[INFO] crate unwalk-gz 0.2.0-beta1 is already in cache
[INFO] extracting crate unwalk-gz 0.2.0-beta1 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/unwalk-gz/0.2.0-beta1
[INFO] extracting crate unwalk-gz 0.2.0-beta1 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/unwalk-gz/0.2.0-beta1
[INFO] validating manifest of unwalk-gz-0.2.0-beta1 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 unwalk-gz-0.2.0-beta1 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 unwalk-gz-0.2.0-beta1
[INFO] finished frobbing unwalk-gz-0.2.0-beta1
[INFO] frobbed toml for unwalk-gz-0.2.0-beta1 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/unwalk-gz/0.2.0-beta1/Cargo.toml
[INFO] started frobbing unwalk-gz-0.2.0-beta1
[INFO] finished frobbing unwalk-gz-0.2.0-beta1
[INFO] frobbed toml for unwalk-gz-0.2.0-beta1 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/unwalk-gz/0.2.0-beta1/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 `tempfile = "= 3.0.0"`
[INFO] [stderr]   candidate versions found which didn't match: 3.0.5, 3.0.4, 3.0.3, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `unwalk-gz v0.2.0-beta1 (/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/unwalk-gz/0.2.0-beta1)`
[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