[INFO] updating cached repository Ethan826/connect-four
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ethan826/connect-four
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ethan826/connect-four" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Ethan826/connect-four"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Ethan826/connect-four'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ethan826/connect-four" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Ethan826/connect-four"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Ethan826/connect-four'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e7b9d0c6cb18e9fadd618d65080e310494e567c5
[INFO] sha for GitHub repo Ethan826/connect-four: e7b9d0c6cb18e9fadd618d65080e310494e567c5
[INFO] validating manifest of Ethan826/connect-four on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Ethan826/connect-four on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Ethan826/connect-four
[INFO] finished frobbing Ethan826/connect-four
[INFO] frobbed toml for Ethan826/connect-four written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Ethan826/connect-four/Cargo.toml
[INFO] started frobbing Ethan826/connect-four
[INFO] finished frobbing Ethan826/connect-four
[INFO] frobbed toml for Ethan826/connect-four written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Ethan826/connect-four/Cargo.toml
[INFO] crate Ethan826/connect-four already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Ethan826/connect-four against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-5/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Ethan826/connect-four:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 54f04eb3495a6cde7f037ba521b5eb278f601502a55022de97a12e3b4e0136a7
[INFO] running `"docker" "start" "-a" "54f04eb3495a6cde7f037ba521b5eb278f601502a55022de97a12e3b4e0136a7"`
[INFO] [stderr]     Checking connect_four v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `longest_runs`
[INFO] [stderr]    --> src/game.rs:128:37
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn score_incomplete_game(&self, longest_runs: &LongestRuns) -> isize {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_longest_runs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `longest_runs`
[INFO] [stderr]    --> src/game.rs:128:37
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn score_incomplete_game(&self, longest_runs: &LongestRuns) -> isize {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_longest_runs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `"docker" "inspect" "54f04eb3495a6cde7f037ba521b5eb278f601502a55022de97a12e3b4e0136a7"`
[INFO] running `"docker" "rm" "-f" "54f04eb3495a6cde7f037ba521b5eb278f601502a55022de97a12e3b4e0136a7"`
[INFO] [stdout] 54f04eb3495a6cde7f037ba521b5eb278f601502a55022de97a12e3b4e0136a7