[INFO] crate iron-dsc-csrf 0.1.0 is already in cache
[INFO] extracting crate iron-dsc-csrf 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/iron-dsc-csrf/0.1.0
[INFO] extracting crate iron-dsc-csrf 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/iron-dsc-csrf/0.1.0
[INFO] validating manifest of iron-dsc-csrf-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of iron-dsc-csrf-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing iron-dsc-csrf-0.1.0
[INFO] finished frobbing iron-dsc-csrf-0.1.0
[INFO] frobbed toml for iron-dsc-csrf-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/iron-dsc-csrf/0.1.0/Cargo.toml
[INFO] started frobbing iron-dsc-csrf-0.1.0
[INFO] finished frobbing iron-dsc-csrf-0.1.0
[INFO] frobbed toml for iron-dsc-csrf-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/iron-dsc-csrf/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr] error: failed to select a version for the requirement `subtle = "^0.3.0"`
[INFO] [stderr]   candidate versions found which didn't match: 2.1.1, 2.1.0, 2.0.0, ...
[INFO] [stderr]   location searched: crates.io index
[INFO] [stderr] required by package `iron-dsc-csrf v0.1.0 (/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/iron-dsc-csrf/0.1.0)`
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: crate iron-dsc-csrf-0.1.0 depends on yanked crates
[ERROR]