[INFO] updating cached repository mimblewimble/grin
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mimblewimble/grin
[INFO] [stderr]  * branch              HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mimblewimble/grin" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mimblewimble/grin"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mimblewimble/grin'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mimblewimble/grin" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mimblewimble/grin"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mimblewimble/grin'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 93bcb23f082bb66fbfbc7ab9d68068f619d6e46d
[INFO] sha for GitHub repo mimblewimble/grin: 93bcb23f082bb66fbfbc7ab9d68068f619d6e46d
[INFO] validating manifest of mimblewimble/grin on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mimblewimble/grin on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mimblewimble/grin
[INFO] removed workspace from mimblewimble/grin
[INFO] removed path dependency grin_api from mimblewimble/grin
[INFO] removed path dependency grin_config from mimblewimble/grin
[INFO] removed path dependency grin_core from mimblewimble/grin
[INFO] removed path dependency grin_keychain from mimblewimble/grin
[INFO] removed path dependency grin_p2p from mimblewimble/grin
[INFO] removed path dependency grin_servers from mimblewimble/grin
[INFO] removed path dependency grin_util from mimblewimble/grin
[INFO] removed path dependency grin_chain from mimblewimble/grin
[INFO] removed path dependency grin_store from mimblewimble/grin
[INFO] finished frobbing mimblewimble/grin
[INFO] frobbed toml for mimblewimble/grin written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mimblewimble/grin/Cargo.toml
[INFO] started frobbing mimblewimble/grin
[INFO] removed workspace from mimblewimble/grin
[INFO] removed path dependency grin_api from mimblewimble/grin
[INFO] removed path dependency grin_config from mimblewimble/grin
[INFO] removed path dependency grin_core from mimblewimble/grin
[INFO] removed path dependency grin_keychain from mimblewimble/grin
[INFO] removed path dependency grin_p2p from mimblewimble/grin
[INFO] removed path dependency grin_servers from mimblewimble/grin
[INFO] removed path dependency grin_util from mimblewimble/grin
[INFO] removed path dependency grin_chain from mimblewimble/grin
[INFO] removed path dependency grin_store from mimblewimble/grin
[INFO] finished frobbing mimblewimble/grin
[INFO] frobbed toml for mimblewimble/grin written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mimblewimble/grin/Cargo.toml
[INFO] crate mimblewimble/grin already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `grin_api = "^1.1.1-beta.1"`
[INFO] [stderr]   candidate versions found which didn't match: 2.0.0, 1.1.0, 1.0.3, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `grin v1.1.1-beta.1 (/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mimblewimble/grin)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed