[INFO] fetching crate webkit2gtk-webextension 0.10.0...
[INFO] testing webkit2gtk-webextension-0.10.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate webkit2gtk-webextension 0.10.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate webkit2gtk-webextension 0.10.0 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 webkit2gtk-webextension 0.10.0
[INFO] finished tweaking crates.io crate webkit2gtk-webextension 0.10.0
[INFO] tweaked toml for crates.io crate webkit2gtk-webextension 0.10.0 written to /workspace/builds/worker-14/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 6ec9d1a2a42c8dfa5cb299071287b88f10dbbd41804ce471abb633ce08363729
[INFO] running `Command { std: "docker" "start" "-a" "6ec9d1a2a42c8dfa5cb299071287b88f10dbbd41804ce471abb633ce08363729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ec9d1a2a42c8dfa5cb299071287b88f10dbbd41804ce471abb633ce08363729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec9d1a2a42c8dfa5cb299071287b88f10dbbd41804ce471abb633ce08363729", kill_on_drop: false }`
[INFO] [stdout] 6ec9d1a2a42c8dfa5cb299071287b88f10dbbd41804ce471abb633ce08363729
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] b76f89dd0bd25773a129d479c8d275a9581e5535cc3b82180fa6f6eee619a9d5
[INFO] running `Command { std: "docker" "start" "-a" "b76f89dd0bd25773a129d479c8d275a9581e5535cc3b82180fa6f6eee619a9d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-io v0.3.17
[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 pango v0.9.1
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling webkit2gtk-webextension-sys v0.9.0
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling javascriptcore-rs-sys v0.2.0
[INFO] [stderr]    Compiling futures-channel v0.3.17
[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 pango-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs 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 soup-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 webkit2gtk-webextension v0.10.0 (/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 -C metadata=8049a1c494874e52 -C extra-filename=-8049a1c494874e52 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atk=/opt/rustwide/target/debug/deps/libatk-91707e24441c4fd0.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-f947290fec4feb2c.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-f5a434a2b46b250e.rmeta --extern cairo_sys=/opt/rustwide/target/debug/deps/libcairo_sys-8aa611d7c937b7cc.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk-e4a5f1c47d7c3351.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-b80ee3c23d2af782.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-53dee98b5e810b97.rmeta --extern gdk_sys=/opt/rustwide/target/debug/deps/libgdk_sys-13007192b89d8abe.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-82f95b6af39fc312.rmeta --extern gio_sys=/opt/rustwide/target/debug/deps/libgio_sys-9231c49e18bdfd82.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-940b2332fe7db259.rmeta --extern glib_sys=/opt/rustwide/target/debug/deps/libglib_sys-070dfedb1344c98d.rmeta --extern gobject_sys=/opt/rustwide/target/debug/deps/libgobject_sys-77c0c4e0df0ee343.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-3b266a4886464513.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-c907dcd449da59bc.rmeta --extern pango_sys=/opt/rustwide/target/debug/deps/libpango_sys-488751e38b475008.rmeta --cap-lints allow --cap-lints=warn --cfg 'gdk_backend="x11"' --cfg 'gdk_backend="broadway"' --cfg 'gdk_backend="wayland"'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b76f89dd0bd25773a129d479c8d275a9581e5535cc3b82180fa6f6eee619a9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b76f89dd0bd25773a129d479c8d275a9581e5535cc3b82180fa6f6eee619a9d5", kill_on_drop: false }`
[INFO] [stdout] b76f89dd0bd25773a129d479c8d275a9581e5535cc3b82180fa6f6eee619a9d5