Nov 17 16:51:49.268 INFO testing Anfauglith/sudoku against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 16:51:49.268 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 16:51:49.760 INFO [stdout] 9837ae6ed5704699b1d6b8d2cd40950fbb583c78a8a8a9a1fadce7b437decf4c
Nov 17 16:51:49.764 INFO running `"docker" "start" "-a" "9837ae6ed5704699b1d6b8d2cd40950fbb583c78a8a8a9a1fadce7b437decf4c"`
Nov 17 16:51:50.911 INFO [stderr] usermod: no changes
Nov 17 16:51:50.955 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Nov 17 16:51:51.455 INFO [stderr] warning: constant item is never used: `CANDIDATE_MASK`
Nov 17 16:51:51.455 INFO [stderr]  --> src/field.rs:2:1
Nov 17 16:51:51.455 INFO [stderr]   |
Nov 17 16:51:51.455 INFO [stderr] 2 | const CANDIDATE_MASK: u16 = 0b0000_0011_1111_1110; // 0x03FE
Nov 17 16:51:51.455 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.455 INFO [stderr]   |
Nov 17 16:51:51.455 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 16:51:51.456 INFO [stderr] 
Nov 17 16:51:51.456 INFO [stderr] warning: struct is never constructed: `Field`
Nov 17 16:51:51.456 INFO [stderr]  --> src/field.rs:4:1
Nov 17 16:51:51.456 INFO [stderr]   |
Nov 17 16:51:51.456 INFO [stderr] 4 | pub struct Field {
Nov 17 16:51:51.456 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Nov 17 16:51:51.456 INFO [stderr] 
Nov 17 16:51:51.456 INFO [stderr] warning: struct is never constructed: `Cell`
Nov 17 16:51:51.456 INFO [stderr]  --> src/field.rs:8:1
Nov 17 16:51:51.456 INFO [stderr]   |
Nov 17 16:51:51.456 INFO [stderr] 8 | pub struct Cell {
Nov 17 16:51:51.456 INFO [stderr]   | ^^^^^^^^^^^^^^^
Nov 17 16:51:51.456 INFO [stderr] 
Nov 17 16:51:51.456 INFO [stderr] warning: method is never used: `empty_cell`
Nov 17 16:51:51.456 INFO [stderr]   --> src/field.rs:16:5
Nov 17 16:51:51.456 INFO [stderr]    |
Nov 17 16:51:51.456 INFO [stderr] 16 |     pub fn empty_cell() -> Cell {
Nov 17 16:51:51.456 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.456 INFO [stderr] 
Nov 17 16:51:51.456 INFO [stderr] warning: method is never used: `fixed_cell`
Nov 17 16:51:51.456 INFO [stderr]   --> src/field.rs:24:5
Nov 17 16:51:51.456 INFO [stderr]    |
Nov 17 16:51:51.457 INFO [stderr] 24 |     pub fn fixed_cell(digit: u8) -> Cell {
Nov 17 16:51:51.457 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.457 INFO [stderr] 
Nov 17 16:51:51.457 INFO [stderr] warning: method is never used: `is_solved`
Nov 17 16:51:51.457 INFO [stderr]   --> src/field.rs:32:5
Nov 17 16:51:51.457 INFO [stderr]    |
Nov 17 16:51:51.457 INFO [stderr] 32 |     pub fn is_solved(&self) -> bool {
Nov 17 16:51:51.457 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.457 INFO [stderr] 
Nov 17 16:51:51.457 INFO [stderr] warning: method is never used: `is_fixed`
Nov 17 16:51:51.457 INFO [stderr]   --> src/field.rs:39:5
Nov 17 16:51:51.457 INFO [stderr]    |
Nov 17 16:51:51.457 INFO [stderr] 39 |     pub fn is_fixed(&self) -> bool {
Nov 17 16:51:51.457 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.457 INFO [stderr] 
Nov 17 16:51:51.457 INFO [stderr] warning: method is never used: `get_digit`
Nov 17 16:51:51.457 INFO [stderr]   --> src/field.rs:43:5
Nov 17 16:51:51.457 INFO [stderr]    |
Nov 17 16:51:51.457 INFO [stderr] 43 |     pub fn get_digit(&self) -> Option<u8> {
Nov 17 16:51:51.457 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.457 INFO [stderr] 
Nov 17 16:51:51.457 INFO [stderr] warning: method is never used: `fix`
Nov 17 16:51:51.458 INFO [stderr]   --> src/field.rs:47:5
Nov 17 16:51:51.458 INFO [stderr]    |
Nov 17 16:51:51.458 INFO [stderr] 47 |     fn fix(&mut self) -> bool {
Nov 17 16:51:51.458 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.458 INFO [stderr] 
Nov 17 16:51:51.458 INFO [stderr] warning: method is never used: `set_to`
Nov 17 16:51:51.458 INFO [stderr]   --> src/field.rs:55:5
Nov 17 16:51:51.463 INFO [stderr]    |
Nov 17 16:51:51.463 INFO [stderr] 55 |     fn set_to(&mut self, digit: u8) -> bool {
Nov 17 16:51:51.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `fix_to`
Nov 17 16:51:51.463 INFO [stderr]   --> src/field.rs:66:5
Nov 17 16:51:51.463 INFO [stderr]    |
Nov 17 16:51:51.463 INFO [stderr] 66 |     pub fn fix_to(&mut self, digit: u8) -> bool {
Nov 17 16:51:51.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `has_candidate`
Nov 17 16:51:51.463 INFO [stderr]   --> src/field.rs:73:5
Nov 17 16:51:51.463 INFO [stderr]    |
Nov 17 16:51:51.463 INFO [stderr] 73 |     pub fn has_candidate(&self, candidate: u8) -> bool {
Nov 17 16:51:51.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `get_candidates`
Nov 17 16:51:51.463 INFO [stderr]   --> src/field.rs:77:5
Nov 17 16:51:51.463 INFO [stderr]    |
Nov 17 16:51:51.463 INFO [stderr] 77 |     pub fn get_candidates(&self) -> u16 {
Nov 17 16:51:51.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `get_candidate_vector`
Nov 17 16:51:51.463 INFO [stderr]   --> src/field.rs:81:5
Nov 17 16:51:51.463 INFO [stderr]    |
Nov 17 16:51:51.463 INFO [stderr] 81 |     pub fn get_candidate_vector(&self) -> Vec<u8> {
Nov 17 16:51:51.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `remove_candidate`
Nov 17 16:51:51.463 INFO [stderr]   --> src/field.rs:91:5
Nov 17 16:51:51.463 INFO [stderr]    |
Nov 17 16:51:51.463 INFO [stderr] 91 |     pub fn remove_candidate(&mut self, candidate: u8) {
Nov 17 16:51:51.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `remove_candidates`
Nov 17 16:51:51.463 INFO [stderr]   --> src/field.rs:96:5
Nov 17 16:51:51.463 INFO [stderr]    |
Nov 17 16:51:51.463 INFO [stderr] 96 |     pub fn remove_candidates(&mut self, candidates: Vec<u8>) {
Nov 17 16:51:51.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `has_single_candidate`
Nov 17 16:51:51.463 INFO [stderr]    --> src/field.rs:102:5
Nov 17 16:51:51.463 INFO [stderr]     |
Nov 17 16:51:51.463 INFO [stderr] 102 |     pub fn has_single_candidate(&self) -> bool {
Nov 17 16:51:51.463 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `get_naked_single`
Nov 17 16:51:51.463 INFO [stderr]    --> src/field.rs:106:5
Nov 17 16:51:51.463 INFO [stderr]     |
Nov 17 16:51:51.463 INFO [stderr] 106 |     pub fn get_naked_single(&self) -> Option<u8> {
Nov 17 16:51:51.463 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.463 INFO [stderr] 
Nov 17 16:51:51.463 INFO [stderr] warning: method is never used: `try_solve`
Nov 17 16:51:51.471 INFO [stderr]    --> src/field.rs:119:5
Nov 17 16:51:51.471 INFO [stderr]     |
Nov 17 16:51:51.471 INFO [stderr] 119 |     pub fn try_solve(&mut self) -> bool {
Nov 17 16:51:51.471 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:51.471 INFO [stderr] 
Nov 17 16:51:51.815 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Nov 17 16:51:51.816 INFO [stderr] su: No module specific data is present
Nov 17 16:51:52.508 INFO running `"docker" "inspect" "9837ae6ed5704699b1d6b8d2cd40950fbb583c78a8a8a9a1fadce7b437decf4c"`
Nov 17 16:51:52.797 INFO running `"docker" "rm" "-f" "9837ae6ed5704699b1d6b8d2cd40950fbb583c78a8a8a9a1fadce7b437decf4c"`
Nov 17 16:51:53.159 INFO [stdout] 9837ae6ed5704699b1d6b8d2cd40950fbb583c78a8a8a9a1fadce7b437decf4c
Nov 17 16:51:53.165 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 16:51:53.628 INFO [stdout] 5aa79df886ba147d879e1f8e644132d84d1a51f0cdb1f68f502d15b16e568995
Nov 17 16:51:53.635 INFO running `"docker" "start" "-a" "5aa79df886ba147d879e1f8e644132d84d1a51f0cdb1f68f502d15b16e568995"`
Nov 17 16:51:55.423 INFO [stderr] usermod: no changes
Nov 17 16:51:55.475 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Nov 17 16:51:56.065 INFO [stderr] warning: struct is never constructed: `Field`
Nov 17 16:51:56.065 INFO [stderr]  --> src/field.rs:4:1
Nov 17 16:51:56.065 INFO [stderr]   |
Nov 17 16:51:56.065 INFO [stderr] 4 | pub struct Field {
Nov 17 16:51:56.065 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Nov 17 16:51:56.065 INFO [stderr]   |
Nov 17 16:51:56.066 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 16:51:56.066 INFO [stderr] 
Nov 17 16:51:56.066 INFO [stderr] warning: method is never used: `is_solved`
Nov 17 16:51:56.066 INFO [stderr]   --> src/field.rs:32:5
Nov 17 16:51:56.066 INFO [stderr]    |
Nov 17 16:51:56.066 INFO [stderr] 32 |     pub fn is_solved(&self) -> bool {
Nov 17 16:51:56.066 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:51:56.066 INFO [stderr] 
Nov 17 16:51:56.707 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
Nov 17 16:51:56.713 INFO [stderr] su: No module specific data is present
Nov 17 16:51:57.613 INFO running `"docker" "inspect" "5aa79df886ba147d879e1f8e644132d84d1a51f0cdb1f68f502d15b16e568995"`
Nov 17 16:51:57.937 INFO running `"docker" "rm" "-f" "5aa79df886ba147d879e1f8e644132d84d1a51f0cdb1f68f502d15b16e568995"`
Nov 17 16:51:58.177 INFO [stdout] 5aa79df886ba147d879e1f8e644132d84d1a51f0cdb1f68f502d15b16e568995
Nov 17 16:51:58.183 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 16:51:58.707 INFO [stdout] 94e07abf4a9744ddd7b4c4378cd0c59a8083a2b632d9e5fe5fc8bc80ecb81dcf
Nov 17 16:51:58.717 INFO running `"docker" "start" "-a" "94e07abf4a9744ddd7b4c4378cd0c59a8083a2b632d9e5fe5fc8bc80ecb81dcf"`
Nov 17 16:51:59.808 INFO [stderr] usermod: no changes
Nov 17 16:51:59.859 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 17 16:51:59.867 INFO [stderr]      Running /target/debug/deps/sudoku-2a896fde63dc7ae9
Nov 17 16:51:59.875 INFO [stderr] su: No module specific data is present
Nov 17 16:51:59.875 INFO [stdout] 
Nov 17 16:51:59.875 INFO [stdout] running 2 tests
Nov 17 16:51:59.875 INFO [stdout] test field::tests::cell_fixing ... ok
Nov 17 16:51:59.875 INFO [stdout] test field::tests::removing_candidates_and_solving ... ok
Nov 17 16:51:59.875 INFO [stdout] 
Nov 17 16:51:59.875 INFO [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:51:59.875 INFO [stdout] 
Nov 17 16:52:00.805 INFO running `"docker" "inspect" "94e07abf4a9744ddd7b4c4378cd0c59a8083a2b632d9e5fe5fc8bc80ecb81dcf"`
Nov 17 16:52:01.101 INFO running `"docker" "rm" "-f" "94e07abf4a9744ddd7b4c4378cd0c59a8083a2b632d9e5fe5fc8bc80ecb81dcf"`
Nov 17 16:52:01.410 INFO [stdout] 94e07abf4a9744ddd7b4c4378cd0c59a8083a2b632d9e5fe5fc8bc80ecb81dcf