[INFO] fetching crate silverfish 0.3.0...
[INFO] testing silverfish-0.3.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate silverfish 0.3.0 into /workspace/builds/worker-4-tc1/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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate silverfish 0.3.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simdnbt-derive v0.8.0
[INFO] [stderr]   Downloaded lz4-java-wrc v0.2.0
[INFO] [stderr]   Downloaded twox-hash v1.6.3
[INFO] [stderr]   Downloaded criterion-plot v0.4.5
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded lz4_flex v0.11.5
[INFO] [stderr]   Downloaded dashmap v6.1.0
[INFO] [stderr]   Downloaded csv-core v0.1.12
[INFO] [stderr]   Downloaded simdnbt v0.8.0
[INFO] [stderr]   Downloaded criterion v0.3.6
[INFO] [stderr]   Downloaded simd_cesu8 v1.1.0
[INFO] [stderr]   Downloaded clap v2.34.0
[INFO] [stderr]   Downloaded csv v1.3.1
[INFO] [stderr]   Downloaded mca v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d
[INFO] running `Command { std: "docker" "start" "ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[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 hashbrown v0.14.5
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling simd_cesu8 v1.1.0
[INFO] [stderr]    Compiling lz4-java-wrc v0.2.0
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling simdnbt-derive v0.8.0
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simdnbt` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d", kill_on_drop: false }`
[INFO] [stdout] ca5d358c805876e38c788a6f8f0508b772e070a8e6ee79b90ca7ec02767df43d
