[INFO] updating cached repository toidiu/dkv
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/toidiu/dkv
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/toidiu/dkv" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/toidiu/dkv"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/toidiu/dkv'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/toidiu/dkv" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/toidiu/dkv"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/toidiu/dkv'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 307736fe4919628d54fe909d0d5fd600ec6c9b3e
[INFO] sha for GitHub repo toidiu/dkv: 307736fe4919628d54fe909d0d5fd600ec6c9b3e
[INFO] validating manifest of toidiu/dkv on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of toidiu/dkv on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing toidiu/dkv
[INFO] removed workspace from toidiu/dkv
[INFO] removed path dependency grpcio-proto from toidiu/dkv
[INFO] finished frobbing toidiu/dkv
[INFO] frobbed toml for toidiu/dkv written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/toidiu/dkv/Cargo.toml
[INFO] started frobbing toidiu/dkv
[INFO] removed workspace from toidiu/dkv
[INFO] removed path dependency grpcio-proto from toidiu/dkv
[INFO] finished frobbing toidiu/dkv
[INFO] frobbed toml for toidiu/dkv written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/toidiu/dkv/Cargo.toml
[INFO] crate toidiu/dkv already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `grpcio-proto = "^0.1.0"`
[INFO] [stderr]   candidate versions found which didn't match: 0.4.0, 0.3.0, 0.2.0
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `dkv v0.1.0 (/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/toidiu/dkv)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed