[INFO] updating cached repository ian-p-cooke/capntls
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ian-p-cooke/capntls
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ian-p-cooke/capntls" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/ian-p-cooke/capntls"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/ian-p-cooke/capntls'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ian-p-cooke/capntls" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/ian-p-cooke/capntls"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/ian-p-cooke/capntls'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4dac50cdc4653b2096f72c253dff4f16328b4678
[INFO] sha for GitHub repo ian-p-cooke/capntls: 4dac50cdc4653b2096f72c253dff4f16328b4678
[INFO] validating manifest of ian-p-cooke/capntls on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ian-p-cooke/capntls on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ian-p-cooke/capntls
[INFO] finished frobbing ian-p-cooke/capntls
[INFO] frobbed toml for ian-p-cooke/capntls written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/ian-p-cooke/capntls/Cargo.toml
[INFO] started frobbing ian-p-cooke/capntls
[INFO] finished frobbing ian-p-cooke/capntls
[INFO] frobbed toml for ian-p-cooke/capntls written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/ian-p-cooke/capntls/Cargo.toml
[INFO] crate ian-p-cooke/capntls already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Updating git repository `https://github.com/ian-p-cooke/rust-openssl`
[INFO] [stderr] error: failed to load source for a dependency on `openssl`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/ian-p-cooke/rust-openssl#6fa89f10
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   revspec '6fa89f10c1b8e922e13bc12fad5bd0b85c08ce2d' not found; class=Reference (4); code=NotFound (-3)
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed