[INFO] updating cached repository fizyk20/atm-raytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fizyk20/atm-raytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fizyk20/atm-raytracer" "work/ex/beta-1.38-1/sources/1.37.0/gh/fizyk20/atm-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fizyk20/atm-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fizyk20/atm-raytracer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fizyk20/atm-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fizyk20/atm-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d01a452f8c4936030638432e735615e7ff55ac82
[INFO] sha for GitHub repo fizyk20/atm-raytracer: d01a452f8c4936030638432e735615e7ff55ac82
[INFO] validating manifest of fizyk20/atm-raytracer 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 fizyk20/atm-raytracer 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 fizyk20/atm-raytracer
[INFO] removed path dependency imageproc from fizyk20/atm-raytracer
[INFO] finished frobbing fizyk20/atm-raytracer
[INFO] frobbed toml for fizyk20/atm-raytracer written to work/ex/beta-1.38-1/sources/1.37.0/gh/fizyk20/atm-raytracer/Cargo.toml
[INFO] started frobbing fizyk20/atm-raytracer
[INFO] removed path dependency imageproc from fizyk20/atm-raytracer
[INFO] finished frobbing fizyk20/atm-raytracer
[INFO] frobbed toml for fizyk20/atm-raytracer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fizyk20/atm-raytracer/Cargo.toml
[INFO] crate fizyk20/atm-raytracer 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 crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/fizyk20/image.git`
[INFO] [stderr] error: failed to load source for a dependency on `image`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/fizyk20/image.git?branch=rows#7836edd1
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   revspec '7836edd13c161a0cf7e02b3bf8c275a0dcf78c9c' 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