[INFO] fetching crate cv 0.6.0...
[INFO] testing cv-0.6.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate cv 0.6.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate cv 0.6.0
[INFO] finished tweaking crates.io crate cv 0.6.0
[INFO] tweaked toml for crates.io crate cv 0.6.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cv 0.6.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 69 packages to latest compatible versions
[INFO] [stderr]       Adding arrsac v0.5.0 (available: v0.11.0)
[INFO] [stderr]       Adding bitarray v0.2.6 (available: v0.10.0)
[INFO] [stderr]       Adding hnsw v0.6.1 (available: v0.11.0)
[INFO] [stderr]       Adding levenberg-marquardt v0.5.2 (available: v0.15.0)
[INFO] [stderr]       Adding space v0.10.3 (available: v0.19.0)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d570a4471a8d01ca813b76c627457790792c42a4b28b34735e6ffba6e5105e75
[INFO] running `Command { std: "docker" "start" "-a" "d570a4471a8d01ca813b76c627457790792c42a4b28b34735e6ffba6e5105e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d570a4471a8d01ca813b76c627457790792c42a4b28b34735e6ffba6e5105e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d570a4471a8d01ca813b76c627457790792c42a4b28b34735e6ffba6e5105e75", kill_on_drop: false }`
[INFO] [stdout] d570a4471a8d01ca813b76c627457790792c42a4b28b34735e6ffba6e5105e75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3a40b161a435823e24510bdf66430f89ae0a9125f8ea1ddd010f15688e6dd53d
[INFO] running `Command { std: "docker" "start" "-a" "3a40b161a435823e24510bdf66430f89ae0a9125f8ea1ddd010f15688e6dd53d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling sample-consensus v1.0.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling primal-bit v0.3.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling space v0.10.3
[INFO] [stderr]    Compiling bytemuck v1.23.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling primal-estimate v0.3.3
[INFO] [stderr]    Compiling levenberg-marquardt v0.5.2
[INFO] [stderr]    Compiling primal-sieve v0.3.7
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling bitarray v0.2.6
[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/bitarray-0.2.6/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(min_const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `min_const_generics` has been stable since `1.51.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitarray` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3a40b161a435823e24510bdf66430f89ae0a9125f8ea1ddd010f15688e6dd53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a40b161a435823e24510bdf66430f89ae0a9125f8ea1ddd010f15688e6dd53d", kill_on_drop: false }`
[INFO] [stdout] 3a40b161a435823e24510bdf66430f89ae0a9125f8ea1ddd010f15688e6dd53d