[INFO] fetching crate nc_explorer 0.3.0...
[INFO] testing nc_explorer-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate nc_explorer 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate nc_explorer 0.3.0
[INFO] finished tweaking crates.io crate nc_explorer 0.3.0
[INFO] tweaked toml for crates.io crate nc_explorer 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nc_explorer 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 nc_explorer 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] 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] f3ef5b44bb9623e7fe311593cbb05b07a8ad48e2330b50cc2fb78cc772e1b813
[INFO] running `Command { std: "docker" "start" "-a" "f3ef5b44bb9623e7fe311593cbb05b07a8ad48e2330b50cc2fb78cc772e1b813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3ef5b44bb9623e7fe311593cbb05b07a8ad48e2330b50cc2fb78cc772e1b813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3ef5b44bb9623e7fe311593cbb05b07a8ad48e2330b50cc2fb78cc772e1b813", kill_on_drop: false }`
[INFO] [stdout] f3ef5b44bb9623e7fe311593cbb05b07a8ad48e2330b50cc2fb78cc772e1b813
[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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d170db1d265f5b9317382b1c4842b81c4c6f46f7ec28a8c8353fbcfef6bd9792
[INFO] running `Command { std: "docker" "start" "-a" "d170db1d265f5b9317382b1c4842b81c4c6f46f7ec28a8c8353fbcfef6bd9792", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.7
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling ttf-parser v0.18.1
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling owned_ttf_parser v0.18.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling wayland-commons v0.29.5
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.4
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.8
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling ab_glyph v0.2.20
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling calloop v0.9.3
[INFO] [stderr]    Compiling memmap2 v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling nohash-hasher v0.2.0
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.10
[INFO] [stderr]    Compiling winit v0.26.1
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling netcdf-sys v0.4.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.8
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling hdf5-src v0.8.1
[INFO] [stderr]    Compiling netcdf-src v0.3.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.6
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling gethostname v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling x11rb v0.9.0
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling webbrowser v0.7.1
[INFO] [stderr]    Compiling wayland-cursor v0.29.5
[INFO] [stderr]    Compiling wayland-egl v0.29.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.7
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stderr]    Compiling glow v0.11.2
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling netcdf v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.69
[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-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debug-assertions=on --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=c989563c7159f8fe -C extra-filename=-53edf79393d93e09 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6b971e9fe088811f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1e33dc27815d6fe3.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-800047746f0e6e0e.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" "d170db1d265f5b9317382b1c4842b81c4c6f46f7ec28a8c8353fbcfef6bd9792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d170db1d265f5b9317382b1c4842b81c4c6f46f7ec28a8c8353fbcfef6bd9792", kill_on_drop: false }`
[INFO] [stdout] d170db1d265f5b9317382b1c4842b81c4c6f46f7ec28a8c8353fbcfef6bd9792
