[INFO] fetching crate necessist-backends 2.1.2...
[INFO] building necessist-backends-2.1.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate necessist-backends 2.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate necessist-backends 2.1.2
[INFO] finished tweaking crates.io crate necessist-backends 2.1.2
[INFO] tweaked toml for crates.io crate necessist-backends 2.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate necessist-backends 2.1.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate necessist-backends 2.1.2 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tree-sitter-language v0.1.5
[INFO] [stderr]   Downloaded par-core v2.0.0
[INFO] [stderr]   Downloaded streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded winapi-util v0.1.10
[INFO] [stderr]   Downloaded string_enum v1.0.2
[INFO] [stderr]   Downloaded bytes-str v0.2.7
[INFO] [stderr]   Downloaded ctrlc v3.4.7
[INFO] [stderr]   Downloaded wit-bindgen v0.45.0
[INFO] [stderr]   Downloaded diesel_table_macro_syntax v0.2.0
[INFO] [stderr]   Downloaded swc_ecma_parser v23.0.0
[INFO] [stderr]   Downloaded time-core v0.1.5
[INFO] [stderr]   Downloaded clap v4.5.46
[INFO] [stderr]   Downloaded unicode-id-start v1.3.1
[INFO] [stderr]   Downloaded rewriter v0.2.1
[INFO] [stderr]   Downloaded time-macros v0.2.23
[INFO] [stderr]   Downloaded remain v0.2.15
[INFO] [stderr]   Downloaded subprocess v0.2.9
[INFO] [stderr]   Downloaded cargo_metadata v0.19.2
[INFO] [stderr]   Downloaded swc_visit v2.0.1
[INFO] [stderr]   Downloaded diesel_derives v2.2.7
[INFO] [stderr]   Downloaded time v0.3.42
[INFO] [stderr]   Downloaded clap_builder v4.5.46
[INFO] [stderr]   Downloaded git2 v0.20.2
[INFO] [stderr]   Downloaded diesel v2.2.12
[INFO] [stderr]   Downloaded indicatif v0.18.0
[INFO] [stderr]   Downloaded swc_ecma_lexer v23.0.1
[INFO] [stderr]   Downloaded curl v0.4.49
[INFO] [stderr]   Downloaded libgit2-sys v0.18.2+1.9.1
[INFO] [stderr]   Downloaded swc_common v14.0.3
[INFO] [stderr]   Downloaded indexmap v2.11.0
[INFO] [stderr]   Downloaded libssh2-sys v0.3.1
[INFO] [stderr]   Downloaded vergen v9.0.6
[INFO] [stderr]   Downloaded bitflags v2.9.3
[INFO] [stderr]   Downloaded dsl_auto_type v0.1.3
[INFO] [stderr]   Downloaded deranged v0.5.3
[INFO] [stderr]   Downloaded unit-prefix v0.5.1
[INFO] [stderr]   Downloaded necessist-core v2.1.2
[INFO] [stderr]   Downloaded swc_allocator v4.0.1
[INFO] [stderr]   Downloaded swc_ecma_utils v21.0.0
[INFO] [stderr]   Downloaded triomphe v0.1.14
[INFO] [stderr]   Downloaded hstr v2.0.1
[INFO] [stderr]   Downloaded libredox v0.1.9
[INFO] [stderr]   Downloaded better_scoped_tls v1.0.1
[INFO] [stderr]   Downloaded from_variant v2.0.2
[INFO] [stderr]   Downloaded swc_eq_ignore_macros v1.0.1
[INFO] [stderr]   Downloaded ryu-js v1.0.2
[INFO] [stderr]   Downloaded swc_atoms v7.0.0
[INFO] [stderr]   Downloaded swc_ecma_visit v15.0.0
[INFO] [stderr]   Downloaded camino v1.1.12
[INFO] [stderr]   Downloaded toml_edit v0.23.4
[INFO] [stderr]   Downloaded tree-sitter v0.25.8
[INFO] [stderr]   Downloaded wasi v0.14.3+wasi-0.2.4
[INFO] [stderr]   Downloaded cc v1.2.35
[INFO] [stderr]   Downloaded console v0.16.0
[INFO] [stderr]   Downloaded solang-parser v0.3.5
[INFO] [stderr]   Downloaded swc_ecma_transforms_base v25.0.0
[INFO] [stderr]   Downloaded is-macro v0.3.7
[INFO] [stderr]   Downloaded ast_node v3.0.3
[INFO] [stderr]   Downloaded swc_macros_common v1.0.1
[INFO] [stderr]   Downloaded tree-sitter-go v0.25.0
[INFO] [stderr]   Downloaded smartstring v1.0.1
[INFO] [stderr]   Downloaded swc_ecma_ast v15.0.0
[INFO] [stderr]   Downloaded vergen-lib v0.1.6
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.0
[INFO] [stderr]   Downloaded curl-sys v0.4.83+curl-8.15.0
[INFO] [stderr]   Downloaded swc_core v38.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4b6309ae966d2e97a4acad014b16b8b7fa0e5128b8db5fd453dfc02769c7e3a
[INFO] running `Command { std: "docker" "start" "-a" "d4b6309ae966d2e97a4acad014b16b8b7fa0e5128b8db5fd453dfc02769c7e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4b6309ae966d2e97a4acad014b16b8b7fa0e5128b8db5fd453dfc02769c7e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b6309ae966d2e97a4acad014b16b8b7fa0e5128b8db5fd453dfc02769c7e3a", kill_on_drop: false }`
[INFO] [stdout] d4b6309ae966d2e97a4acad014b16b8b7fa0e5128b8db5fd453dfc02769c7e3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe49acb796a2b41146e816a1f88767f9c0af6f2acd227dc2d351e4d9231ffbcb
[INFO] running `Command { std: "docker" "start" "-a" "fe49acb796a2b41146e816a1f88767f9c0af6f2acd227dc2d351e4d9231ffbcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling find-msvc-tools v0.1.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bitflags v2.9.3
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling camino v1.1.12
[INFO] [stderr]    Compiling better_scoped_tls v1.0.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling swc_visit v2.0.1
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling unicode-id-start v1.3.1
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling vergen-lib v0.1.6
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling vergen v9.0.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling cc v1.2.35
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling ena v0.14.3
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.35.0
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling lalrpop-util v0.20.2
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling toml_parser v1.0.2
[INFO] [stderr]    Compiling par-core v2.0.0
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling toml_writer v1.0.2
[INFO] [stderr]    Compiling rlimit v0.10.2
[INFO] [stderr]    Compiling ryu-js v1.0.2
[INFO] [stderr]    Compiling predicates-core v1.0.9
[INFO] [stderr]    Compiling anstream v0.6.20
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling console v0.16.0
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling termtree v0.5.1
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling unit-prefix v0.5.1
[INFO] [stderr]    Compiling assert_cmd v2.0.17
[INFO] [stderr]    Compiling tree-sitter-language v0.1.5
[INFO] [stderr]    Compiling indicatif v0.18.0
[INFO] [stderr]    Compiling clap_builder v4.5.46
[INFO] [stderr]    Compiling predicates-tree v1.0.12
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling subprocess v0.2.9
[INFO] [stderr]    Compiling predicates v3.1.3
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling swc_allocator v4.0.1
[INFO] [stderr]    Compiling vte v0.14.1
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling psm v0.1.26
[INFO] [stderr]    Compiling stacker v0.1.21
[INFO] [stderr]    Compiling libssh2-sys v0.3.1
[INFO] [stderr]    Compiling libgit2-sys v0.18.2+1.9.1
[INFO] [stderr]    Compiling regex v1.11.2
[INFO] [stderr]    Compiling tree-sitter-go v0.25.0
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling dunce v1.0.5
[INFO] [stderr]    Compiling lalrpop v0.20.2
[INFO] [stderr]    Compiling tempfile v3.21.0
[INFO] [stderr]    Compiling strum v0.27.2
[INFO] [stderr]    Compiling streaming-iterator v0.1.9
[INFO] [stderr]    Compiling rewriter v0.2.1
[INFO] [stderr]    Compiling ctrlc v3.4.7
[INFO] [stderr]    Compiling strip-ansi-escapes v0.2.1
[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/c7f6aa2869acdbf014d094c6e427e554e160b6db/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"' --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=fa1f1083e7b1533f -C extra-filename=-35284f1e9b4ef153 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-19dd80e4cdc60515.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-afccc649816e3468.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-549afb6be76d59d6.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" "fe49acb796a2b41146e816a1f88767f9c0af6f2acd227dc2d351e4d9231ffbcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe49acb796a2b41146e816a1f88767f9c0af6f2acd227dc2d351e4d9231ffbcb", kill_on_drop: false }`
[INFO] [stdout] fe49acb796a2b41146e816a1f88767f9c0af6f2acd227dc2d351e4d9231ffbcb