[INFO] fetching crate optimization_tools 0.1.0...
[INFO] testing optimization_tools-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate optimization_tools 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate optimization_tools 0.1.0
[INFO] finished tweaking crates.io crate optimization_tools 0.1.0
[INFO] tweaked toml for crates.io crate optimization_tools 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate optimization_tools 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate optimization_tools 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f8fd9ef0cedd929d1dcc208fcb1101e3f46834a7c26d0c2229908e4930e4a4d
[INFO] running `Command { std: "docker" "start" "-a" "5f8fd9ef0cedd929d1dcc208fcb1101e3f46834a7c26d0c2229908e4930e4a4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f8fd9ef0cedd929d1dcc208fcb1101e3f46834a7c26d0c2229908e4930e4a4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f8fd9ef0cedd929d1dcc208fcb1101e3f46834a7c26d0c2229908e4930e4a4d", kill_on_drop: false }`
[INFO] [stdout] 5f8fd9ef0cedd929d1dcc208fcb1101e3f46834a7c26d0c2229908e4930e4a4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0a6c5e6c177b9aa21a398e2301a6b8c17176cd5c09d208e21c3242450cf9fe4
[INFO] running `Command { std: "docker" "start" "-a" "d0a6c5e6c177b9aa21a398e2301a6b8c17176cd5c09d208e21c3242450cf9fe4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.68
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[INFO] [stderr]    Compiling optimization_tools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:261:30
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration
[INFO] [stdout]     |                              ^^^^^      ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration<'_>
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration > )
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration<'_> > )
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.46s
[INFO] running `Command { std: "docker" "inspect" "d0a6c5e6c177b9aa21a398e2301a6b8c17176cd5c09d208e21c3242450cf9fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a6c5e6c177b9aa21a398e2301a6b8c17176cd5c09d208e21c3242450cf9fe4", kill_on_drop: false }`
[INFO] [stdout] d0a6c5e6c177b9aa21a398e2301a6b8c17176cd5c09d208e21c3242450cf9fe4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8a0c45879a15126fe3c6e770e6ab343d4a93e90aa3b54182eddcb87a8955a3e
[INFO] running `Command { std: "docker" "start" "-a" "b8a0c45879a15126fe3c6e770e6ab343d4a93e90aa3b54182eddcb87a8955a3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
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[INFO] [stderr]    Compiling serde v1.0.188
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[INFO] [stderr]    Compiling diagnostics_tools v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
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[INFO] [stderr]    Compiling test_tools v0.5.0
[INFO] [stderr]    Compiling error_tools v0.4.0
[INFO] [stderr]    Compiling typing_tools v0.3.0
[INFO] [stderr]    Compiling iter_tools v0.4.0
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[INFO] [stderr]    Compiling derive_tools_meta v0.7.0
[INFO] [stderr]    Compiling variadic_from v0.2.0
[INFO] [stderr]    Compiling derive_tools v0.7.0
[INFO] [stderr]    Compiling derive_tools v0.8.0
[INFO] [stderr]    Compiling mod_interface_meta v0.6.0
[INFO] [stderr]    Compiling basic-toml v0.1.4
[INFO] [stderr]    Compiling mod_interface v0.6.0
[INFO] [stderr]    Compiling deterministic_rand v0.4.0
[INFO] [stderr]    Compiling optimization_tools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:261:30
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration
[INFO] [stdout]     |                              ^^^^^      ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration<'_>
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration > )
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration<'_> > )
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:261:30
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration
[INFO] [stdout]     |                              ^^^^^      ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration<'_>
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/optimization/mod.rs:285:25
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration > )
[INFO] [stdout]     |                         ^^^^^                        ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration<'_> > )
[INFO] [stdout]     |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 18.91s
[INFO] running `Command { std: "docker" "inspect" "b8a0c45879a15126fe3c6e770e6ab343d4a93e90aa3b54182eddcb87a8955a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8a0c45879a15126fe3c6e770e6ab343d4a93e90aa3b54182eddcb87a8955a3e", kill_on_drop: false }`
[INFO] [stdout] b8a0c45879a15126fe3c6e770e6ab343d4a93e90aa3b54182eddcb87a8955a3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 95ed29432b46048072589116841454ffb3e581a7104063c8e7a61e0e368937c4
[INFO] running `Command { std: "docker" "start" "-a" "95ed29432b46048072589116841454ffb3e581a7104063c8e7a61e0e368937c4", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] 
[INFO] [stderr]    --> src/optimization/mod.rs:261:30
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                              ^^^^^      ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 
[INFO] [stderr]     |                              |
[INFO] [stdout] 
[INFO] [stderr]     |                              the lifetime is elided here
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] 
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 261 |   pub fn initial_generation( &self ) -> SudokuGeneration<'_>
[INFO] [stderr]     |                                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/optimization/mod.rs:285:25
[INFO] [stderr]     |
[INFO] [stderr] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration > )
[INFO] [stderr]     |                         ^^^^^                        ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 285 |   pub fn solve_with_sa( &self ) -> ( Reason, Option< SudokuGeneration<'_> > )
[INFO] [stderr]     |                                                                      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `optimization_tools` (lib) generated 2 warnings (run `cargo fix --lib -p optimization_tools` to apply 2 suggestions)
[INFO] [stderr] warning: `optimization_tools` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/optimization_tools-c6c937730ca8e4c4)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/optimization_tools-e83a6c227e9adaaf)
[INFO] [stderr]      Running tests/board.rs (/opt/rustwide/target/debug/deps/board-dafbedc92a67234d)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test cell ... ok
[INFO] [stdout] test block ... ok
[INFO] [stdout] test block_missing_vals ... ok
[INFO] [stdout] test cells_swap ... ok
[INFO] [stdout] test cross_error ... ok
[INFO] [stdout] test select ... ok
[INFO] [stdout] test select_mut ... ok
[INFO] [stdout] test col ... ok
[INFO] [stdout] test row ... ok
[INFO] [stdout] test total_error ... ok
[INFO] [stdout] test from_string ... ok
[INFO] [stdout] test fill_missing_randomly ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/optimization.rs (/opt/rustwide/target/debug/deps/optimization-9a306f4869866a9f)
[INFO] [stderr] cell1 : CellIndex(5, 6)
[INFO] [stderr] SudokuPerson {
[INFO] [stderr]     board: 318643426
[INFO] [stderr]     426179795
[INFO] [stderr]     795582183
[INFO] [stderr]     625854752
[INFO] [stderr]     814379136
[INFO] [stderr]     793162948
[INFO] [stderr]     265136942
[INFO] [stderr]     419425761
[INFO] [stderr]     387897583
[INFO] [stderr]     ,
[INFO] [stderr]     cost: SudokuCost(
[INFO] [stderr]         45,
[INFO] [stderr]     ),
[INFO] [stderr] }
[INFO] [stderr] cell1 : CellIndex(5, 6)
[INFO] [stderr] cell2 : CellIndex(5, 7)
[INFO] [stderr] cell2 : CellIndex(4, 7)
[INFO] [stderr] cells_swap( CellIndex(5, 6), CellIndex(4, 7) )
[INFO] [stderr] SudokuPerson {
[INFO] [stderr]     board: 318643426
[INFO] [stderr]     426179795
[INFO] [stderr]     795582183
[INFO] [stderr]     625854752
[INFO] [stderr]     814379136
[INFO] [stderr]     793162948
[INFO] [stderr]     265132942
[INFO] [stderr]     419465761
[INFO] [stderr]     387897583
[INFO] [stderr]     ,
[INFO] [stderr]     cost: SudokuCost(
