[INFO] fetching crate dcap-artifact-retrieval 0.4.2...
[INFO] testing dcap-artifact-retrieval-0.4.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate dcap-artifact-retrieval 0.4.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate dcap-artifact-retrieval 0.4.2
[INFO] finished tweaking crates.io crate dcap-artifact-retrieval 0.4.2
[INFO] tweaked toml for crates.io crate dcap-artifact-retrieval 0.4.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dcap-artifact-retrieval 0.4.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dcap-artifact-retrieval 0.4.2 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dffec7a3896a76fcd246789f27d6c0349483e3af736b9fb86cde2f86ba3eb0fb
[INFO] running `Command { std: "docker" "start" "-a" "dffec7a3896a76fcd246789f27d6c0349483e3af736b9fb86cde2f86ba3eb0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dffec7a3896a76fcd246789f27d6c0349483e3af736b9fb86cde2f86ba3eb0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dffec7a3896a76fcd246789f27d6c0349483e3af736b9fb86cde2f86ba3eb0fb", kill_on_drop: false }`
[INFO] [stdout] dffec7a3896a76fcd246789f27d6c0349483e3af736b9fb86cde2f86ba3eb0fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d1575e616a41e30b83688dc7dea607ab0e847567eea3b628a4bd22abc5bdfb0
[INFO] running `Command { std: "docker" "start" "-a" "9d1575e616a41e30b83688dc7dea607ab0e847567eea3b628a4bd22abc5bdfb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling bytes v1.7.1
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling cc v1.2.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling prettyplease v0.2.17
[INFO] [stderr]    Compiling rustix v0.38.10
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling vcpkg v0.2.10
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling libloading v0.7.2
[INFO] [stderr]    Compiling home v0.5.11
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling bindgen v0.65.1
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling openssl-sys v0.9.106
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling openssl v0.10.71
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling mbedtls-platform-support v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling anyhow v1.0.82
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling tower-layer v0.3.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling winnow v0.6.18
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling yasna v0.3.2
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling sgx-isa v0.4.1
[INFO] [stderr]    Compiling b64-ct v0.1.3
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]    Compiling rustc-demangle v0.1.17
[INFO] [stderr]    Compiling mbedtls v0.13.3
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling pkix v0.2.1
[INFO] [stderr]    Compiling toml_edit v0.22.20
[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/beta-2025-09-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.81/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"' --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", "quote", "test", "visit", "visit-mut"))' -C metadata=f341669c46c5cfd2 -C extra-filename=-1583cf0d6d36383f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a74c60fbafce107f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a119cfabdc09a969.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1b701a2825606e4e.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9d1575e616a41e30b83688dc7dea607ab0e847567eea3b628a4bd22abc5bdfb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1575e616a41e30b83688dc7dea607ab0e847567eea3b628a4bd22abc5bdfb0", kill_on_drop: false }`
[INFO] [stdout] 9d1575e616a41e30b83688dc7dea607ab0e847567eea3b628a4bd22abc5bdfb0
