[INFO] updating cached repository RayNovarina/rust-docker-heroku
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RayNovarina/rust-docker-heroku
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RayNovarina/rust-docker-heroku" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/RayNovarina/rust-docker-heroku"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/RayNovarina/rust-docker-heroku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RayNovarina/rust-docker-heroku" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/RayNovarina/rust-docker-heroku"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/RayNovarina/rust-docker-heroku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 460bd0d6cc8a99e6298c5ba9165665f32700d2d7
[INFO] sha for GitHub repo RayNovarina/rust-docker-heroku: 460bd0d6cc8a99e6298c5ba9165665f32700d2d7
[INFO] validating manifest of RayNovarina/rust-docker-heroku on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of RayNovarina/rust-docker-heroku on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing RayNovarina/rust-docker-heroku
[INFO] finished frobbing RayNovarina/rust-docker-heroku
[INFO] frobbed toml for RayNovarina/rust-docker-heroku written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/RayNovarina/rust-docker-heroku/Cargo.toml
[INFO] started frobbing RayNovarina/rust-docker-heroku
[INFO] finished frobbing RayNovarina/rust-docker-heroku
[INFO] frobbed toml for RayNovarina/rust-docker-heroku written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/RayNovarina/rust-docker-heroku/Cargo.toml
[INFO] crate RayNovarina/rust-docker-heroku has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/RayNovarina/rust-docker-heroku/Cargo.lock needs to be updated but --locked was passed to prevent this
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed