[INFO] updating cached repository va1erian/sat-bsp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/va1erian/sat-bsp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/va1erian/sat-bsp" "work/ex/beta-1.38-1/sources/1.37.0/gh/va1erian/sat-bsp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/va1erian/sat-bsp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/va1erian/sat-bsp" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/va1erian/sat-bsp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/va1erian/sat-bsp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6b0b639ae2d7e26ecb5307e5795c8e0f53e9448f
[INFO] sha for GitHub repo va1erian/sat-bsp: 6b0b639ae2d7e26ecb5307e5795c8e0f53e9448f
[INFO] validating manifest of va1erian/sat-bsp 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 va1erian/sat-bsp 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 va1erian/sat-bsp
[INFO] finished frobbing va1erian/sat-bsp
[INFO] frobbed toml for va1erian/sat-bsp written to work/ex/beta-1.38-1/sources/1.37.0/gh/va1erian/sat-bsp/Cargo.toml
[INFO] started frobbing va1erian/sat-bsp
[INFO] finished frobbing va1erian/sat-bsp
[INFO] frobbed toml for va1erian/sat-bsp written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/va1erian/sat-bsp/Cargo.toml
[INFO] crate va1erian/sat-bsp 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] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/va1erian/sat-bsp/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/kvark/cgmath-rs.git`
[INFO] [stderr] error: failed to load source for a dependency on `cgmath`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/kvark/cgmath-rs.git?branch=neg2
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to find branch `neg2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   cannot locate local branch 'neg2'; 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" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed