[INFO] cloning repository killercup/clap-man-demo
[INFO] running `"git" "clone" "--bare" "git://github.com/killercup/clap-man-demo.git" "work/cache/sources/gh/killercup/clap-man-demo"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/killercup/clap-man-demo'...
[INFO] running `"git" "clone" "work/cache/sources/gh/killercup/clap-man-demo" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/killercup/clap-man-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/killercup/clap-man-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/killercup/clap-man-demo" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/killercup/clap-man-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/killercup/clap-man-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c2795d0595ed4ad930d1d4ee49a4fe45d0c880de
[INFO] sha for GitHub repo killercup/clap-man-demo: c2795d0595ed4ad930d1d4ee49a4fe45d0c880de
[INFO] validating manifest of killercup/clap-man-demo on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of killercup/clap-man-demo on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing killercup/clap-man-demo
[INFO] finished frobbing killercup/clap-man-demo
[INFO] frobbed toml for killercup/clap-man-demo written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/killercup/clap-man-demo/Cargo.toml
[INFO] started frobbing killercup/clap-man-demo
[INFO] finished frobbing killercup/clap-man-demo
[INFO] frobbed toml for killercup/clap-man-demo written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/killercup/clap-man-demo/Cargo.toml
[INFO] crate killercup/clap-man-demo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/yoshuawuyts/clap_generate`
[INFO] [stderr]     Updating git repository `https://github.com/clap-rs/clap_derive`
[INFO] [stderr]     Updating git repository `https://github.com/rust-clique/man`
[INFO] [stderr] error: failed to load source for a dependency on `man`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Unable to update https://github.com/rust-clique/man?branch=declap#a8ba1a73
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   revspec 'a8ba1a73dc7868802d6e834144795393d8bd367a' not found; class=Reference (4); code=NotFound (-3)
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed