[INFO] updating cached repository lesguillemets/curly-octo-funicular
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lesguillemets/curly-octo-funicular
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lesguillemets/curly-octo-funicular" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/lesguillemets/curly-octo-funicular"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/lesguillemets/curly-octo-funicular'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lesguillemets/curly-octo-funicular" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/lesguillemets/curly-octo-funicular"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/lesguillemets/curly-octo-funicular'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bda6392dece8b454886281db0d4d85f7e1381432
[INFO] sha for GitHub repo lesguillemets/curly-octo-funicular: bda6392dece8b454886281db0d4d85f7e1381432
[INFO] validating manifest of lesguillemets/curly-octo-funicular 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 lesguillemets/curly-octo-funicular 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 lesguillemets/curly-octo-funicular
[INFO] finished frobbing lesguillemets/curly-octo-funicular
[INFO] frobbed toml for lesguillemets/curly-octo-funicular written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/lesguillemets/curly-octo-funicular/Cargo.toml
[INFO] started frobbing lesguillemets/curly-octo-funicular
[INFO] finished frobbing lesguillemets/curly-octo-funicular
[INFO] frobbed toml for lesguillemets/curly-octo-funicular written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/lesguillemets/curly-octo-funicular/Cargo.toml
[INFO] crate lesguillemets/curly-octo-funicular 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking lesguillemets/curly-octo-funicular against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-2/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/lesguillemets/curly-octo-funicular:/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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5f1915d5ee4b47517396adc90cfbd1d378fc558ba2fb3fbdcad823913ff74929
[INFO] running `"docker" "start" "-a" "5f1915d5ee4b47517396adc90cfbd1d378fc558ba2fb3fbdcad823913ff74929"`
[INFO] [stderr]     Checking reversi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/board.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/face.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn main_loop(board: &Board, player: Face) -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] ...
[INFO] [stderr] 22 |             main_loop(&b, player.not())
[INFO] [stderr]    |             --------------------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 26 |             main_loop(board, player)
[INFO] [stderr]    |             ------------------------ recursive call site
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unconditional_recursion)] on by default
[INFO] [stderr]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/board.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/face.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `count_bw`
[INFO] [stderr]   --> src/board.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn count_bw(&self) -> (usize, usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_count`
[INFO] [stderr]   --> src/board.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn print_count(&self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `flip`
[INFO] [stderr]   --> src/face.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn flip(&mut self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]   --> src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn main_loop(board: &Board, player: Face) -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] ...
[INFO] [stderr] 22 |             main_loop(&b, player.not())
[INFO] [stderr]    |             --------------------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 26 |             main_loop(board, player)
[INFO] [stderr]    |             ------------------------ recursive call site
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unconditional_recursion)] on by default
[INFO] [stderr]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `count_bw`
[INFO] [stderr]   --> src/board.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn count_bw(&self) -> (usize, usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_count`
[INFO] [stderr]   --> src/board.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn print_count(&self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `flip`
[INFO] [stderr]   --> src/face.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn flip(&mut self) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "5f1915d5ee4b47517396adc90cfbd1d378fc558ba2fb3fbdcad823913ff74929"`
[INFO] running `"docker" "rm" "-f" "5f1915d5ee4b47517396adc90cfbd1d378fc558ba2fb3fbdcad823913ff74929"`
[INFO] [stdout] 5f1915d5ee4b47517396adc90cfbd1d378fc558ba2fb3fbdcad823913ff74929