[INFO] cloning repository Byron/termbook
[INFO] running `"git" "clone" "--bare" "git://github.com/Byron/termbook.git" "work/cache/sources/gh/Byron/termbook"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Byron/termbook'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Byron/termbook" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Byron/termbook"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Byron/termbook'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Byron/termbook" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Byron/termbook"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Byron/termbook'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8a10156883ca0889fe888b4ea04f2cafdb6dc9c0
[INFO] sha for GitHub repo Byron/termbook: 8a10156883ca0889fe888b4ea04f2cafdb6dc9c0
[INFO] validating manifest of Byron/termbook on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Byron/termbook on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Byron/termbook
[INFO] removed workspace from Byron/termbook
[INFO] removed path dependency termbook from Byron/termbook
[INFO] finished frobbing Byron/termbook
[INFO] frobbed toml for Byron/termbook written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Byron/termbook/Cargo.toml
[INFO] started frobbing Byron/termbook
[INFO] removed workspace from Byron/termbook
[INFO] removed path dependency termbook from Byron/termbook
[INFO] finished frobbing Byron/termbook
[INFO] frobbed toml for Byron/termbook written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/Byron/termbook/Cargo.toml
[INFO] crate Byron/termbook already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `termbook = "^1.4.2"`
[INFO] [stderr]   candidate versions found which didn't match: 1.4.1, 1.4.0, 1.3.0, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `termbook-cli v1.4.0 (/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/Byron/termbook)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed