[INFO] updating cached repository flying-sheep/pest-bug
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/flying-sheep/pest-bug
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/flying-sheep/pest-bug" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/flying-sheep/pest-bug"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/flying-sheep/pest-bug'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/flying-sheep/pest-bug" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/flying-sheep/pest-bug"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/flying-sheep/pest-bug'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c10d8249712b85d17466e17ca507ab56c2775274
[INFO] sha for GitHub repo flying-sheep/pest-bug: c10d8249712b85d17466e17ca507ab56c2775274
[INFO] validating manifest of flying-sheep/pest-bug on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of flying-sheep/pest-bug on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing flying-sheep/pest-bug
[INFO] finished frobbing flying-sheep/pest-bug
[INFO] frobbed toml for flying-sheep/pest-bug written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/flying-sheep/pest-bug/Cargo.toml
[INFO] started frobbing flying-sheep/pest-bug
[INFO] finished frobbing flying-sheep/pest-bug
[INFO] frobbed toml for flying-sheep/pest-bug written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/flying-sheep/pest-bug/Cargo.toml
[INFO] crate flying-sheep/pest-bug already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/flying-sheep/pest`
[INFO] [stderr] error: failed to load source for a dependency on `pest`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/flying-sheep/pest?branch=peek-slice#fddef81c
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   revspec 'fddef81c924b8dcf98b6b71722d02049ed62a02b' not found; class=Reference (4); code=NotFound (-3)
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed