[INFO] cloning repository https://github.com/samiskin/advent-of-code-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samiskin/advent-of-code-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamiskin%2Fadvent-of-code-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamiskin%2Fadvent-of-code-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cafba7475c1d047083870140b46491df395054f1
[INFO] testing samiskin/advent-of-code-2021 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamiskin%2Fadvent-of-code-2021" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samiskin/advent-of-code-2021 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samiskin/advent-of-code-2021
[INFO] finished tweaking git repo https://github.com/samiskin/advent-of-code-2021
[INFO] tweaked toml for git repo https://github.com/samiskin/advent-of-code-2021 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/samiskin/advent-of-code-2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06e8d84d3e2ee1b4e1d45a830a3f2e5c536ef356b6e8672b573da2419525cfcf
[INFO] running `Command { std: "docker" "start" "-a" "06e8d84d3e2ee1b4e1d45a830a3f2e5c536ef356b6e8672b573da2419525cfcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06e8d84d3e2ee1b4e1d45a830a3f2e5c536ef356b6e8672b573da2419525cfcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e8d84d3e2ee1b4e1d45a830a3f2e5c536ef356b6e8672b573da2419525cfcf", kill_on_drop: false }`
[INFO] [stdout] 06e8d84d3e2ee1b4e1d45a830a3f2e5c536ef356b6e8672b573da2419525cfcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3bdacdbd66eb339e67ae6494f8a446bc8ee2e91d3d7d7c56903ed04318bd61e
[INFO] running `Command { std: "docker" "start" "-a" "e3bdacdbd66eb339e67ae6494f8a446bc8ee2e91d3d7d7c56903ed04318bd61e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `print_vec_multiline`
[INFO] [stdout]   --> src/utils.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn print_vec_multiline<T>(v: &Vec<T>) where T: std::fmt::Debug {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_to_str_multiline`
[INFO] [stdout]   --> src/utils.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn vec_to_str_multiline<T>(v: &Vec<T>) -> String where T: std::fmt::Debug {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bit_vec_to_num`
[INFO] [stdout]   --> src/utils.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn bit_vec_to_num<'a>(bitvec: &'a [u8]) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_arr`
[INFO] [stdout]   --> src/utils.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn to_arr(&self) -> [i32; 3] {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sub`
[INFO] [stdout]   --> src/utils.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn sub(&self, rhs: &Point3) -> Point3 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> src/utils.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn add(&self, rhs: &Point3) -> Point3 {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `manhattan`
[INFO] [stdout]    --> src/utils.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn manhattan(&self) -> i32 {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `transform_point`
[INFO] [stdout]    --> src/utils.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn transform_point(p: Point3, mat: [[i32; 3]; 3]) -> Point3 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Matrix`
[INFO] [stdout]    --> src/utils.rs:130:1
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub type Matrix = [[i32; 3]; 3];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mat_transpose`
[INFO] [stdout]    --> src/utils.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub fn mat_transpose(mat: Matrix) -> Matrix {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_dot`
[INFO] [stdout]    --> src/utils.rs:139:8
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub fn vec_dot(a: [i32; 3], b: [i32; 3]) -> i32 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mat_mul`
[INFO] [stdout]    --> src/utils.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn mat_mul(a: Matrix, b_orig: Matrix) -> Matrix {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mat_pow`
[INFO] [stdout]    --> src/utils.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn mat_pow(a: Matrix, n: usize) -> Matrix {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `ID_MAT`
[INFO] [stdout]    --> src/utils.rs:167:1
[INFO] [stdout]     |
[INFO] [stdout] 167 | pub static ID_MAT: Matrix = [[1, 0, 0], [0, 1, 0], [0, 0, 1]];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `ROT_90_X`
[INFO] [stdout]    --> src/utils.rs:168:1
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub static ROT_90_X: Matrix = [[1, 0, 0], [0, 0, -1], [0, 1, 0]];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `ROT_90_Y`
[INFO] [stdout]    --> src/utils.rs:169:1
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub static ROT_90_Y: Matrix = [[0, 0, 1], [0, 1, 0], [-1, 0, 0]];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `ROT_90_Z`
[INFO] [stdout]    --> src/utils.rs:170:1
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub static ROT_90_Z: Matrix = [[0, -1, 0], [1, 0, 0], [0, 0, 1]];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_shortest_path_grid`
[INFO] [stdout]    --> src/utils.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 | pub fn get_shortest_path_grid<T: Add<Output = T>>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_points`
[INFO] [stdout]    --> src/utils.rs:292:12
[INFO] [stdout]     |
[INFO] [stdout] 292 |     pub fn from_points(points: Vec<((i32, i32), T)>, default: T) -> Grid<T> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_all`
[INFO] [stdout]    --> src/utils.rs:313:12
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn set_all(&mut self, val: T) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotated`
[INFO] [stdout]    --> src/utils.rs:322:12
[INFO] [stdout]     |
[INFO] [stdout] 322 |     pub fn rotated(&self) -> Grid<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `digits`
[INFO] [stdout]    --> src/utils.rs:507:5
[INFO] [stdout]     |
[INFO] [stdout] 507 |     digits: &'a Vec<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `BinaryStreamIterator` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/utils.rs:505:10
[INFO] [stdout]     |
[INFO] [stdout] 505 | #[derive(Clone, Copy)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/utils.rs:512:12
[INFO] [stdout]     |
[INFO] [stdout] 512 |     pub fn new(digits: &'a Vec<u8>) -> BinaryStreamIterator<'a> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take`
[INFO] [stdout]    --> src/utils.rs:516:12
[INFO] [stdout]     |
[INFO] [stdout] 516 |     pub fn take(&mut self, num_digits: usize) -> &[u8] {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/utils.rs:522:12
[INFO] [stdout]     |
[INFO] [stdout] 522 |     pub fn next(&mut self) -> u8 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "e3bdacdbd66eb339e67ae6494f8a446bc8ee2e91d3d7d7c56903ed04318bd61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3bdacdbd66eb339e67ae6494f8a446bc8ee2e91d3d7d7c56903ed04318bd61e", kill_on_drop: false }`
[INFO] [stdout] e3bdacdbd66eb339e67ae6494f8a446bc8ee2e91d3d7d7c56903ed04318bd61e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d322b8bdb762aca6734b37f82f6c3a98517f370cd2e9cb391af9514937a6b52
[INFO] running `Command { std: "docker" "start" "-a" "6d322b8bdb762aca6734b37f82f6c3a98517f370cd2e9cb391af9514937a6b52", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `print_vec_multiline`
[INFO] [stdout]   --> src/utils.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn print_vec_multiline<T>(v: &Vec<T>) where T: std::fmt::Debug {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_to_str_multiline`
[INFO] [stdout]   --> src/utils.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn vec_to_str_multiline<T>(v: &Vec<T>) -> String where T: std::fmt::Debug {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bit_vec_to_num`
[INFO] [stdout]   --> src/utils.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn bit_vec_to_num<'a>(bitvec: &'a [u8]) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_arr`
[INFO] [stdout]   --> src/utils.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn to_arr(&self) -> [i32; 3] {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sub`
[INFO] [stdout]   --> src/utils.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn sub(&self, rhs: &Point3) -> Point3 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> src/utils.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub fn add(&self, rhs: &Point3) -> Point3 {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `manhattan`
[INFO] [stdout]    --> src/utils.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn manhattan(&self) -> i32 {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `transform_point`
[INFO] [stdout]    --> src/utils.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn transform_point(p: Point3, mat: [[i32; 3]; 3]) -> Point3 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Matrix`
[INFO] [stdout]    --> src/utils.rs:130:1
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub type Matrix = [[i32; 3]; 3];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mat_transpose`
[INFO] [stdout]    --> src/utils.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub fn mat_transpose(mat: Matrix) -> Matrix {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_dot`
[INFO] [stdout]    --> src/utils.rs:139:8
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub fn vec_dot(a: [i32; 3], b: [i32; 3]) -> i32 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mat_mul`
[INFO] [stdout]    --> src/utils.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn mat_mul(a: Matrix, b_orig: Matrix) -> Matrix {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mat_pow`
[INFO] [stdout]    --> src/utils.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn mat_pow(a: Matrix, n: usize) -> Matrix {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `ID_MAT`
[INFO] [stdout]    --> src/utils.rs:167:1
[INFO] [stdout]     |
[INFO] [stdout] 167 | pub static ID_MAT: Matrix = [[1, 0, 0], [0, 1, 0], [0, 0, 1]];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `ROT_90_X`
[INFO] [stdout]    --> src/utils.rs:168:1
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub static ROT_90_X: Matrix = [[1, 0, 0], [0, 0, -1], [0, 1, 0]];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `ROT_90_Y`
[INFO] [stdout]    --> src/utils.rs:169:1
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub static ROT_90_Y: Matrix = [[0, 0, 1], [0, 1, 0], [-1, 0, 0]];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `ROT_90_Z`
[INFO] [stdout]    --> src/utils.rs:170:1
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub static ROT_90_Z: Matrix = [[0, -1, 0], [1, 0, 0], [0, 0, 1]];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_shortest_path_grid`
[INFO] [stdout]    --> src/utils.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 | pub fn get_shortest_path_grid<T: Add<Output = T>>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_points`
[INFO] [stdout]    --> src/utils.rs:292:12
[INFO] [stdout]     |
[INFO] [stdout] 292 |     pub fn from_points(points: Vec<((i32, i32), T)>, default: T) -> Grid<T> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_all`
[INFO] [stdout]    --> src/utils.rs:313:12
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn set_all(&mut self, val: T) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotated`
[INFO] [stdout]    --> src/utils.rs:322:12
[INFO] [stdout]     |
[INFO] [stdout] 322 |     pub fn rotated(&self) -> Grid<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `digits`
[INFO] [stdout]    --> src/utils.rs:507:5
[INFO] [stdout]     |
[INFO] [stdout] 507 |     digits: &'a Vec<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `BinaryStreamIterator` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/utils.rs:505:10
[INFO] [stdout]     |
[INFO] [stdout] 505 | #[derive(Clone, Copy)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/utils.rs:512:12
[INFO] [stdout]     |
[INFO] [stdout] 512 |     pub fn new(digits: &'a Vec<u8>) -> BinaryStreamIterator<'a> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take`
[INFO] [stdout]    --> src/utils.rs:516:12
[INFO] [stdout]     |
[INFO] [stdout] 516 |     pub fn take(&mut self, num_digits: usize) -> &[u8] {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/utils.rs:522:12
[INFO] [stdout]     |
[INFO] [stdout] 522 |     pub fn next(&mut self) -> u8 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/advent_of_code_2021-f63b8a66fc2d5c1b)
[INFO] running `Command { std: "docker" "inspect" "6d322b8bdb762aca6734b37f82f6c3a98517f370cd2e9cb391af9514937a6b52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d322b8bdb762aca6734b37f82f6c3a98517f370cd2e9cb391af9514937a6b52", kill_on_drop: false }`
[INFO] [stdout] 6d322b8bdb762aca6734b37f82f6c3a98517f370cd2e9cb391af9514937a6b52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b5b1f68cc5e1ee7adff8dcc7e18e15e3f10b52b75c68b316be28ff9a07cd790
[INFO] running `Command { std: "docker" "start" "-a" "2b5b1f68cc5e1ee7adff8dcc7e18e15e3f10b52b75c68b316be28ff9a07cd790", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `print_vec_multiline`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/utils.rs:62:8
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 62 | pub fn print_vec_multiline<T>(v: &Vec<T>) where T: std::fmt::Debug {
[INFO] [stdout] 
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_to_str_multiline`
[INFO] [stderr]   --> src/utils.rs:68:8
[INFO] [stderr]    |
[INFO] [stderr] 68 | pub fn vec_to_str_multiline<T>(v: &Vec<T>) -> String where T: std::fmt::Debug {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bit_vec_to_num`
[INFO] [stderr]   --> src/utils.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn bit_vec_to_num<'a>(bitvec: &'a [u8]) -> u64 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_arr`
