[INFO] crate secret_handshake 5.0.0 is already in cache [INFO] extracting crate secret_handshake 5.0.0 into work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/secret_handshake/5.0.0 [INFO] extracting crate secret_handshake 5.0.0 into work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/secret_handshake/5.0.0 [INFO] validating manifest of secret_handshake-5.0.0 on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of secret_handshake-5.0.0 on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing secret_handshake-5.0.0 [INFO] finished frobbing secret_handshake-5.0.0 [INFO] frobbed toml for secret_handshake-5.0.0 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/secret_handshake/5.0.0/Cargo.toml [INFO] started frobbing secret_handshake-5.0.0 [INFO] finished frobbing secret_handshake-5.0.0 [INFO] frobbed toml for secret_handshake-5.0.0 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/secret_handshake/5.0.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] error: failed to select a version for the requirement `futures = "^0.2.0-alpha"` [INFO] [stderr] candidate versions found which didn't match: 0.1.25, 0.1.24, 0.1.23, ... [INFO] [stderr] location searched: crates.io index [INFO] [stderr] required by package `secret_handshake v5.0.0 (/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/secret_handshake/5.0.0)` [ERROR] this task or one of its parent failed! [ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed