Nov 17 15:35:10.338 INFO testing ErikPartridge/sudoku-generator against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 15:35:10.338 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 15:35:10.518 INFO [stdout] 41682632f3d81612f03ee49daadcf00911f82250fe31ec1febc54565db0e42a8
Nov 17 15:35:10.520 INFO running `"docker" "start" "-a" "41682632f3d81612f03ee49daadcf00911f82250fe31ec1febc54565db0e42a8"`
Nov 17 15:35:10.898 INFO [stderr] usermod: no changes
Nov 17 15:35:10.930 INFO [stderr]    Compiling sudoku-generator v0.1.0 (/source)
Nov 17 15:35:11.238 INFO [stderr] warning: unused import: `freedom::Freedom`
Nov 17 15:35:11.238 INFO [stderr]  --> src/main.rs:3:5
Nov 17 15:35:11.238 INFO [stderr]   |
Nov 17 15:35:11.238 INFO [stderr] 3 | use freedom::Freedom;
Nov 17 15:35:11.238 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Nov 17 15:35:11.238 INFO [stderr]   |
Nov 17 15:35:11.238 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 15:35:11.238 INFO [stderr] 
Nov 17 15:35:11.238 INFO [stderr] warning: unused import: `problem::Problem`
Nov 17 15:35:11.238 INFO [stderr]  --> src/main.rs:4:5
Nov 17 15:35:11.238 INFO [stderr]   |
Nov 17 15:35:11.238 INFO [stderr] 4 | use problem::Problem;
Nov 17 15:35:11.238 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Nov 17 15:35:11.238 INFO [stderr] 
Nov 17 15:35:11.286 INFO [stderr] warning: unused variable: `j`
Nov 17 15:35:11.286 INFO [stderr]   --> src/freedom.rs:28:9
Nov 17 15:35:11.286 INFO [stderr]    |
Nov 17 15:35:11.286 INFO [stderr] 28 |     for j in 0..3 {
Nov 17 15:35:11.286 INFO [stderr]    |         ^ help: consider using `_j` instead
Nov 17 15:35:11.286 INFO [stderr]    |
Nov 17 15:35:11.286 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 17 15:35:11.287 INFO [stderr] 
Nov 17 15:35:11.294 INFO [stderr] warning: constant item is never used: `ORDER`
Nov 17 15:35:11.294 INFO [stderr]  --> src/freedom.rs:1:1
Nov 17 15:35:11.294 INFO [stderr]   |
Nov 17 15:35:11.294 INFO [stderr] 1 | const ORDER: u8 = 3;
Nov 17 15:35:11.294 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.294 INFO [stderr]   |
Nov 17 15:35:11.294 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 15:35:11.294 INFO [stderr] 
Nov 17 15:35:11.294 INFO [stderr] warning: constant item is never used: `DIM`
Nov 17 15:35:11.294 INFO [stderr]  --> src/freedom.rs:2:1
Nov 17 15:35:11.294 INFO [stderr]   |
Nov 17 15:35:11.294 INFO [stderr] 2 | const DIM: u8 = ORDER * ORDER;
Nov 17 15:35:11.294 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.294 INFO [stderr] 
Nov 17 15:35:11.296 INFO [stderr] warning: constant item is never used: `ELEMENTS`
Nov 17 15:35:11.296 INFO [stderr]  --> src/freedom.rs:3:1
Nov 17 15:35:11.296 INFO [stderr]   |
Nov 17 15:35:11.296 INFO [stderr] 3 | const ELEMENTS: u8 = DIM * DIM;
Nov 17 15:35:11.296 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.296 INFO [stderr] 
Nov 17 15:35:11.296 INFO [stderr] warning: constant item is never used: `ALL_VALUES`
Nov 17 15:35:11.296 INFO [stderr]  --> src/freedom.rs:4:1
Nov 17 15:35:11.296 INFO [stderr]   |
Nov 17 15:35:11.296 INFO [stderr] 4 | const ALL_VALUES: u16 = (1 << DIM) - 1;
Nov 17 15:35:11.296 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.296 INFO [stderr] 
Nov 17 15:35:11.296 INFO [stderr] warning: struct is never constructed: `Freedom`
Nov 17 15:35:11.296 INFO [stderr]  --> src/freedom.rs:7:1
Nov 17 15:35:11.296 INFO [stderr]   |
Nov 17 15:35:11.296 INFO [stderr] 7 | pub struct Freedom {
Nov 17 15:35:11.296 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.296 INFO [stderr] 
Nov 17 15:35:11.296 INFO [stderr] warning: function is never used: `singleton`
Nov 17 15:35:11.296 INFO [stderr]   --> src/freedom.rs:11:1
Nov 17 15:35:11.296 INFO [stderr]    |
Nov 17 15:35:11.296 INFO [stderr] 11 | fn singleton(v: u16) -> u16 {
Nov 17 15:35:11.296 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.296 INFO [stderr] 
Nov 17 15:35:11.296 INFO [stderr] warning: function is never used: `freedom_eliminate`
Nov 17 15:35:11.296 INFO [stderr]   --> src/freedom.rs:16:1
Nov 17 15:35:11.296 INFO [stderr]    |
Nov 17 15:35:11.296 INFO [stderr] 16 | fn freedom_eliminate(f: &Freedom, col: u16, row: u16, value: u16) -> Freedom {
Nov 17 15:35:11.296 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.297 INFO [stderr] 
Nov 17 15:35:11.297 INFO [stderr] warning: function is never used: `create_freedom`
Nov 17 15:35:11.297 INFO [stderr]   --> src/freedom.rs:38:1
Nov 17 15:35:11.297 INFO [stderr]    |
Nov 17 15:35:11.297 INFO [stderr] 38 | fn create_freedom(problem: &Problem) -> Freedom {
Nov 17 15:35:11.297 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.297 INFO [stderr] 
Nov 17 15:35:11.297 INFO [stderr] warning: function is never used: `sanity_check`
Nov 17 15:35:11.297 INFO [stderr]   --> src/freedom.rs:52:1
Nov 17 15:35:11.297 INFO [stderr]    |
Nov 17 15:35:11.297 INFO [stderr] 52 | fn sanity_check(problem: &Problem, freedom: &Freedom) -> bool {
Nov 17 15:35:11.297 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.297 INFO [stderr] 
Nov 17 15:35:11.297 INFO [stderr] warning: function is never used: `search_least_free`
Nov 17 15:35:11.297 INFO [stderr]   --> src/freedom.rs:63:1
Nov 17 15:35:11.297 INFO [stderr]    |
Nov 17 15:35:11.297 INFO [stderr] 63 | fn search_least_free(problem: &Problem, freedom: &Freedom) -> u16 {
Nov 17 15:35:11.297 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.297 INFO [stderr] 
Nov 17 15:35:11.297 INFO [stderr] warning: struct is never constructed: `Problem`
Nov 17 15:35:11.297 INFO [stderr]  --> src/problem.rs:1:1
Nov 17 15:35:11.297 INFO [stderr]   |
Nov 17 15:35:11.297 INFO [stderr] 1 | pub struct Problem {
Nov 17 15:35:11.297 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Nov 17 15:35:11.297 INFO [stderr] 
Nov 17 15:35:11.451 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
Nov 17 15:35:11.454 INFO [stderr] su: No module specific data is present
Nov 17 15:35:11.773 INFO running `"docker" "inspect" "41682632f3d81612f03ee49daadcf00911f82250fe31ec1febc54565db0e42a8"`
Nov 17 15:35:11.880 INFO running `"docker" "rm" "-f" "41682632f3d81612f03ee49daadcf00911f82250fe31ec1febc54565db0e42a8"`
Nov 17 15:35:11.958 INFO [stdout] 41682632f3d81612f03ee49daadcf00911f82250fe31ec1febc54565db0e42a8
Nov 17 15:35:11.958 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 15:35:12.166 INFO [stdout] 804295bcfa9824b391ee1089b8af5cee4db69da8adbcf40187ed67bf714e2e37
Nov 17 15:35:12.170 INFO running `"docker" "start" "-a" "804295bcfa9824b391ee1089b8af5cee4db69da8adbcf40187ed67bf714e2e37"`
Nov 17 15:35:12.572 INFO [stderr] usermod: no changes
Nov 17 15:35:12.600 INFO [stderr]    Compiling sudoku-generator v0.1.0 (/source)
Nov 17 15:35:12.921 INFO [stderr] warning: unused import: `freedom::Freedom`
Nov 17 15:35:12.921 INFO [stderr]  --> src/main.rs:3:5
Nov 17 15:35:12.921 INFO [stderr]   |
Nov 17 15:35:12.921 INFO [stderr] 3 | use freedom::Freedom;
Nov 17 15:35:12.921 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Nov 17 15:35:12.921 INFO [stderr]   |
Nov 17 15:35:12.921 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 15:35:12.921 INFO [stderr] 
Nov 17 15:35:12.921 INFO [stderr] warning: unused import: `problem::Problem`
Nov 17 15:35:12.921 INFO [stderr]  --> src/main.rs:4:5
Nov 17 15:35:12.921 INFO [stderr]   |
Nov 17 15:35:12.921 INFO [stderr] 4 | use problem::Problem;
Nov 17 15:35:12.921 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Nov 17 15:35:12.921 INFO [stderr] 
Nov 17 15:35:12.963 INFO [stderr] warning: unused variable: `j`
Nov 17 15:35:12.963 INFO [stderr]   --> src/freedom.rs:28:9
Nov 17 15:35:12.963 INFO [stderr]    |
Nov 17 15:35:12.963 INFO [stderr] 28 |     for j in 0..3 {
Nov 17 15:35:12.963 INFO [stderr]    |         ^ help: consider using `_j` instead
Nov 17 15:35:12.963 INFO [stderr]    |
Nov 17 15:35:12.963 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 17 15:35:12.963 INFO [stderr] 
Nov 17 15:35:12.970 INFO [stderr] warning: constant item is never used: `ORDER`
Nov 17 15:35:12.970 INFO [stderr]  --> src/freedom.rs:1:1
Nov 17 15:35:12.970 INFO [stderr]   |
Nov 17 15:35:12.970 INFO [stderr] 1 | const ORDER: u8 = 3;
Nov 17 15:35:12.970 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.970 INFO [stderr]   |
Nov 17 15:35:12.970 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 15:35:12.970 INFO [stderr] 
Nov 17 15:35:12.970 INFO [stderr] warning: constant item is never used: `DIM`
Nov 17 15:35:12.970 INFO [stderr]  --> src/freedom.rs:2:1
Nov 17 15:35:12.970 INFO [stderr]   |
Nov 17 15:35:12.970 INFO [stderr] 2 | const DIM: u8 = ORDER * ORDER;
Nov 17 15:35:12.970 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.970 INFO [stderr] 
Nov 17 15:35:12.970 INFO [stderr] warning: constant item is never used: `ELEMENTS`
Nov 17 15:35:12.970 INFO [stderr]  --> src/freedom.rs:3:1
Nov 17 15:35:12.970 INFO [stderr]   |
Nov 17 15:35:12.970 INFO [stderr] 3 | const ELEMENTS: u8 = DIM * DIM;
Nov 17 15:35:12.970 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.970 INFO [stderr] 
Nov 17 15:35:12.970 INFO [stderr] warning: constant item is never used: `ALL_VALUES`
Nov 17 15:35:12.970 INFO [stderr]  --> src/freedom.rs:4:1
Nov 17 15:35:12.970 INFO [stderr]   |
Nov 17 15:35:12.970 INFO [stderr] 4 | const ALL_VALUES: u16 = (1 << DIM) - 1;
Nov 17 15:35:12.970 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.970 INFO [stderr] 
Nov 17 15:35:12.970 INFO [stderr] warning: struct is never constructed: `Freedom`
Nov 17 15:35:12.970 INFO [stderr]  --> src/freedom.rs:7:1
Nov 17 15:35:12.970 INFO [stderr]   |
Nov 17 15:35:12.970 INFO [stderr] 7 | pub struct Freedom {
Nov 17 15:35:12.970 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.970 INFO [stderr] 
Nov 17 15:35:12.970 INFO [stderr] warning: function is never used: `singleton`
Nov 17 15:35:12.970 INFO [stderr]   --> src/freedom.rs:11:1
Nov 17 15:35:12.970 INFO [stderr]    |
Nov 17 15:35:12.970 INFO [stderr] 11 | fn singleton(v: u16) -> u16 {
Nov 17 15:35:12.970 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.970 INFO [stderr] 
Nov 17 15:35:12.970 INFO [stderr] warning: function is never used: `freedom_eliminate`
Nov 17 15:35:12.970 INFO [stderr]   --> src/freedom.rs:16:1
Nov 17 15:35:12.970 INFO [stderr]    |
Nov 17 15:35:12.970 INFO [stderr] 16 | fn freedom_eliminate(f: &Freedom, col: u16, row: u16, value: u16) -> Freedom {
Nov 17 15:35:12.970 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.970 INFO [stderr] 
Nov 17 15:35:12.971 INFO [stderr] warning: function is never used: `create_freedom`
Nov 17 15:35:12.971 INFO [stderr]   --> src/freedom.rs:38:1
Nov 17 15:35:12.971 INFO [stderr]    |
Nov 17 15:35:12.971 INFO [stderr] 38 | fn create_freedom(problem: &Problem) -> Freedom {
Nov 17 15:35:12.971 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.971 INFO [stderr] 
Nov 17 15:35:12.971 INFO [stderr] warning: function is never used: `sanity_check`
Nov 17 15:35:12.971 INFO [stderr]   --> src/freedom.rs:52:1
Nov 17 15:35:12.971 INFO [stderr]    |
Nov 17 15:35:12.971 INFO [stderr] 52 | fn sanity_check(problem: &Problem, freedom: &Freedom) -> bool {
Nov 17 15:35:12.971 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.971 INFO [stderr] 
Nov 17 15:35:12.971 INFO [stderr] warning: function is never used: `search_least_free`
Nov 17 15:35:12.971 INFO [stderr]   --> src/freedom.rs:63:1
Nov 17 15:35:12.971 INFO [stderr]    |
Nov 17 15:35:12.971 INFO [stderr] 63 | fn search_least_free(problem: &Problem, freedom: &Freedom) -> u16 {
Nov 17 15:35:12.971 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.971 INFO [stderr] 
Nov 17 15:35:12.971 INFO [stderr] warning: struct is never constructed: `Problem`
Nov 17 15:35:12.971 INFO [stderr]  --> src/problem.rs:1:1
Nov 17 15:35:12.971 INFO [stderr]   |
Nov 17 15:35:12.971 INFO [stderr] 1 | pub struct Problem {
Nov 17 15:35:12.971 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Nov 17 15:35:12.971 INFO [stderr] 
Nov 17 15:35:13.255 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Nov 17 15:35:13.256 INFO [stderr] su: No module specific data is present
Nov 17 15:35:13.534 INFO running `"docker" "inspect" "804295bcfa9824b391ee1089b8af5cee4db69da8adbcf40187ed67bf714e2e37"`
Nov 17 15:35:13.625 INFO running `"docker" "rm" "-f" "804295bcfa9824b391ee1089b8af5cee4db69da8adbcf40187ed67bf714e2e37"`
Nov 17 15:35:13.899 INFO [stdout] 804295bcfa9824b391ee1089b8af5cee4db69da8adbcf40187ed67bf714e2e37
Nov 17 15:35:13.905 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 15:35:14.203 INFO [stdout] f9cace62176636302a68ee19f84631a12fb50c442c3abf38a6b3f29d65ddad7e
Nov 17 15:35:14.205 INFO running `"docker" "start" "-a" "f9cace62176636302a68ee19f84631a12fb50c442c3abf38a6b3f29d65ddad7e"`
Nov 17 15:35:14.745 INFO [stderr] usermod: no changes
Nov 17 15:35:14.788 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 17 15:35:14.788 INFO [stderr]      Running /target/debug/deps/sudoku_generator-a6b37deaac612c4d
Nov 17 15:35:14.791 INFO [stdout] 
Nov 17 15:35:14.791 INFO [stdout] running 0 tests
Nov 17 15:35:14.791 INFO [stdout] 
Nov 17 15:35:14.791 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 15:35:14.791 INFO [stdout] 
Nov 17 15:35:14.794 INFO [stderr] su: No module specific data is present
Nov 17 15:35:15.184 INFO running `"docker" "inspect" "f9cace62176636302a68ee19f84631a12fb50c442c3abf38a6b3f29d65ddad7e"`
Nov 17 15:35:15.309 INFO running `"docker" "rm" "-f" "f9cace62176636302a68ee19f84631a12fb50c442c3abf38a6b3f29d65ddad7e"`
Nov 17 15:35:15.439 INFO [stdout] f9cace62176636302a68ee19f84631a12fb50c442c3abf38a6b3f29d65ddad7e