[INFO] fetching crate rgb2spec 0.1.1...
[INFO] testing rgb2spec-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rgb2spec 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rgb2spec 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rgb2spec 0.1.1
[INFO] tweaked toml for crates.io crate rgb2spec 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rgb2spec 0.1.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rgb2spec 0.1.1 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2df4cd5eaf2c786d58ce6c411ac01b7695949aa4534fe67494cecda8856ba296
[INFO] running `Command { std: "docker" "start" "-a" "2df4cd5eaf2c786d58ce6c411ac01b7695949aa4534fe67494cecda8856ba296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2df4cd5eaf2c786d58ce6c411ac01b7695949aa4534fe67494cecda8856ba296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df4cd5eaf2c786d58ce6c411ac01b7695949aa4534fe67494cecda8856ba296", kill_on_drop: false }`
[INFO] [stdout] 2df4cd5eaf2c786d58ce6c411ac01b7695949aa4534fe67494cecda8856ba296
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04d5115c6a0811c5526f3f655a60216a2ce7959037fdd3d63416045b884429b5
[INFO] running `Command { std: "docker" "start" "-a" "04d5115c6a0811c5526f3f655a60216a2ce7959037fdd3d63416045b884429b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgb2spec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "04d5115c6a0811c5526f3f655a60216a2ce7959037fdd3d63416045b884429b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d5115c6a0811c5526f3f655a60216a2ce7959037fdd3d63416045b884429b5", kill_on_drop: false }`
[INFO] [stdout] 04d5115c6a0811c5526f3f655a60216a2ce7959037fdd3d63416045b884429b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a23372c08603809b705f67165b266a05ec13956d5c96cb321584840f0674b28e
[INFO] running `Command { std: "docker" "start" "-a" "a23372c08603809b705f67165b266a05ec13956d5c96cb321584840f0674b28e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgb2spec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "a23372c08603809b705f67165b266a05ec13956d5c96cb321584840f0674b28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a23372c08603809b705f67165b266a05ec13956d5c96cb321584840f0674b28e", kill_on_drop: false }`
[INFO] [stdout] a23372c08603809b705f67165b266a05ec13956d5c96cb321584840f0674b28e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21dab84676784a752a432c8174528f94fe19183db378593cc42e2cc71225f342
[INFO] running `Command { std: "docker" "start" "-a" "21dab84676784a752a432c8174528f94fe19183db378593cc42e2cc71225f342", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/rgb2spec.rs (/opt/rustwide/target/debug/deps/rgb2spec-625b0926b653b2d7)
[INFO] [stderr]      Running unittests src/optimize-cli.rs (/opt/rustwide/target/debug/deps/optimize-c0b2bdd891605fb9)
[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] [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 rgb2spec
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/rgb2spec.rs - (line 12) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/rgb2spec.rs - (line 12) 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/rgb2spec.rs:17:51
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_rgb2spec_rs_12_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let rgb2spec = RGB2Spec::load("examples/out.spec")?;
[INFO] [stdout]   |                                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_rgb2spec_rs_12_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use rgb2spec::{self, RGB2Spec};
[INFO] [stdout] ...
[INFO] [stdout] 12| let reflectance = rgb2spec::eval_precise(coefficients, wavelength);
[INFO] [stdout] 13+     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/rgb2spec.rs - (line 12)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "21dab84676784a752a432c8174528f94fe19183db378593cc42e2cc71225f342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21dab84676784a752a432c8174528f94fe19183db378593cc42e2cc71225f342", kill_on_drop: false }`
[INFO] [stdout] 21dab84676784a752a432c8174528f94fe19183db378593cc42e2cc71225f342