[INFO] crate bui-backend 0.6.0 is already in cache
[INFO] extracting crate bui-backend 0.6.0 into work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/reg/bui-backend/0.6.0
[INFO] extracting crate bui-backend 0.6.0 into work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/reg/bui-backend/0.6.0
[INFO] validating manifest of bui-backend-0.6.0 on toolchain master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bui-backend-0.6.0 on toolchain try#097e26225c5cc28d3042ad4c80eac7c488f78ee7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bui-backend-0.6.0
[INFO] finished frobbing bui-backend-0.6.0
[INFO] frobbed toml for bui-backend-0.6.0 written to work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/reg/bui-backend/0.6.0/Cargo.toml
[INFO] started frobbing bui-backend-0.6.0
[INFO] finished frobbing bui-backend-0.6.0
[INFO] frobbed toml for bui-backend-0.6.0 written to work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/reg/bui-backend/0.6.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr] error: failed to select a version for the requirement `ring = "^0.12.0"`
[INFO] [stderr]   candidate versions found which didn't match: 0.14.6, 0.14.5, 0.14.4, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `jsonwebtoken v4.0.0`
[INFO] [stderr]     ... which is depended on by `bui-backend v0.6.0 (/mnt/crater-raid/crater/work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/reg/bui-backend/0.6.0)`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: crate bui-backend-0.6.0 depends on yanked crates
[ERROR]