[INFO] fetching crate learnerd 0.3.5...
[INFO] testing learnerd-0.3.5 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] extracting crate learnerd 0.3.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate learnerd 0.3.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate learnerd 0.3.5
[INFO] tweaked toml for crates.io crate learnerd 0.3.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate learnerd 0.3.5 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate learnerd 0.3.5 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.92
[INFO] [stderr]   Downloaded quote v1.0.37
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[INFO] [stderr]   Downloaded tinystr v0.7.6
[INFO] [stderr]   Downloaded anstream v0.6.18
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[INFO] [stderr]   Downloaded icu_locid_transform v1.5.0
[INFO] [stderr]   Downloaded quinn-udp v0.5.7
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[INFO] [stderr]   Downloaded wasm-bindgen v0.2.95
[INFO] [stderr]   Downloaded iana-time-zone v0.1.61
[INFO] [stderr]   Downloaded zerovec-derive v0.10.3
[INFO] [stderr]   Downloaded synstructure v0.13.1
[INFO] [stderr]   Downloaded yoke v0.7.5
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[INFO] [stderr]   Downloaded serde_derive v1.0.215
[INFO] [stderr]   Downloaded parking_lot v0.12.3
[INFO] [stderr]   Downloaded async-trait v0.1.83
[INFO] [stderr]   Downloaded clap_derive v4.5.18
[INFO] [stderr]   Downloaded assert_cmd v2.0.16
[INFO] [stderr]   Downloaded smallvec v1.13.2
[INFO] [stderr]   Downloaded tempfile v3.14.0
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[INFO] [stderr]   Downloaded signal-hook v0.3.17
[INFO] [stderr]   Downloaded clap_complete v4.5.38
[INFO] [stderr]   Downloaded socket2 v0.5.7
[INFO] [stderr]   Downloaded icu_locid v1.5.0
[INFO] [stderr]   Downloaded weezl v0.1.8
[INFO] [stderr]   Downloaded encode_unicode v0.3.6
[INFO] [stderr]   Downloaded anyhow v1.0.93
[INFO] [stderr]   Downloaded rangemap v1.5.1
[INFO] [stderr]   Downloaded allocator-api2 v0.2.20
[INFO] [stderr]   Downloaded backtrace v0.3.74
[INFO] [stderr]   Downloaded compact_str v0.8.0
[INFO] [stderr]   Downloaded js-sys v0.3.72
[INFO] [stderr]   Downloaded rustls-pki-types v1.10.0
[INFO] [stderr]   Downloaded icu_provider v1.5.0
[INFO] [stderr]   Downloaded writeable v0.5.5
[INFO] [stderr]   Downloaded icu_normalizer v1.5.0
[INFO] [stderr]   Downloaded icu_normalizer_data v1.5.0
[INFO] [stderr]   Downloaded clap v4.5.21
[INFO] [stderr]   Downloaded serde v1.0.215
[INFO] [stderr]   Downloaded toml v0.8.19
[INFO] [stderr]   Downloaded cc v1.2.1
[INFO] [stderr]   Downloaded icu_properties v1.5.1
[INFO] [stderr]   Downloaded icu_collections v1.5.0
[INFO] [stderr]   Downloaded quinn v0.11.6
[INFO] [stderr]   Downloaded hyper-util v0.1.10
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.13
[INFO] [stderr]   Downloaded indexmap v2.6.0
[INFO] [stderr]   Downloaded http v1.1.0
[INFO] [stderr]   Downloaded flate2 v1.0.35
[INFO] [stderr]   Downloaded mio v1.0.2
[INFO] [stderr]   Downloaded toml_edit v0.22.22
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[INFO] [stderr]   Downloaded serde_json v1.0.133
[INFO] [stderr]   Downloaded hyper v1.5.1
[INFO] [stderr]   Downloaded winnow v0.6.20
[INFO] [stderr]   Downloaded learner v0.8.6
[INFO] [stderr]   Downloaded zerovec v0.10.4
[INFO] [stderr]   Downloaded quick-xml v0.37.1
[INFO] [stderr]   Downloaded reqwest v0.12.9
[INFO] [stderr]   Downloaded syn v2.0.89
[INFO] [stderr]   Downloaded chrono v0.4.38
[INFO] [stderr]   Downloaded quinn-proto v0.11.9
[INFO] [stderr]   Downloaded icu_properties_data v1.5.0
[INFO] [stderr]   Downloaded webpki-roots v0.26.7
[INFO] [stderr]   Downloaded object v0.36.5
[INFO] [stderr]   Downloaded rustix v0.38.41
[INFO] [stderr]   Downloaded rustls v0.23.18
[INFO] [stderr]   Downloaded bstr v1.11.0
[INFO] [stderr]   Downloaded regex-automata v0.4.8
[INFO] [stderr]   Downloaded web-sys v0.3.72
[INFO] [stderr]   Downloaded libc v0.2.164
[INFO] [stderr]   Downloaded tokio v1.41.1
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.14
[INFO] [stderr]   Downloaded ring v0.17.8
[INFO] [stderr]   Downloaded lopdf v0.34.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f68372eec19e16e477a19372a939f5b2ec4dda89a917c26273bb4a29d789f816
[INFO] running `Command { std: "docker" "start" "-a" "f68372eec19e16e477a19372a939f5b2ec4dda89a917c26273bb4a29d789f816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f68372eec19e16e477a19372a939f5b2ec4dda89a917c26273bb4a29d789f816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68372eec19e16e477a19372a939f5b2ec4dda89a917c26273bb4a29d789f816", kill_on_drop: false }`
[INFO] [stdout] f68372eec19e16e477a19372a939f5b2ec4dda89a917c26273bb4a29d789f816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2ca25a16dfe3e23cb21b761ab339db3c70b031446d4107a89f102259e2bf35c
[INFO] running `Command { std: "docker" "start" "-a" "c2ca25a16dfe3e23cb21b761ab339db3c70b031446d4107a89f102259e2bf35c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling itoa v1.0.13
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling bytes v1.8.0
[INFO] [stderr]    Compiling cc v1.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling litemap v0.7.4
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling rustls-pki-types v1.10.0
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling icu_properties_data v1.5.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.0
[INFO] [stderr]    Compiling write16 v1.0.0
[INFO] [stderr]    Compiling utf16_iter v1.0.5
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling rustls v0.23.18
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.15.1
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling syn v2.0.89
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling rustix v0.38.41
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling webpki-roots v0.26.7
[INFO] [stderr]    Compiling winnow v0.6.20
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling hashlink v0.9.1
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling clap_lex v0.7.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling fallible-iterator v0.3.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling thiserror v2.0.3
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling clap_builder v4.5.21
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling flate2 v1.0.35
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling weezl v0.1.8
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling ipnet v2.10.1
[INFO] [stderr]    Compiling fastrand v2.2.0
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling rangemap v1.5.1
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling shell-words v1.1.0
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling glob v0.3.1
[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/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.89/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=3a805d55278483ff -C extra-filename=-852af36f578bdb20 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0c11855c13beb358.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ae06b0b95bbc31e2.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-8ad31e51b6875e3d.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" "c2ca25a16dfe3e23cb21b761ab339db3c70b031446d4107a89f102259e2bf35c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2ca25a16dfe3e23cb21b761ab339db3c70b031446d4107a89f102259e2bf35c", kill_on_drop: false }`
[INFO] [stdout] c2ca25a16dfe3e23cb21b761ab339db3c70b031446d4107a89f102259e2bf35c
