[INFO] fetching crate rhombus 0.2.21...
[INFO] testing rhombus-0.2.21 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rhombus 0.2.21 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rhombus 0.2.21
[INFO] finished tweaking crates.io crate rhombus 0.2.21
[INFO] tweaked toml for crates.io crate rhombus 0.2.21 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rhombus 0.2.21 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 711 packages to latest compatible versions
[INFO] [stderr]       Adding async-hash v0.5.4 (available: v0.6.0)
[INFO] [stderr]       Adding async-imap v0.10.4 (available: v0.11.2)
[INFO] [stderr]       Adding axum v0.7.9 (available: v0.8.9)
[INFO] [stderr]       Adding axum-extra v0.9.6 (available: v0.12.6)
[INFO] [stderr]       Adding chumsky v1.0.0-alpha.7 (available: v1.0.0-alpha.8)
[INFO] [stderr]       Adding config v0.14.1 (available: v0.15.22)
[INFO] [stderr]       Adding fancy-regex v0.13.0 (available: v0.18.0)
[INFO] [stderr]       Adding fluent v0.16.1 (available: v0.17.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding jsonwebtoken v9.3.1 (available: v10.3.0)
[INFO] [stderr]       Adding libsql v0.5.0 (available: v0.9.30)
[INFO] [stderr]       Adding mail-parser v0.9.4 (available: v0.11.2)
[INFO] [stderr]       Adding minify-html-onepass v0.15.0 (available: v0.18.1)
[INFO] [stderr]       Adding petname v2.0.2 (available: v3.0.0)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding reqwest v0.12.28 (available: v0.13.2)
[INFO] [stderr]       Adding resvg v0.43.0 (available: v0.47.0)
[INFO] [stderr]       Adding rust-s3 v0.35.1 (available: v0.37.1)
[INFO] [stderr]       Adding testcontainers v0.22.0 (available: v0.27.3)
[INFO] [stderr]       Adding testcontainers-modules v0.10.0 (available: v0.15.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] [stderr]       Adding tower-http v0.5.2 (available: v0.6.8)
[INFO] [stderr]       Adding tower-livereload v0.9.6 (available: v0.10.3)
[INFO] [stderr]       Adding tower_governor v0.4.3 (available: v0.8.0)
[INFO] [stderr]       Adding webpki-roots v0.26.11 (available: v1.0.7)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9b41660725f95b9c158ff323843d842c3b81878e5ff0b7425a5cf8002ea3b3a
[INFO] running `Command { std: "docker" "start" "-a" "c9b41660725f95b9c158ff323843d842c3b81878e5ff0b7425a5cf8002ea3b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9b41660725f95b9c158ff323843d842c3b81878e5ff0b7425a5cf8002ea3b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b41660725f95b9c158ff323843d842c3b81878e5ff0b7425a5cf8002ea3b3a", kill_on_drop: false }`
[INFO] [stdout] c9b41660725f95b9c158ff323843d842c3b81878e5ff0b7425a5cf8002ea3b3a
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e254c48767394304d3ff0c12907f0ed38e46061765a9d2e60212ff6b16e4c96
[INFO] running `Command { std: "docker" "start" "-a" "1e254c48767394304d3ff0c12907f0ed38e46061765a9d2e60212ff6b16e4c96", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling rustls-pki-types v1.14.1
[INFO] [stderr]    Compiling hashbrown v0.17.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling siphasher v1.0.2
[INFO] [stderr]    Compiling uncased v0.9.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling cc v1.2.61
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling webpki-roots v1.0.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling simd-adler32 v0.3.9
[INFO] [stderr]    Compiling rustls v0.23.39
[INFO] [stderr]    Compiling webpki-roots v0.26.11
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling data-encoding v2.11.0
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling rustc-hash v2.1.2
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling matchit v0.7.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling dlv-list v0.5.2
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling hashlink v0.8.4
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling block-padding v0.3.3
[INFO] [stderr]    Compiling dtoa v1.0.11
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling alloc-stdlib v0.2.2
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]    Compiling deranged v0.5.8
[INFO] [stderr]    Compiling rustls-native-certs v0.7.3
[INFO] [stderr]    Compiling ordered-multimap v0.7.3
[INFO] [stderr]    Compiling core_maths v0.1.1
[INFO] [stderr]    Compiling multer v3.1.0
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling slotmap v1.1.1
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling outref v0.1.0
[INFO] [stderr]    Compiling rkyv v0.7.46
[INFO] [stderr]    Compiling no-std-net v0.6.0
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling pnet_base v0.34.0
[INFO] [stderr]    Compiling simd-abstraction v0.7.1
[INFO] [stderr]    Compiling strict-num v0.1.1
[INFO] [stderr]    Compiling convert_case v0.6.0
[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-2.0.117/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=f4c02948d5809259 -C extra-filename=-aeba75ddfd93a6bc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-af63080cb3c4e46a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-866706526c1a0fdf.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-499e208ff65c691c.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" "1e254c48767394304d3ff0c12907f0ed38e46061765a9d2e60212ff6b16e4c96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e254c48767394304d3ff0c12907f0ed38e46061765a9d2e60212ff6b16e4c96", kill_on_drop: false }`
[INFO] [stdout] 1e254c48767394304d3ff0c12907f0ed38e46061765a9d2e60212ff6b16e4c96
