[INFO] fetching crate darkroom 0.9.1...
[INFO] testing darkroom-0.9.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate darkroom 0.9.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate darkroom 0.9.1
[INFO] finished tweaking crates.io crate darkroom 0.9.1
[INFO] tweaked toml for crates.io crate darkroom 0.9.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate darkroom 0.9.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate darkroom 0.9.1 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zerofrom-derive v0.1.5
[INFO] [stderr]   Downloaded zerofrom v0.1.5
[INFO] [stderr]   Downloaded litemap v0.7.4
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[INFO] [stderr]   Downloaded quinn-udp v0.5.10
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[INFO] [stderr]   Downloaded unicode-ccc v0.3.0
[INFO] [stderr]   Downloaded ravif v0.11.11
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[INFO] [stderr]   Downloaded profiling v1.0.16
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[INFO] [stderr]   Downloaded avif-serialize v0.8.2
[INFO] [stderr]   Downloaded gethostname v0.5.0
[INFO] [stderr]   Downloaded is-terminal v0.4.15
[INFO] [stderr]   Downloaded colored_json v4.1.0
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[INFO] [stderr]   Downloaded argh_shared v0.1.13
[INFO] [stderr]   Downloaded time-macros v0.2.19
[INFO] [stderr]   Downloaded simplecss v0.2.2
[INFO] [stderr]   Downloaded imagesize v0.13.0
[INFO] [stderr]   Downloaded system-deps v6.2.2
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[INFO] [stderr]   Downloaded built v0.7.6
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[INFO] [stderr]   Downloaded memmap2 v0.9.5
[INFO] [stderr]   Downloaded miniz_oxide v0.8.4
[INFO] [stderr]   Downloaded rgb v0.8.50
[INFO] [stderr]   Downloaded arbitrary v1.4.1
[INFO] [stderr]   Downloaded weezl v0.1.8
[INFO] [stderr]   Downloaded gif v0.13.1
[INFO] [stderr]   Downloaded term v0.7.0
[INFO] [stderr]   Downloaded av1-grain v0.2.3
[INFO] [stderr]   Downloaded prettytable-rs v0.10.0
[INFO] [stderr]   Downloaded filmreel v0.9.2
[INFO] [stderr]   Downloaded pest_meta v2.7.15
[INFO] [stderr]   Downloaded bytemuck v1.21.0
[INFO] [stderr]   Downloaded pest_derive v2.7.15
[INFO] [stderr]   Downloaded roxmltree v0.20.0
[INFO] [stderr]   Downloaded quinn v0.11.6
[INFO] [stderr]   Downloaded zune-jpeg v0.4.14
[INFO] [stderr]   Downloaded cfg-expr v0.15.8
[INFO] [stderr]   Downloaded rstest_macros v0.18.2
[INFO] [stderr]   Downloaded textwrap v0.16.1
[INFO] [stderr]   Downloaded image-webp v0.2.1
[INFO] [stderr]   Downloaded bitstream-io v2.6.0
[INFO] [stderr]   Downloaded resvg v0.43.0
[INFO] [stderr]   Downloaded anyhow v1.0.95
[INFO] [stderr]   Downloaded imgref v1.11.0
[INFO] [stderr]   Downloaded flate2 v1.0.35
[INFO] [stderr]   Downloaded cc v1.2.14
[INFO] [stderr]   Downloaded time v0.3.37
[INFO] [stderr]   Downloaded tokio-util v0.7.13
[INFO] [stderr]   Downloaded libm v0.2.11
[INFO] [stderr]   Downloaded crossterm v0.19.0
[INFO] [stderr]   Downloaded fontdb v0.21.0
[INFO] [stderr]   Downloaded libfuzzer-sys v0.4.9
[INFO] [stderr]   Downloaded kurbo v0.11.1
[INFO] [stderr]   Downloaded ntapi v0.3.7
[INFO] [stderr]   Downloaded pest v2.7.15
[INFO] [stderr]   Downloaded pulldown-cmark-mdcat v2.7.1
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[INFO] [stderr]   Downloaded pulldown-cmark v0.12.2
[INFO] [stderr]   Downloaded reqwest v0.12.12
[INFO] [stderr]   Downloaded minus v3.4.0
[INFO] [stderr]   Downloaded h2 v0.4.7
[INFO] [stderr]   Downloaded syn v2.0.98
[INFO] [stderr]   Downloaded winnow v0.7.2
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[INFO] [stderr]   Downloaded rustybuzz v0.18.0
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[INFO] [stderr]   Downloaded rustls v0.23.23
[INFO] [stderr]   Downloaded jpeg-decoder v0.3.1
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[INFO] [stderr]   Downloaded ring v0.17.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0
[INFO] running `Command { std: "docker" "start" "749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling once_cell v1.20.3
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling cc v1.2.14
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_json v1.0.138
[INFO] [stderr]    Compiling bytes v1.10.0
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling litemap v0.7.4
[INFO] [stderr]    Compiling bytemuck v1.21.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.4
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling ryu v1.0.19
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling icu_properties_data v1.5.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling flate2 v1.0.35
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling http v1.2.0
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling core_maths v0.1.1
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.0
[INFO] [stderr]    Compiling ring v0.17.9
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling utf16_iter v1.0.5
[INFO] [stderr]    Compiling built v0.7.6
[INFO] [stderr]    Compiling write16 v1.0.0
[INFO] [stderr]    Compiling httparse v1.10.0
[INFO] [stderr]    Compiling aligned-vec v0.5.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling time v0.3.37
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling v_frame v0.3.8
[INFO] [stderr]    Compiling onig_sys v69.8.1
[INFO] [stderr]    Compiling strict-num v0.1.1
[INFO] [stderr]    Compiling ttf-parser v0.24.1
[INFO] [stderr]    Compiling quick-xml v0.32.0
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling rustls v0.23.23
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling roxmltree v0.20.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling tinyvec v1.8.1
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling tiny-skia-path v0.11.4
[INFO] [stderr]    Compiling plist v1.7.0
[INFO] [stderr]    Compiling av1-grain v0.2.3
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling fontconfig-parser v0.5.7
[INFO] [stderr]    Compiling bincode v1.3.3
[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/1.99.0-beta.8-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 -C debug-assertions=off --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=b9fb66304707af5a -C extra-filename=-91b9933440a01813 --out-dir /opt/rustwide/target/release/deps -C strip=debuginfo -L dependency=/opt/rustwide/target/release/deps --extern proc_macro2=/opt/rustwide/target/release/deps/libproc_macro2-e4ef6f8af08b56b5.rmeta --extern quote=/opt/rustwide/target/release/deps/libquote-364eea7d0c387d7a.rmeta --extern unicode_ident=/opt/rustwide/target/release/deps/libunicode_ident-be9bcddeea817301.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" "749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0", kill_on_drop: false }`
[INFO] [stdout] 749849964f9317f4885fadf58c3b9a089f53a51b67a31c4da5e8c82b8f1e39d0
