[INFO] updating cached repository tyler/cton2llvm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tyler/cton2llvm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tyler/cton2llvm" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tyler/cton2llvm"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tyler/cton2llvm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tyler/cton2llvm" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tyler/cton2llvm"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tyler/cton2llvm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4234b6edbff035a0daabf6eb0b9d9f5f1c3f26a7
[INFO] sha for GitHub repo tyler/cton2llvm: 4234b6edbff035a0daabf6eb0b9d9f5f1c3f26a7
[INFO] validating manifest of tyler/cton2llvm on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tyler/cton2llvm on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tyler/cton2llvm
[INFO] removed path dependency cretonne from tyler/cton2llvm
[INFO] removed path dependency cretonne-reader from tyler/cton2llvm
[INFO] finished frobbing tyler/cton2llvm
[INFO] frobbed toml for tyler/cton2llvm written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tyler/cton2llvm/Cargo.toml
[INFO] started frobbing tyler/cton2llvm
[INFO] removed path dependency cretonne from tyler/cton2llvm
[INFO] removed path dependency cretonne-reader from tyler/cton2llvm
[INFO] finished frobbing tyler/cton2llvm
[INFO] frobbed toml for tyler/cton2llvm written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tyler/cton2llvm/Cargo.toml
[INFO] crate tyler/cton2llvm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `cretonne` found
[INFO] [stderr] location searched: registry `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] required by package `cton2llvm v0.1.0 (/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tyler/cton2llvm)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed