[INFO] fetching crate shiftnanigans 0.3.2...
[INFO] checking shiftnanigans-0.3.2 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate shiftnanigans 0.3.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate shiftnanigans 0.3.2 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shiftnanigans 0.3.2
[INFO] finished tweaking crates.io crate shiftnanigans 0.3.2
[INFO] tweaked toml for crates.io crate shiftnanigans 0.3.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate shiftnanigans 0.3.2 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" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50a64456a77b1a7fac14d9725b9c83527d69115fa17f96837e5deeaa4e08d276
[INFO] running `Command { std: "docker" "start" "-a" "50a64456a77b1a7fac14d9725b9c83527d69115fa17f96837e5deeaa4e08d276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50a64456a77b1a7fac14d9725b9c83527d69115fa17f96837e5deeaa4e08d276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50a64456a77b1a7fac14d9725b9c83527d69115fa17f96837e5deeaa4e08d276", kill_on_drop: false }`
[INFO] [stdout] 50a64456a77b1a7fac14d9725b9c83527d69115fa17f96837e5deeaa4e08d276
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45f9216778bc54f523666ce2cc3189446639250429726745964c70d7ba62fb67
[INFO] running `Command { std: "docker" "start" "-a" "45f9216778bc54f523666ce2cc3189446639250429726745964c70d7ba62fb67", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
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[INFO] [stderr]     Checking shiftnanigans v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `cell::RefCell`, `iter::Peekable`
[INFO] [stdout]  --> src/incrementer/mod.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{iter::Peekable, cell::RefCell};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `VecDeque`, `cell::RefCell`
[INFO] [stdout]  --> src/incrementer/shifting_cell_group_dependency_incrementer.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{collections::{VecDeque, BTreeSet}, rc::Rc, cell::RefCell};
[INFO] [stdout]   |                         ^^^^^^^^                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::VecDeque`
[INFO] [stdout]  --> src/shifter/segment_permutation_shifter.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{rc::Rc, collections::VecDeque};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `get_n_choose_k`
[INFO] [stdout]  --> src/shifter/segment_permutation_shifter.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{IndexedElement, get_n_choose_k};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/shifter/shifting_square_breadth_first_search_shifter.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `index_shifter::IndexShifter`
[INFO] [stdout]  --> src/shifter/hyper_graph_cliche_shifter.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::{Shifter, index_shifter::IndexShifter};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap`, `HashMap`
[INFO] [stdout]  --> src/pixel_board/pixel_board_randomizer.rs:1:58
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{rc::Rc, cell::RefCell, collections::{BTreeSet, BTreeMap, HashMap}};
[INFO] [stdout]   |                                                          ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `combined_shifter::CombinedShifter`, `self`
[INFO] [stdout]  --> src/pixel_board/pixel_board_randomizer.rs:4:144
[INFO] [stdout]   |
[INFO] [stdout] 4 | ...::{self, CellGroupDependency, ShiftingCellGroupDependencyIncrementer}, shifter_incrementer::ShifterIncrementer, limited_incrementer::LimitedIncrementer}, shifter::{Shifter, segment_permutation_shifter::{Segment, SegmentPermutationShifter}, index_shifter::IndexShifter, combined_shifter::CombinedShifter, s...
