[INFO] fetching crate ringkernel 0.4.2... [INFO] testing ringkernel-0.4.2 against beta-2026-04-21 for beta-1.96-1 [INFO] extracting crate ringkernel 0.4.2 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate ringkernel 0.4.2 [INFO] removed 0 missing examples [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate ringkernel 0.4.2 [INFO] tweaked toml for crates.io crate ringkernel 0.4.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ringkernel 0.4.2 on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate ringkernel 0.4.2 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 030f43dfbec77cfb6ca4ff353e20b49efd5b180fbee4b455708a2e5c1c922755 [INFO] running `Command { std: "docker" "start" "-a" "030f43dfbec77cfb6ca4ff353e20b49efd5b180fbee4b455708a2e5c1c922755", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "030f43dfbec77cfb6ca4ff353e20b49efd5b180fbee4b455708a2e5c1c922755", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "030f43dfbec77cfb6ca4ff353e20b49efd5b180fbee4b455708a2e5c1c922755", kill_on_drop: false }` [INFO] [stdout] 030f43dfbec77cfb6ca4ff353e20b49efd5b180fbee4b455708a2e5c1c922755 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 177c2ffa7b444543530f45cfffed37f68b1b38c15e0103876ad00457ad207eca [INFO] running `Command { std: "docker" "start" "-a" "177c2ffa7b444543530f45cfffed37f68b1b38c15e0103876ad00457ad207eca", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.103 [INFO] [stderr] Compiling unicode-ident v1.0.22 [INFO] [stderr] Compiling quote v1.0.42 [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling zerocopy v0.8.30 [INFO] [stderr] Compiling bytecheck v0.6.12 [INFO] [stderr] Compiling futures-sink v0.3.31 [INFO] [stderr] Compiling ahash v0.7.8 [INFO] [stderr] Compiling futures-core v0.3.31 [INFO] [stderr] Compiling rend v0.4.2 [INFO] [stderr] Compiling simdutf8 v0.1.5 [INFO] [stderr] Compiling futures-task v0.3.31 [INFO] [stderr] Compiling slab v0.4.11 [INFO] [stderr] Compiling ucd-trie v0.1.7 [INFO] [stderr] Compiling rkyv v0.7.45 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling thiserror v2.0.17 [INFO] [stderr] Compiling tracing-core v0.1.35 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling seahash v4.1.0 [INFO] [stderr] Compiling itoa v1.0.15 [INFO] [stderr] Compiling inventory v0.3.21 [INFO] [stderr] Compiling ryu v1.0.20 [INFO] [stderr] Compiling log v0.4.28 [INFO] [stderr] Compiling pest v2.8.4 [INFO] [stderr] Compiling syn v2.0.111 [INFO] [stderr] Compiling getrandom v0.3.4 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling mio v1.1.0 [INFO] [stderr] Compiling signal-hook-registry v1.4.7 [INFO] [stderr] Compiling socket2 v0.6.1 [INFO] [stderr] Compiling rand_core v0.9.3 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling pest_meta v2.8.4 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling rand_chacha v0.9.0 [INFO] [stderr] Compiling rand v0.9.2 [INFO] [stderr] Compiling uuid v1.18.1 [INFO] [stderr] Compiling ptr_meta_derive v0.1.4 [INFO] [stderr] Compiling bytecheck_derive v0.6.12 [INFO] [stderr] Compiling rkyv_derive v0.7.45 [INFO] [stderr] Compiling ptr_meta v0.1.4 [INFO] [stderr] Compiling darling_core v0.20.11 [INFO] [stderr] Compiling pest_generator v2.8.4 [INFO] [stderr] Compiling bytemuck_derive v1.10.2 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling thiserror-impl v2.0.17 [INFO] [stderr] Compiling tracing-attributes v0.1.31 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Compiling async-trait v0.1.89 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling pest_derive v2.8.4 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling tokio v1.48.0 [INFO] [stderr] Compiling zerocopy v0.7.35 [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling handlebars v5.1.2 [INFO] [stderr] Compiling bytemuck v1.24.0 [INFO] [stderr] Compiling atomic v0.6.1 [INFO] [stderr] Compiling safe_arch v0.7.4 [INFO] [stderr] Compiling wide v0.7.33 [INFO] [stderr] Compiling darling_macro v0.20.11 [INFO] [stderr] Compiling darling v0.20.11 [INFO] [stderr] Compiling ringkernel-derive v0.4.2 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling ringkernel-core v0.4.2 [INFO] [stderr] Compiling ringkernel-cpu v0.4.2 [INFO] [stderr] Compiling ringkernel-codegen v0.4.2 [INFO] [stderr] Compiling ringkernel v0.4.