[INFO] fetching crate silverfish 0.3.0...
[INFO] testing silverfish-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate silverfish 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate silverfish 0.3.0
[INFO] finished tweaking crates.io crate silverfish 0.3.0
[INFO] tweaked toml for crates.io crate silverfish 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate silverfish 0.3.0 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 silverfish 0.3.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4888b88b1633bda0f7d71ae1d57df093bcaeb0ffa36df6911cda052e4bfad35f
[INFO] running `Command { std: "docker" "start" "-a" "4888b88b1633bda0f7d71ae1d57df093bcaeb0ffa36df6911cda052e4bfad35f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4888b88b1633bda0f7d71ae1d57df093bcaeb0ffa36df6911cda052e4bfad35f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4888b88b1633bda0f7d71ae1d57df093bcaeb0ffa36df6911cda052e4bfad35f", kill_on_drop: false }`
[INFO] [stdout] 4888b88b1633bda0f7d71ae1d57df093bcaeb0ffa36df6911cda052e4bfad35f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d2aea8a99893f1690b46f212e4f4b3765b8afa5a02da6340fda95cf81cf44a22
[INFO] running `Command { std: "docker" "start" "-a" "d2aea8a99893f1690b46f212e4f4b3765b8afa5a02da6340fda95cf81cf44a22", kill_on_drop: false }`
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling simd_cesu8 v1.1.0
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling lz4_flex v0.11.5
[INFO] [stderr]    Compiling lz4-java-wrc v0.2.0
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling simdnbt-derive v0.8.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling mca v1.1.0
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling simdnbt v0.8.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/simdnbt-0.8.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(portable_simd)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/simdnbt-0.8.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(allocator_api)]
[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 `simdnbt` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d2aea8a99893f1690b46f212e4f4b3765b8afa5a02da6340fda95cf81cf44a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2aea8a99893f1690b46f212e4f4b3765b8afa5a02da6340fda95cf81cf44a22", kill_on_drop: false }`
[INFO] [stdout] d2aea8a99893f1690b46f212e4f4b3765b8afa5a02da6340fda95cf81cf44a22