[INFO] cloning repository ian-hamlin/rust-csv-128
[INFO] running `"git" "clone" "--bare" "git://github.com/ian-hamlin/rust-csv-128.git" "work/cache/sources/gh/ian-hamlin/rust-csv-128"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ian-hamlin/rust-csv-128'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ian-hamlin/rust-csv-128" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ian-hamlin/rust-csv-128"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ian-hamlin/rust-csv-128'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ian-hamlin/rust-csv-128" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ian-hamlin/rust-csv-128"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ian-hamlin/rust-csv-128'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2cbf6cab626efc2f3745e0f5d76723d91030c7fe
[INFO] sha for GitHub repo ian-hamlin/rust-csv-128: 2cbf6cab626efc2f3745e0f5d76723d91030c7fe
[INFO] validating manifest of ian-hamlin/rust-csv-128 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ian-hamlin/rust-csv-128 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ian-hamlin/rust-csv-128
[INFO] finished frobbing ian-hamlin/rust-csv-128
[INFO] frobbed toml for ian-hamlin/rust-csv-128 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ian-hamlin/rust-csv-128/Cargo.toml
[INFO] started frobbing ian-hamlin/rust-csv-128
[INFO] finished frobbing ian-hamlin/rust-csv-128
[INFO] frobbed toml for ian-hamlin/rust-csv-128 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ian-hamlin/rust-csv-128/Cargo.toml
[INFO] crate ian-hamlin/rust-csv-128 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/ian-hamlin/rust-csv`
[INFO] [stderr] error: failed to load source for a dependency on `csv`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/ian-hamlin/rust-csv?rev=9ef099dcd48e454613cd30e0ea8db514905cba92#9ef099dc
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   revspec '9ef099dcd48e454613cd30e0ea8db514905cba92' not found; class=Reference (4); code=NotFound (-3)
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed