[INFO] cloning repository https://github.com/Pomettini/impostor-spritecooker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Pomettini/impostor-spritecooker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPomettini%2Fimpostor-spritecooker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPomettini%2Fimpostor-spritecooker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0eb519a4adee9fb05fce0da8134bb75584b31c8
[INFO] checking Pomettini/impostor-spritecooker against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPomettini%2Fimpostor-spritecooker" "/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/Pomettini/impostor-spritecooker
[INFO] finished tweaking git repo https://github.com/Pomettini/impostor-spritecooker
[INFO] tweaked toml for git repo https://github.com/Pomettini/impostor-spritecooker written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Pomettini/impostor-spritecooker on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Pomettini/impostor-spritecooker 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" "+507271bc119683008ec719ecee48814e8ac86c65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-derive v0.2.3
[INFO] [stderr]   Downloaded num-traits v0.2.6
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[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f5a2d81eddc7689a1b97b8165f1ace14ff8c9ac7bded3faf0077ecc6d27452e
[INFO] running `Command { std: "docker" "start" "-a" "0f5a2d81eddc7689a1b97b8165f1ace14ff8c9ac7bded3faf0077ecc6d27452e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f5a2d81eddc7689a1b97b8165f1ace14ff8c9ac7bded3faf0077ecc6d27452e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5a2d81eddc7689a1b97b8165f1ace14ff8c9ac7bded3faf0077ecc6d27452e", kill_on_drop: false }`
[INFO] [stdout] 0f5a2d81eddc7689a1b97b8165f1ace14ff8c9ac7bded3faf0077ecc6d27452e
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6a0db1e68240d0df36d6e5d64838fc5144bb6525de5ba9991b8d926d7644fe7
[INFO] running `Command { std: "docker" "start" "-a" "e6a0db1e68240d0df36d6e5d64838fc5144bb6525de5ba9991b8d926d7644fe7", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking exoquant v0.2.0
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling stb_image v0.2.2
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking spritecooker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitmap::Bitmap`
[INFO] [stdout]  --> src/formats/pico8.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bitmap::Bitmap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitmap::Bitmap`
[INFO] [stdout]  --> src/formats/pico8.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bitmap::Bitmap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `c` is assigned to, but never used
[INFO] [stdout]   --> src/bmpto2bpp.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut c = Colorf::zero();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_c` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmpto2bpp.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         c.r = f64::from(r);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmpto2bpp.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         c.g = f64::from(g);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmpto2bpp.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         c.b = f64::from(b);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `c` is assigned to, but never used
[INFO] [stdout]   --> src/bmptovga.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut c = Colorf::zero();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_c` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmptovga.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         c.r = f64::from(r);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmptovga.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         c.g = f64::from(g);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmptovga.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         c.b = f64::from(b);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/formats/pico8.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn serialize(data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_test`
[INFO] [stdout]   --> src/formats/pico8.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let input_test = "012300004567000089ab0000cdef0000000000000000000000000000000000000000000000000000000000000000000000000000000000...
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Encode` is never used
[INFO] [stdout]  --> src/formats/mod.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Encode {
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Decode` is never used
[INFO] [stdout]   --> src/formats/mod.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait Decode {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pico8Cart` is never constructed
[INFO] [stdout]  --> src/formats/pico8.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Pico8Cart {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `serialize` are never used
[INFO] [stdout]   --> src/formats/pico8.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Pico8Cart {
[INFO] [stdout]    | -------------- associated functions in this implementation
[INFO] [stdout] 10 |     pub fn new(data: Vec<u8>) -> Pico8Cart {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn serialize(data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, and `data` are never read
[INFO] [stdout]  --> src/image.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Image {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 4 |     width: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     height: usize,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     data: Bitmap,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `add_offsets` is never used
[INFO] [stdout]   --> src/previewimage.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl PreviewImage {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn add_offsets(image: &mut Bitmap) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, and `data` are never read
[INFO] [stdout]  --> src/sprite.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Sprite {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 4 |     width: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     height: usize,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     data: Bitmap,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/previewimage.rs:69:49
[INFO] [stdout]    |
[INFO] [stdout] 69 |             LoadResult::Error(string) => panic!(string),
[INFO] [stdout]    |                                                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 69 |             LoadResult::Error(string) => panic!("{}", string),
[INFO] [stdout]    |                                                 +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/spritesheet.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |             LoadResult::Error(string) => panic!(string),
[INFO] [stdout]    |                                                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 30 |             LoadResult::Error(string) => panic!("{}", string),
[INFO] [stdout]    |                                                 +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `c` is assigned to, but never used
[INFO] [stdout]   --> src/bmpto2bpp.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut c = Colorf::zero();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_c` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmpto2bpp.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         c.r = f64::from(r);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmpto2bpp.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         c.g = f64::from(g);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmpto2bpp.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         c.b = f64::from(b);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `c` is assigned to, but never used
[INFO] [stdout]   --> src/bmptovga.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut c = Colorf::zero();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_c` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmptovga.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         c.r = f64::from(r);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmptovga.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         c.g = f64::from(g);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bmptovga.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         c.b = f64::from(b);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/formats/pico8.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn serialize(data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Encode` is never used
[INFO] [stdout]  --> src/formats/mod.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Encode {
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Decode` is never used
[INFO] [stdout]   --> src/formats/mod.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait Decode {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pico8Cart` is never constructed
[INFO] [stdout]  --> src/formats/pico8.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Pico8Cart {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `serialize` are never used
[INFO] [stdout]   --> src/formats/pico8.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Pico8Cart {
[INFO] [stdout]    | -------------- associated functions in this implementation
[INFO] [stdout] 10 |     pub fn new(data: Vec<u8>) -> Pico8Cart {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn serialize(data: Vec<u8>) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, and `data` are never read
[INFO] [stdout]  --> src/image.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Image {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 4 |     width: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     height: usize,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     data: Bitmap,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `add_offsets` is never used
[INFO] [stdout]   --> src/previewimage.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl PreviewImage {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn add_offsets(image: &mut Bitmap) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, and `data` are never read
[INFO] [stdout]  --> src/sprite.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Sprite {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 4 |     width: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     height: usize,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 6 |     data: Bitmap,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/previewimage.rs:69:49
[INFO] [stdout]    |
[INFO] [stdout] 69 |             LoadResult::Error(string) => panic!(string),
[INFO] [stdout]    |                                                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 69 |             LoadResult::Error(string) => panic!("{}", string),
[INFO] [stdout]    |                                                 +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/spritesheet.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |             LoadResult::Error(string) => panic!(string),
[INFO] [stdout]    |                                                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 30 |             LoadResult::Error(string) => panic!("{}", string),
[INFO] [stdout]    |                                                 +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.24s
[INFO] running `Command { std: "docker" "inspect" "e6a0db1e68240d0df36d6e5d64838fc5144bb6525de5ba9991b8d926d7644fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6a0db1e68240d0df36d6e5d64838fc5144bb6525de5ba9991b8d926d7644fe7", kill_on_drop: false }`
[INFO] [stdout] e6a0db1e68240d0df36d6e5d64838fc5144bb6525de5ba9991b8d926d7644fe7
