[INFO] updating cached repository annacrombie/simple-google-pubsub
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/annacrombie/simple-google-pubsub
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/annacrombie/simple-google-pubsub" "work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/annacrombie/simple-google-pubsub"`
[INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/annacrombie/simple-google-pubsub'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/annacrombie/simple-google-pubsub" "work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/annacrombie/simple-google-pubsub"`
[INFO] [stderr] Cloning into 'work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/annacrombie/simple-google-pubsub'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ca31efaf62729272dae2e106eb42c08372248c07
[INFO] sha for GitHub repo annacrombie/simple-google-pubsub: ca31efaf62729272dae2e106eb42c08372248c07
[INFO] validating manifest of annacrombie/simple-google-pubsub on toolchain master#ef01f29964df207f181bd5bcf236e41372a17273
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of annacrombie/simple-google-pubsub on toolchain try#a7cff45e655f886da150e206c7acbe984df4ab71
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a7cff45e655f886da150e206c7acbe984df4ab71-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing annacrombie/simple-google-pubsub
[INFO] finished frobbing annacrombie/simple-google-pubsub
[INFO] frobbed toml for annacrombie/simple-google-pubsub written to work/ex/pr-60620-1/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/annacrombie/simple-google-pubsub/Cargo.toml
[INFO] started frobbing annacrombie/simple-google-pubsub
[INFO] finished frobbing annacrombie/simple-google-pubsub
[INFO] frobbed toml for annacrombie/simple-google-pubsub written to work/ex/pr-60620-1/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/annacrombie/simple-google-pubsub/Cargo.toml
[INFO] crate annacrombie/simple-google-pubsub already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: checksum for `google-pubsub1 v1.0.7+20171129` changed between lock files
[INFO] [stderr] 
[INFO] [stderr] this could be indicative of a few possible errors:
[INFO] [stderr] 
[INFO] [stderr]     * the lock file is corrupt
[INFO] [stderr]     * a replacement source in use (e.g., a mirror) returned a different checksum
[INFO] [stderr]     * the source itself may be corrupt in one way or another
[INFO] [stderr] 
[INFO] [stderr] unable to verify that `google-pubsub1 v1.0.7+20171129` is the same as when the lockfile was generated
[INFO] [stderr] 
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed