0.16.8
[INFO] [stderr]   Downloaded deflate v0.8.6
[INFO] [stderr]   Downloaded rayon-core v1.11.0
[INFO] [stderr]   Downloaded rayon v1.7.0
[INFO] [stderr]   Downloaded image v0.23.14
[INFO] [stderr]   Downloaded libc v0.2.139
[INFO] [stderr]   Downloaded gif v0.11.4
[INFO] [stderr]   Downloaded tiff v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77822e19af01cd9afcead6b8fe740bec9edf6f9c5b7b9038655f4a6ee8ec62d0
[INFO] running `Command { std: "docker" "start" "-a" "77822e19af01cd9afcead6b8fe740bec9edf6f9c5b7b9038655f4a6ee8ec62d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77822e19af01cd9afcead6b8fe740bec9edf6f9c5b7b9038655f4a6ee8ec62d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77822e19af01cd9afcead6b8fe740bec9edf6f9c5b7b9038655f4a6ee8ec62d0", kill_on_drop: false }`
[INFO] [stdout] 77822e19af01cd9afcead6b8fe740bec9edf6f9c5b7b9038655f4a6ee8ec62d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ded1a40b074b63ede87e994c3a00047dcd9857dae0ecfe711e9c2c0c22e17216
[INFO] running `Command { std: "docker" "start" "-a" "ded1a40b074b63ede87e994c3a00047dcd9857dae0ecfe711e9c2c0c22e17216", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling bytemuck v1.13.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling gif v0.11.4
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.7
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling combiner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |         UnableToReadImageFromPath(std::io::Error),
[INFO] [stdout]    |         ------------------------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -         UnableToReadImageFromPath(std::io::Error),
[INFO] [stdout] 16 +         UnableToReadImageFromPath(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |         UnableToFormatImage(String),
[INFO] [stdout]    |         ------------------- ^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -         UnableToFormatImage(String),
[INFO] [stdout] 17 +         UnableToFormatImage(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |         UnableToDecodeimage(ImageError),
[INFO] [stdout]    |         ------------------- ^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -         UnableToDecodeimage(ImageError),
[INFO] [stdout] 18 +         UnableToDecodeimage(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 |         UnableToSaveImage(ImageError),
[INFO] [stdout]    |         ----------------- ^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -         UnableToSaveImage(ImageError),
[INFO] [stdout] 19 +         UnableToSaveImage(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.24s
[INFO] running `Command { std: "docker" "inspect" "ded1a40b074b63ede87e994c3a00047dcd9857dae0ecfe711e9c2c0c22e17216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ded1a40b074b63ede87e994c3a00047dcd9857dae0ecfe711e9c2c0c22e17216", kill_on_drop: false }`
[INFO] [stdout] ded1a40b074b63ede87e994c3a00047dcd9857dae0ecfe711e9c2c0c22e17216
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4ff14de9f376b1c96aba71055a119c2a1912e0598710bc994e161b16e2ebf62
[INFO] running `Command { std: "docker" "start" "-a" "a4ff14de9f376b1c96aba71055a119c2a1912e0598710bc994e161b16e2ebf62", kill_on_drop: false }`
[INFO] [stderr]    Compiling combiner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |         UnableToReadImageFromPath(std::io::Error),
[INFO] [stdout]    |         ------------------------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -         UnableToReadImageFromPath(std::io::Error),
[INFO] [stdout] 16 +         UnableToReadImageFromPath(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |         UnableToFormatImage(String),
[INFO] [stdout]    |         ------------------- ^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -         UnableToFormatImage(String),
[INFO] [stdout] 17 +         UnableToFormatImage(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |         UnableToDecodeimage(ImageError),
[INFO] [stdout]    |         ------------------- ^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -         UnableToDecodeimage(ImageError),
[INFO] [stdout] 18 +         UnableToDecodeimage(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 |         UnableToSaveImage(ImageError),
[INFO] [stdout]    |         ----------------- ^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -         UnableToSaveImage(ImageError),
[INFO] [stdout] 19 +         UnableToSaveImage(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "a4ff14de9f376b1c96aba71055a119c2a1912e0598710bc994e161b16e2ebf62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4ff14de9f376b1c96aba71055a119c2a1912e0598710bc994e161b16e2ebf62", kill_on_drop: false }`
[INFO] [stdout] a4ff14de9f376b1c96aba71055a119c2a1912e0598710bc994e161b16e2ebf62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8134cf1397860f68e6af0c62b6b133266524cd1ce84316f01267111e39e9b451
[INFO] running `Command { std: "docker" "start" "-a" "8134cf1397860f68e6af0c62b6b133266524cd1ce84316f01267111e39e9b451", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/main.rs:16:29
[INFO] [stderr]    |
[INFO] [stderr] 16 |         UnableToReadImageFromPath(std::io::Error),
[INFO] [stderr]    |         ------------------------- ^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 16 -         UnableToReadImageFromPath(std::io::Error),
[INFO] [stderr] 16 +         UnableToReadImageFromPath(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/main.rs:17:23
[INFO] [stderr]    |
[INFO] [stderr] 17 |         UnableToFormatImage(String),
[INFO] [stderr]    |         ------------------- ^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 17 -         UnableToFormatImage(String),
[INFO] [stderr] 17 +         UnableToFormatImage(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/main.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 |         UnableToDecodeimage(ImageError),
[INFO] [stderr]    |         ------------------- ^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 18 -         UnableToDecodeimage(ImageError),
[INFO] [stderr] 18 +         UnableToDecodeimage(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/main.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 |         UnableToSaveImage(ImageError),
[INFO] [stderr]    |         ----------------- ^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ImageDataErrors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 19 -         UnableToSaveImage(ImageError),
[INFO] [stderr] 19 +         UnableToSaveImage(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `combiner` (bin "combiner" test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/combiner-9aa7d0f29986eae4)
[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" "8134cf1397860f68e6af0c62b6b133266524cd1ce84316f01267111e39e9b451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8134cf1397860f68e6af0c62b6b133266524cd1ce84316f01267111e39e9b451", kill_on_drop: false }`
[INFO] [stdout] 8134cf1397860f68e6af0c62b6b133266524cd1ce84316f01267111e39e9b451
