[INFO] crate nanocurrency-types 0.3.15 is already in cache
[INFO] extracting crate nanocurrency-types 0.3.15 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/nanocurrency-types/0.3.15
[INFO] extracting crate nanocurrency-types 0.3.15 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/nanocurrency-types/0.3.15
[INFO] validating manifest of nanocurrency-types-0.3.15 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nanocurrency-types-0.3.15 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nanocurrency-types-0.3.15
[INFO] finished frobbing nanocurrency-types-0.3.15
[INFO] frobbed toml for nanocurrency-types-0.3.15 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/nanocurrency-types/0.3.15/Cargo.toml
[INFO] started frobbing nanocurrency-types-0.3.15
[INFO] finished frobbing nanocurrency-types-0.3.15
[INFO] frobbed toml for nanocurrency-types-0.3.15 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/nanocurrency-types/0.3.15/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `curve25519-dalek = "^0.14"`
[INFO] [stderr]   candidate versions found which didn't match: 1.0.3, 1.0.2, 1.0.1, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `ed25519-dalek v0.6.0`
[INFO] [stderr]     ... which is depended on by `nanocurrency-types v0.3.15 (/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/nanocurrency-types/0.3.15)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed