[INFO] updating cached repository https://github.com/mozilla-services/syncstorage-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/mozilla-services/syncstorage-rs
[INFO] [stderr]  - [deleted]             (none)     -> feat/212
[INFO] [stderr]    d9cd57a66..35abfbdb2  173-fix-batch-handling -> 173-fix-batch-handling
[INFO] [stderr]    f78771c82..e95bfa5b5  chore/194-audit        -> chore/194-audit
[INFO] [stderr]    4f50b73e5..12e99fbd0  feat/23                -> feat/23
[INFO] [stderr]    987f10963..219e88f24  master                 -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 219e88f24453c4fa7cc3a7d31ba12d48993c19c9
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.