[INFO] crate google-slides1-cli 1.0.4+20161213 is already in cache
[INFO] extracting crate google-slides1-cli 1.0.4+20161213 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/google-slides1-cli/1.0.4+20161213
[INFO] extracting crate google-slides1-cli 1.0.4+20161213 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/google-slides1-cli/1.0.4+20161213
[INFO] validating manifest of google-slides1-cli-1.0.4+20161213 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of google-slides1-cli-1.0.4+20161213 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing google-slides1-cli-1.0.4+20161213
[INFO] removed path dependency google-slides1 from google-slides1-cli-1.0.4+20161213
[INFO] finished frobbing google-slides1-cli-1.0.4+20161213
[INFO] frobbed toml for google-slides1-cli-1.0.4+20161213 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/google-slides1-cli/1.0.4+20161213/Cargo.toml
[INFO] started frobbing google-slides1-cli-1.0.4+20161213
[INFO] removed path dependency google-slides1 from google-slides1-cli-1.0.4+20161213
[INFO] finished frobbing google-slides1-cli-1.0.4+20161213
[INFO] frobbed toml for google-slides1-cli-1.0.4+20161213 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/google-slides1-cli/1.0.4+20161213/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `webpki = "^0.8.0"`
[INFO] [stderr]   candidate versions found which didn't match: 0.18.1, 0.18.0, 0.17.0, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `webpki-roots v0.6.0`
[INFO] [stderr]     ... which is depended on by `hyper-rustls v0.3.0`
[INFO] [stderr]     ... which is depended on by `google-slides1-cli v1.0.4+20161213 (/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/google-slides1-cli/1.0.4+20161213)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed