[INFO] updating cached repository freebroccolo/dtlc.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/freebroccolo/dtlc.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/freebroccolo/dtlc.rs" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/freebroccolo/dtlc.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/freebroccolo/dtlc.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/freebroccolo/dtlc.rs" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/freebroccolo/dtlc.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/freebroccolo/dtlc.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4a94520ff150133ce7339bc749c5218c8dd5e58e
[INFO] sha for GitHub repo freebroccolo/dtlc.rs: 4a94520ff150133ce7339bc749c5218c8dd5e58e
[INFO] validating manifest of freebroccolo/dtlc.rs on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of freebroccolo/dtlc.rs on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing freebroccolo/dtlc.rs
[INFO] finished frobbing freebroccolo/dtlc.rs
[INFO] frobbed toml for freebroccolo/dtlc.rs written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/freebroccolo/dtlc.rs/Cargo.toml
[INFO] started frobbing freebroccolo/dtlc.rs
[INFO] finished frobbing freebroccolo/dtlc.rs
[INFO] frobbed toml for freebroccolo/dtlc.rs written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/freebroccolo/dtlc.rs/Cargo.toml
[INFO] crate freebroccolo/dtlc.rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the git checkouts
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/freebroccolo/dtlc.rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on the git checkouts
[INFO] [stderr]     Updating git repository `https://github.com/docopt/docopt.rs`
[INFO] [stderr]     Blocking waiting for file lock on the git checkouts
[INFO] [stderr]     Updating git repository `https://github.com/kevinmehall/rust-peg`
[INFO] [stderr]     Blocking waiting for file lock on the git checkouts
[INFO] [stderr]     Updating git repository `https://github.com/jonsterling/rust-pretty`
[INFO] [stderr]     Blocking waiting for file lock on the git checkouts
[INFO] [stderr]     Updating git repository `https://github.com/BurntSushi/quickcheck`
[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 `dtlc v0.0.1 (/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/freebroccolo/dtlc.rs)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed