[INFO] cloning repository https://github.com/robinvandernoord/r2-d2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robinvandernoord/r2-d2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinvandernoord%2Fr2-d2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinvandernoord%2Fr2-d2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb36452bece482d5a3862ae132c2744adb84f1fa
[INFO] building robinvandernoord/r2-d2 against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinvandernoord%2Fr2-d2" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robinvandernoord/r2-d2 on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robinvandernoord/r2-d2
[INFO] finished tweaking git repo https://github.com/robinvandernoord/r2-d2
[INFO] tweaked toml for git repo https://github.com/robinvandernoord/r2-d2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/robinvandernoord/r2-d2 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eef8058d26214aca6f834465d6a0f3d4c74f047f551a9685358d44e7f13aa829
[INFO] running `Command { std: "docker" "start" "-a" "eef8058d26214aca6f834465d6a0f3d4c74f047f551a9685358d44e7f13aa829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eef8058d26214aca6f834465d6a0f3d4c74f047f551a9685358d44e7f13aa829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eef8058d26214aca6f834465d6a0f3d4c74f047f551a9685358d44e7f13aa829", kill_on_drop: false }`
[INFO] [stdout] eef8058d26214aca6f834465d6a0f3d4c74f047f551a9685358d44e7f13aa829
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1491374eadaf7e6d7c1f4f0f4bce80f23e3274e0c13a288a6b259941e50a2c20
[INFO] running `Command { std: "docker" "start" "-a" "1491374eadaf7e6d7c1f4f0f4bce80f23e3274e0c13a288a6b259941e50a2c20", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling litemap v0.7.5
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling const-oid v0.9.6
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling cpufeatures v0.2.17
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling pyo3-build-config v0.20.3
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]    Compiling openssl v0.10.71
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling utf8_iter v1.0.4
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling write16 v1.0.0
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling utf16_iter v1.0.5
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling rustix v1.0.3
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling linux-raw-sys v0.9.3
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling dlv-list v0.5.2
[INFO] [stderr]    Compiling vte v0.14.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling socket2 v0.5.9
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling portable-atomic v1.11.0
[INFO] [stderr]    Compiling pyo3-ffi v0.20.3
[INFO] [stderr]    Compiling rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]    Compiling binrw_derive v0.14.1
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling pyo3 v0.20.3
[INFO] [stderr]    Compiling openssl-sys v0.9.106
[INFO] [stderr]    Compiling sha2-asm v0.6.4
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling crc32c v0.6.8
[INFO] [stderr]    Compiling ordered-multimap v0.7.3
[INFO] [stderr]    Compiling universal-hash v0.5.1
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling bstr v1.11.3
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling ipnet v2.11.0
[INFO] [stderr]    Compiling base64ct v1.7.3
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ansitok v0.3.0
[INFO] [stderr]    Compiling binrw v0.14.1
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling trim-in-place v0.1.7
[INFO] [stderr]    Compiling rust_decimal v1.37.1
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling opaque-debug v0.3.1
[INFO] [stderr]    Compiling poly1305 v0.8.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust-ini v0.21.1
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling ansi-str v0.9.0
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling clap_builder v4.5.34
[INFO] [stderr]    Compiling password-hash v0.5.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling tinyvec v1.9.0
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling pyo3-macros-backend v0.20.3
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling salsa20 v0.10.2
[INFO] [stderr]    Compiling ctr v0.9.2
[INFO] [stderr]    Compiling aes v0.8.4
[INFO] [stderr]    Compiling pbkdf2 v0.12.2
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling aead v0.5.2
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling web-time v1.1.0
[INFO] [stderr]    Compiling bytecount v0.6.8
[INFO] [stderr]    Compiling cached_proc_macro_types v0.1.1
[INFO] [stderr]    Compiling unicode-width v0.2.0
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling owo-colors v4.2.0
[INFO] [stderr]    Compiling bytemuck v1.22.0
[INFO] [stderr]    Compiling toml_write v0.1.1
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]    Compiling unindent v0.2.4
[INFO] [stderr]    Compiling winnow v0.7.10
[INFO] [stderr]    Compiling aes256ctr_poly1305aes v0.2.1
[INFO] [stderr]    Compiling papergrid v0.14.0
[INFO] [stderr]    Compiling pariter v0.5.1
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling runtime-format v0.1.3
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling scrypt v0.11.0
[INFO] [stderr]    Compiling gethostname v0.5.0
[INFO] [stderr]    Compiling cachedir v0.3.1
[INFO] [stderr]    Compiling quick_cache v0.6.12
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling xattr v1.5.0
[INFO] [stderr]    Compiling globset v0.4.16
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling path-dedot v3.1.1
[INFO] [stderr]    Compiling shell-words v1.1.0
[INFO] [stderr]    Compiling rustic_cdc v0.3.1
[INFO] [stderr]    Compiling ignore v0.4.23
[INFO] [stderr]    Compiling ecow v0.2.3
[INFO] [stderr]    Compiling humantime v2.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[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/8b8eff55bd72abbb57167bc42222a7f91d41cb0d/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"' --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", "quote", "test", "visit", "visit-mut"))' -C metadata=cac0e419971c65d7 -C extra-filename=-13cdb75ec58e8b2c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6dba12d3a6b30996.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-3d9016b899bf9c47.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b062d05623149337.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" "1491374eadaf7e6d7c1f4f0f4bce80f23e3274e0c13a288a6b259941e50a2c20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1491374eadaf7e6d7c1f4f0f4bce80f23e3274e0c13a288a6b259941e50a2c20", kill_on_drop: false }`
[INFO] [stdout] 1491374eadaf7e6d7c1f4f0f4bce80f23e3274e0c13a288a6b259941e50a2c20