[INFO] fetching crate zingo-memo 0.0.1...
[INFO] checking zingo-memo-0.0.1 against try#78c81ee3917a99dcff6e2e6822800f0492c415c3 for pr-148967
[INFO] extracting crate zingo-memo 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate zingo-memo 0.0.1
[INFO] finished tweaking crates.io crate zingo-memo 0.0.1
[INFO] tweaked toml for crates.io crate zingo-memo 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zingo-memo 0.0.1 on toolchain 78c81ee3917a99dcff6e2e6822800f0492c415c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zingo-memo 0.0.1 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" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20f5303e8e8a8c166a37cc419832274f30331a3b40f2e5392b185e87d81c221e
[INFO] running `Command { std: "docker" "start" "-a" "20f5303e8e8a8c166a37cc419832274f30331a3b40f2e5392b185e87d81c221e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20f5303e8e8a8c166a37cc419832274f30331a3b40f2e5392b185e87d81c221e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f5303e8e8a8c166a37cc419832274f30331a3b40f2e5392b185e87d81c221e", kill_on_drop: false }`
[INFO] [stdout] 20f5303e8e8a8c166a37cc419832274f30331a3b40f2e5392b185e87d81c221e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8a6be3a6215ecfe0ac8c693afa189eb64bb1be599d3f6dac9e31ced9fb04d13
[INFO] running `Command { std: "docker" "start" "-a" "b8a6be3a6215ecfe0ac8c693afa189eb64bb1be599d3f6dac9e31ced9fb04d13", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]    Compiling hashbrown v0.15.3
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]     Checking base64ct v1.7.3
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling toml_datetime v0.6.9
[INFO] [stderr]    Compiling winnow v0.7.10
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling derive-deftly-macros v0.14.6
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]     Checking heck v0.5.0
[INFO] [stderr]     Checking retry-error v0.6.3
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking fluid-let v1.0.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking memuse v0.2.2
[INFO] [stderr]    Compiling rustls v0.23.27
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling async_executors v0.7.0
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking lock_api v0.4.12
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling cc v1.2.23
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking coarsetime v0.1.36
[INFO] [stderr]     Checking blake2b_simd v1.0.3
[INFO] [stderr]    Compiling uncased v0.9.10
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking toml_write v0.1.1
[INFO] [stderr]     Checking tokio v1.45.0
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking filetime v0.2.25
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]    Compiling figment v0.10.19
[INFO] [stderr]     Checking amplify_num v0.5.3
[INFO] [stderr]     Checking ascii v1.1.0
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking dirs v6.0.0
[INFO] [stderr]     Checking inout v0.1.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking shellexpand v3.1.1
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]     Checking caret v0.5.1
[INFO] [stderr]     Checking notify v6.1.1
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]     Checking by_address v1.2.1
[INFO] [stderr]     Checking weak-table v0.3.2
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking hybrid-array v0.3.1
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking core2 v0.3.3
[INFO] [stderr]    Compiling toml_edit v0.22.26
[INFO] [stderr]     Checking pairing v0.23.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking priority-queue v2.3.1
[INFO] [stderr]     Checking typed-index-collections v3.3.0
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]     Checking hkdf v0.12.4
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]     Checking crypto-common v0.2.0-rc.2
[INFO] [stderr]     Checking block-buffer v0.11.0-rc.4
[INFO] [stderr]     Checking bls12_381 v0.8.0
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking pasta_curves v0.5.1
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling secp256k1-sys v0.10.1
[INFO] [stderr]    Compiling liblzma-sys v0.4.3
[INFO] [stderr]     Checking fslock v0.2.1
[INFO] [stderr]     Checking sanitize-filename v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling amplify_syn v2.0.1
[INFO] [stderr]     Checking nonempty v0.11.0
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]     Checking digest v0.11.0-pre.9
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking jubjub v0.10.0
[INFO] [stderr]     Checking bs58 v0.5.1
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking zcash_spec v0.2.1
[INFO] [stderr]    Compiling prettyplease v0.2.32
[INFO] [stderr]     Checking dyn-clone v1.0.19
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]     Checking zip32 v0.2.0
[INFO] [stderr]     Checking miniz_oxide v0.8.8
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking zcash_encoding v0.3.0
[INFO] [stderr]     Checking zcash_protocol v0.5.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]     Checking ssh-encoding v0.2.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]     Checking f4jumble v0.1.1
[INFO] [stderr]     Checking maybe-rayon v0.1.1
[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/78c81ee3917a99dcff6e2e6822800f0492c415c3/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.101/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="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=c9d1f571954c65ce -C extra-filename=-c42e7ae4319c44f5 --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" "b8a6be3a6215ecfe0ac8c693afa189eb64bb1be599d3f6dac9e31ced9fb04d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8a6be3a6215ecfe0ac8c693afa189eb64bb1be599d3f6dac9e31ced9fb04d13", kill_on_drop: false }`
[INFO] [stdout] b8a6be3a6215ecfe0ac8c693afa189eb64bb1be599d3f6dac9e31ced9fb04d13