[INFO] fetching crate boa_engine 0.20.0...
[INFO] building boa_engine-0.20.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate boa_engine 0.20.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate boa_engine 0.20.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate boa_engine 0.20.0
[INFO] tweaked toml for crates.io crate boa_engine 0.20.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate boa_engine 0.20.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 235 packages to latest compatible versions
[INFO] [stderr]       Adding calendrical_calculations v0.1.2 (available: v0.1.3)
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.7.0)
[INFO] [stderr]       Adding fixed_decimal v0.5.6 (available: v0.7.0)
[INFO] [stderr]       Adding hashbrown v0.15.5 (available: v0.16.0)
[INFO] [stderr]       Adding icu_calendar v1.5.2 (available: v2.0.5)
[INFO] [stderr]       Adding icu_casemap v1.5.1 (available: v2.0.0)
[INFO] [stderr]       Adding icu_collator v1.5.0 (available: v2.0.0)
[INFO] [stderr]       Adding icu_datetime v1.5.1 (available: v2.0.0)
[INFO] [stderr]       Adding icu_decimal v1.5.0 (available: v2.0.0)
[INFO] [stderr]       Adding icu_list v1.5.0 (available: v2.0.0)
[INFO] [stderr]       Adding icu_normalizer v1.5.0 (available: v2.0.0)
[INFO] [stderr]       Adding icu_plurals v1.5.0 (available: v2.0.0)
[INFO] [stderr]       Adding icu_provider v1.5.0 (available: v2.0.0)
[INFO] [stderr]       Adding icu_segmenter v1.5.0 (available: v2.0.0)
[INFO] [stderr]       Adding itertools v0.13.0 (available: v0.14.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding temporal_rs v0.0.4 (available: v0.1.0)
[INFO] [stderr]       Adding tinystr v0.7.6 (available: v0.8.1)
[INFO] [stderr]       Adding writeable v0.5.5 (available: v0.6.1)
[INFO] [stderr]       Adding yoke v0.7.5 (available: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cce2eaa9749fe871e96fc26bcb396ce2a37bf65cc9466d9ce6c496cda9e24e85
[INFO] running `Command { std: "docker" "start" "-a" "cce2eaa9749fe871e96fc26bcb396ce2a37bf65cc9466d9ce6c496cda9e24e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cce2eaa9749fe871e96fc26bcb396ce2a37bf65cc9466d9ce6c496cda9e24e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cce2eaa9749fe871e96fc26bcb396ce2a37bf65cc9466d9ce6c496cda9e24e85", kill_on_drop: false }`
[INFO] [stdout] cce2eaa9749fe871e96fc26bcb396ce2a37bf65cc9466d9ce6c496cda9e24e85
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7290753900bc6994e42886a63218198b7266e78692584b596e7a7ebc92e38bdd
[INFO] running `Command { std: "docker" "start" "-a" "7290753900bc6994e42886a63218198b7266e78692584b596e7a7ebc92e38bdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling litemap v0.7.5
[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling sptr v0.3.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling fast-float2 v0.2.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling thin-vec v0.2.14
[INFO] [stderr]    Compiling boa_profiler v0.20.0
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling boa_string v0.20.0
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling either v1.15.0
[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/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.106/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"' --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=5a6026879197232f -C extra-filename=-ba0dfc651db2a8a5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a28683de7e2d991e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-de6dd437dfb273ce.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b4c15d9166d0a657.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7290753900bc6994e42886a63218198b7266e78692584b596e7a7ebc92e38bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7290753900bc6994e42886a63218198b7266e78692584b596e7a7ebc92e38bdd", kill_on_drop: false }`
[INFO] [stdout] 7290753900bc6994e42886a63218198b7266e78692584b596e7a7ebc92e38bdd