[INFO] updating cached repository tesaguri/iba_kyuko_bot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tesaguri/iba_kyuko_bot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tesaguri/iba_kyuko_bot" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/tesaguri/iba_kyuko_bot"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/tesaguri/iba_kyuko_bot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tesaguri/iba_kyuko_bot" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/tesaguri/iba_kyuko_bot"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/tesaguri/iba_kyuko_bot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2ae9163e20905570e56057efd164e75e2e5ef8b2
[INFO] sha for GitHub repo tesaguri/iba_kyuko_bot: 2ae9163e20905570e56057efd164e75e2e5ef8b2
[INFO] validating manifest of tesaguri/iba_kyuko_bot 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 tesaguri/iba_kyuko_bot 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 tesaguri/iba_kyuko_bot
[INFO] finished frobbing tesaguri/iba_kyuko_bot
[INFO] frobbed toml for tesaguri/iba_kyuko_bot written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/tesaguri/iba_kyuko_bot/Cargo.toml
[INFO] started frobbing tesaguri/iba_kyuko_bot
[INFO] finished frobbing tesaguri/iba_kyuko_bot
[INFO] frobbed toml for tesaguri/iba_kyuko_bot written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/tesaguri/iba_kyuko_bot/Cargo.toml
[INFO] crate tesaguri/iba_kyuko_bot 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 crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `ring = "^0.6"`
[INFO] [stderr]   candidate versions found which didn't match: 0.14.6, 0.14.5, 0.14.4, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `egg-mode v0.8.0`
[INFO] [stderr]     ... which is depended on by `iba_kyuko_bot v0.0.0 (/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/tesaguri/iba_kyuko_bot)`
[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