[INFO] fetching crate lcode 0.10.0...
[INFO] testing lcode-0.10.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate lcode 0.10.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate lcode 0.10.0
[INFO] finished tweaking crates.io crate lcode 0.10.0
[INFO] tweaked toml for crates.io crate lcode 0.10.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lcode 0.10.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lcode 0.10.0 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78c4f6bb45526c190af57cd8f01719dc1715129b148ad03fb6403d3fa4aafb99
[INFO] running `Command { std: "docker" "start" "-a" "78c4f6bb45526c190af57cd8f01719dc1715129b148ad03fb6403d3fa4aafb99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78c4f6bb45526c190af57cd8f01719dc1715129b148ad03fb6403d3fa4aafb99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78c4f6bb45526c190af57cd8f01719dc1715129b148ad03fb6403d3fa4aafb99", kill_on_drop: false }`
[INFO] [stdout] 78c4f6bb45526c190af57cd8f01719dc1715129b148ad03fb6403d3fa4aafb99
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e71b96a73378c483d568386c179919ec6d5b03e53a503f1caee6cb3c14c9b9d3
[INFO] running `Command { std: "docker" "start" "-a" "e71b96a73378c483d568386c179919ec6d5b03e53a503f1caee6cb3c14c9b9d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling once_cell v1.20.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling foldhash v0.1.4
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling cc v1.2.15
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling winnow v0.7.3
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling rustls v0.23.23
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling webpki-roots v0.26.8
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling time-macros v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling crc v3.2.1
[INFO] [stderr]    Compiling hashlink v0.10.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling block-padding v0.3.3
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling unicode-width v0.2.0
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling alloc-stdlib v0.2.2
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling cookie v0.18.1
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.96
[INFO] [stderr]    Compiling ring v0.17.10
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]    Compiling endi v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.139
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling toml_edit v0.22.24
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling markup5ever v0.14.1
[INFO] [stderr]    Compiling time v0.3.37
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling brotli-decompressor v4.0.2
[INFO] [stderr]    Compiling ordered-float v3.9.2
[INFO] [stderr]    Compiling event-listener-strategy v0.5.3
[INFO] [stderr]    Compiling castaway v0.2.3
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]    Compiling owo-colors v4.1.0
[INFO] [stderr]    Compiling built v0.7.7
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling aligned-vec v0.5.0
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling proc-macro-crate v3.2.0
[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-2025-09-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.98/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=df77df132a360dd2 -C extra-filename=-ce66f23426483958 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-afb286afc3aedca7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-bc2ea428be4cc0e7.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-d3b6c537b11caace.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" "e71b96a73378c483d568386c179919ec6d5b03e53a503f1caee6cb3c14c9b9d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71b96a73378c483d568386c179919ec6d5b03e53a503f1caee6cb3c14c9b9d3", kill_on_drop: false }`
[INFO] [stdout] e71b96a73378c483d568386c179919ec6d5b03e53a503f1caee6cb3c14c9b9d3