[INFO] updating cached repository bfops/hello-mandelbrot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bfops/hello-mandelbrot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bfops/hello-mandelbrot" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bfops/hello-mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bfops/hello-mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bfops/hello-mandelbrot" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bfops/hello-mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bfops/hello-mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7739dbc6e089b349cb7c5430baea84a84d20514a
[INFO] sha for GitHub repo bfops/hello-mandelbrot: 7739dbc6e089b349cb7c5430baea84a84d20514a
[INFO] validating manifest of bfops/hello-mandelbrot on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bfops/hello-mandelbrot on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bfops/hello-mandelbrot
[INFO] finished frobbing bfops/hello-mandelbrot
[INFO] frobbed toml for bfops/hello-mandelbrot written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bfops/hello-mandelbrot/Cargo.toml
[INFO] started frobbing bfops/hello-mandelbrot
[INFO] finished frobbing bfops/hello-mandelbrot
[INFO] frobbed toml for bfops/hello-mandelbrot written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bfops/hello-mandelbrot/Cargo.toml
[INFO] crate bfops/hello-mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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#0154e84b
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to update submodule `khronos_api/api`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   object not found - no match for id (035f76ad3fe49cd928f073673f80e8247425b5c7); 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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed