[INFO] crate volatile_cell 1.0.0 is already in cache [INFO] extracting crate volatile_cell 1.0.0 into work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/volatile_cell/1.0.0 [INFO] extracting crate volatile_cell 1.0.0 into work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/volatile_cell/1.0.0 [INFO] validating manifest of volatile_cell-1.0.0 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 volatile_cell-1.0.0 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 volatile_cell-1.0.0 [INFO] finished frobbing volatile_cell-1.0.0 [INFO] frobbed toml for volatile_cell-1.0.0 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/volatile_cell/1.0.0/Cargo.toml [INFO] started frobbing volatile_cell-1.0.0 [INFO] finished frobbing volatile_cell-1.0.0 [INFO] frobbed toml for volatile_cell-1.0.0 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/reg/volatile_cell/1.0.0/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] Updating git repository `https://github.com/hackndev/rust-libcore` [INFO] [stderr] error: no matching package named `core` found [INFO] [stderr] location searched: https://github.com/hackndev/rust-libcore [INFO] [stderr] required by package `volatile_cell v1.0.0 (/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/reg/volatile_cell/1.0.0)` [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