[INFO] fetching crate qbittorrent-metrics-exporter 0.3.0...
[INFO] documenting qbittorrent-metrics-exporter-0.3.0 against beta-2025-09-21 for beta-rustdoc-1.91-2
[INFO] extracting crate qbittorrent-metrics-exporter 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate qbittorrent-metrics-exporter 0.3.0
[INFO] finished tweaking crates.io crate qbittorrent-metrics-exporter 0.3.0
[INFO] tweaked toml for crates.io crate qbittorrent-metrics-exporter 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qbittorrent-metrics-exporter 0.3.0 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 qbittorrent-metrics-exporter 0.3.0 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] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5635dfddbc4c93451a2486adc5078edcc23c6523bb975e6b0cc246475f77e19
[INFO] running `Command { std: "docker" "start" "-a" "c5635dfddbc4c93451a2486adc5078edcc23c6523bb975e6b0cc246475f77e19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5635dfddbc4c93451a2486adc5078edcc23c6523bb975e6b0cc246475f77e19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5635dfddbc4c93451a2486adc5078edcc23c6523bb975e6b0cc246475f77e19", kill_on_drop: false }`
[INFO] [stdout] c5635dfddbc4c93451a2486adc5078edcc23c6523bb975e6b0cc246475f77e19
[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=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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9840e8fc152d82b5d9040f70bc599125c8cf89c8198cdf83fa2c62226c6d5787
[INFO] running `Command { std: "docker" "start" "-a" "9840e8fc152d82b5d9040f70bc599125c8cf89c8198cdf83fa2c62226c6d5787", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking value-bag v1.11.1
[INFO] [stderr]     Checking bytes v1.10.0
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]     Checking foldhash v0.1.4
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]     Checking litemap v0.7.4
[INFO] [stderr]     Checking icu_locid_transform_data v1.5.0
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking icu_properties_data v1.5.0
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking icu_normalizer_data v1.5.0
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.139
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling time-macros v0.2.19
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking event-listener v5.4.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling bigdecimal v0.4.8
[INFO] [stderr]    Compiling rust_decimal v1.37.2
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling rustls v0.23.23
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking webpki-roots v1.0.0
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking tinyvec v1.9.0
[INFO] [stderr]     Checking webpki-roots v0.26.11
[INFO] [stderr]     Checking hashlink v0.10.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling httparse v1.10.0
[INFO] [stderr]     Checking crc v3.3.0
[INFO] [stderr]     Checking http v1.2.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking atoi v2.0.0
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking dotenvy v0.15.7
[INFO] [stderr]     Checking unicode-properties v0.1.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking flume v0.11.1
[INFO] [stderr]     Checking hkdf v0.12.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]     Checking unicode-normalization v0.1.24
[INFO] [stderr]     Checking whoami v1.6.0
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]     Checking home v0.5.11
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking ordered-float v4.6.0
[INFO] [stderr]    Compiling openssl v0.10.71
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]    Compiling utf8_iter v1.0.4
[INFO] [stderr]     Checking futures-lite v2.6.0
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]    Compiling cc v1.2.15
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking local-waker v0.1.4
[INFO] [stderr]     Checking stringprep v0.1.5
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]    Compiling zlib-rs v0.5.1
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]     Checking aliasable v0.1.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bytestring v1.4.0
[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling zopfli v0.8.2
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking brotli-decompressor v5.0.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]     Checking actix-utils v3.0.1
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]     Checking async-lock v3.4.0
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking actix-service v2.0.3
[INFO] [stderr]     Checking unicase v2.8.1
[INFO] [stderr]    Compiling regex-lite v0.1.6
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking brotli v8.0.1
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]    Compiling rust-embed-utils v8.7.2
[INFO] [stderr]     Checking blocking v1.6.1
[INFO] [stderr]     Checking async-executor v1.13.2
[INFO] [stderr]     Checking local-channel v0.1.5
[INFO] [stderr]    Compiling ring v0.17.10
[INFO] [stderr]    Compiling openssl-sys v0.9.106
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]    Compiling utoipa-swagger-ui-vendored v0.1.2
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking iri-string v0.7.8
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[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=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.98/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=df77df132a360dd2 -C extra-filename=-ce66f23426483958 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-afb286afc3aedca7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-bc2ea428be4cc0e7.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-d3b6c537b11caace.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" "9840e8fc152d82b5d9040f70bc599125c8cf89c8198cdf83fa2c62226c6d5787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9840e8fc152d82b5d9040f70bc599125c8cf89c8198cdf83fa2c62226c6d5787", kill_on_drop: false }`
[INFO] [stdout] 9840e8fc152d82b5d9040f70bc599125c8cf89c8198cdf83fa2c62226c6d5787
