[INFO] cloning repository https://github.com/hgzimmerman/Perceptron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hgzimmerman/Perceptron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgzimmerman%2FPerceptron", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgzimmerman%2FPerceptron'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cabefb0dd7af800f2f7bcaacccae6a06aaf1dd14
[INFO] testing hgzimmerman/Perceptron against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhgzimmerman%2FPerceptron" "/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/hgzimmerman/Perceptron
[INFO] finished tweaking git repo https://github.com/hgzimmerman/Perceptron
[INFO] tweaked toml for git repo https://github.com/hgzimmerman/Perceptron written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hgzimmerman/Perceptron on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hgzimmerman/Perceptron 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-2026-04-21" "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] 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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2779ee8cf91eb590b408ede97f3995b84fd4c13631cf25d6bd6327f81c9f738
[INFO] running `Command { std: "docker" "start" "-a" "e2779ee8cf91eb590b408ede97f3995b84fd4c13631cf25d6bd6327f81c9f738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2779ee8cf91eb590b408ede97f3995b84fd4c13631cf25d6bd6327f81c9f738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2779ee8cf91eb590b408ede97f3995b84fd4c13631cf25d6bd6327f81c9f738", kill_on_drop: false }`
[INFO] [stdout] e2779ee8cf91eb590b408ede97f3995b84fd4c13631cf25d6bd6327f81c9f738
[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=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-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a66c5c9c73e7a6052a2465d4d0310bded7a7bc01f5a9e1dfabf4d5a77e019b2d
[INFO] running `Command { std: "docker" "start" "-a" "a66c5c9c73e7a6052a2465d4d0310bded7a7bc01f5a9e1dfabf4d5a77e019b2d", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling perceptron-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/lib.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]    --> src/lib.rs:138:1
[INFO] [stdout]     |
[INFO] [stdout] 138 | mod tests {
[INFO] [stdout]     | ^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Boolean::*`
[INFO] [stdout]    --> src/lib.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |     use Boolean::*;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]    --> src/lib.rs:138:1
[INFO] [stdout]     |
[INFO] [stdout] 138 | mod tests {
[INFO] [stdout]     | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]    --> src/lib.rs:252:13
[INFO] [stdout]     |
[INFO] [stdout] 252 |         use test::Bencher;
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/lib.rs:253:13
[INFO] [stdout]     |
[INFO] [stdout] 253 |         use super::*;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perceptron-test` (lib) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a66c5c9c73e7a6052a2465d4d0310bded7a7bc01f5a9e1dfabf4d5a77e019b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a66c5c9c73e7a6052a2465d4d0310bded7a7bc01f5a9e1dfabf4d5a77e019b2d", kill_on_drop: false }`
[INFO] [stdout] a66c5c9c73e7a6052a2465d4d0310bded7a7bc01f5a9e1dfabf4d5a77e019b2d
