[INFO] fetching crate cargo_crates-io_docs-rs_test2 0.1.1...
[INFO] extracting crate cargo_crates-io_docs-rs_test2 0.1.1 into work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/cargo_crates-io_docs-rs_test2/0.1.1
[INFO] extracting crate cargo_crates-io_docs-rs_test2 0.1.1 into work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/cargo_crates-io_docs-rs_test2/0.1.1
[INFO] validating manifest of cargo_crates-io_docs-rs_test2-0.1.1 on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cargo_crates-io_docs-rs_test2-0.1.1 on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cargo_crates-io_docs-rs_test2-0.1.1
[INFO] finished frobbing cargo_crates-io_docs-rs_test2-0.1.1
[INFO] frobbed toml for cargo_crates-io_docs-rs_test2-0.1.1 written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/cargo_crates-io_docs-rs_test2/0.1.1/Cargo.toml
[INFO] started frobbing cargo_crates-io_docs-rs_test2-0.1.1
[INFO] finished frobbing cargo_crates-io_docs-rs_test2-0.1.1
[INFO] frobbed toml for cargo_crates-io_docs-rs_test2-0.1.1 written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/reg/cargo_crates-io_docs-rs_test2/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `cargo_crates-io_docs-rs_test = "^0.1.0"`
[INFO] [stderr]   candidate versions found which didn't match: 0.5.0, 0.3.0
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `cargo_crates-io_docs-rs_test2 v0.1.1 (/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/reg/cargo_crates-io_docs-rs_test2/0.1.1)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed