[INFO] cloning repository https://github.com/MikkelPaulson/refcell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MikkelPaulson/refcell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMikkelPaulson%2Frefcell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMikkelPaulson%2Frefcell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd9a404824d9d57f252bba9e2b781a3ade75cfbc
[INFO] testing MikkelPaulson/refcell against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMikkelPaulson%2Frefcell" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MikkelPaulson/refcell 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 git repo https://github.com/MikkelPaulson/refcell
[INFO] finished tweaking git repo https://github.com/MikkelPaulson/refcell
[INFO] tweaked toml for git repo https://github.com/MikkelPaulson/refcell written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/MikkelPaulson/refcell already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e8757cc937a7efe943271efa5a380ef12cc45595ab993c80bd3cd10608d4087f
[INFO] running `Command { std: "docker" "start" "-a" "e8757cc937a7efe943271efa5a380ef12cc45595ab993c80bd3cd10608d4087f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8757cc937a7efe943271efa5a380ef12cc45595ab993c80bd3cd10608d4087f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8757cc937a7efe943271efa5a380ef12cc45595ab993c80bd3cd10608d4087f", kill_on_drop: false }`
[INFO] [stdout] e8757cc937a7efe943271efa5a380ef12cc45595ab993c80bd3cd10608d4087f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ac0606002a2026d8f7f9b1b178d6e47a8ed12a8199b4ace1e3f5c832f9aeb937
[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" "ac0606002a2026d8f7f9b1b178d6e47a8ed12a8199b4ace1e3f5c832f9aeb937", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]    Compiling tinystr v0.3.4
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]    Compiling xi-unicode v0.2.1
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling unicode-segmentation v1.7.0
[INFO] [stderr]    Compiling float-cmp v0.5.3
[INFO] [stderr]    Compiling xmlwriter v0.1.0
[INFO] [stderr]    Compiling fluent-syntax v0.9.3
[INFO] [stderr]    Compiling rctree v0.3.3
[INFO] [stderr]    Compiling unicode-script v0.5.2
[INFO] [stderr]    Compiling unicode-vo v0.1.0
[INFO] [stderr]    Compiling smallvec v1.5.0
[INFO] [stderr]    Compiling glib-sys v0.9.1
[INFO] [stderr]    Compiling gobject-sys v0.9.1
[INFO] [stderr]    Compiling gio-sys v0.9.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[INFO] [stderr]    Compiling pango-sys v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling gdk-sys v0.9.1
[INFO] [stderr]    Compiling atk-sys v0.9.1
[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling standback v0.2.13
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling kurbo v0.6.3
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling data-url v0.1.0
[INFO] [stderr]    Compiling roxmltree v0.11.0
[INFO] [stderr]    Compiling svgtypes v0.5.0
[INFO] [stderr]    Compiling unic-langid-impl v0.9.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling simplecss v0.2.0
[INFO] [stderr]    Compiling simple_logger v1.11.0
[INFO] [stderr]    Compiling type-map v0.3.0
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling unic-langid v0.9.0
[INFO] [stderr]    Compiling piet v0.1.0
[INFO] [stderr]    Compiling fluent-langneg v0.13.0
[INFO] [stderr]    Compiling intl-memoizer v0.5.0
[INFO] [stderr]    Compiling intl_pluralrules v7.0.0
[INFO] [stderr]    Compiling freetype-sys v0.11.0
[INFO] [stderr]    Compiling harfbuzz-sys v0.4.1
[INFO] [stderr]    Compiling freetype v0.5.1
[INFO] [stderr]    Compiling harfbuzz_rs v1.2.0
[INFO] [stderr]    Compiling usvg v0.9.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling druid-derive v0.3.1
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling glib v0.9.3
[INFO] [stderr]    Compiling rental v0.5.5
[INFO] [stderr]    Compiling fluent-bundle v0.12.0
[INFO] [stderr]    Compiling piet-cairo v0.1.0
[INFO] [stderr]    Compiling piet-common v0.1.1
[INFO] [stderr]    Compiling druid-shell v0.6.0
[INFO] [stderr]    Compiling druid v0.6.0
[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-0.8.1/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="v3_16"' --cfg 'feature="v3_18"' --cfg 'feature="v3_20"' -C metadata=078e333422b26757 -C extra-filename=-078e333422b26757 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atk=/opt/rustwide/target/debug/deps/libatk-c2536139fa7018b6.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-117d41ac256572da.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-1d8a79c85887e683.rmeta --extern cairo_sys=/opt/rustwide/target/debug/deps/libcairo_sys-31d11b61d7095ab9.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk-3d332f2ab2084a58.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-9194e00685bae5dd.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-614047c3867f074b.rmeta --extern gdk_sys=/opt/rustwide/target/debug/deps/libgdk_sys-42a0149a028e5d28.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-cab209c60702cc21.rmeta --extern gio_sys=/opt/rustwide/target/debug/deps/libgio_sys-9f6703751428ca5b.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-e9c25ef2d3a998cd.rmeta --extern glib_sys=/opt/rustwide/target/debug/deps/libglib_sys-17056ccda8939e5b.rmeta --extern gobject_sys=/opt/rustwide/target/debug/deps/libgobject_sys-107c500884ee5e46.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-1d175a3b3847bb32.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-df981c5871754530.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-a34daa496b50db91.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-c44b818f5980742a.rmeta --extern pango_sys=/opt/rustwide/target/debug/deps/libpango_sys-73bdc87d0d83ab3e.rmeta --cap-lints allow --cap-lints=warn` (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" "ac0606002a2026d8f7f9b1b178d6e47a8ed12a8199b4ace1e3f5c832f9aeb937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0606002a2026d8f7f9b1b178d6e47a8ed12a8199b4ace1e3f5c832f9aeb937", kill_on_drop: false }`
[INFO] [stdout] ac0606002a2026d8f7f9b1b178d6e47a8ed12a8199b4ace1e3f5c832f9aeb937