[INFO] updating cached repository adumbidiot/chip8-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/adumbidiot/chip8-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/adumbidiot/chip8-rs" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/adumbidiot/chip8-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/adumbidiot/chip8-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/adumbidiot/chip8-rs" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/adumbidiot/chip8-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/adumbidiot/chip8-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f26cc9899877d6e83dae19f1a175a8f3e2bc56d5
[INFO] sha for GitHub repo adumbidiot/chip8-rs: f26cc9899877d6e83dae19f1a175a8f3e2bc56d5
[INFO] validating manifest of adumbidiot/chip8-rs on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of adumbidiot/chip8-rs on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing adumbidiot/chip8-rs
[INFO] finished frobbing adumbidiot/chip8-rs
[INFO] frobbed toml for adumbidiot/chip8-rs written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/adumbidiot/chip8-rs/Cargo.toml
[INFO] started frobbing adumbidiot/chip8-rs
[INFO] finished frobbing adumbidiot/chip8-rs
[INFO] frobbed toml for adumbidiot/chip8-rs written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/adumbidiot/chip8-rs/Cargo.toml
[INFO] crate adumbidiot/chip8-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: failed to select a version for `rand`.
[INFO] [stderr]     ... required by package `chip8 v0.1.0 (/mnt/big/crater/work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/adumbidiot/chip8-rs)`
[INFO] [stderr] versions that meet the requirements `= 0.4.6` are: 0.4.6
[INFO] [stderr] 
[INFO] [stderr] the package `chip8` depends on `rand`, with features: `wasm-bindgen` but `rand` does not have these features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `rand` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed