[INFO] cloning repository https://github.com/MFattakhov/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MFattakhov/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMFattakhov%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMFattakhov%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b3acc8e8606e55d586a49046dc21dd63578d2f5
[INFO] testing MFattakhov/mandelbrot against 1.98.0-beta.1 for beta-1.98-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMFattakhov%2Fmandelbrot" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MFattakhov/mandelbrot
[INFO] finished tweaking git repo https://github.com/MFattakhov/mandelbrot
[INFO] tweaked toml for git repo https://github.com/MFattakhov/mandelbrot written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MFattakhov/mandelbrot on toolchain 1.98.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MFattakhov/mandelbrot 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" "+1.98.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2
[INFO] running `Command { std: "docker" "start" "f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2", 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" "f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2", 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" "f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling winnow v0.5.35
[INFO] [stderr]    Compiling target-lexicon v0.12.13
[INFO] [stderr]    Compiling smallvec v1.13.1
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling pkg-config v0.3.29
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling gio v0.18.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling cfg-expr v0.15.6
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]    Compiling weezl v0.1.8
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling flume v0.11.0
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling fdeflate v0.3.4
[INFO] [stderr]    Compiling lebe v0.5.2
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling half v2.2.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling bytemuck v1.14.1
[INFO] [stderr]    Compiling field-offset v0.3.6
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling gif v0.12.0
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling rayon v1.8.1
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling exr v1.71.0
[INFO] [stderr]    Compiling png v0.17.11
[INFO] [stderr]    Compiling itertools v0.12.0
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling serde_spanned v0.6.5
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling toml_edit v0.20.2
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling indicatif v0.17.7
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tiff v0.9.1
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling toml v0.8.2
[INFO] [stderr]    Compiling proc-macro-crate v2.0.1
[INFO] [stderr]    Compiling image v0.24.8
[INFO] [stderr]    Compiling gtk4-macros v0.7.2
[INFO] [stderr]    Compiling system-deps v6.2.0
[INFO] [stderr]    Compiling glib-macros v0.18.5
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling glib-sys v0.18.1
[INFO] [stderr]    Compiling gobject-sys v0.18.0
[INFO] [stderr]    Compiling gio-sys v0.18.1
[INFO] [stderr]    Compiling pango-sys v0.18.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.18.2
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.18.0
[INFO] [stderr]    Compiling gdk4-sys v0.7.2
[INFO] [stderr]    Compiling graphene-sys v0.18.1
[INFO] [stderr]    Compiling gsk4-sys v0.7.3
[INFO] [stderr]    Compiling gtk4-sys v0.7.3
[INFO] [stderr]    Compiling glib v0.18.5
[INFO] [stderr]    Compiling cairo-rs v0.18.5
[INFO] [stderr]    Compiling graphene-rs v0.18.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.18.5
[INFO] [stderr]    Compiling pango v0.18.3
[INFO] [stderr]    Compiling gdk4 v0.7.3
[INFO] [stderr]    Compiling gsk4 v0.7.3
[INFO] [stderr]    Compiling gtk4 v0.7.3
[INFO] [stderr]    Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `parse_pair` is never used
[INFO] [stdout]   --> src/render.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub(crate) fn parse_pair<T: FromStr>(s: &str, sep: char) -> Option<(T, T)> {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_complex` is never used
[INFO] [stdout]   --> src/render.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) fn parse_complex(s: &str) -> Option<Complex> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_image` is never used
[INFO] [stdout]   --> src/render.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub(crate) fn write_image(
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/1.98.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name gtk4 --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gtk4-0.7.3/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 --cfg 'feature="v4_10"' --cfg 'feature="v4_12"' --cfg 'feature="v4_2"' --cfg 'feature="v4_4"' --cfg 'feature="v4_6"' --cfg 'feature="v4_8"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("blueprint", "gnome_42", "gnome_43", "gnome_44", "gnome_45", "unsafe-assume-initialized", "v4_10", "v4_12", "v4_14", "v4_2", "v4_4", "v4_6", "v4_8", "xml_validation"))' -C metadata=2e2bad51d310c2fb -C extra-filename=-3b5dafd8c7eb24ca --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cairo=/opt/rustwide/target/debug/deps/libcairo-e832e1fe3b5c68ff.rmeta --extern field_offset=/opt/rustwide/target/debug/deps/libfield_offset-7951387b23301598.rmeta --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-c31adf238d585519.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-a230aea4cb7f44c2.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk4-c66e4d8df8106b9b.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-7008844e78cd7d01.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-1b9178433ac3ba4c.rmeta --extern graphene=/opt/rustwide/target/debug/deps/libgraphene-38761827c6ce4413.rmeta --extern gsk=/opt/rustwide/target/debug/deps/libgsk4-a6954694ebdcbf52.rmeta --extern gtk4_macros=/opt/rustwide/target/debug/deps/libgtk4_macros-9b9d260d6dd1c462.so --extern ffi=/opt/rustwide/target/debug/deps/libgtk4_sys-c68a08cc24ed6e3c.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-5ba1f0eb803c148c.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-dc8f164cfa86b5c0.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2", kill_on_drop: false }`
[INFO] [stdout] f366cdfcaaccc8b34f571d1d175cc613368818742141311028e371594ac854a2
