[INFO] fetching crate massdriver_core 0.0.1...
[INFO] testing massdriver_core-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate massdriver_core 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate massdriver_core 0.0.1 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 massdriver_core 0.0.1
[INFO] finished tweaking crates.io crate massdriver_core 0.0.1
[INFO] tweaked toml for crates.io crate massdriver_core 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate massdriver_core 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19015170fd69298838bdbbbab914962afa9de7322a32027954d675bade1e7464
[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" "19015170fd69298838bdbbbab914962afa9de7322a32027954d675bade1e7464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19015170fd69298838bdbbbab914962afa9de7322a32027954d675bade1e7464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19015170fd69298838bdbbbab914962afa9de7322a32027954d675bade1e7464", kill_on_drop: false }`
[INFO] [stdout] 19015170fd69298838bdbbbab914962afa9de7322a32027954d675bade1e7464
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfcb8e17604f1367776d8c75871ef8bee150dce9b2b34eb319d351ac877382e6
[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" "cfcb8e17604f1367776d8c75871ef8bee150dce9b2b34eb319d351ac877382e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]    Compiling gtk v0.8.1
[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 pango-sys v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[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-channel v0.3.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling glib v0.9.3
[INFO] [stderr]    Compiling massdriver_core v0.0.1 (/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-0.8.1/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"' -C metadata=0c767dba3cbfad66 -C extra-filename=-0c767dba3cbfad66 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atk=/opt/rustwide/target/debug/deps/libatk-eb1e832ede18e99a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-de31228f2c0549ed.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-69a6ecbdef333aef.rmeta --extern cairo_sys=/opt/rustwide/target/debug/deps/libcairo_sys-738d571a641904bf.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk-5836da5639fca0b6.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-10d27e29622a2dd9.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-097e76012b2e72ff.rmeta --extern gdk_sys=/opt/rustwide/target/debug/deps/libgdk_sys-a3582a696f07ca04.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-73fee02f1a7bbd35.rmeta --extern gio_sys=/opt/rustwide/target/debug/deps/libgio_sys-29fa19ff5255a2ab.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-922348070aea6dae.rmeta --extern glib_sys=/opt/rustwide/target/debug/deps/libglib_sys-84cee147cdc53c26.rmeta --extern gobject_sys=/opt/rustwide/target/debug/deps/libgobject_sys-a5cf9cf3ae8b9c9e.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-0a7f8aa9156c7d3e.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7895c92c6d278491.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-d7093660885ad222.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-99fe387e6e12c549.rmeta --extern pango_sys=/opt/rustwide/target/debug/deps/libpango_sys-de80ef6c5537eb44.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "cfcb8e17604f1367776d8c75871ef8bee150dce9b2b34eb319d351ac877382e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfcb8e17604f1367776d8c75871ef8bee150dce9b2b34eb319d351ac877382e6", kill_on_drop: false }`
[INFO] [stdout] cfcb8e17604f1367776d8c75871ef8bee150dce9b2b34eb319d351ac877382e6