[INFO] [stdout]   |       ^^^^                                                                                                                                                                                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:957:75
[INFO] [stdout]     |
[INFO] [stdout] 957 | ...                   let rightmost_cell_group_location_x = (rightmost_x - cell_group_width);
[INFO] [stdout]     |                                                             ^                              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 957 -                                     let rightmost_cell_group_location_x = (rightmost_x - cell_group_width);
[INFO] [stdout] 957 +                                     let rightmost_cell_group_location_x = rightmost_x - cell_group_width;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:958:76
[INFO] [stdout]     |
[INFO] [stdout] 958 | ...                   let bottommost_cell_group_location_y = (bottommost_y - cell_group_height);
[INFO] [stdout]     |                                                              ^                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 958 -                                     let bottommost_cell_group_location_y = (bottommost_y - cell_group_height);
[INFO] [stdout] 958 +                                     let bottommost_cell_group_location_y = bottommost_y - cell_group_height;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1675:83
[INFO] [stdout]      |
[INFO] [stdout] 1675 | ...                   let original_pixel_board_index_x: usize = (cell.0 as usize + pixel_board_coordinate.0);
[INFO] [stdout]      |                                                                 ^                                          ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1675 -                                         let original_pixel_board_index_x: usize = (cell.0 as usize + pixel_board_coordinate.0);
[INFO] [stdout] 1675 +                                         let original_pixel_board_index_x: usize = cell.0 as usize + pixel_board_coordinate.0;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1676:83
[INFO] [stdout]      |
[INFO] [stdout] 1676 | ...                   let original_pixel_board_index_y: usize = (cell.1 as usize + pixel_board_coordinate.1);
[INFO] [stdout]      |                                                                 ^                                          ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1676 -                                         let original_pixel_board_index_y: usize = (cell.1 as usize + pixel_board_coordinate.1);
[INFO] [stdout] 1676 +                                         let original_pixel_board_index_y: usize = cell.1 as usize + pixel_board_coordinate.1;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/shifter/segment_permutation_shifter.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 218 |         return self.is_starting_at_beginning;
[INFO] [stdout]     |         ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 219 |
[INFO] [stdout] 220 |         let mut is_looped = false;  // TODO remove is_looped logic completely or replace with loop iteration count
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitvec::prelude`
[INFO] [stdout]  --> src/shifter/hyper_graph_cliche_shifter.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bitvec::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/shifter/segment_permutation_shifter.rs:602:13
[INFO] [stdout]     |
[INFO] [stdout] 602 |         let mut is_still_trying_earlier_shift_indexes = true;
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_stateful_hyper_graph_node_index`
[INFO] [stdout]    --> src/shifter/hyper_graph_cliche_shifter.rs:182:33
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     if let Some(current_stateful_hyper_graph_node_index) = self.current_stateful_hyper_graph_node_index_per_hyper_graph_n...
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_stateful_hyper_graph_node_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:281:21
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 let mut top_adjacent_pixel_board_coordinates: BTreeSet<(usize, usize)> = BTreeSet::new();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:345:21
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 let mut top_adjacent_pixel_board_coordinates: BTreeSet<(usize, usize)> = BTreeSet::new();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let mut right_adjacent_pixel_board_coordinates: BTreeSet<(usize, usize)> = BTreeSet::new();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cell_group_index` and `location` are never read
[INFO] [stdout]   --> src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct LocatedCellGroup {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 40 |     cell_group_index: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     location: Rc<(u8, u8)>
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_n_choose_k` is never used
[INFO] [stdout]   --> src/lib.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn get_n_choose_k(n: u64, k: u64) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `jumpy`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `examples/jumpy.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shiftnanigans` (example "jumpy") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]   --> benches/benchmarks/pixel_board_randomizer/small_plus_sign.rs:94:27
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     match (borrowed_pixel) {
[INFO] [stdout]    |                           ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 94 -                     match (borrowed_pixel) {
[INFO] [stdout] 94 +                     match borrowed_pixel {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell`, `iter::Peekable`
[INFO] [stdout]  --> src/incrementer/mod.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{iter::Peekable, cell::RefCell};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `VecDeque`, `cell::RefCell`
[INFO] [stdout]  --> src/incrementer/shifting_cell_group_dependency_incrementer.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{collections::{VecDeque, BTreeSet}, rc::Rc, cell::RefCell};
[INFO] [stdout]   |                         ^^^^^^^^                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `cell::RefCell`
[INFO] [stdout]    --> src/incrementer/shifting_cell_group_dependency_incrementer.rs:323:22
[INFO] [stdout]     |
[INFO] [stdout] 323 |     use std::{time::{Duration, Instant}, cell::RefCell, collections::BTreeSet};
[INFO] [stdout]     |                      ^^^^^^^^            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bits`
[INFO] [stdout]    --> src/incrementer/shifting_cell_group_dependency_incrementer.rs:328:18
[INFO] [stdout]     |
[INFO] [stdout] 328 |     use bitvec::{bits, vec::BitVec};
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]    --> src/incrementer/shifting_cell_group_dependency_incrementer.rs:330:9
[INFO] [stdout]     |
[INFO] [stdout] 330 |     use uuid::Uuid;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `cell::RefCell`, `collections::BTreeSet`
[INFO] [stdout]    --> src/incrementer/round_robin_incrementer.rs:101:22
[INFO] [stdout]     |
[INFO] [stdout] 101 |     use std::{time::{Duration, Instant}, cell::RefCell, collections::BTreeSet, rc::Rc};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^   ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bits`, `vec::BitVec`
[INFO] [stdout]    --> src/incrementer/round_robin_incrementer.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |     use bitvec::{bits, vec::BitVec};
[INFO] [stdout]     |                  ^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]    --> src/incrementer/round_robin_incrementer.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     use uuid::Uuid;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `collections::BTreeSet`
[INFO] [stdout]    --> src/incrementer/shifter_incrementer.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     use std::{time::{Duration, Instant}, cell::RefCell, collections::BTreeSet, rc::Rc};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bits`, `vec::BitVec`
[INFO] [stdout]    --> src/incrementer/shifter_incrementer.rs:121:18
[INFO] [stdout]     |
[INFO] [stdout] 121 |     use bitvec::{bits, vec::BitVec};
[INFO] [stdout]     |                  ^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]    --> src/incrementer/shifter_incrementer.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |     use uuid::Uuid;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `cell::RefCell`, `collections::BTreeSet`
[INFO] [stdout]    --> src/incrementer/binary_density_incrementer.rs:107:22
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use std::{time::{Duration, Instant}, cell::RefCell, collections::BTreeSet};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^   ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bits`, `vec::BitVec`
[INFO] [stdout]    --> src/incrementer/binary_density_incrementer.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |     use bitvec::{bits, vec::BitVec};
[INFO] [stdout]     |                  ^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]    --> src/incrementer/binary_density_incrementer.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     use uuid::Uuid;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `cell::RefCell`, `collections::BTreeSet`
[INFO] [stdout]   --> src/incrementer/binary_value_incrementer.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |     use std::{time::{Duration, Instant}, cell::RefCell, collections::BTreeSet};
[INFO] [stdout]    |                      ^^^^^^^^  ^^^^^^^   ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bits`, `vec::BitVec`
[INFO] [stdout]   --> src/incrementer/binary_value_incrementer.rs:76:18
[INFO] [stdout]    |
[INFO] [stdout] 76 |     use bitvec::{bits, vec::BitVec};
[INFO] [stdout]    |                  ^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `uuid::Uuid`
[INFO] [stdout]   --> src/incrementer/binary_value_incrementer.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     use uuid::Uuid;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `cell::RefCell`
[INFO] [stdout]    --> src/shifter/index_shifter.rs:201:22
[INFO] [stdout]     |
[INFO] [stdout] 201 |     use std::{time::{Duration, Instant}, cell::RefCell};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::VecDeque`
[INFO] [stdout]  --> src/shifter/segment_permutation_shifter.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{rc::Rc, collections::VecDeque};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `get_n_choose_k`
[INFO] [stdout]  --> src/shifter/segment_permutation_shifter.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{IndexedElement, get_n_choose_k};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `cell::RefCell`
[INFO] [stdout]    --> src/shifter/segment_permutation_shifter.rs:718:22
[INFO] [stdout]     |
[INFO] [stdout] 718 |     use std::{time::{Duration, Instant}, cell::RefCell, collections::BTreeMap};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tile`
[INFO] [stdout]   --> benches/benchmarks/pixel_board_randomizer/small_plus_sign.rs:24:36
[INFO] [stdout]    |
[INFO] [stdout] 24 |             ExamplePixel::Tile(ref tile) => {
[INFO] [stdout]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_tile`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other_pixel`
[INFO] [stdout]   --> benches/benchmarks/pixel_board_randomizer/small_plus_sign.rs:22:60
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn get_invalid_location_offsets_for_other_pixel(&self, other_pixel: &ExamplePixel) -> Vec<(i16, i16)> {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_pixel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]    --> src/shifter/combined_shifter.rs:137:22
[INFO] [stdout]     |
[INFO] [stdout] 137 |     use std::{time::{Duration, Instant}, cell::RefCell};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> src/shifter/shifting_square_breadth_first_search_shifter.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `cell::RefCell`
[INFO] [stdout]    --> src/shifter/shifting_square_breadth_first_search_shifter.rs:338:22
[INFO] [stdout]     |
[INFO] [stdout] 338 |     use std::{time::{Duration, Instant}, cell::RefCell};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `cell::RefCell`
[INFO] [stdout]    --> src/shifter/scaling_square_breadth_first_search_shifter.rs:189:22
[INFO] [stdout]     |
[INFO] [stdout] 189 |     use std::{time::{Duration, Instant}, cell::RefCell};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `index_shifter::IndexShifter`
[INFO] [stdout]  --> src/shifter/hyper_graph_cliche_shifter.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use super::{Shifter, index_shifter::IndexShifter};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `collections::BTreeMap`
[INFO] [stdout]    --> src/shifter/hyper_graph_cliche_shifter.rs:291:22
[INFO] [stdout]     |
[INFO] [stdout] 291 |     use std::{time::{Duration, Instant}, cell::RefCell, collections::BTreeMap};
[INFO] [stdout]     |                      ^^^^^^^^  ^^^^^^^                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/pixel_board/pixel_board_randomizer.rs:1:68
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{rc::Rc, cell::RefCell, collections::{BTreeSet, BTreeMap, HashMap}};
[INFO] [stdout]   |                                                                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `combined_shifter::CombinedShifter`, `self`
[INFO] [stdout]  --> src/pixel_board/pixel_board_randomizer.rs:4:144
[INFO] [stdout]   |
[INFO] [stdout] 4 | ...::{self, CellGroupDependency, ShiftingCellGroupDependencyIncrementer}, shifter_incrementer::ShifterIncrementer, limited_incrementer::LimitedIncrementer}, shifter::{Shifter, segment_permutation_shifter::{Segment, SegmentPermutationShifter}, index_shifter::IndexShifter, combined_shifter::CombinedShifter, s...
[INFO] [stdout]   |       ^^^^                                                                                                                                                                                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:957:75
[INFO] [stdout]     |
[INFO] [stdout] 957 | ...                   let rightmost_cell_group_location_x = (rightmost_x - cell_group_width);
[INFO] [stdout]     |                                                             ^                              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 957 -                                     let rightmost_cell_group_location_x = (rightmost_x - cell_group_width);
[INFO] [stdout] 957 +                                     let rightmost_cell_group_location_x = rightmost_x - cell_group_width;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:958:76
[INFO] [stdout]     |
[INFO] [stdout] 958 | ...                   let bottommost_cell_group_location_y = (bottommost_y - cell_group_height);
[INFO] [stdout]     |                                                              ^                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 958 -                                     let bottommost_cell_group_location_y = (bottommost_y - cell_group_height);
[INFO] [stdout] 958 +                                     let bottommost_cell_group_location_y = bottommost_y - cell_group_height;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1675:83
[INFO] [stdout]      |
[INFO] [stdout] 1675 | ...                   let original_pixel_board_index_x: usize = (cell.0 as usize + pixel_board_coordinate.0);
[INFO] [stdout]      |                                                                 ^                                          ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1675 -                                         let original_pixel_board_index_x: usize = (cell.0 as usize + pixel_board_coordinate.0);
[INFO] [stdout] 1675 +                                         let original_pixel_board_index_x: usize = cell.0 as usize + pixel_board_coordinate.0;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1676:83
[INFO] [stdout]      |
[INFO] [stdout] 1676 | ...                   let original_pixel_board_index_y: usize = (cell.1 as usize + pixel_board_coordinate.1);
[INFO] [stdout]      |                                                                 ^                                          ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1676 -                                         let original_pixel_board_index_y: usize = (cell.1 as usize + pixel_board_coordinate.1);
[INFO] [stdout] 1676 +                                         let original_pixel_board_index_y: usize = cell.1 as usize + pixel_board_coordinate.1;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1701:22
[INFO] [stdout]      |
[INFO] [stdout] 1701 |     use std::{time::{Duration, Instant}, cell::RefCell};
[INFO] [stdout]      |                      ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3370:43
[INFO] [stdout]      |
[INFO] [stdout] 3370 | ...                   match (borrowed_pixel) {
[INFO] [stdout]      |                             ^              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3370 -                                     match (borrowed_pixel) {
[INFO] [stdout] 3370 +                                     match borrowed_pixel {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3383:43
[INFO] [stdout]      |
[INFO] [stdout] 3383 | ...                   match (borrowed_pixel) {
[INFO] [stdout]      |                             ^              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3383 -                                     match (borrowed_pixel) {
[INFO] [stdout] 3383 +                                     match borrowed_pixel {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3441:43
[INFO] [stdout]      |
[INFO] [stdout] 3441 | ...                   match (borrowed_pixel) {
[INFO] [stdout]      |                             ^              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3441 -                                     match (borrowed_pixel) {
[INFO] [stdout] 3441 +                                     match borrowed_pixel {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3454:43
[INFO] [stdout]      |
[INFO] [stdout] 3454 | ...                   match (borrowed_pixel) {
[INFO] [stdout]      |                             ^              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3454 -                                     match (borrowed_pixel) {
[INFO] [stdout] 3454 +                                     match borrowed_pixel {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3534:35
[INFO] [stdout]      |
[INFO] [stdout] 3534 | ...                   match (borrowed_pixel) {
[INFO] [stdout]      |                             ^              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3534 -                             match (borrowed_pixel) {
[INFO] [stdout] 3534 +                             match borrowed_pixel {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3621:31
[INFO] [stdout]      |
[INFO] [stdout] 3621 |                         match (borrowed_pixel) {
[INFO] [stdout]      |                               ^              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3621 -                         match (borrowed_pixel) {
[INFO] [stdout] 3621 +                         match borrowed_pixel {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3732:35
[INFO] [stdout]      |
[INFO] [stdout] 3732 | ...                   match (borrowed_pixel) {
[INFO] [stdout]      |                             ^              ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3732 -                             match (borrowed_pixel) {
[INFO] [stdout] 3732 +                             match borrowed_pixel {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `element_id` is never read
[INFO] [stdout]   --> benches/benchmarks/pixel_board_randomizer/small_plus_sign.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Element {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 12 |     element_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Element` is never constructed
[INFO] [stdout]   --> benches/benchmarks/pixel_board_randomizer/small_plus_sign.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum ExamplePixel {
[INFO] [stdout]    |      ------------ variant in this enum
[INFO] [stdout] 17 |     Tile(Tile),
[INFO] [stdout] 18 |     Element(Element)
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/shifter/segment_permutation_shifter.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 218 |         return self.is_starting_at_beginning;
[INFO] [stdout]     |         ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 219 |
[INFO] [stdout] 220 |         let mut is_looped = false;  // TODO remove is_looped logic completely or replace with loop iteration count
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/shifter/segment_permutation_shifter.rs:602:13
[INFO] [stdout]     |
[INFO] [stdout] 602 |         let mut is_still_trying_earlier_shift_indexes = true;
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shifter_incrementer_1`
[INFO] [stdout]     --> src/shifter/segment_permutation_shifter.rs:1621:17
[INFO] [stdout]      |
[INFO] [stdout] 1621 |         let mut shifter_incrementer_1 = ShifterIncrementer::new(Box::new(segment_permutation_shifter_1), vec![0]);
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shifter_incrementer_1`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/shifter/segment_permutation_shifter.rs:1621:13
[INFO] [stdout]      |
[INFO] [stdout] 1621 |         let mut shifter_incrementer_1 = ShifterIncrementer::new(Box::new(segment_permutation_shifter_1), vec![0]);
[INFO] [stdout]      |             ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_stateful_hyper_graph_node_index`
[INFO] [stdout]    --> src/shifter/hyper_graph_cliche_shifter.rs:182:33
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     if let Some(current_stateful_hyper_graph_node_index) = self.current_stateful_hyper_graph_node_index_per_hyper_graph_n...