[INFO] [stderr]         48,
[INFO] [stderr]     ),
[INFO] [stderr] }
[INFO] [stderr] cell2 : CellIndex(5, 7)
[INFO] [stderr] cell2 : CellIndex(4, 7)
[INFO] [stderr] cells_swap( CellIndex(5, 6), CellIndex(4, 7) )
[INFO] [stderr] cell1 : CellIndex(2, 6)
[INFO] [stderr] cell2 : CellIndex(2, 7)
[INFO] [stderr] cell2 : CellIndex(2, 7)
[INFO] [stderr] cell2 : CellIndex(2, 8)
[INFO] [stderr] cells_swap( CellIndex(2, 6), CellIndex(2, 8) )
[INFO] [stderr] cell1 : CellIndex(2, 3)
[INFO] [stderr] cell1 : CellIndex(2, 6)
[INFO] [stderr] cell2 : CellIndex(2, 7)
[INFO] [stderr] cell2 : CellIndex(2, 7)
[INFO] [stderr] cell2 : CellIndex(2, 8)
[INFO] [stderr] cells_swap( CellIndex(2, 6), CellIndex(2, 8) )
[INFO] [stderr] SudokuPerson {
[INFO] [stderr]     board: 318643426
[INFO] [stderr]     426179795
[INFO] [stderr]     795582183
[INFO] [stderr]     625854752
[INFO] [stderr]     814379136
[INFO] [stderr]     793162948
[INFO] [stderr]     267132942
[INFO] [stderr]     419465761
[INFO] [stderr]     385897583
[INFO] [stderr]     ,
[INFO] [stderr]     cost: SudokuCost(
[INFO] [stderr]         48,
[INFO] [stderr]     ),
[INFO] [stderr] }
[INFO] [stderr] cell2 : CellIndex(2, 5)
[INFO] [stderr] cells_swap( CellIndex(2, 3), CellIndex(2, 5) )
[INFO] [stderr] cell1 : CellIndex(0, 4)
[INFO] [stderr] cell2 : CellIndex(0, 3)
[INFO] [stderr] cells_swap( CellIndex(0, 4), CellIndex(0, 3) )
[INFO] [stderr] cell1 : CellIndex(0, 7)
[INFO] [stderr] cell2 : CellIndex(2, 8)
[INFO] [stderr] cells_swap( CellIndex(0, 7), CellIndex(2, 8) )
[INFO] [stdout] test person_mutate ... ok
[INFO] [stderr] cell1 : CellIndex(1, 6)
[INFO] [stderr] cell1 : CellIndex(1, 7)
[INFO] [stderr] cell2 : CellIndex(0, 6)
[INFO] [stderr] cells_swap( CellIndex(1, 7), CellIndex(0, 6) )
[INFO] [stderr] cell1 : CellIndex(5, 3)
[INFO] [stdout] test initial_temperature ... ok
[INFO] [stderr] cell1 : CellIndex(3, 3)
[INFO] [stdout] 
[INFO] [stderr] cell1 : CellIndex(5, 4)
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] cell2 : CellIndex(5, 5)
[INFO] [stdout] 
[INFO] [stderr] cells_swap( CellIndex(5, 4), CellIndex(5, 5) )
[INFO] [stderr] cell1 : CellIndex(8, 4)
[INFO] [stderr] cell2 : CellIndex(6, 3)
[INFO] [stderr] cells_swap( CellIndex(8, 4), CellIndex(6, 3) )
[INFO] [stderr] cell1 : CellIndex(3, 5)
[INFO] [stderr] cell2 : CellIndex(4, 5)
[INFO] [stderr] cell2 : CellIndex(4, 4)
[INFO] [stderr] cell2 : CellIndex(5, 4)
[INFO] [stderr] cells_swap( CellIndex(3, 5), CellIndex(5, 4) )
[INFO] [stderr] cell1 : CellIndex(7, 5)
[INFO] [stderr] cell2 : CellIndex(6, 3)
[INFO] [stderr] cells_swap( CellIndex(7, 5), CellIndex(6, 3) )
[INFO] [stderr] cell1 : CellIndex(3, 0)
[INFO] [stderr] cell2 : CellIndex(4, 0)
[INFO] [stderr] cells_swap( CellIndex(3, 0), CellIndex(4, 0) )
[INFO] [stderr] cell1 : CellIndex(3, 5)
[INFO] [stderr] cell2 : CellIndex(3, 3)
[INFO] [stderr] cell2 : CellIndex(4, 5)
[INFO] [stderr] cell2 : CellIndex(4, 4)
[INFO] [stderr] cell2 : CellIndex(4, 4)
[INFO] [stderr] cell2 : CellIndex(4, 4)
[INFO] [stderr] cell2 : CellIndex(5, 5)
[INFO] [stderr] cells_swap( CellIndex(3, 5), CellIndex(5, 5) )
[INFO] [stderr] cell1 : CellIndex(5, 0)
[INFO] [stderr] cell2 : CellIndex(5, 0)
[INFO] [stderr] cell2 : CellIndex(5, 0)
[INFO] [stderr] cell2 : CellIndex(4, 1)
[INFO] [stderr] cells_swap( CellIndex(5, 0), CellIndex(4, 1) )
[INFO] [stderr] cell1 : CellIndex(5, 1)
[INFO] [stderr] cell1 : CellIndex(5, 0)
[INFO] [stderr] cell2 : CellIndex(4, 1)
[INFO] [stderr] cells_swap( CellIndex(5, 0), CellIndex(4, 1) )
[INFO] [stderr] cell1 : CellIndex(6, 2)
[INFO] [stderr] cell2 : CellIndex(6, 0)
[INFO] [stderr] cells_swap( CellIndex(6, 2), CellIndex(6, 0) )
[INFO] [stderr] cell1 : CellIndex(2, 5)
[INFO] [stderr] cell2 : CellIndex(0, 4)
[INFO] [stderr] cells_swap( CellIndex(2, 5), CellIndex(0, 4) )
[INFO] [stderr]    Doc-tests optimization_tools
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "95ed29432b46048072589116841454ffb3e581a7104063c8e7a61e0e368937c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ed29432b46048072589116841454ffb3e581a7104063c8e7a61e0e368937c4", kill_on_drop: false }`
[INFO] [stdout] 95ed29432b46048072589116841454ffb3e581a7104063c8e7a61e0e368937c4
