[INFO] cloning repository feadoor/rustdoku
[INFO] running `"git" "clone" "--bare" "git://github.com/feadoor/rustdoku.git" "work/cache/sources/gh/feadoor/rustdoku"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/feadoor/rustdoku'...
[INFO] running `"git" "clone" "work/cache/sources/gh/feadoor/rustdoku" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/feadoor/rustdoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/feadoor/rustdoku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/feadoor/rustdoku" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/feadoor/rustdoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/feadoor/rustdoku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7fed9b0bfcceee9683cc3d7b6998351939a46494
[INFO] sha for GitHub repo feadoor/rustdoku: 7fed9b0bfcceee9683cc3d7b6998351939a46494
[INFO] validating manifest of feadoor/rustdoku 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 feadoor/rustdoku 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 feadoor/rustdoku
[INFO] finished frobbing feadoor/rustdoku
[INFO] frobbed toml for feadoor/rustdoku written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/feadoor/rustdoku/Cargo.toml
[INFO] started frobbing feadoor/rustdoku
[INFO] finished frobbing feadoor/rustdoku
[INFO] frobbed toml for feadoor/rustdoku written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/feadoor/rustdoku/Cargo.toml
[INFO] crate feadoor/rustdoku 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] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking feadoor/rustdoku against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/feadoor/rustdoku:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 01bdac65c3e908d4c41220f661d8907f1d00a0ecd4f58ba6a5054dd98400eb59
[INFO] running `"docker" "start" "-a" "01bdac65c3e908d4c41220f661d8907f1d00a0ecd4f58ba6a5054dd98400eb59"`
[INFO] [stderr]     Checking itertools v0.5.7
[INFO] [stderr]     Checking rustdoku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `count_solutions`
[INFO] [stderr]    --> src/generator/brute_force.rs:731:1
[INFO] [stderr]     |
[INFO] [stderr] 731 | pub fn count_solutions(clues: &[usize]) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_solutions`
[INFO] [stderr]    --> src/generator/brute_force.rs:731:1
[INFO] [stderr]     |
[INFO] [stderr] 731 | pub fn count_solutions(clues: &[usize]) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `"docker" "inspect" "01bdac65c3e908d4c41220f661d8907f1d00a0ecd4f58ba6a5054dd98400eb59"`
[INFO] running `"docker" "rm" "-f" "01bdac65c3e908d4c41220f661d8907f1d00a0ecd4f58ba6a5054dd98400eb59"`
[INFO] [stdout] 01bdac65c3e908d4c41220f661d8907f1d00a0ecd4f58ba6a5054dd98400eb59