[INFO] fetching crate signalrs 0.2.0...
[INFO] testing signalrs-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate signalrs 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate signalrs 0.2.0
[INFO] finished tweaking crates.io crate signalrs 0.2.0
[INFO] tweaked toml for crates.io crate signalrs 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate signalrs 0.2.0 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 474 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding ta v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding tauri v1.8.3 (available: v2.10.3)
[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-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] aad3255c4e71b786c438d41722c758dea10db7f6b4e2ddf4a608a69ee6c7439c
[INFO] running `Command { std: "docker" "start" "-a" "aad3255c4e71b786c438d41722c758dea10db7f6b4e2ddf4a608a69ee6c7439c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aad3255c4e71b786c438d41722c758dea10db7f6b4e2ddf4a608a69ee6c7439c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aad3255c4e71b786c438d41722c758dea10db7f6b4e2ddf4a608a69ee6c7439c", kill_on_drop: false }`
[INFO] [stdout] aad3255c4e71b786c438d41722c758dea10db7f6b4e2ddf4a608a69ee6c7439c
[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] f4df9ca955b4be00f153fa4fd2ec46fdb67950623379694a163db4d90e98df31
[INFO] running `Command { std: "docker" "start" "-a" "f4df9ca955b4be00f153fa4fd2ec46fdb67950623379694a163db4d90e98df31", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling winnow v0.7.15
[INFO] [stderr]    Compiling version-compare v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling siphasher v1.0.2
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling cfg-expr v0.9.1
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling simd-adler32 v0.3.9
[INFO] [stderr]    Compiling dtoa v1.0.11
[INFO] [stderr]    Compiling gio v0.15.12
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling uuid v1.23.1
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling cfg-expr v0.15.8
[INFO] [stderr]    Compiling alloc-stdlib v0.2.2
[INFO] [stderr]    Compiling field-offset v0.3.6
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling brotli-decompressor v4.0.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling cfb v0.7.3
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling gtk v0.15.5
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]    Compiling typenum v1.20.0
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling dunce v1.0.5
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling infer v0.13.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling brotli v7.0.0
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]    Compiling tao v0.16.11
[INFO] [stderr]    Compiling raw-window-handle v0.5.2
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling wry v0.24.12
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling cpufeatures v0.2.17
[INFO] [stderr]    Compiling tauri-runtime v0.14.6
[INFO] [stderr]    Compiling ico v0.4.0
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling http-range v0.1.5
[INFO] [stderr]    Compiling tauri-runtime-wry v0.14.11
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling tauri v1.8.3
[INFO] [stderr]    Compiling filetime v0.2.27
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling xattr v1.6.1
[INFO] [stderr]    Compiling rust_decimal v1.41.0
[INFO] [stderr]    Compiling tar v0.4.45
[INFO] [stderr]    Compiling anstream v1.0.0
[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=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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="quote"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=d78df0ae54512b18 -C extra-filename=-f1e92c2508bc8886 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-47859ff3f54a1fbd.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7ef5d6d5c0d9e8ab.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-423507c85e36a25a.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f4df9ca955b4be00f153fa4fd2ec46fdb67950623379694a163db4d90e98df31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4df9ca955b4be00f153fa4fd2ec46fdb67950623379694a163db4d90e98df31", kill_on_drop: false }`
[INFO] [stdout] f4df9ca955b4be00f153fa4fd2ec46fdb67950623379694a163db4d90e98df31
