[INFO] updating cached repository ddrcoder/rust-solver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ddrcoder/rust-solver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ddrcoder/rust-solver" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/ddrcoder/rust-solver"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/ddrcoder/rust-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ddrcoder/rust-solver" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/ddrcoder/rust-solver"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/ddrcoder/rust-solver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3474e14084e2008393867da94a4923c5b1eebcc6
[INFO] sha for GitHub repo ddrcoder/rust-solver: 3474e14084e2008393867da94a4923c5b1eebcc6
[INFO] validating manifest of ddrcoder/rust-solver on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ddrcoder/rust-solver on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ddrcoder/rust-solver
[INFO] finished frobbing ddrcoder/rust-solver
[INFO] frobbed toml for ddrcoder/rust-solver written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/ddrcoder/rust-solver/Cargo.toml
[INFO] started frobbing ddrcoder/rust-solver
[INFO] finished frobbing ddrcoder/rust-solver
[INFO] frobbed toml for ddrcoder/rust-solver written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/ddrcoder/rust-solver/Cargo.toml
[INFO] crate ddrcoder/rust-solver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ddrcoder/rust-solver against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-7/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/ddrcoder/rust-solver:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0f073412c97831c44ace4a46daae79d82476e6c794c4fa86124d532b38a65ebf
[INFO] running `"docker" "start" "-a" "0f073412c97831c44ace4a46daae79d82476e6c794c4fa86124d532b38a65ebf"`
[INFO] [stderr]     Checking n_array v0.1.3
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking search v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:59:10
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let (x, y) = m.initial_snake[0];
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let (x, y) = m.initial_snake[0];
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `worse`
[INFO] [stderr]    --> src/snake.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |         let worse = if a.fruits_left.count_ones() > b.fruits_left.count_ones() {
[INFO] [stderr]     |             ^^^^^ help: consider prefixing with an underscore: `_worse`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:59:10
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let (x, y) = m.initial_snake[0];
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let (x, y) = m.initial_snake[0];
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `worse`
[INFO] [stderr]    --> src/snake.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |         let worse = if a.fruits_left.count_ones() > b.fruits_left.count_ones() {
[INFO] [stderr]     |             ^^^^^ help: consider prefixing with an underscore: `_worse`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `char`
[INFO] [stderr]   --> src/snake.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn char(&self, x: usize, y: usize) -> char {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/snake.rs:161:5
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn new() -> State {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `char`
[INFO] [stderr]   --> src/snake.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn char(&self, x: usize, y: usize) -> char {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/snake.rs:161:5
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn new() -> State {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `"docker" "inspect" "0f073412c97831c44ace4a46daae79d82476e6c794c4fa86124d532b38a65ebf"`
[INFO] running `"docker" "rm" "-f" "0f073412c97831c44ace4a46daae79d82476e6c794c4fa86124d532b38a65ebf"`
[INFO] [stdout] 0f073412c97831c44ace4a46daae79d82476e6c794c4fa86124d532b38a65ebf