[INFO] fetching crate cargo-msrv 0.18.4...
[INFO] testing cargo-msrv-0.18.4 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate cargo-msrv 0.18.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate cargo-msrv 0.18.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cargo-msrv 0.18.4
[INFO] tweaked toml for crates.io crate cargo-msrv 0.18.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-msrv 0.18.4 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cargo-msrv 0.18.4 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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8979484fcecb866e1bc935f25d1d68083c339035f40178953493dfcb2bd227e3
[INFO] running `Command { std: "docker" "start" "-a" "8979484fcecb866e1bc935f25d1d68083c339035f40178953493dfcb2bd227e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8979484fcecb866e1bc935f25d1d68083c339035f40178953493dfcb2bd227e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8979484fcecb866e1bc935f25d1d68083c339035f40178953493dfcb2bd227e3", kill_on_drop: false }`
[INFO] [stdout] 8979484fcecb866e1bc935f25d1d68083c339035f40178953493dfcb2bd227e3
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ef6199ac2f814d3f3ae02e8ee772b0fd75266fd3f79686825b4b2080ee4fb29
[INFO] running `Command { std: "docker" "start" "-a" "2ef6199ac2f814d3f3ae02e8ee772b0fd75266fd3f79686825b4b2080ee4fb29", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling once_cell v1.21.2
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling deranged v0.4.1
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling dunce v1.0.5
[INFO] [stderr]    Compiling vsimd v0.8.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling outref v0.5.2
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling aws-lc-rs v1.12.6
[INFO] [stderr]    Compiling time-macros v0.2.22
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling bytes-utils v0.1.4
[INFO] [stderr]    Compiling rustls v0.23.25
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling const-oid v0.9.6
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling base64ct v1.7.3
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling der v0.6.1
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling base16ct v0.1.1
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling rustls-native-certs v0.6.3
[INFO] [stderr]    Compiling rustls-native-certs v0.8.1
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling base64-simd v0.8.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling camino v1.1.9
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-lite v0.1.6
[INFO] [stderr]    Compiling xmlparser v0.13.6
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling spki v0.6.0
[INFO] [stderr]    Compiling ff v0.12.1
[INFO] [stderr]    Compiling crypto-bigint v0.4.9
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling pkcs8 v0.9.0
[INFO] [stderr]    Compiling group v0.12.1
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling sec1 v0.3.0
[INFO] [stderr]    Compiling signature v1.6.4
[INFO] [stderr]    Compiling crypto-bigint v0.5.5
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling ureq-proto v0.3.5
[INFO] [stderr]    Compiling aws-smithy-xml v0.60.9
[INFO] [stderr]    Compiling crc v3.2.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling rfc6979 v0.3.1
[INFO] [stderr]    Compiling elliptic-curve v0.12.3
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.2
[INFO] [stderr]    Compiling urlencoding v2.1.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling ecdsa v0.14.8
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling directories-next v2.0.0
[INFO] [stderr]    Compiling vergen v8.3.2
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling vte v0.10.1
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling p256 v0.11.1
[INFO] [stderr]    Compiling crc64fast-nvme v1.2.0
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling rustix v1.0.3
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling clap_builder v4.5.34
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling owo-colors v4.2.0
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling bytecount v0.6.8
[INFO] [stderr]    Compiling linux-raw-sys v0.9.3
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling winnow v0.7.4
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling storyteller v1.0.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling aws-lc-sys v0.27.1
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling bisector v0.4.0
[INFO] [stderr]    Compiling regex v1.11.1
[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/beta-2025-10-28-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.100/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="fold"' --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=4c26d68ed670d11f -C extra-filename=-b3873e3af62eb4ea --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-476290cbe1d6f95e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b7bdb8b4a7e2aef2.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-958b805d9ab3f4fe.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2ef6199ac2f814d3f3ae02e8ee772b0fd75266fd3f79686825b4b2080ee4fb29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef6199ac2f814d3f3ae02e8ee772b0fd75266fd3f79686825b4b2080ee4fb29", kill_on_drop: false }`
[INFO] [stdout] 2ef6199ac2f814d3f3ae02e8ee772b0fd75266fd3f79686825b4b2080ee4fb29
