[INFO] updating cached repository steveklabnik/rustmvc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/steveklabnik/rustmvc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/steveklabnik/rustmvc" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/steveklabnik/rustmvc"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/steveklabnik/rustmvc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/steveklabnik/rustmvc" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/steveklabnik/rustmvc"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/steveklabnik/rustmvc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9bb7391cbb0f7594dfabe03a3644979f51916238
[INFO] sha for GitHub repo steveklabnik/rustmvc: 9bb7391cbb0f7594dfabe03a3644979f51916238
[INFO] validating manifest of steveklabnik/rustmvc 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 steveklabnik/rustmvc 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 steveklabnik/rustmvc
[INFO] finished frobbing steveklabnik/rustmvc
[INFO] frobbed toml for steveklabnik/rustmvc written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/steveklabnik/rustmvc/Cargo.toml
[INFO] started frobbing steveklabnik/rustmvc
[INFO] finished frobbing steveklabnik/rustmvc
[INFO] frobbed toml for steveklabnik/rustmvc written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/steveklabnik/rustmvc/Cargo.toml
[INFO] crate steveklabnik/rustmvc 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]     Updating git repository `https://github.com/nickel-org/rust-http.git`
[INFO] [stderr] error: failed to load source for a dependency on `http`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/nickel-org/rust-http.git#5b4786ca
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   revspec '5b4786ca9b74434d91aab0e4fde8ed1a3aec77bd' not found; class=Reference (4); code=NotFound (-3)
[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