[INFO] fetching crate vgtk 0.3.0...
[INFO] testing vgtk-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate vgtk 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate vgtk 0.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c19cd892e055ba70a5e3eb05dfb4db147c2f0446bad3eab08a77652d0baf3b61
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c19cd892e055ba70a5e3eb05dfb4db147c2f0446bad3eab08a77652d0baf3b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c19cd892e055ba70a5e3eb05dfb4db147c2f0446bad3eab08a77652d0baf3b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19cd892e055ba70a5e3eb05dfb4db147c2f0446bad3eab08a77652d0baf3b61", kill_on_drop: false }`
[INFO] [stdout] c19cd892e055ba70a5e3eb05dfb4db147c2f0446bad3eab08a77652d0baf3b61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29e6e7a29c001efa859ef3bb939939a2fe006114caddaa7c1bd6e8eaf316e6a4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "29e6e7a29c001efa859ef3bb939939a2fe006114caddaa7c1bd6e8eaf316e6a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustdoc-stripper v0.1.16
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling pico-args v0.3.4
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling lalrpop-util v0.19.3
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling gtk-rs-lgpl-docs v0.1.18
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling lalrpop v0.19.3
[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 proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[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 gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling glib v0.10.3
[INFO] [stderr]    Compiling futures v0.3.8
[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=b320ffba0524a495 -C extra-filename=-b320ffba0524a495 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atk=/opt/rustwide/target/debug/deps/libatk-d458f6e4eb8da7f1.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-de31228f2c0549ed.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-ffe4422370fce1a1.rmeta --extern cairo_sys=/opt/rustwide/target/debug/deps/libcairo_sys-b773a630461ce848.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk-b1c602b09d34195f.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-ee201ae99eeb9f8e.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-7e62a25aa9c1653f.rmeta --extern gdk_sys=/opt/rustwide/target/debug/deps/libgdk_sys-4236a10975eb0a27.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-01be66ed2161ec9a.rmeta --extern gio_sys=/opt/rustwide/target/debug/deps/libgio_sys-68cd07120de34e0f.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-8305713d54749509.rmeta --extern glib_sys=/opt/rustwide/target/debug/deps/libglib_sys-36d5744533be9e10.rmeta --extern gobject_sys=/opt/rustwide/target/debug/deps/libgobject_sys-7ab89eae624fd23a.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-195648ec6391146f.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-e0846f52673851a4.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-835dc9dc28e7c407.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-c3969da650f3d7b0.rmeta --extern pango_sys=/opt/rustwide/target/debug/deps/libpango_sys-3cb2d36c9fcbba2f.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" "29e6e7a29c001efa859ef3bb939939a2fe006114caddaa7c1bd6e8eaf316e6a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29e6e7a29c001efa859ef3bb939939a2fe006114caddaa7c1bd6e8eaf316e6a4", kill_on_drop: false }`
[INFO] [stdout] 29e6e7a29c001efa859ef3bb939939a2fe006114caddaa7c1bd6e8eaf316e6a4