[INFO] updating cached repository nstone8/buglets
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nstone8/buglets
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nstone8/buglets" "work/ex/beta-1.37-6/sources/1.36.0/gh/nstone8/buglets"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nstone8/buglets'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nstone8/buglets" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nstone8/buglets"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nstone8/buglets'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f436ee80ef2b924fa8353037db9aef23dd41f534
[INFO] sha for GitHub repo nstone8/buglets: f436ee80ef2b924fa8353037db9aef23dd41f534
[INFO] validating manifest of nstone8/buglets on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nstone8/buglets on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nstone8/buglets
[INFO] finished frobbing nstone8/buglets
[INFO] frobbed toml for nstone8/buglets written to work/ex/beta-1.37-6/sources/1.36.0/gh/nstone8/buglets/Cargo.toml
[INFO] started frobbing nstone8/buglets
[INFO] finished frobbing nstone8/buglets
[INFO] frobbed toml for nstone8/buglets written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nstone8/buglets/Cargo.toml
[INFO] crate nstone8/buglets already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nstone8/buglets against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nstone8/buglets:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] be3e16daae995772786b92c2c65c32144f5c229f3c84cb4ab0b6a32e9c08c59d
[INFO] running `"docker" "start" "-a" "be3e16daae995772786b92c2c65c32144f5c229f3c84cb4ab0b6a32e9c08c59d"`
[INFO] [stderr]    Compiling gdk-pixbuf v0.2.0
[INFO] [stderr]    Compiling gio v0.2.0
[INFO] [stderr]    Compiling cairo-rs v0.2.0
[INFO] [stderr]    Compiling c_vec v1.2.1
[INFO] [stderr]    Compiling gdk v0.6.0
[INFO] [stderr]    Compiling gtk v0.2.0
[INFO] [stderr]    Compiling glib-sys v0.4.0
[INFO] [stderr]    Compiling gobject-sys v0.4.0
[INFO] [stderr]    Compiling gio-sys v0.4.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.4.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.4.0
[INFO] [stderr]    Compiling pango-sys v0.4.0
[INFO] [stderr]    Compiling gdk-sys v0.4.0
[INFO] [stderr]    Compiling atk-sys v0.4.0
[INFO] [stderr]    Compiling gtk-sys v0.4.0
[INFO] [stderr]    Compiling glib v0.3.1
[INFO] [stderr]    Compiling pango v0.2.0
[INFO] [stderr] error: Could not compile `gtk`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "be3e16daae995772786b92c2c65c32144f5c229f3c84cb4ab0b6a32e9c08c59d"`
[INFO] running `"docker" "rm" "-f" "be3e16daae995772786b92c2c65c32144f5c229f3c84cb4ab0b6a32e9c08c59d"`
[INFO] [stdout] be3e16daae995772786b92c2c65c32144f5c229f3c84cb4ab0b6a32e9c08c59d