[INFO] cloning repository ashleygwilliams/npm-registry-follower-rust
[INFO] running `"git" "clone" "--bare" "git://github.com/ashleygwilliams/npm-registry-follower-rust.git" "work/cache/sources/gh/ashleygwilliams/npm-registry-follower-rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ashleygwilliams/npm-registry-follower-rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ashleygwilliams/npm-registry-follower-rust" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/ashleygwilliams/npm-registry-follower-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/ashleygwilliams/npm-registry-follower-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ashleygwilliams/npm-registry-follower-rust" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/ashleygwilliams/npm-registry-follower-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/ashleygwilliams/npm-registry-follower-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3e3d87c87d9091710c039d229d7a2f93eeb3ed31
[INFO] sha for GitHub repo ashleygwilliams/npm-registry-follower-rust: 3e3d87c87d9091710c039d229d7a2f93eeb3ed31
[INFO] validating manifest of ashleygwilliams/npm-registry-follower-rust on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ashleygwilliams/npm-registry-follower-rust on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ashleygwilliams/npm-registry-follower-rust
[INFO] finished frobbing ashleygwilliams/npm-registry-follower-rust
[INFO] frobbed toml for ashleygwilliams/npm-registry-follower-rust written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/ashleygwilliams/npm-registry-follower-rust/Cargo.toml
[INFO] started frobbing ashleygwilliams/npm-registry-follower-rust
[INFO] finished frobbing ashleygwilliams/npm-registry-follower-rust
[INFO] frobbed toml for ashleygwilliams/npm-registry-follower-rust written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/ashleygwilliams/npm-registry-follower-rust/Cargo.toml
[INFO] crate ashleygwilliams/npm-registry-follower-rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/ashleygwilliams/changes-stream-rust.git`
[INFO] [stderr] error: failed to load source for a dependency on `changes-stream`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/ashleygwilliams/changes-stream-rust.git#894a0c8f
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   revspec '894a0c8f0b26af8e00a291239b3d751a73553345' 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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed