[INFO] updating cached repository johshoff/mandel
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/johshoff/mandel
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/johshoff/mandel" "work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/johshoff/mandel"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/johshoff/mandel'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/johshoff/mandel" "work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/johshoff/mandel"`
[INFO] [stderr] Cloning into 'work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/johshoff/mandel'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49d517686b279afa96cfd215ccf69df11e0d3e50
[INFO] sha for GitHub repo johshoff/mandel: 49d517686b279afa96cfd215ccf69df11e0d3e50
[INFO] validating manifest of johshoff/mandel on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of johshoff/mandel on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing johshoff/mandel
[INFO] finished frobbing johshoff/mandel
[INFO] frobbed toml for johshoff/mandel written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/gh/johshoff/mandel/Cargo.toml
[INFO] started frobbing johshoff/mandel
[INFO] finished frobbing johshoff/mandel
[INFO] frobbed toml for johshoff/mandel written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/gh/johshoff/mandel/Cargo.toml
[INFO] crate johshoff/mandel has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-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#6cd7f179
[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 (fda48999553410a8f8b39fa7761ea291411c1793); 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" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed