[INFO] fetching crate pxo 0.2.0...
[INFO] testing pxo-0.2.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate pxo 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate pxo 0.2.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pxo 0.2.0
[INFO] finished tweaking crates.io crate pxo 0.2.0
[INFO] tweaked toml for crates.io crate pxo 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 457ac49129198c7795bd536b3575e0fddaaa7e061a8bb5152a2395eda4b8524d
[INFO] running `Command { std: "docker" "start" "-a" "457ac49129198c7795bd536b3575e0fddaaa7e061a8bb5152a2395eda4b8524d", kill_on_drop: false }`
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[INFO] [stdout] 457ac49129198c7795bd536b3575e0fddaaa7e061a8bb5152a2395eda4b8524d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ed2bee4c17fedd5598daaf4401aa7256bc0ea3af4c48dec1cd2d2cf1f0e8c4a
[INFO] running `Command { std: "docker" "start" "-a" "7ed2bee4c17fedd5598daaf4401aa7256bc0ea3af4c48dec1cd2d2cf1f0e8c4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
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[INFO] [stderr]    Compiling serde v1.0.194
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[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling zstd v0.12.4
[INFO] [stderr]    Compiling pxo v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.02s
[INFO] running `Command { std: "docker" "inspect" "7ed2bee4c17fedd5598daaf4401aa7256bc0ea3af4c48dec1cd2d2cf1f0e8c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ed2bee4c17fedd5598daaf4401aa7256bc0ea3af4c48dec1cd2d2cf1f0e8c4a", kill_on_drop: false }`
[INFO] [stdout] 7ed2bee4c17fedd5598daaf4401aa7256bc0ea3af4c48dec1cd2d2cf1f0e8c4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15182d0e0e173cb3a9e4916afb68f955f8fa411929ca1bb4af41443c9b89871f
[INFO] running `Command { std: "docker" "start" "-a" "15182d0e0e173cb3a9e4916afb68f955f8fa411929ca1bb4af41443c9b89871f", kill_on_drop: false }`
[INFO] [stderr]    Compiling pxo v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "15182d0e0e173cb3a9e4916afb68f955f8fa411929ca1bb4af41443c9b89871f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15182d0e0e173cb3a9e4916afb68f955f8fa411929ca1bb4af41443c9b89871f", kill_on_drop: false }`
[INFO] [stdout] 15182d0e0e173cb3a9e4916afb68f955f8fa411929ca1bb4af41443c9b89871f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2f5f8a9155711dcfbb4435a65a1e3574e049b1c22e38e7a8b37fd420e5dc0433
[INFO] running `Command { std: "docker" "start" "-a" "2f5f8a9155711dcfbb4435a65a1e3574e049b1c22e38e7a8b37fd420e5dc0433", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pxo-6f87e2aa149037e3)
[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] [stderr]    Doc-tests pxo
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 19) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 19) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SpriteOptions`
[INFO] [stdout]   --> src/lib.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 10 | let sprite = pxo::Sprite::from(pxo, SpriteOptions::Default())?;
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^ use of undeclared type `SpriteOptions`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use pxo::SpriteOptions;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SpriteOptions`
[INFO] [stdout]   --> src/lib.rs:29:38
[INFO] [stdout]    |
[INFO] [stdout] 13 | let sprite = pxo::Sprite::load(file, SpriteOptions::Default())?;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^ use of undeclared type `SpriteOptions`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use pxo::SpriteOptions;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `sprite_a` in this scope
[INFO] [stdout]   --> src/lib.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | sprite_a = pxo::Sprite::load(file_a, SpriteOptions::Default())?;
[INFO] [stdout]    | ^^^^^^^^ help: a local variable with a similar name exists: `sprite`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `file_a` in this scope
[INFO] [stdout]   --> src/lib.rs:36:30
[INFO] [stdout]    |
[INFO] [stdout] 20 | sprite_a = pxo::Sprite::load(file_a, SpriteOptions::Default())?;
[INFO] [stdout]    |                              ^^^^^^ help: a local variable with a similar name exists: `file`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SpriteOptions`
[INFO] [stdout]   --> src/lib.rs:36:38
[INFO] [stdout]    |
[INFO] [stdout] 20 | sprite_a = pxo::Sprite::load(file_a, SpriteOptions::Default())?;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^ use of undeclared type `SpriteOptions`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use pxo::SpriteOptions;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `sprite_b` in this scope
[INFO] [stdout]   --> src/lib.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | sprite_b = pxo::Sprite::load(file_b, SpriteOptions::Default())?;
[INFO] [stdout]    | ^^^^^^^^ help: a local variable with a similar name exists: `sprite`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `file_b` in this scope
[INFO] [stdout]   --> src/lib.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 21 | sprite_b = pxo::Sprite::load(file_b, SpriteOptions::Default())?;
[INFO] [stdout]    |                              ^^^^^^ help: a local variable with a similar name exists: `file`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SpriteOptions`
[INFO] [stdout]   --> src/lib.rs:37:38
[INFO] [stdout]    |
[INFO] [stdout] 21 | sprite_b = pxo::Sprite::load(file_b, SpriteOptions::Default())?;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^ use of undeclared type `SpriteOptions`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use pxo::SpriteOptions;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `sprite_a` in this scope
[INFO] [stdout]   --> src/lib.rs:39:57
[INFO] [stdout]    |
[INFO] [stdout] 23 | let (packed, image) = pxo::PackedSprite::pack_sprites(&[sprite_a, sprite_b], 2048, 2048)?;
[INFO] [stdout]    |                                                         ^^^^^^^^ help: a local variable with a similar name exists: `sprite`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `sprite_b` in this scope
[INFO] [stdout]   --> src/lib.rs:39:67
[INFO] [stdout]    |
[INFO] [stdout] 23 | let (packed, image) = pxo::PackedSprite::pack_sprites(&[sprite_a, sprite_b], 2048, 2048)?;
[INFO] [stdout]    |                                                                   ^^^^^^^^ help: a local variable with a similar name exists: `sprite`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:22:49
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]   |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] 6 | let file = File::open("path/to/your/sprite.pxo")?;
[INFO] [stdout]   |                                                 ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:25:31
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]   |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let pxo = pxo::Pxo::load(file)?;
[INFO] [stdout]   |                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:26:62
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 | let sprite = pxo::Sprite::from(pxo, SpriteOptions::Default())?;
[INFO] [stdout]    |                                                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:29:63
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 13 | let sprite = pxo::Sprite::load(file, SpriteOptions::Default())?;
[INFO] [stdout]    |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:33:73
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 17 | let (packed, image) = pxo::PackedSprite::pack_sprite(sprite, 2048, 2048)?;
[INFO] [stdout]    |                                                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:36:63
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 20 | sprite_a = pxo::Sprite::load(file_a, SpriteOptions::Default())?;
[INFO] [stdout]    |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:37:63
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 21 | sprite_b = pxo::Sprite::load(file_b, SpriteOptions::Default())?;
[INFO] [stdout]    |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:39:89
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 23 | let (packed, image) = pxo::PackedSprite::pack_sprites(&[sprite_a, sprite_b], 2048, 2048)?;
[INFO] [stdout]    |                                                                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 19)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "2f5f8a9155711dcfbb4435a65a1e3574e049b1c22e38e7a8b37fd420e5dc0433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f5f8a9155711dcfbb4435a65a1e3574e049b1c22e38e7a8b37fd420e5dc0433", kill_on_drop: false }`
[INFO] [stdout] 2f5f8a9155711dcfbb4435a65a1e3574e049b1c22e38e7a8b37fd420e5dc0433
[INFO] testing pxo-0.2.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate pxo 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate pxo 0.2.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pxo 0.2.0
[INFO] finished tweaking crates.io crate pxo 0.2.0
[INFO] tweaked toml for crates.io crate pxo 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5261f2bbdeb7c518d8ecca427d36bdd35de09a4a700dbcac2dafa8924e4b94d7
[INFO] running `Command { std: "docker" "start" "-a" "5261f2bbdeb7c518d8ecca427d36bdd35de09a4a700dbcac2dafa8924e4b94d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5261f2bbdeb7c518d8ecca427d36bdd35de09a4a700dbcac2dafa8924e4b94d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5261f2bbdeb7c518d8ecca427d36bdd35de09a4a700dbcac2dafa8924e4b94d7", kill_on_drop: false }`
[INFO] [stdout] 5261f2bbdeb7c518d8ecca427d36bdd35de09a4a700dbcac2dafa8924e4b94d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c961f00e02fc8c6f8cfa09af611a244757d759eabb3b7bd76ff231877eb4fba
[INFO] running `Command { std: "docker" "start" "-a" "1c961f00e02fc8c6f8cfa09af611a244757d759eabb3b7bd76ff231877eb4fba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling zstd-safe v6.0.6
[INFO] [stderr]    Compiling flume v0.11.0
[INFO] [stderr]    Compiling fdeflate v0.3.3
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling jobserver v0.1.27
[INFO] [stderr]    Compiling lebe v0.5.2
[INFO] [stderr]    Compiling half v2.2.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling png v0.17.10
[INFO] [stderr]    Compiling exr v1.71.0
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling gif v0.12.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling jpeg-decoder v0.3.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling zstd-sys v2.0.9+zstd.1.5.5
[INFO] [stderr]    Compiling rectangle-pack v0.4.2
[INFO] [stderr]    Compiling tiff v0.9.0
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling image v0.24.7
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling zstd v0.12.4
[INFO] [stderr]    Compiling pxo v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.41s
[INFO] running `Command { std: "docker" "inspect" "1c961f00e02fc8c6f8cfa09af611a244757d759eabb3b7bd76ff231877eb4fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c961f00e02fc8c6f8cfa09af611a244757d759eabb3b7bd76ff231877eb4fba", kill_on_drop: false }`
[INFO] [stdout] 1c961f00e02fc8c6f8cfa09af611a244757d759eabb3b7bd76ff231877eb4fba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e693ad5487f82ce2a73d6072d38103d6b1f7b63692da5e8cbcc5eab691e2aed4
[INFO] running `Command { std: "docker" "start" "-a" "e693ad5487f82ce2a73d6072d38103d6b1f7b63692da5e8cbcc5eab691e2aed4", kill_on_drop: false }`
[INFO] [stderr]    Compiling pxo v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "e693ad5487f82ce2a73d6072d38103d6b1f7b63692da5e8cbcc5eab691e2aed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e693ad5487f82ce2a73d6072d38103d6b1f7b63692da5e8cbcc5eab691e2aed4", kill_on_drop: false }`
[INFO] [stdout] e693ad5487f82ce2a73d6072d38103d6b1f7b63692da5e8cbcc5eab691e2aed4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 838fe7da7555b71961459ac29cc579da21fa7e87820b1fbabd962e5f66fab0f4
[INFO] running `Command { std: "docker" "start" "-a" "838fe7da7555b71961459ac29cc579da21fa7e87820b1fbabd962e5f66fab0f4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pxo-6224267e5df7b70e)
[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] [stderr]    Doc-tests pxo
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/lib.rs - (line 19) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 19) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SpriteOptions`
[INFO] [stdout]   --> src/lib.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 10 | let sprite = pxo::Sprite::from(pxo, SpriteOptions::Default())?;
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^ use of undeclared type `SpriteOptions`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use pxo::SpriteOptions;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SpriteOptions`
[INFO] [stdout]   --> src/lib.rs:29:38
[INFO] [stdout]    |
[INFO] [stdout] 13 | let sprite = pxo::Sprite::load(file, SpriteOptions::Default())?;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^ use of undeclared type `SpriteOptions`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use pxo::SpriteOptions;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `sprite_a` in this scope
[INFO] [stdout]   --> src/lib.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | sprite_a = pxo::Sprite::load(file_a, SpriteOptions::Default())?;
[INFO] [stdout]    | ^^^^^^^^ help: a local variable with a similar name exists: `sprite`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `file_a` in this scope
[INFO] [stdout]   --> src/lib.rs:36:30
[INFO] [stdout]    |
[INFO] [stdout] 20 | sprite_a = pxo::Sprite::load(file_a, SpriteOptions::Default())?;
[INFO] [stdout]    |                              ^^^^^^ help: a local variable with a similar name exists: `file`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SpriteOptions`
[INFO] [stdout]   --> src/lib.rs:36:38
[INFO] [stdout]    |
[INFO] [stdout] 20 | sprite_a = pxo::Sprite::load(file_a, SpriteOptions::Default())?;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^ use of undeclared type `SpriteOptions`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use pxo::SpriteOptions;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `sprite_b` in this scope
[INFO] [stdout]   --> src/lib.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | sprite_b = pxo::Sprite::load(file_b, SpriteOptions::Default())?;
[INFO] [stdout]    | ^^^^^^^^ help: a local variable with a similar name exists: `sprite`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `file_b` in this scope
[INFO] [stdout]   --> src/lib.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout] 21 | sprite_b = pxo::Sprite::load(file_b, SpriteOptions::Default())?;
[INFO] [stdout]    |                              ^^^^^^ help: a local variable with a similar name exists: `file`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SpriteOptions`
[INFO] [stdout]   --> src/lib.rs:37:38
[INFO] [stdout]    |
[INFO] [stdout] 21 | sprite_b = pxo::Sprite::load(file_b, SpriteOptions::Default())?;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^ use of undeclared type `SpriteOptions`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 2  + use pxo::SpriteOptions;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `sprite_a` in this scope
[INFO] [stdout]   --> src/lib.rs:39:57
[INFO] [stdout]    |
[INFO] [stdout] 23 | let (packed, image) = pxo::PackedSprite::pack_sprites(&[sprite_a, sprite_b], 2048, 2048)?;
[INFO] [stdout]    |                                                         ^^^^^^^^ help: a local variable with a similar name exists: `sprite`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `sprite_b` in this scope
[INFO] [stdout]   --> src/lib.rs:39:67
[INFO] [stdout]    |
[INFO] [stdout] 23 | let (packed, image) = pxo::PackedSprite::pack_sprites(&[sprite_a, sprite_b], 2048, 2048)?;
[INFO] [stdout]    |                                                                   ^^^^^^^^ help: a local variable with a similar name exists: `sprite`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:22:49
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]   |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] 6 | let file = File::open("path/to/your/sprite.pxo")?;
[INFO] [stdout]   |                                                 ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:25:31
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]   |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let pxo = pxo::Pxo::load(file)?;
[INFO] [stdout]   |                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:26:62
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 | let sprite = pxo::Sprite::from(pxo, SpriteOptions::Default())?;
[INFO] [stdout]    |                                                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:29:63
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 13 | let sprite = pxo::Sprite::load(file, SpriteOptions::Default())?;
[INFO] [stdout]    |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:33:73
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 17 | let (packed, image) = pxo::PackedSprite::pack_sprite(sprite, 2048, 2048)?;
[INFO] [stdout]    |                                                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:36:63
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 20 | sprite_a = pxo::Sprite::load(file_a, SpriteOptions::Default())?;
[INFO] [stdout]    |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:37:63
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 21 | sprite_b = pxo::Sprite::load(file_b, SpriteOptions::Default())?;
[INFO] [stdout]    |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:39:89
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_19_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 23 | let (packed, image) = pxo::PackedSprite::pack_sprites(&[sprite_a, sprite_b], 2048, 2048)?;
[INFO] [stdout]    |                                                                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, PxoError>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 19)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "838fe7da7555b71961459ac29cc579da21fa7e87820b1fbabd962e5f66fab0f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "838fe7da7555b71961459ac29cc579da21fa7e87820b1fbabd962e5f66fab0f4", kill_on_drop: false }`
[INFO] [stdout] 838fe7da7555b71961459ac29cc579da21fa7e87820b1fbabd962e5f66fab0f4
