[INFO] fetching crate ecr-server 0.7.0...
[INFO] testing ecr-server-0.7.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate ecr-server 0.7.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ecr-server 0.7.0
[INFO] finished tweaking crates.io crate ecr-server 0.7.0
[INFO] tweaked toml for crates.io crate ecr-server 0.7.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ecr-server 0.7.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ecr-server 0.7.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-http v0.7.0
[INFO] [stderr]   Downloaded aws-lc-rs v1.18.2
[INFO] [stderr]   Downloaded simd_cesu8 v1.1.1
[INFO] [stderr]   Downloaded inotify v0.11.4
[INFO] [stderr]   Downloaded vparser v1.2.1
[INFO] [stderr]   Downloaded ecr-store v0.7.0
[INFO] [stderr]   Downloaded rusqlite v0.39.0
[INFO] [stderr]   Downloaded smtp-proto v0.2.2
[INFO] [stderr]   Downloaded mail-builder v0.4.4
[INFO] [stderr]   Downloaded markup5ever_rcdom v0.38.0+unofficial
[INFO] [stderr]   Downloaded xml5ever v0.38.0
[INFO] [stderr]   Downloaded markup5ever v0.38.0
[INFO] [stderr]   Downloaded libredox v0.1.18
[INFO] [stderr]   Downloaded mail-send v0.6.1
[INFO] [stderr]   Downloaded hashify v0.2.9
[INFO] [stderr]   Downloaded web_atoms v0.2.5
[INFO] [stderr]   Downloaded html5ever v0.38.0
[INFO] [stderr]   Downloaded ecr-core v0.7.0
[INFO] [stderr]   Downloaded htmd v0.5.5
[INFO] [stderr]   Downloaded mail-parser v0.11.5
[INFO] [stderr]   Downloaded async-imap v0.11.3
[INFO] [stderr]   Downloaded stop-token v0.7.0
[INFO] [stderr]   Downloaded imap-proto v0.16.7
[INFO] [stderr]   Downloaded aws-lc-sys v0.46.0
[INFO] [stderr]   Downloaded maplit v1.0.2
[INFO] [stderr]   Downloaded markup5ever v0.40.0
[INFO] [stderr]   Downloaded ammonia v4.2.3
[INFO] [stderr]   Downloaded html5ever v0.40.1
[INFO] [stderr]   Downloaded string_cache_codegen v0.11.2
[INFO] [stderr]   Downloaded phf_generator v0.14.0
[INFO] [stderr]   Downloaded web_atoms v0.3.0
[INFO] [stderr]   Downloaded string_cache v0.11.0
[INFO] [stderr]   Downloaded cssparser v0.38.0
[INFO] [stderr]   Downloaded phf_codegen v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068
[INFO] running `Command { std: "docker" "start" "cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling siphasher v1.0.3
[INFO] [stderr]    Compiling fastrand v2.5.0
[INFO] [stderr]    Compiling mio v1.2.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling tokio-macros v2.7.2
[INFO] [stderr]    Compiling displaydoc v0.2.7
[INFO] [stderr]    Compiling cc v1.4.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bitflags v2.13.1
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling http v1.5.0
[INFO] [stderr]    Compiling aws-lc-rs v1.18.2
[INFO] [stderr]    Compiling tendril v0.5.1
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rustls-pki-types v1.14.0
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]    Compiling rustls v0.23.45
[INFO] [stderr]    Compiling crossbeam-utils v0.8.22
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling phf_shared v0.14.0
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling phf_generator v0.13.1
[INFO] [stderr]    Compiling phf_codegen v0.13.1
[INFO] [stderr]    Compiling phf_generator v0.14.0
[INFO] [stderr]    Compiling string_cache_codegen v0.6.1
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling hybrid-array v0.4.13
[INFO] [stderr]    Compiling tokio v1.53.1
[INFO] [stderr]    Compiling phf v0.14.0
[INFO] [stderr]    Compiling phf_codegen v0.14.0
[INFO] [stderr]    Compiling string_cache_codegen v0.11.2
[INFO] [stderr]    Compiling string_cache v0.11.0
[INFO] [stderr]    Compiling inotify-sys v0.1.8
[INFO] [stderr]    Compiling web_atoms v0.2.5
[INFO] [stderr]    Compiling string_cache v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling rustls-native-certs v0.8.3
[INFO] [stderr]    Compiling event-listener v5.4.2
[INFO] [stderr]    Compiling dtoa v1.0.11
[INFO] [stderr]    Compiling cpufeatures v0.3.0
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling web_atoms v0.3.0
[INFO] [stderr]    Compiling http-body v1.1.0
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling http-body-util v0.1.4
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling crypto-common v0.2.2
[INFO] [stderr]    Compiling block-buffer v0.12.1
[INFO] [stderr]    Compiling cmake v0.1.58
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling winnow v1.0.4
[INFO] [stderr]    Compiling anyhow v1.0.104
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling stop-token v0.7.0
[INFO] [stderr]    Compiling inotify v0.11.4
[INFO] [stderr]    Compiling imap-proto v0.16.7
[INFO] [stderr]    Compiling aws-lc-sys v0.46.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling libsqlite3-sys v0.37.0
[INFO] [stderr]    Compiling hashlink v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.45
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling toml_parser v1.1.3+spec-1.1.0
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling cssparser v0.38.0
[INFO] [stderr]    Compiling digest v0.11.3
[INFO] [stderr]    Compiling chacha20 v0.10.2
[INFO] [stderr]    Compiling notify-types v2.1.0
[INFO] [stderr]    Compiling serde_spanned v1.1.1
[INFO] [stderr]    Compiling toml_datetime v0.7.5+spec-1.1.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.19
[INFO] [stderr]    Compiling winnow v0.7.15
[INFO] [stderr]    Compiling self_cell v1.3.0
[INFO] [stderr]    Compiling toml_writer v1.1.2+spec-1.1.0
[INFO] [stderr]    Compiling markup5ever v0.40.0
[INFO] [stderr]    Compiling html5ever v0.40.1
[INFO] [stderr]    Compiling smtp-proto v0.2.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling gethostname v1.1.0
[INFO] [stderr]    Compiling mail-builder v0.4.4
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling rand v0.10.2
[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/1.99.0-beta.8-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.119/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 -C debug-assertions=off --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=ff218aa8803b35be -C extra-filename=-11e8de9af56786ed --out-dir /opt/rustwide/target/release/deps -C strip=debuginfo -L dependency=/opt/rustwide/target/release/deps --extern proc_macro2=/opt/rustwide/target/release/deps/libproc_macro2-58bd5a67493b0c92.rmeta --extern quote=/opt/rustwide/target/release/deps/libquote-bb159eae73371f0d.rmeta --extern unicode_ident=/opt/rustwide/target/release/deps/libunicode_ident-3d1450b03eaa80c7.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" "cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068", kill_on_drop: false }`
[INFO] [stdout] cbb4797591586707a5ab319254a3d6f8b2ff385541c21dfd8dc3a26f25cdc068