[INFO] updating cached repository BenTheElder/slack-rs-demo [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/BenTheElder/slack-rs-demo [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/BenTheElder/slack-rs-demo" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/BenTheElder/slack-rs-demo"` [INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/BenTheElder/slack-rs-demo'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/BenTheElder/slack-rs-demo" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/BenTheElder/slack-rs-demo"` [INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/BenTheElder/slack-rs-demo'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2f04a8cc51813eb415f5ef76b3604dee43153dcc [INFO] sha for GitHub repo BenTheElder/slack-rs-demo: 2f04a8cc51813eb415f5ef76b3604dee43153dcc [INFO] validating manifest of BenTheElder/slack-rs-demo 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 BenTheElder/slack-rs-demo 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 BenTheElder/slack-rs-demo [INFO] finished frobbing BenTheElder/slack-rs-demo [INFO] frobbed toml for BenTheElder/slack-rs-demo written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/BenTheElder/slack-rs-demo/Cargo.toml [INFO] started frobbing BenTheElder/slack-rs-demo [INFO] finished frobbing BenTheElder/slack-rs-demo [INFO] frobbed toml for BenTheElder/slack-rs-demo written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/BenTheElder/slack-rs-demo/Cargo.toml [INFO] crate BenTheElder/slack-rs-demo has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/BenTheElder/slack-rs-demo/Cargo.lock needs to be updated but --locked was passed to prevent this [ERROR] this task or one of its parent failed! [ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed