[INFO] crate tls-api-stub 0.1.20 is already in cache
[INFO] extracting crate tls-api-stub 0.1.20 into work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/tls-api-stub/0.1.20
[INFO] extracting crate tls-api-stub 0.1.20 into work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/tls-api-stub/0.1.20
[INFO] validating manifest of tls-api-stub-0.1.20 on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tls-api-stub-0.1.20 on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tls-api-stub-0.1.20
[INFO] finished frobbing tls-api-stub-0.1.20
[INFO] frobbed toml for tls-api-stub-0.1.20 written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/tls-api-stub/0.1.20/Cargo.toml
[INFO] started frobbing tls-api-stub-0.1.20
[INFO] finished frobbing tls-api-stub-0.1.20
[INFO] frobbed toml for tls-api-stub-0.1.20 written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/tls-api-stub/0.1.20/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `webpki = "^0.17"`
[INFO] [stderr]   candidate versions found which didn't match: 0.19.1, 0.19.0, 0.18.1
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `tls-api-test v0.1.20`
[INFO] [stderr]     ... which is depended on by `tls-api-stub v0.1.20 (/mnt/big/crater/work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/tls-api-stub/0.1.20)`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: crate tls-api-stub-0.1.20 depends on yanked crates
[ERROR]