[INFO] fetching crate massdriver_core 0.0.1...
[INFO] testing massdriver_core-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate massdriver_core 0.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate massdriver_core 0.0.1 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 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-1/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 561e27e2da2e24eadf73ca71a67987efb562c9b1ab07e583fe1b76c9338e08bb
[INFO] running `Command { std: "docker" "start" "-a" "561e27e2da2e24eadf73ca71a67987efb562c9b1ab07e583fe1b76c9338e08bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "561e27e2da2e24eadf73ca71a67987efb562c9b1ab07e583fe1b76c9338e08bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561e27e2da2e24eadf73ca71a67987efb562c9b1ab07e583fe1b76c9338e08bb", kill_on_drop: false }`
[INFO] [stdout] 561e27e2da2e24eadf73ca71a67987efb562c9b1ab07e583fe1b76c9338e08bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0d68377d51f9556fcfd39a5688238052b74b81946ceceb7e832283b6ebee81fd
[INFO] running `Command { std: "docker" "start" "-a" "0d68377d51f9556fcfd39a5688238052b74b81946ceceb7e832283b6ebee81fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]    Compiling pango v0.8.0
[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 cairo-sys-rs v0.9.2
[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-channel v0.3.4
[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=62acf0c63da3ae30 -C extra-filename=-62acf0c63da3ae30 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atk=/opt/rustwide/target/debug/deps/libatk-dfa226a3d69ade4a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-117d41ac256572da.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-5968af2147b5e1e9.rmeta --extern cairo_sys=/opt/rustwide/target/debug/deps/libcairo_sys-5207d5f01a48886b.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk-02465ebe5efa6be9.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-9aaccce8614033f1.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-97416cceba67bdfa.rmeta --extern gdk_sys=/opt/rustwide/target/debug/deps/libgdk_sys-c55bc43c6f7347ae.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-9c297a1877f30f7a.rmeta --extern gio_sys=/opt/rustwide/target/debug/deps/libgio_sys-92dcc8c1e1eafcb1.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-6638c91a22a48f34.rmeta --extern glib_sys=/opt/rustwide/target/debug/deps/libglib_sys-5db020dd64a6b736.rmeta --extern gobject_sys=/opt/rustwide/target/debug/deps/libgobject_sys-287f4020ba74a955.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-f80fff9d37192c62.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-df981c5871754530.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-69ffc8920c6f1f45.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-8cde84e3d34365b2.rmeta --extern pango_sys=/opt/rustwide/target/debug/deps/libpango_sys-befd2f10c604c62a.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "0d68377d51f9556fcfd39a5688238052b74b81946ceceb7e832283b6ebee81fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d68377d51f9556fcfd39a5688238052b74b81946ceceb7e832283b6ebee81fd", kill_on_drop: false }`
[INFO] [stdout] 0d68377d51f9556fcfd39a5688238052b74b81946ceceb7e832283b6ebee81fd