[INFO] updating cached repository Mange/cloudflare-dyndns-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Mange/cloudflare-dyndns-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Mange/cloudflare-dyndns-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/Mange/cloudflare-dyndns-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Mange/cloudflare-dyndns-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Mange/cloudflare-dyndns-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mange/cloudflare-dyndns-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mange/cloudflare-dyndns-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b1b915732d9b50d5ad3b9fddab3b2dd337bb0852
[INFO] sha for GitHub repo Mange/cloudflare-dyndns-rs: b1b915732d9b50d5ad3b9fddab3b2dd337bb0852
[INFO] validating manifest of Mange/cloudflare-dyndns-rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Mange/cloudflare-dyndns-rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Mange/cloudflare-dyndns-rs
[INFO] finished frobbing Mange/cloudflare-dyndns-rs
[INFO] frobbed toml for Mange/cloudflare-dyndns-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/Mange/cloudflare-dyndns-rs/Cargo.toml
[INFO] started frobbing Mange/cloudflare-dyndns-rs
[INFO] finished frobbing Mange/cloudflare-dyndns-rs
[INFO] frobbed toml for Mange/cloudflare-dyndns-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mange/cloudflare-dyndns-rs/Cargo.toml
[INFO] crate Mange/cloudflare-dyndns-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/Mange/cloudflare-rs`
[INFO] [stderr] error: failed to load source for a dependency on `cloudflare`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/Mange/cloudflare-rs?branch=zone-dns-update#63c8d076
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   revspec '63c8d076255c04fa48caa2729edffa74bdb48454' not found; class=Reference (4); code=NotFound (-3)
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed