[INFO] fetching crate private-gemm-x86 0.1.18...
[INFO] testing private-gemm-x86-0.1.18 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate private-gemm-x86 0.1.18 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate private-gemm-x86 0.1.18
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate private-gemm-x86 0.1.18
[INFO] tweaked toml for crates.io crate private-gemm-x86 0.1.18 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate private-gemm-x86 0.1.18 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate private-gemm-x86 0.1.18 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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52008b35650c938fa1d8c5dd43776d3d0968210c986cd84839c84210436bd8a0
[INFO] running `Command { std: "docker" "start" "-a" "52008b35650c938fa1d8c5dd43776d3d0968210c986cd84839c84210436bd8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52008b35650c938fa1d8c5dd43776d3d0968210c986cd84839c84210436bd8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52008b35650c938fa1d8c5dd43776d3d0968210c986cd84839c84210436bd8a0", kill_on_drop: false }`
[INFO] [stdout] 52008b35650c938fa1d8c5dd43776d3d0968210c986cd84839c84210436bd8a0
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ee05e1b5101d3a6d1803dc755bdbf411fa61fa1c05b7f04f63edd59562d28a9
[INFO] running `Command { std: "docker" "start" "-a" "3ee05e1b5101d3a6d1803dc755bdbf411fa61fa1c05b7f04f63edd59562d28a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling defer v0.2.1
[INFO] [stderr]    Compiling raw-cpuid v11.5.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling atomic-wait v1.1.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling interpol v0.2.1
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling private-gemm-x86 v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling equator v0.4.2
[INFO] [stderr]    Compiling spindle v0.2.2
[INFO] [stdout] warning: value assigned to `j` is never read
[INFO] [stdout]    --> src/lib.rs:410:3
[INFO] [stdout]     |
[INFO] [stdout] 410 |         j += 1;
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.49s
[INFO] running `Command { std: "docker" "inspect" "3ee05e1b5101d3a6d1803dc755bdbf411fa61fa1c05b7f04f63edd59562d28a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ee05e1b5101d3a6d1803dc755bdbf411fa61fa1c05b7f04f63edd59562d28a9", kill_on_drop: false }`
[INFO] [stdout] 3ee05e1b5101d3a6d1803dc755bdbf411fa61fa1c05b7f04f63edd59562d28a9
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3a0e5560afa509adab8c70990395e62dec8a95034cb7ae4dd7555c88e62afa0
[INFO] running `Command { std: "docker" "start" "-a" "b3a0e5560afa509adab8c70990395e62dec8a95034cb7ae4dd7555c88e62afa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libm v0.2.13
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling nano-gemm-codegen v0.1.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]    Compiling litemap v0.7.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling cc v1.2.20
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]    Compiling pulp v0.21.5
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling utf16_iter v1.0.5
[INFO] [stderr]    Compiling write16 v1.0.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling reborrow v0.5.5
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling utf8_iter v1.0.4
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.72
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling nano-gemm-core v0.1.0
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling rustls-native-certs v0.7.3
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling nano-gemm-f64 v0.1.0
[INFO] [stderr]    Compiling flate2 v1.1.1
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling nano-gemm-c32 v0.1.0
[INFO] [stderr]    Compiling nano-gemm-c64 v0.1.0
[INFO] [stderr]    Compiling nano-gemm-f32 v0.1.0
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling toml_write v0.1.1
[INFO] [stderr]    Compiling winnow v0.7.7
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling prettyplease v0.2.32
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling easy-cast v0.5.3
[INFO] [stderr]    Compiling openssl-sys v0.9.107
[INFO] [stderr]    Compiling openmp-sys v1.2.3
[INFO] [stderr]    Compiling clap_builder v4.5.37
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling generativity v1.1.0
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling dyn-clone v1.0.19
[INFO] [stderr]    Compiling lapack-sys v0.15.0
[INFO] [stderr]    Compiling xattr v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling tar v0.4.44
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling average v0.16.0
[INFO] [stderr]    Compiling blas-sys v0.8.0
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr] error: could not compile `nano-gemm-f32` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2025-10-28-x86_64-unknown-linux-gnu/bin/rustc --crate-name nano_gemm_f32 --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nano-gemm-f32-0.1.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="nightly"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "nightly"))' -C metadata=d8e71d6a10201a9b -C extra-filename=-935d7753984ef1c3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern nano_gemm_core=/opt/rustwide/target/debug/deps/libnano_gemm_core-1215b675154a95fb.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/nano-gemm-f64-0.1.0/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     feature(stdarch_x86_avx512, avx512_target_feature)
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `avx512_target_feature` has been stable since `1.89.0` 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 `nano-gemm-f64` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b3a0e5560afa509adab8c70990395e62dec8a95034cb7ae4dd7555c88e62afa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a0e5560afa509adab8c70990395e62dec8a95034cb7ae4dd7555c88e62afa0", kill_on_drop: false }`
[INFO] [stdout] b3a0e5560afa509adab8c70990395e62dec8a95034cb7ae4dd7555c88e62afa0
