[INFO] crate kaws 0.10.0 is already in cache
[INFO] extracting crate kaws 0.10.0 into work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/kaws/0.10.0
[INFO] extracting crate kaws 0.10.0 into work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/reg/kaws/0.10.0
[INFO] validating manifest of kaws-0.10.0 on toolchain master#df25d79a33b0c82b716699a75a41bfdc6089850a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kaws-0.10.0 on toolchain try#424a4ae163d6517f301cd4048a4b5dd785be5b2f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kaws-0.10.0
[INFO] finished frobbing kaws-0.10.0
[INFO] frobbed toml for kaws-0.10.0 written to work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/kaws/0.10.0/Cargo.toml
[INFO] started frobbing kaws-0.10.0
[INFO] finished frobbing kaws-0.10.0
[INFO] frobbed toml for kaws-0.10.0 written to work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/reg/kaws/0.10.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `ring = "^0.11"`
[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 `rusoto_core v0.27.0`
[INFO] [stderr]     ... which is depended on by `kaws v0.10.0 (/mnt/big/crater/work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/kaws/0.10.0)`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: crate kaws-0.10.0 depends on yanked crates
[ERROR]