[INFO] fetching crate gaffa 0.1.5...
[INFO] testing gaffa-0.1.5 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate gaffa 0.1.5 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate gaffa 0.1.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate gaffa 0.1.5
[INFO] tweaked toml for crates.io crate gaffa 0.1.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gaffa 0.1.5 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gaffa 0.1.5 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb53859702fbfe7191e074a303747c63119a6afafc7f5b876c9dbd533187631d
[INFO] running `Command { std: "docker" "start" "-a" "bb53859702fbfe7191e074a303747c63119a6afafc7f5b876c9dbd533187631d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb53859702fbfe7191e074a303747c63119a6afafc7f5b876c9dbd533187631d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb53859702fbfe7191e074a303747c63119a6afafc7f5b876c9dbd533187631d", kill_on_drop: false }`
[INFO] [stdout] bb53859702fbfe7191e074a303747c63119a6afafc7f5b876c9dbd533187631d
[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=forbid -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd5aa22b3f97a4b5d997ad8855bc5986c13da6e93ab2dae7a368efc5b22c6bd2
[INFO] running `Command { std: "docker" "start" "-a" "bd5aa22b3f97a4b5d997ad8855bc5986c13da6e93ab2dae7a368efc5b22c6bd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling xml-rs v0.8.27
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling indexmap v2.10.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling convert_case v0.7.1
[INFO] [stderr]    Compiling anstyle-query v1.1.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling unicode-truncate v1.1.0
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling anstream v0.6.19
[INFO] [stderr]    Compiling compact_str v0.8.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling shell-words v1.1.0
[INFO] [stderr]    Compiling colored v3.0.0
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling clap_builder v4.5.41
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling gethostname v0.2.3
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling signal-hook-mio v0.2.4
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling tree_magic_mini v3.1.6
[INFO] [stderr]    Compiling os_pipe v1.2.2
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[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/733b47ea4b1b86216f14ef56e49440c33933f230/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.104/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --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=fc2d761d356240d4 -C extra-filename=-760c4958c94da282 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f1712703fbf401f9.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-940ab2d4840f1cd6.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-59080bf303a6834d.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bd5aa22b3f97a4b5d997ad8855bc5986c13da6e93ab2dae7a368efc5b22c6bd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5aa22b3f97a4b5d997ad8855bc5986c13da6e93ab2dae7a368efc5b22c6bd2", kill_on_drop: false }`
[INFO] [stdout] bd5aa22b3f97a4b5d997ad8855bc5986c13da6e93ab2dae7a368efc5b22c6bd2