[INFO] cloning repository https://github.com/pop-os/cosmic-theme-editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pop-os/cosmic-theme-editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fcosmic-theme-editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fcosmic-theme-editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 024bd9b3e49685a0083d744bf823072b58cc4957
[INFO] testing pop-os/cosmic-theme-editor against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fcosmic-theme-editor" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pop-os/cosmic-theme-editor
[INFO] finished tweaking git repo https://github.com/pop-os/cosmic-theme-editor
[INFO] tweaked toml for git repo https://github.com/pop-os/cosmic-theme-editor written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pop-os/cosmic-theme-editor 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 git repo https://github.com/pop-os/cosmic-theme-editor 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9b187ea55f0cd8ecf2ffec12b1b414d1b8a0327debca39bebf257e9d6fc01641
[INFO] running `Command { std: "docker" "start" "-a" "9b187ea55f0cd8ecf2ffec12b1b414d1b8a0327debca39bebf257e9d6fc01641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b187ea55f0cd8ecf2ffec12b1b414d1b8a0327debca39bebf257e9d6fc01641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b187ea55f0cd8ecf2ffec12b1b414d1b8a0327debca39bebf257e9d6fc01641", kill_on_drop: false }`
[INFO] [stdout] 9b187ea55f0cd8ecf2ffec12b1b414d1b8a0327debca39bebf257e9d6fc01641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2426f563e1d9bd3ed09ea855275388db751b10f3131afdd06088bce2e83383d0
[INFO] running `Command { std: "docker" "start" "-a" "2426f563e1d9bd3ed09ea855275388db751b10f3131afdd06088bce2e83383d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling cfg-expr v0.10.2
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling gio v0.15.10
[INFO] [stderr]    Compiling phf_shared v0.9.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling nanorand v0.7.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling palette v0.6.0
[INFO] [stderr]    Compiling temp-dir v0.1.11
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling field-offset v0.3.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gettext-sys v0.21.3
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling mio v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling lebe v0.5.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling png v0.17.5
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling tiff v0.7.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bytemuck v1.9.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling notify v5.0.0-pre.14
[INFO] [stderr]    Compiling xdg v2.4.1
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling locale_config v0.3.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling cascade v1.0.0
[INFO] [stderr]    Compiling phf_generator v0.9.1
[INFO] [stderr]    Compiling gettext-rs v0.7.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling jpeg-decoder v0.2.4
[INFO] [stderr]    Compiling system-deps v6.0.2
[INFO] [stderr]    Compiling find-crate v0.6.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling phf_macros v0.9.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling relm4-macros v0.4.1 (https://github.com/AaronErhardt/Relm4?branch=new-approach#f8efd12f)
[INFO] [stderr]    Compiling palette_derive v0.6.0
[INFO] [stderr]    Compiling glib-sys v0.15.10
[INFO] [stderr]    Compiling gobject-sys v0.15.10
[INFO] [stderr]    Compiling gio-sys v0.15.10
[INFO] [stderr]    Compiling cairo-sys-rs v0.15.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.15.10
[INFO] [stderr]    Compiling pango-sys v0.15.10
[INFO] [stderr]    Compiling gdk4-sys v0.4.2
[INFO] [stderr]    Compiling graphene-sys v0.15.10
[INFO] [stderr]    Compiling gsk4-sys v0.4.2
[INFO] [stderr]    Compiling gtk4-sys v0.4.5
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling phf v0.9.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling pin-project v1.0.10
[INFO] [stderr]    Compiling flume v0.10.12
[INFO] [stderr]    Compiling glib-macros v0.15.10
[INFO] [stderr]    Compiling gtk4-macros v0.4.7
[INFO] [stderr]    Compiling exr v1.4.1
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling glib v0.15.10
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling image v0.24.1
[INFO] [stderr]    Compiling ron v0.7.0
[INFO] [stderr]    Compiling kmeans_colors v0.5.0 (https://github.com/okaneco/kmeans-colors#dc9ab131)
[INFO] [stderr]    Compiling cairo-rs v0.15.10
[INFO] [stderr]    Compiling pango v0.15.10
[INFO] [stderr]    Compiling graphene-rs v0.15.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.15.10
[INFO] [stderr]    Compiling gdk4 v0.4.7
[INFO] [stderr]    Compiling gsk4 v0.4.7
[INFO] [stderr]    Compiling gtk4 v0.4.7
[INFO] [stderr]    Compiling cosmic-theme v0.1.0 (https://github.com/pop-os/cosmic-theme#31425d89)
[INFO] [stderr] error: could not compile `gtk4` (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 gtk4 --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gtk4-0.4.7/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 debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("dox", "v4_2", "v4_4", "v4_6"))' -C metadata=c209cc1883bbe54f -C extra-filename=-29267fea534ae28a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-dde12b0d7d495b50.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-ea2f1c94e857c604.rmeta --extern field_offset=/opt/rustwide/target/debug/deps/libfield_offset-4983515ac7af62f8.rmeta --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-1ffe26710860cc8a.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-ae73a96dfcd9d37c.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk4-71081f11036dc475.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-074f05fcd131c3d7.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-2a76025093edb7b0.rmeta --extern graphene=/opt/rustwide/target/debug/deps/libgraphene-be82d8954826a092.rmeta --extern gsk=/opt/rustwide/target/debug/deps/libgsk4-cacd370311dad45a.rmeta --extern gtk4_macros=/opt/rustwide/target/debug/deps/libgtk4_macros-7d792c727917daed.so --extern ffi=/opt/rustwide/target/debug/deps/libgtk4_sys-9c69e6070c9ffa09.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-313ad263f75daa9d.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-bfb007964ce6ca05.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-5e1c648e931a42d7.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "2426f563e1d9bd3ed09ea855275388db751b10f3131afdd06088bce2e83383d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2426f563e1d9bd3ed09ea855275388db751b10f3131afdd06088bce2e83383d0", kill_on_drop: false }`
[INFO] [stdout] 2426f563e1d9bd3ed09ea855275388db751b10f3131afdd06088bce2e83383d0