[INFO] cloning repository rozaliev/snake
[INFO] running `"git" "clone" "--bare" "git://github.com/rozaliev/snake.git" "work/cache/sources/gh/rozaliev/snake"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/rozaliev/snake'...
[INFO] running `"git" "clone" "work/cache/sources/gh/rozaliev/snake" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/rozaliev/snake"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/rozaliev/snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rozaliev/snake" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/rozaliev/snake"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/rozaliev/snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5a4b9bbcd94c63b9ccc2e30fe6e5db9a4523667f
[INFO] sha for GitHub repo rozaliev/snake: 5a4b9bbcd94c63b9ccc2e30fe6e5db9a4523667f
[INFO] validating manifest of rozaliev/snake on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rozaliev/snake on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rozaliev/snake
[INFO] finished frobbing rozaliev/snake
[INFO] frobbed toml for rozaliev/snake written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/rozaliev/snake/Cargo.toml
[INFO] started frobbing rozaliev/snake
[INFO] finished frobbing rozaliev/snake
[INFO] frobbed toml for rozaliev/snake written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/rozaliev/snake/Cargo.toml
[INFO] crate rozaliev/snake already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Updating git repository `https://github.com/PistonDevelopers/rust-graphics.git`
[INFO] [stderr]     Updating git repository `https://github.com/gfx-rs/gfx-rs`
[INFO] [stderr] error: failed to load source for a dependency on `gl`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/bjz/gl-rs#398783d2
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to update submodule `deps/khronos-api`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   object not found - no match for id (31765e5b0d656812d4f700cbedaa09baf10a7c5a); class=Odb (9); code=NotFound (-3)
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed