[INFO] fetching crate polkaguard 0.5.2...
[INFO] checking polkaguard-0.5.2 against try#595142ec72045c7f2fab2923de8e59995a52e6e7 for pr-151830
[INFO] extracting crate polkaguard 0.5.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate polkaguard 0.5.2
[INFO] finished tweaking crates.io crate polkaguard 0.5.2
[INFO] tweaked toml for crates.io crate polkaguard 0.5.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polkaguard 0.5.2 on toolchain 595142ec72045c7f2fab2923de8e59995a52e6e7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+595142ec72045c7f2fab2923de8e59995a52e6e7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polkaguard 0.5.2 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" "+595142ec72045c7f2fab2923de8e59995a52e6e7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+595142ec72045c7f2fab2923de8e59995a52e6e7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d1eb97e470bf0e21e89f4b7949b953fc8ffa52d8461bfe9bdeeb3f606156850
[INFO] running `Command { std: "docker" "start" "-a" "1d1eb97e470bf0e21e89f4b7949b953fc8ffa52d8461bfe9bdeeb3f606156850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d1eb97e470bf0e21e89f4b7949b953fc8ffa52d8461bfe9bdeeb3f606156850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d1eb97e470bf0e21e89f4b7949b953fc8ffa52d8461bfe9bdeeb3f606156850", kill_on_drop: false }`
[INFO] [stdout] 1d1eb97e470bf0e21e89f4b7949b953fc8ffa52d8461bfe9bdeeb3f606156850
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+595142ec72045c7f2fab2923de8e59995a52e6e7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00d7914f20113728fa61b65a1fe25b3b3e59e55e7a3f5951e8d37a22a4ef971c
[INFO] running `Command { std: "docker" "start" "-a" "00d7914f20113728fa61b65a1fe25b3b3e59e55e7a3f5951e8d37a22a4ef971c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling winnow v0.7.11
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling parity-scale-codec v3.7.5
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling const-oid v0.9.6
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling camino v1.1.10
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling byte-slice-cast v1.2.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.100
[INFO] [stderr]     Checking const_format v0.2.34
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]    Compiling der v0.7.10
[INFO] [stderr]     Checking unicode-xid v0.2.6
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling bumpalo v3.18.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking const-hex v1.14.1
[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/595142ec72045c7f2fab2923de8e59995a52e6e7/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="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=28d7e5c6312bb7ae -C extra-filename=-7f5af2703a2c7bd5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7ce6b3f4dc219eb0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-44d9337c4ae43907.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b3925cc8f83e9ac1.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" "00d7914f20113728fa61b65a1fe25b3b3e59e55e7a3f5951e8d37a22a4ef971c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d7914f20113728fa61b65a1fe25b3b3e59e55e7a3f5951e8d37a22a4ef971c", kill_on_drop: false }`
[INFO] [stdout] 00d7914f20113728fa61b65a1fe25b3b3e59e55e7a3f5951e8d37a22a4ef971c