[INFO] crate jwtexp 0.1.1 is already in cache
[INFO] extracting crate jwtexp 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/jwtexp/0.1.1
[INFO] extracting crate jwtexp 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/jwtexp/0.1.1
[INFO] validating manifest of jwtexp-0.1.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jwtexp-0.1.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jwtexp-0.1.1
[INFO] finished frobbing jwtexp-0.1.1
[INFO] frobbed toml for jwtexp-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/jwtexp/0.1.1/Cargo.toml
[INFO] started frobbing jwtexp-0.1.1
[INFO] finished frobbing jwtexp-0.1.1
[INFO] frobbed toml for jwtexp-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/jwtexp/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to select a version for the requirement `untrusted = "^0.5"`
[INFO] [stderr]   candidate versions found which didn't match: 0.7.0, 0.6.2
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `jsonwebtoken v3.0.0`
[INFO] [stderr]     ... which is depended on by `jwtexp v0.1.1 (/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/jwtexp/0.1.1)`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: crate jwtexp-0.1.1 depends on yanked crates
[ERROR]