[INFO] updating cached repository lark-exploration/lark
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lark-exploration/lark
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lark-exploration/lark" "work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/lark-exploration/lark"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/lark-exploration/lark'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lark-exploration/lark" "work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/lark-exploration/lark"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/lark-exploration/lark'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d3a3d2fac321deacdcc53d2cc5252b6b5f0cb902
[INFO] sha for GitHub repo lark-exploration/lark: d3a3d2fac321deacdcc53d2cc5252b6b5f0cb902
[INFO] validating manifest of lark-exploration/lark on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lark-exploration/lark on toolchain try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lark-exploration/lark
[INFO] removed workspace from lark-exploration/lark
[INFO] removed path dependency lark-cli from lark-exploration/lark
[INFO] removed path dependency lark-debug-derive from lark-exploration/lark
[INFO] removed path dependency lark-debug-with from lark-exploration/lark
[INFO] removed path dependency lark-entity from lark-exploration/lark
[INFO] removed path dependency lark-hir from lark-exploration/lark
[INFO] removed path dependency lark-intern from lark-exploration/lark
[INFO] removed path dependency lark-language-server from lark-exploration/lark
[INFO] removed path dependency lark-parser from lark-exploration/lark
[INFO] removed path dependency lark-query-system from lark-exploration/lark
[INFO] removed path dependency lark-span from lark-exploration/lark
[INFO] removed path dependency lark-string from lark-exploration/lark
[INFO] removed path dependency lark-test from lark-exploration/lark
[INFO] removed path dependency lark-test-generate from lark-exploration/lark
[INFO] finished frobbing lark-exploration/lark
[INFO] frobbed toml for lark-exploration/lark written to work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/lark-exploration/lark/Cargo.toml
[INFO] started frobbing lark-exploration/lark
[INFO] removed workspace from lark-exploration/lark
[INFO] removed path dependency lark-cli from lark-exploration/lark
[INFO] removed path dependency lark-debug-derive from lark-exploration/lark
[INFO] removed path dependency lark-debug-with from lark-exploration/lark
[INFO] removed path dependency lark-entity from lark-exploration/lark
[INFO] removed path dependency lark-hir from lark-exploration/lark
[INFO] removed path dependency lark-intern from lark-exploration/lark
[INFO] removed path dependency lark-language-server from lark-exploration/lark
[INFO] removed path dependency lark-parser from lark-exploration/lark
[INFO] removed path dependency lark-query-system from lark-exploration/lark
[INFO] removed path dependency lark-span from lark-exploration/lark
[INFO] removed path dependency lark-string from lark-exploration/lark
[INFO] removed path dependency lark-test from lark-exploration/lark
[INFO] removed path dependency lark-test-generate from lark-exploration/lark
[INFO] finished frobbing lark-exploration/lark
[INFO] frobbed toml for lark-exploration/lark written to work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/lark-exploration/lark/Cargo.toml
[INFO] crate lark-exploration/lark has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `lark-cli` found
[INFO] [stderr] location searched: registry `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] required by package `lark v0.1.0 (/mnt/big/crater/work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/lark-exploration/lark)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed