[INFO] cloning repository https://github.com/nbvdkamp/rgb2spec-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nbvdkamp/rgb2spec-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbvdkamp%2Frgb2spec-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbvdkamp%2Frgb2spec-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f11c9c9cacb8509deee8b389db176b45fcb92a4
[INFO] testing nbvdkamp/rgb2spec-rs against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbvdkamp%2Frgb2spec-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nbvdkamp/rgb2spec-rs
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/nbvdkamp/rgb2spec-rs
[INFO] tweaked toml for git repo https://github.com/nbvdkamp/rgb2spec-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nbvdkamp/rgb2spec-rs on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nbvdkamp/rgb2spec-rs 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fc0f81162e17dea77e327a3e6199d92825400db62f5e4c7636db8f3093f858c
[INFO] running `Command { std: "docker" "start" "-a" "2fc0f81162e17dea77e327a3e6199d92825400db62f5e4c7636db8f3093f858c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fc0f81162e17dea77e327a3e6199d92825400db62f5e4c7636db8f3093f858c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc0f81162e17dea77e327a3e6199d92825400db62f5e4c7636db8f3093f858c", kill_on_drop: false }`
[INFO] [stdout] 2fc0f81162e17dea77e327a3e6199d92825400db62f5e4c7636db8f3093f858c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3da45ea05b4d38587bf8a1872b24e3ae83470743c70311d5e907119fdcd8d2f
[INFO] running `Command { std: "docker" "start" "-a" "c3da45ea05b4d38587bf8a1872b24e3ae83470743c70311d5e907119fdcd8d2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgb2spec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "c3da45ea05b4d38587bf8a1872b24e3ae83470743c70311d5e907119fdcd8d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3da45ea05b4d38587bf8a1872b24e3ae83470743c70311d5e907119fdcd8d2f", kill_on_drop: false }`
[INFO] [stdout] c3da45ea05b4d38587bf8a1872b24e3ae83470743c70311d5e907119fdcd8d2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c6952e97c82274817dd5c3555469f3c8eb832d772bccba7484194acd9531283
[INFO] running `Command { std: "docker" "start" "-a" "6c6952e97c82274817dd5c3555469f3c8eb832d772bccba7484194acd9531283", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgb2spec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "6c6952e97c82274817dd5c3555469f3c8eb832d772bccba7484194acd9531283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c6952e97c82274817dd5c3555469f3c8eb832d772bccba7484194acd9531283", kill_on_drop: false }`
[INFO] [stdout] 6c6952e97c82274817dd5c3555469f3c8eb832d772bccba7484194acd9531283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9084c743130c26b61f351e228c99638a4b0a5bb7fda452e4061894fee7950111
[INFO] running `Command { std: "docker" "start" "-a" "9084c743130c26b61f351e228c99638a4b0a5bb7fda452e4061894fee7950111", kill_on_drop: false }`
[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]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[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-49463f0dae0308af)
[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] 13 | 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] 17 | 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] 13 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_rgb2spec_rs_12_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 14 | use rgb2spec::{self, RGB2Spec};
[INFO] [stdout] ...
[INFO] [stdout] 21 | let reflectance = rgb2spec::eval_precise(coefficients, wavelength);
[INFO] [stdout] 22 +     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" "9084c743130c26b61f351e228c99638a4b0a5bb7fda452e4061894fee7950111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9084c743130c26b61f351e228c99638a4b0a5bb7fda452e4061894fee7950111", kill_on_drop: false }`
[INFO] [stdout] 9084c743130c26b61f351e228c99638a4b0a5bb7fda452e4061894fee7950111
