[INFO] cloning repository https://github.com/theomund/doorknob
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theomund/doorknob" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheomund%2Fdoorknob", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheomund%2Fdoorknob'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80dd73edb9e84ecfbe0208add8954830407ed43c
[INFO] checking theomund/doorknob against try#943e2200e35c3825486c4671b6cab0107a07f8c1 for pr-148952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheomund%2Fdoorknob" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/theomund/doorknob
[INFO] finished tweaking git repo https://github.com/theomund/doorknob
[INFO] tweaked toml for git repo https://github.com/theomund/doorknob written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/theomund/doorknob on toolchain 943e2200e35c3825486c4671b6cab0107a07f8c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/theomund/doorknob 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" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e2472e1e60bc79e44ae2a8f366aa53e534e1460663a4d61a5fa92dd78de604a
[INFO] running `Command { std: "docker" "start" "-a" "8e2472e1e60bc79e44ae2a8f366aa53e534e1460663a4d61a5fa92dd78de604a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e2472e1e60bc79e44ae2a8f366aa53e534e1460663a4d61a5fa92dd78de604a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e2472e1e60bc79e44ae2a8f366aa53e534e1460663a4d61a5fa92dd78de604a", kill_on_drop: false }`
[INFO] [stdout] 8e2472e1e60bc79e44ae2a8f366aa53e534e1460663a4d61a5fa92dd78de604a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d7bf28c7aac430fd5cceea58f91c54ae1114cf9fff3719711640a59c29ad8e9
[INFO] running `Command { std: "docker" "start" "-a" "2d7bf28c7aac430fd5cceea58f91c54ae1114cf9fff3719711640a59c29ad8e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.173
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytemuck v1.23.1
[INFO] [stderr]    Compiling rustls v0.23.28
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking mime_guess v2.0.5
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]    Compiling serenity v0.12.4
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]     Checking no-std-compat v0.2.0
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking extended v0.1.0
[INFO] [stderr]     Checking uwl v0.6.0
[INFO] [stderr]     Checking levenshtein v1.0.5
[INFO] [stderr]     Checking transpose v0.2.3
[INFO] [stderr]     Checking primal-check v0.3.4
[INFO] [stderr]     Checking stable-vec v0.4.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking patricia_tree v0.8.0
[INFO] [stderr]    Compiling songbird v0.5.0
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking pnet_base v0.34.0
[INFO] [stderr]     Checking ringbuf v0.4.8
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking pnet_macros_support v0.34.0
[INFO] [stderr]     Checking rustfft v6.4.0
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]    Compiling audiopus_sys v0.2.2
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]     Checking uuid v1.17.0
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking flume v0.11.1
[INFO] [stderr]     Checking rand v0.9.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]     Checking polyval v0.6.2
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking audiopus v0.3.0-rc.0
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking ghash v0.5.1
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking chacha20poly1305 v0.10.1
[INFO] [stderr]     Checking aes-gcm v0.10.3
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.29
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]     Checking tokio v1.45.1
[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/943e2200e35c3825486c4671b6cab0107a07f8c1/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=8b4d3235fcc676e1 -C extra-filename=-0872d710fddeb717 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-09040b10b620fa15.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-bff949ffe258c67d.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" "2d7bf28c7aac430fd5cceea58f91c54ae1114cf9fff3719711640a59c29ad8e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7bf28c7aac430fd5cceea58f91c54ae1114cf9fff3719711640a59c29ad8e9", kill_on_drop: false }`
[INFO] [stdout] 2d7bf28c7aac430fd5cceea58f91c54ae1114cf9fff3719711640a59c29ad8e9