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.08s [INFO] running `Command { std: "docker" "inspect" "177c2ffa7b444543530f45cfffed37f68b1b38c15e0103876ad00457ad207eca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "177c2ffa7b444543530f45cfffed37f68b1b38c15e0103876ad00457ad207eca", kill_on_drop: false }` [INFO] [stdout] 177c2ffa7b444543530f45cfffed37f68b1b38c15e0103876ad00457ad207eca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 35f0e801acee0f6b2f2394b410697ae32612db2d742e29b19ec39aa4974f572d [INFO] running `Command { std: "docker" "start" "-a" "35f0e801acee0f6b2f2394b410697ae32612db2d742e29b19ec39aa4974f572d", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.111 [INFO] [stderr] Compiling log v0.4.28 [INFO] [stderr] Compiling zerocopy v0.8.30 [INFO] [stderr] Compiling tracing-core v0.1.35 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling http v1.4.0 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling hashbrown v0.16.1 [INFO] [stderr] Compiling bitflags v2.10.0 [INFO] [stderr] Compiling icu_properties_data v2.1.1 [INFO] [stderr] Compiling sync_wrapper v1.0.2 [INFO] [stderr] Compiling regex-syntax v0.8.8 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling anyhow v1.0.100 [INFO] [stderr] Compiling rustix v1.1.2 [INFO] [stderr] Compiling ahash v0.7.8 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling mio v1.1.0 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling rayon v1.11.0 [INFO] [stderr] Compiling clap_lex v0.7.6 [INFO] [stderr] Compiling plotters-backend v0.3.7 [INFO] [stderr] Compiling http-body v1.0.1 [INFO] [stderr] Compiling ciborium-io v0.2.2 [INFO] [stderr] Compiling rustix v0.38.44 [INFO] [stderr] Compiling clap_builder v4.5.53 [INFO] [stderr] Compiling http-body-util v0.1.3 [INFO] [stderr] Compiling indexmap v2.12.1 [INFO] [stderr] Compiling plotters-svg v0.3.7 [INFO] [stderr] Compiling signal-hook v0.3.18 [INFO] [stderr] Compiling serde_path_to_error v0.1.20 [INFO] [stderr] Compiling rkyv v0.7.45 [INFO] [stderr] Compiling wait-timeout v0.2.1 [INFO] [stderr] Compiling winnow v0.7.14 [INFO] [stderr] Compiling matchit v0.7.3 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling cast v0.3.0 [INFO] [stderr] Compiling iri-string v0.7.9 [INFO] [stderr] Compiling ringkernel-cuda v0.4.2 [INFO] [stderr] Compiling bit-vec v0.8.0 [INFO] [stderr] Compiling linux-raw-sys v0.4.15 [INFO] [stderr] Compiling toml_write v0.1.2 [INFO] [stderr] Compiling bit-set v0.8.0 [INFO] [stderr] Compiling criterion-plot v0.5.0 [INFO] [stderr] Compiling signal-hook-mio v0.2.5 [INFO] [stderr] Compiling plotters v0.3.7 [INFO] [stderr] Compiling tracing-log v0.2.0 [INFO] [stderr] Compiling rand_xorshift v0.4.0 [INFO] [stderr] Compiling tempfile v3.23.0 [INFO] [stderr] Compiling regex-automata v0.4.13 [INFO] [stderr] Compiling rusty-fork v0.3.1 [INFO] [stderr] Compiling socket2 v0.5.10 [INFO] [stderr] Compiling is-terminal v0.4.17 [INFO] [stderr] Compiling anes v0.1.6 [INFO] [stderr] Compiling clap v4.5.53 [INFO] [stderr] Compiling unarray v0.1.4 [INFO] [stderr] error: could not compile `syn` (lib) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.111/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=748159e36f627cee -C extra-filename=-39721cf06bb2fe31 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ccbb1fdb33db5541.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-919661d2661b02cb.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-996667735b8caf47.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "35f0e801acee0f6b2f2394b410697ae32612db2d742e29b19ec39aa4974f572d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35f0e801acee0f6b2f2394b410697ae32612db2d742e29b19ec39aa4974f572d", kill_on_drop: false }` [INFO] [stdout] 35f0e801acee0f6b2f2394b410697ae32612db2d742e29b19ec39aa4974f572d