[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-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/unwalk-gz/0.2.0-beta1
[INFO] extracting crate unwalk-gz 0.2.0-beta1 into work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/unwalk-gz/0.2.0-beta1
[INFO] validating manifest of unwalk-gz-0.2.0-beta1 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 unwalk-gz-0.2.0-beta1 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 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-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/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-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/unwalk-gz/0.2.0-beta1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-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-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/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" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed