[INFO] fetching crate vgtk 0.3.0...
[INFO] testing vgtk-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate vgtk 0.3.0 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate vgtk 0.3.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vgtk 0.3.0
[INFO] finished tweaking crates.io crate vgtk 0.3.0
[INFO] tweaked toml for crates.io crate vgtk 0.3.0 written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9438f5b19a74d98f3172e91db8723b32a0069e1a9d57b505bc7bd7795e9c042c
[INFO] running `Command { std: "docker" "start" "-a" "9438f5b19a74d98f3172e91db8723b32a0069e1a9d57b505bc7bd7795e9c042c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9438f5b19a74d98f3172e91db8723b32a0069e1a9d57b505bc7bd7795e9c042c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9438f5b19a74d98f3172e91db8723b32a0069e1a9d57b505bc7bd7795e9c042c", kill_on_drop: false }`
[INFO] [stdout] 9438f5b19a74d98f3172e91db8723b32a0069e1a9d57b505bc7bd7795e9c042c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 775f35c86d7a22c712e72340c7bb32f5d0e83ffaf43087d1a9c51a423ac1c44c
[INFO] running `Command { std: "docker" "start" "-a" "775f35c86d7a22c712e72340c7bb32f5d0e83ffaf43087d1a9c51a423ac1c44c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling rustdoc-stripper v0.1.18
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling lalrpop-util v0.19.6
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling gtk-rs-lgpl-docs v0.1.18
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling lalrpop v0.19.6
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling glib v0.10.3
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling vgtk-macros v0.3.0
[INFO] [stderr]    Compiling vgtk v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `gtk`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gtk /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gtk-0.9.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="embed-lgpl-docs"' --cfg 'feature="gtk-rs-lgpl-docs"' --cfg 'feature="v3_16"' --cfg 'feature="v3_18"' --cfg 'feature="v3_20"' -C metadata=da9527ef13b98e0b -C extra-filename=-da9527ef13b98e0b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atk=/opt/rustwide/target/debug/deps/libatk-912c4a2f18579d4b.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-f947290fec4feb2c.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-6d43801af49be28c.rmeta --extern cairo_sys=/opt/rustwide/target/debug/deps/libcairo_sys-7a93f33cad07be08.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk-d1b9d6a0b716af8e.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-ebb4dfea423d3624.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-6231ed0ab8fc0185.rmeta --extern gdk_sys=/opt/rustwide/target/debug/deps/libgdk_sys-8d1a13db032c7d02.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-1519789b0cb4a425.rmeta --extern gio_sys=/opt/rustwide/target/debug/deps/libgio_sys-25a5a1c335008f7c.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-b067823683b6ff9c.rmeta --extern glib_sys=/opt/rustwide/target/debug/deps/libglib_sys-07c1f3995b384bd3.rmeta --extern gobject_sys=/opt/rustwide/target/debug/deps/libgobject_sys-d8f7bb261986c1f8.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-bc301eddaddeb74d.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-7085dace614ae946.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-9fffd75946fb8778.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-f2cff965b0331484.rmeta --extern pango_sys=/opt/rustwide/target/debug/deps/libpango_sys-8c2961dd8c00ee1f.rmeta --cap-lints allow --cap-lints=warn --cfg 'gdk_backend="x11"' --cfg 'gdk_backend="broadway"' --cfg 'gdk_backend="wayland"'` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "775f35c86d7a22c712e72340c7bb32f5d0e83ffaf43087d1a9c51a423ac1c44c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "775f35c86d7a22c712e72340c7bb32f5d0e83ffaf43087d1a9c51a423ac1c44c", kill_on_drop: false }`
[INFO] [stdout] 775f35c86d7a22c712e72340c7bb32f5d0e83ffaf43087d1a9c51a423ac1c44c