[INFO] fetching crate rs-utcp 0.3.2...
[INFO] testing rs-utcp-0.3.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rs-utcp 0.3.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rs-utcp 0.3.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rs-utcp 0.3.2
[INFO] tweaked toml for crates.io crate rs-utcp 0.3.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rs-utcp 0.3.2 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 rs-utcp 0.3.2 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e8a25ff8d6021961cb9da2d0d62739b136340beb96ce4dacd80081a00498ccef
[INFO] running `Command { std: "docker" "start" "-a" "e8a25ff8d6021961cb9da2d0d62739b136340beb96ce4dacd80081a00498ccef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8a25ff8d6021961cb9da2d0d62739b136340beb96ce4dacd80081a00498ccef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8a25ff8d6021961cb9da2d0d62739b136340beb96ce4dacd80081a00498ccef", kill_on_drop: false }`
[INFO] [stdout] e8a25ff8d6021961cb9da2d0d62739b136340beb96ce4dacd80081a00498ccef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 67033416e57dda11e874873d4654623d9b43b56e3b0a943455caefcdfc6706e7
[INFO] running `Command { std: "docker" "start" "-a" "67033416e57dda11e874873d4654623d9b43b56e3b0a943455caefcdfc6706e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling portable-atomic v1.13.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling zerocopy v0.8.40
[INFO] [stderr]    Compiling const-oid v0.9.6
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling ipnet v2.12.0
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling base64ct v1.8.3
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling num-conv v0.2.0
[INFO] [stderr]    Compiling time-core v0.1.8
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling base16ct v0.2.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling deranged v0.5.8
[INFO] [stderr]    Compiling pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling crc v3.4.0
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling oid-registry v0.7.1
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling data-encoding v2.10.0
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling alloc-stdlib v0.2.2
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling native-tls v0.2.18
[INFO] [stderr]    Compiling brotli-decompressor v5.0.0
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling substring v1.4.5
[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling time v0.3.47
[INFO] [stderr]    Compiling rustls v0.23.37
[INFO] [stderr]    Compiling waitgroup v0.1.2
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling pem v3.0.6
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]    Compiling brotli v8.0.2
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling rusticata-macros v4.1.0
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling http v1.4.0
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling unicase v2.9.0
[INFO] [stderr]    Compiling eventsource-stream v0.2.3
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling socket2 v0.6.2
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling ff v0.13.1
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling tempfile v3.26.0
[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=f50fd23ee619c33a -C extra-filename=-db35dfc171bce774 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0fa97b1aa44f5fda.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-544fd508281ca8af.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-423507c85e36a25a.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" "67033416e57dda11e874873d4654623d9b43b56e3b0a943455caefcdfc6706e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67033416e57dda11e874873d4654623d9b43b56e3b0a943455caefcdfc6706e7", kill_on_drop: false }`
[INFO] [stdout] 67033416e57dda11e874873d4654623d9b43b56e3b0a943455caefcdfc6706e7