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_stateful_hyper_graph_node_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:281:21
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 let mut top_adjacent_pixel_board_coordinates: BTreeSet<(usize, usize)> = BTreeSet::new();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:345:21
[INFO] [stdout]     |
[INFO] [stdout] 345 |                 let mut top_adjacent_pixel_board_coordinates: BTreeSet<(usize, usize)> = BTreeSet::new();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pixel_board/pixel_board_randomizer.rs:348:21
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 let mut right_adjacent_pixel_board_coordinates: BTreeSet<(usize, usize)> = BTreeSet::new();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tile`
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1724:40
[INFO] [stdout]      |
[INFO] [stdout] 1724 |                 ExamplePixel::Tile(ref tile) => {
[INFO] [stdout]      |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_tile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other_pixel`
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1722:64
[INFO] [stdout]      |
[INFO] [stdout] 1722 |         fn get_invalid_location_offsets_for_other_pixel(&self, other_pixel: &ExamplePixel) -> Vec<(i16, i16)> {
[INFO] [stdout]      |                                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_pixel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:2469:21
[INFO] [stdout]      |
[INFO] [stdout] 2469 |                 let mut pixel_board_randomizer = PixelBoardRandomizer::new(pixel_board);
[INFO] [stdout]      |                     ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:2577:21
[INFO] [stdout]      |
[INFO] [stdout] 2577 |                 let mut pixel_board_randomizer = PixelBoardRandomizer::new(pixel_board);
[INFO] [stdout]      |                     ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `top_total` is assigned to, but never used
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3356:21
[INFO] [stdout]      |
[INFO] [stdout] 3356 |             let mut top_total = 0;
[INFO] [stdout]      |                     ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider using `_top_total` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bottom_total` is assigned to, but never used
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3357:21
[INFO] [stdout]      |
[INFO] [stdout] 3357 |             let mut bottom_total = 0;
[INFO] [stdout]      |                     ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider using `_bottom_total` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `left_total` is assigned to, but never used
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3427:21
[INFO] [stdout]      |
[INFO] [stdout] 3427 |             let mut left_total = 0;
[INFO] [stdout]      |                     ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider using `_left_total` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `right_total` is assigned to, but never used
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:3428:21
[INFO] [stdout]      |
[INFO] [stdout] 3428 |             let mut right_total = 0;
[INFO] [stdout]      |                     ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider using `_right_total` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cell_group_index` and `location` are never read
[INFO] [stdout]   --> src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct LocatedCellGroup {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 40 |     cell_group_index: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     location: Rc<(u8, u8)>
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_n_choose_k` is never used
[INFO] [stdout]   --> src/lib.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn get_n_choose_k(n: u64, k: u64) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init` is never used
[INFO] [stdout]    --> src/incrementer/round_robin_incrementer.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn init() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init` is never used
[INFO] [stdout]    --> src/incrementer/binary_density_incrementer.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn init() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init` is never used
[INFO] [stdout]   --> src/incrementer/binary_value_incrementer.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn init() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decrement_incrementer` is never used
[INFO] [stdout]     --> src/shifter/segment_permutation_shifter.rs:1630:8
[INFO] [stdout]      |
[INFO] [stdout] 1630 |     fn decrement_incrementer() {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `element_id` is never read
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1712:9
[INFO] [stdout]      |
[INFO] [stdout] 1711 |     struct Element {
[INFO] [stdout]      |            ------- field in this struct
[INFO] [stdout] 1712 |         element_id: String,
[INFO] [stdout]      |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Element` is never constructed
[INFO] [stdout]     --> src/pixel_board/pixel_board_randomizer.rs:1718:9
[INFO] [stdout]      |
[INFO] [stdout] 1716 |     enum ExamplePixel {
[INFO] [stdout]      |          ------------ variant in this enum
[INFO] [stdout] 1717 |         Tile(Tile),
[INFO] [stdout] 1718 |         Element(Element)
[INFO] [stdout]      |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 65 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "45f9216778bc54f523666ce2cc3189446639250429726745964c70d7ba62fb67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f9216778bc54f523666ce2cc3189446639250429726745964c70d7ba62fb67", kill_on_drop: false }`
[INFO] [stdout] 45f9216778bc54f523666ce2cc3189446639250429726745964c70d7ba62fb67
