[INFO] updating cached repository mark-christiaens/interleaver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mark-christiaens/interleaver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mark-christiaens/interleaver" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mark-christiaens/interleaver"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mark-christiaens/interleaver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mark-christiaens/interleaver" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/mark-christiaens/interleaver"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/mark-christiaens/interleaver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4cda7e244e9fcdd70976f52ebd3f417c8d1cb00a
[INFO] sha for GitHub repo mark-christiaens/interleaver: 4cda7e244e9fcdd70976f52ebd3f417c8d1cb00a
[INFO] validating manifest of mark-christiaens/interleaver on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mark-christiaens/interleaver on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mark-christiaens/interleaver
[INFO] finished frobbing mark-christiaens/interleaver
[INFO] frobbed toml for mark-christiaens/interleaver written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mark-christiaens/interleaver/Cargo.toml
[INFO] started frobbing mark-christiaens/interleaver
[INFO] finished frobbing mark-christiaens/interleaver
[INFO] frobbed toml for mark-christiaens/interleaver written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/mark-christiaens/interleaver/Cargo.toml
[INFO] crate mark-christiaens/interleaver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mark-christiaens/interleaver/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/docopt/docopt.rs`
[INFO] [stderr] error: no matching package named `docopt_macros` found
[INFO] [stderr] location searched: https://github.com/docopt/docopt.rs
[INFO] [stderr] required by package `interleaver v0.0.1 (/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/mark-christiaens/interleaver)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed