[INFO] updating cached repository theor/rust-belts
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/theor/rust-belts
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/theor/rust-belts" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/theor/rust-belts"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/theor/rust-belts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/theor/rust-belts" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/theor/rust-belts"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/theor/rust-belts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92b4fa8ce55dc58f745a73499aad93ec80d22b22
[INFO] sha for GitHub repo theor/rust-belts: 92b4fa8ce55dc58f745a73499aad93ec80d22b22
[INFO] validating manifest of theor/rust-belts on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of theor/rust-belts on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing theor/rust-belts
[INFO] removed path dependency ntree from theor/rust-belts
[INFO] removed path dependency specs from theor/rust-belts
[INFO] finished frobbing theor/rust-belts
[INFO] frobbed toml for theor/rust-belts written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/theor/rust-belts/Cargo.toml
[INFO] started frobbing theor/rust-belts
[INFO] removed path dependency ntree from theor/rust-belts
[INFO] removed path dependency specs from theor/rust-belts
[INFO] finished frobbing theor/rust-belts
[INFO] frobbed toml for theor/rust-belts written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/theor/rust-belts/Cargo.toml
[INFO] crate theor/rust-belts already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/theor/rust-belts/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/ggez/ggez.git`
[INFO] [stderr]     Updating git repository `https://github.com/slide-rs/specs`
[INFO] [stderr] error: failed to select a version for `ggez`.
[INFO] [stderr]     ... required by package `recs v0.1.0 (/mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/theor/rust-belts)`
[INFO] [stderr] versions that meet the requirements `*` are: 0.5.0-rc.1
[INFO] [stderr] 
[INFO] [stderr] the package `recs` depends on `ggez`, with features: `cargo-resource-root` but `ggez` does not have these features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `ggez` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed