[INFO] updating cached repository https://github.com/maralorn/tasktree
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a220096f9d396008541d42bedfd3208303d4eabf
[INFO] testing maralorn/tasktree against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaralorn%2Ftasktree" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maralorn/tasktree on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/maralorn/tasktree
[INFO] finished tweaking git repo https://github.com/maralorn/tasktree
[INFO] tweaked toml for git repo https://github.com/maralorn/tasktree written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/maralorn/tasktree already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fc03531f593270f23cf8b6ca1a7384b2b4f0f2c2551ce3b5119279fffa12cb69
[INFO] running `"docker" "start" "-a" "fc03531f593270f23cf8b6ca1a7384b2b4f0f2c2551ce3b5119279fffa12cb69"`
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling fragile v0.3.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling gtk v0.7.0
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling uuid v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling glib-sys v0.9.0
[INFO] [stderr]    Compiling gobject-sys v0.9.0
[INFO] [stderr]    Compiling gio-sys v0.9.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.0
[INFO] [stderr]    Compiling pango-sys v0.9.0
[INFO] [stderr]    Compiling atk-sys v0.9.0
[INFO] [stderr]    Compiling gdk-sys v0.9.0
[INFO] [stderr]    Compiling gtk-sys v0.9.0
[INFO] [stderr]    Compiling cairo-rs v0.7.1
[INFO] [stderr]    Compiling atk v0.7.0
[INFO] [stderr]    Compiling gio v0.7.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.7.0
[INFO] [stderr]    Compiling pango v0.7.0
[INFO] [stderr]    Compiling gdk v0.11.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling glib v0.8.2
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling task-hookrs v0.3.0
[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-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="v3_16"' --cfg 'feature="v3_18"' -C metadata=46ec74c79ae301e4 -C extra-filename=-46ec74c79ae301e4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atk=/opt/rustwide/target/debug/deps/libatk-9cacfebd67f5effd.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-c5180c3dc5cc8193.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-34d8e62e5023b782.rmeta --extern cairo_sys=/opt/rustwide/target/debug/deps/libcairo_sys-3412213f793d5008.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk-59e05ce3010d2482.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-d15b943c5e2c70ac.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-7bc3fa21b80b5791.rmeta --extern gdk_sys=/opt/rustwide/target/debug/deps/libgdk_sys-158930df54aa3ce6.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-649da328325a2ec5.rmeta --extern gio_sys=/opt/rustwide/target/debug/deps/libgio_sys-52ac9d09c68049ac.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-c1f342abe230a104.rmeta --extern glib_sys=/opt/rustwide/target/debug/deps/libglib_sys-2f5a7aa128525975.rmeta --extern gobject_sys=/opt/rustwide/target/debug/deps/libgobject_sys-46dfcefa74643d4f.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-aacc73cad9880bc1.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-81e71b56f2a8a8f3.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-c2725012b0cfd464.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-acb28b14f08178c5.rmeta --extern pango_sys=/opt/rustwide/target/debug/deps/libpango_sys-a044fb97438b9dfc.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "fc03531f593270f23cf8b6ca1a7384b2b4f0f2c2551ce3b5119279fffa12cb69"`
[INFO] running `"docker" "rm" "-f" "fc03531f593270f23cf8b6ca1a7384b2b4f0f2c2551ce3b5119279fffa12cb69"`
[INFO] [stdout] fc03531f593270f23cf8b6ca1a7384b2b4f0f2c2551ce3b5119279fffa12cb69