[INFO] fetching crate gene-evo 3.1.0...
[INFO] testing gene-evo-3.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate gene-evo 3.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate gene-evo 3.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate gene-evo 3.1.0
[INFO] tweaked toml for crates.io crate gene-evo 3.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gene-evo 3.1.0 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 gene-evo 3.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 74f4da1b01a5f0e1f24a2fb496d89a39aa3a7ec504911fc57a67d1801cf350c0
[INFO] running `Command { std: "docker" "start" "-a" "74f4da1b01a5f0e1f24a2fb496d89a39aa3a7ec504911fc57a67d1801cf350c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74f4da1b01a5f0e1f24a2fb496d89a39aa3a7ec504911fc57a67d1801cf350c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74f4da1b01a5f0e1f24a2fb496d89a39aa3a7ec504911fc57a67d1801cf350c0", kill_on_drop: false }`
[INFO] [stdout] 74f4da1b01a5f0e1f24a2fb496d89a39aa3a7ec504911fc57a67d1801cf350c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2500d1fc475742bc70f25ecb3fa8cbfadac8997720e8749328f133616d32b6c4
[INFO] running `Command { std: "docker" "start" "-a" "2500d1fc475742bc70f25ecb3fa8cbfadac8997720e8749328f133616d32b6c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling gene-evo v3.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::random::Random`
[INFO] [stdout]  --> src/lib.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |     random::{Random, RandomSource},
[INFO] [stdout]   |              ^^^^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              no `Random` in `random`
[INFO] [stdout]   |              help: a similar name exists in the module: `random`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(random)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(mpmc_channel)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `random` found for type `u32` in the current scope
[INFO] [stdout]    --> src/lib.rs:123:10
[INFO] [stdout]     |
[INFO] [stdout] 123 |     u32::random(rng) as f32 / u32::MAX as f32
[INFO] [stdout]     |          ^^^^^^ function or associated item not found in `u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gene-evo` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "2500d1fc475742bc70f25ecb3fa8cbfadac8997720e8749328f133616d32b6c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2500d1fc475742bc70f25ecb3fa8cbfadac8997720e8749328f133616d32b6c4", kill_on_drop: false }`
[INFO] [stdout] 2500d1fc475742bc70f25ecb3fa8cbfadac8997720e8749328f133616d32b6c4