[INFO] fetching crate nano-vanity 0.4.8...
[INFO] extracting crate nano-vanity 0.4.8 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/nano-vanity/0.4.8
[INFO] extracting crate nano-vanity 0.4.8 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/nano-vanity/0.4.8
[INFO] validating manifest of nano-vanity-0.4.8 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nano-vanity-0.4.8 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nano-vanity-0.4.8
[INFO] finished frobbing nano-vanity-0.4.8
[INFO] frobbed toml for nano-vanity-0.4.8 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/nano-vanity/0.4.8/Cargo.toml
[INFO] started frobbing nano-vanity-0.4.8
[INFO] finished frobbing nano-vanity-0.4.8
[INFO] frobbed toml for nano-vanity-0.4.8 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/nano-vanity/0.4.8/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `curve25519-dalek = "^0.20"`
[INFO] [stderr]   candidate versions found which didn't match: 1.2.1, 1.1.4, 1.1.3, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `ed25519-dalek v0.8.1`
[INFO] [stderr]     ... which is depended on by `nano-vanity v0.4.8 (/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/nano-vanity/0.4.8)`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: crate nano-vanity-0.4.8 depends on yanked crates
[ERROR]