[INFO] cloning repository https://github.com/valentinvale/rust-tutorial-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/valentinvale/rust-tutorial-image-combiner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalentinvale%2Frust-tutorial-image-combiner", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalentinvale%2Frust-tutorial-image-combiner'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4b3bb11b8a78e70f3940e4aeb0aa576df9269afb [INFO] testing valentinvale/rust-tutorial-image-combiner against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalentinvale%2Frust-tutorial-image-combiner" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/valentinvale/rust-tutorial-image-combiner [INFO] finished tweaking git repo https://github.com/valentinvale/rust-tutorial-image-combiner [INFO] tweaked toml for git repo https://github.com/valentinvale/rust-tutorial-image-combiner written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/valentinvale/rust-tutorial-image-combiner on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/valentinvale/rust-tutorial-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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2acf2e95b9e2b8d9e82cbb3fd2cc8f61a4cab22c6d14c57ddc03956a597d7fc6 [INFO] running `Command { std: "docker" "start" "-a" "2acf2e95b9e2b8d9e82cbb3fd2cc8f61a4cab22c6d14c57ddc03956a597d7fc6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2acf2e95b9e2b8d9e82cbb3fd2cc8f61a4cab22c6d14c57ddc03956a597d7fc6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2acf2e95b9e2b8d9e82cbb3fd2cc8f61a4cab22c6d14c57ddc03956a597d7fc6", kill_on_drop: false }` [INFO] [stdout] 2acf2e95b9e2b8d9e82cbb3fd2cc8f61a4cab22c6d14c57ddc03956a597d7fc6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b05d239edf5bffed9cf4522cb8f5e5301a3c4a9b4bb3b1b7ad98b8e4fa7cb400 [INFO] running `Command { std: "docker" "start" "-a" "b05d239edf5bffed9cf4522cb8f5e5301a3c4a9b4bb3b1b7ad98b8e4fa7cb400", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling equator-macro v0.4.2 [INFO] [stderr] Compiling anyhow v1.0.99 [INFO] [stderr] Compiling built v0.7.7 [INFO] [stderr] Compiling miniz_oxide v0.8.9 [INFO] [stderr] Compiling arrayvec v0.7.6 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling profiling-procmacros v1.0.17 [INFO] [stderr] Compiling itertools v0.12.1 [INFO] [stderr] Compiling num-derive v0.4.2 [INFO] [stderr] Compiling arg_enum_proc_macro v0.3.4 [INFO] [stderr] Compiling simd_helpers v0.1.0 [INFO] [stderr] Compiling weezl v0.1.10 [INFO] [stderr] Compiling noop_proc_macro v0.3.0 [INFO] [stderr] Compiling rayon v1.11.0 [INFO] [stderr] Compiling new_debug_unreachable v1.0.6 [INFO] [stderr] Compiling quick-error v2.0.1 [INFO] [stderr] Compiling imgref v1.11.0 [INFO] [stderr] Compiling bitstream-io v2.6.0 [INFO] [stderr] Compiling avif-serialize v0.8.6 [INFO] [stderr] Compiling loop9 v0.1.5 [INFO] [stderr] Compiling profiling v1.0.17 [INFO] [stderr] Compiling half v2.6.0 [INFO] [stderr] Compiling zune-inflate v0.2.54 [INFO] [stderr] Compiling rav1e v0.7.1 [INFO] [stderr] Compiling bytemuck v1.23.2 [INFO] [stderr] Compiling flate2 v1.1.2 [INFO] [stderr] Compiling rgb v0.8.52 [INFO] [stderr] Compiling jpeg-decoder v0.3.2 [INFO] [stderr] Compiling byteorder-lite v0.1.0 [INFO] [stderr] Compiling zune-core v0.4.12 [INFO] [stderr] Compiling equator v0.4.2 [INFO] [stderr] Compiling bit_field v0.10.2 [INFO] [stderr] Compiling lebe v0.5.2 [INFO] [stderr] Compiling png v0.17.16 [INFO] [stderr] Compiling gif v0.13.3 [INFO] [stderr] Compiling qoi v0.4.1 [INFO] [stderr] Compiling image-webp v0.2.3 [INFO] [stderr] Compiling zune-jpeg v0.4.20 [INFO] [stderr] Compiling exr v1.73.0 [INFO] [stderr] Compiling aligned-vec v0.6.4 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling v_frame v0.3.9 [INFO] [stderr] Compiling tiff v0.9.1 [INFO] [stderr] Compiling num-bigint v0.4.6 [INFO] [stderr] Compiling maybe-rayon v0.1.1 [INFO] [stderr] Compiling num-rational v0.4.2 [INFO] [stderr] Compiling av1-grain v0.2.4 [INFO] [stderr] Compiling ravif v0.11.20 [INFO] [stderr] Compiling image v0.25.6 [INFO] [stderr] Compiling image_combiner v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:11:31 [INFO] [stdout] | [INFO] [stdout] 11 | 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)]` (part of `#[warn(unused)]`) 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] 11 - UnableToReadImageFromPath(std::io::Error), [INFO] [stdout] 11 + UnableToReadImageFromPath(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:12:23 [INFO] [stdout] | [INFO] [stdout] 12 | UnableToSaveImage(image::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] 12 - UnableToSaveImage(image::ImageError), [INFO] [stdout] 12 + UnableToSaveImage(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:13:25 [INFO] [stdout] | [INFO] [stdout] 13 | UnableToDecodeImage(image::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] 13 - UnableToDecodeImage(image::ImageError), [INFO] [stdout] 13 + UnableToDecodeImage(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:14:25 [INFO] [stdout] | [INFO] [stdout] 14 | 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] 14 - UnableToFormatImage(String), [INFO] [stdout] 14 + UnableToFormatImage(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.63s [INFO] running `Command { std: "docker" "inspect" "b05d239edf5bffed9cf4522cb8f5e5301a3c4a9b4bb3b1b7ad98b8e4fa7cb400", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b05d239edf5bffed9cf4522cb8f5e5301a3c4a9b4bb3b1b7ad98b8e4fa7cb400", kill_on_drop: false }` [INFO] [stdout] b05d239edf5bffed9cf4522cb8f5e5301a3c4a9b4bb3b1b7ad98b8e4fa7cb400 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de5b98ed838fb4f9470ab9de44609e2e9f864913e8f31b43d694b4019c54adf1 [INFO] running `Command { std: "docker" "start" "-a" "de5b98ed838fb4f9470ab9de44609e2e9f864913e8f31b43d694b4019c54adf1", kill_on_drop: false }` [INFO] [stderr] Compiling image_combiner v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:11:31 [INFO] [stdout] | [INFO] [stdout] 11 | 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)]` (part of `#[warn(unused)]`) 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] 11 - UnableToReadImageFromPath(std::io::Error), [INFO] [stdout] 11 + UnableToReadImageFromPath(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:12:23 [INFO] [stdout] | [INFO] [stdout] 12 | UnableToSaveImage(image::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] 12 - UnableToSaveImage(image::ImageError), [INFO] [stdout] 12 + UnableToSaveImage(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:13:25 [INFO] [stdout] | [INFO] [stdout] 13 | UnableToDecodeImage(image::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] 13 - UnableToDecodeImage(image::ImageError), [INFO] [stdout] 13 + UnableToDecodeImage(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:14:25 [INFO] [stdout] | [INFO] [stdout] 14 | 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] 14 - UnableToFormatImage(String), [INFO] [stdout] 14 + UnableToFormatImage(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `Command { std: "docker" "inspect" "de5b98ed838fb4f9470ab9de44609e2e9f864913e8f31b43d694b4019c54adf1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de5b98ed838fb4f9470ab9de44609e2e9f864913e8f31b43d694b4019c54adf1", kill_on_drop: false }` [INFO] [stdout] de5b98ed838fb4f9470ab9de44609e2e9f864913e8f31b43d694b4019c54adf1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3efc34fa67400aaab40fc35f73bff51dc27db8f5656529e0159a8e52d4b697b2 [INFO] running `Command { std: "docker" "start" "-a" "3efc34fa67400aaab40fc35f73bff51dc27db8f5656529e0159a8e52d4b697b2", kill_on_drop: false }` [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/main.rs:11:31 [INFO] [stderr] | [INFO] [stderr] 11 | 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)]` (part of `#[warn(unused)]`) 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] 11 - UnableToReadImageFromPath(std::io::Error), [INFO] [stderr] 11 + UnableToReadImageFromPath(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/main.rs:12:23 [INFO] [stderr] | [INFO] [stderr] 12 | UnableToSaveImage(image::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] 12 - UnableToSaveImage(image::ImageError), [INFO] [stderr] 12 + UnableToSaveImage(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/main.rs:13:25 [INFO] [stderr] | [INFO] [stderr] 13 | UnableToDecodeImage(image::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] 13 - UnableToDecodeImage(image::ImageError), [INFO] [stderr] 13 + UnableToDecodeImage(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/main.rs:14:25 [INFO] [stderr] | [INFO] [stderr] 14 | 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] 14 - UnableToFormatImage(String), [INFO] [stderr] 14 + UnableToFormatImage(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `image_combiner` (bin "image_combiner" test) generated 4 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/image_combiner-78e0a1f0761bbd0a) [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" "3efc34fa67400aaab40fc35f73bff51dc27db8f5656529e0159a8e52d4b697b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3efc34fa67400aaab40fc35f73bff51dc27db8f5656529e0159a8e52d4b697b2", kill_on_drop: false }` [INFO] [stdout] 3efc34fa67400aaab40fc35f73bff51dc27db8f5656529e0159a8e52d4b697b2