[INFO] updating cached repository xd009642/clock-tree-solver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xd009642/clock-tree-solver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xd009642/clock-tree-solver" "work/ex/beta-1.38-1/sources/1.37.0/gh/xd009642/clock-tree-solver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/xd009642/clock-tree-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xd009642/clock-tree-solver" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xd009642/clock-tree-solver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xd009642/clock-tree-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 87105b1c5f251fee5c0cdf8c3256b3bf8e500f56
[INFO] sha for GitHub repo xd009642/clock-tree-solver: 87105b1c5f251fee5c0cdf8c3256b3bf8e500f56
[INFO] validating manifest of xd009642/clock-tree-solver on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xd009642/clock-tree-solver on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xd009642/clock-tree-solver
[INFO] finished frobbing xd009642/clock-tree-solver
[INFO] frobbed toml for xd009642/clock-tree-solver written to work/ex/beta-1.38-1/sources/1.37.0/gh/xd009642/clock-tree-solver/Cargo.toml
[INFO] started frobbing xd009642/clock-tree-solver
[INFO] finished frobbing xd009642/clock-tree-solver
[INFO] frobbed toml for xd009642/clock-tree-solver written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xd009642/clock-tree-solver/Cargo.toml
[INFO] crate xd009642/clock-tree-solver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing xd009642/clock-tree-solver against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xd009642/clock-tree-solver:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 724007937b5f1b98eb79ca99553dbb2ffbeb8f862044972b16ff41e5a884007e
[INFO] running `"docker" "start" "-a" "724007937b5f1b98eb79ca99553dbb2ffbeb8f862044972b16ff41e5a884007e"`
[INFO] [stderr]    Compiling gio v0.5.1
[INFO] [stderr]    Compiling cairo-rs v0.5.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.5.0
[INFO] [stderr]    Compiling gdk v0.9.0
[INFO] [stderr]    Compiling gtk v0.5.0
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]    Compiling glib-sys v0.7.0
[INFO] [stderr]    Compiling gobject-sys v0.7.0
[INFO] [stderr]    Compiling gio-sys v0.7.0
[INFO] [stderr]    Compiling pango-sys v0.7.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.7.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.7.0
[INFO] [stderr]    Compiling gdk-sys v0.7.0
[INFO] [stderr]    Compiling atk-sys v0.7.0
[INFO] [stderr]    Compiling gtk-sys v0.7.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling glib v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.81
[INFO] [stderr]    Compiling pango v0.5.0
[INFO] [stderr]    Compiling uom v0.20.1
[INFO] [stderr]    Compiling relm-gen-widget v0.15.0
[INFO] [stderr]    Compiling relm-derive-common v0.15.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling relm-derive v0.15.0
[INFO] [stderr]    Compiling relm-core v0.15.0
[INFO] [stderr]    Compiling relm-state v0.15.0
[INFO] [stderr]    Compiling relm v0.15.0
[INFO] [stderr]    Compiling clock-tree-solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Direction`
[INFO] [stderr]  --> src/graphics.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use petgraph::{Direction, graph::NodeIndex};
[INFO] [stderr]   |                ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/graphics.rs:42:37
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn render(&self, ctx: &Context, x: f64, y: f64, width: f64, height: f64) {
[INFO] [stderr]    |                                     ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/graphics.rs:42:45
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn render(&self, ctx: &Context, x: f64, y: f64, width: f64, height: f64) {
[INFO] [stderr]    |                                             ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[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/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gtk-0.5.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=1f59680461b9b7e5 -C extra-filename=-1f59680461b9b7e5 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern bitflags=/opt/crater/target/debug/deps/libbitflags-67998902f09e32c1.rmeta --extern cairo=/opt/crater/target/debug/deps/libcairo-3550e40ad1a683f7.rmeta --extern cairo_sys=/opt/crater/target/debug/deps/libcairo_sys-153513ac8cffae50.rmeta --extern gdk=/opt/crater/target/debug/deps/libgdk-3696fc811e11427b.rmeta --extern gdk_pixbuf=/opt/crater/target/debug/deps/libgdk_pixbuf-6908ac09fa47e4a0.rmeta --extern gdk_pixbuf_sys=/opt/crater/target/debug/deps/libgdk_pixbuf_sys-f8b70daee2a4c5f0.rmeta --extern gdk_sys=/opt/crater/target/debug/deps/libgdk_sys-a368110beca9b30a.rmeta --extern gio=/opt/crater/target/debug/deps/libgio-6a6962b3a1b8befd.rmeta --extern gio_sys=/opt/crater/target/debug/deps/libgio_sys-ff869fe2b4adc73d.rmeta --extern glib=/opt/crater/target/debug/deps/libglib-be7fd7870d9a74ba.rmeta --extern glib_sys=/opt/crater/target/debug/deps/libglib_sys-d732df80ca2498cf.rmeta --extern gobject_sys=/opt/crater/target/debug/deps/libgobject_sys-8c36a33b2dbfa292.rmeta --extern gtk_sys=/opt/crater/target/debug/deps/libgtk_sys-1053f586126acb8d.rmeta --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-df8b3d370f96c908.rmeta --extern libc=/opt/crater/target/debug/deps/liblibc-c1b722c953c59030.rmeta --extern pango=/opt/crater/target/debug/deps/libpango-67ce2340552b69e1.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "724007937b5f1b98eb79ca99553dbb2ffbeb8f862044972b16ff41e5a884007e"`
[INFO] running `"docker" "rm" "-f" "724007937b5f1b98eb79ca99553dbb2ffbeb8f862044972b16ff41e5a884007e"`
[INFO] [stdout] 724007937b5f1b98eb79ca99553dbb2ffbeb8f862044972b16ff41e5a884007e