[INFO] [stderr]   --> src/utils.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn to_arr(&self) -> [i32; 3] {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sub`
[INFO] [stderr]   --> src/utils.rs:96:12
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn sub(&self, rhs: &Point3) -> Point3 {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add`
[INFO] [stderr]    --> src/utils.rs:104:12
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn add(&self, rhs: &Point3) -> Point3 {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `manhattan`
[INFO] [stderr]    --> src/utils.rs:112:12
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn manhattan(&self) -> i32 {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `transform_point`
[INFO] [stderr]    --> src/utils.rs:117:8
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub fn transform_point(p: Point3, mat: [[i32; 3]; 3]) -> Point3 {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Matrix`
[INFO] [stderr]    --> src/utils.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub type Matrix = [[i32; 3]; 3];
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat_transpose`
[INFO] [stderr]    --> src/utils.rs:132:8
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub fn mat_transpose(mat: Matrix) -> Matrix {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_dot`
[INFO] [stderr]    --> src/utils.rs:139:8
[INFO] [stderr]     |
[INFO] [stderr] 139 | pub fn vec_dot(a: [i32; 3], b: [i32; 3]) -> i32 {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat_mul`
[INFO] [stderr]    --> src/utils.rs:142:8
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn mat_mul(a: Matrix, b_orig: Matrix) -> Matrix {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mat_pow`
[INFO] [stderr]    --> src/utils.rs:163:8
[INFO] [stderr]     |
[INFO] [stderr] 163 | pub fn mat_pow(a: Matrix, n: usize) -> Matrix {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `ID_MAT`
[INFO] [stderr]    --> src/utils.rs:167:1
[INFO] [stderr]     |
[INFO] [stderr] 167 | pub static ID_MAT: Matrix = [[1, 0, 0], [0, 1, 0], [0, 0, 1]];
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `ROT_90_X`
[INFO] [stderr]    --> src/utils.rs:168:1
[INFO] [stderr]     |
[INFO] [stderr] 168 | pub static ROT_90_X: Matrix = [[1, 0, 0], [0, 0, -1], [0, 1, 0]];
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `ROT_90_Y`
[INFO] [stderr]    --> src/utils.rs:169:1
[INFO] [stderr]     |
[INFO] [stderr] 169 | pub static ROT_90_Y: Matrix = [[0, 0, 1], [0, 1, 0], [-1, 0, 0]];
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `ROT_90_Z`
[INFO] [stderr]    --> src/utils.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | pub static ROT_90_Z: Matrix = [[0, -1, 0], [1, 0, 0], [0, 0, 1]];
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_shortest_path_grid`
[INFO] [stderr]    --> src/utils.rs:191:8
[INFO] [stderr]     |
[INFO] [stderr] 191 | pub fn get_shortest_path_grid<T: Add<Output = T>>(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_points`
[INFO] [stderr]    --> src/utils.rs:292:12
[INFO] [stderr]     |
[INFO] [stderr] 292 |     pub fn from_points(points: Vec<((i32, i32), T)>, default: T) -> Grid<T> {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_all`
[INFO] [stderr]    --> src/utils.rs:313:12
[INFO] [stderr]     |
[INFO] [stderr] 313 |     pub fn set_all(&mut self, val: T) {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotated`
[INFO] [stderr]    --> src/utils.rs:322:12
[INFO] [stderr]     |
[INFO] [stderr] 322 |     pub fn rotated(&self) -> Grid<T> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `digits`
[INFO] [stderr]    --> src/utils.rs:507:5
[INFO] [stderr]     |
[INFO] [stderr] 507 |     digits: &'a Vec<u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `BinaryStreamIterator` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/utils.rs:505:10
[INFO] [stderr]     |
[INFO] [stderr] 505 | #[derive(Clone, Copy)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/utils.rs:512:12
[INFO] [stderr]     |
[INFO] [stderr] 512 |     pub fn new(digits: &'a Vec<u8>) -> BinaryStreamIterator<'a> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `take`
[INFO] [stderr]    --> src/utils.rs:516:12
[INFO] [stderr]     |
[INFO] [stderr] 516 |     pub fn take(&mut self, num_digits: usize) -> &[u8] {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next`
[INFO] [stderr]    --> src/utils.rs:522:12
[INFO] [stderr]     |
[INFO] [stderr] 522 |     pub fn next(&mut self) -> u8 {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `advent-of-code-2021` (bin "advent-of-code-2021" test) generated 25 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/advent_of_code_2021-f63b8a66fc2d5c1b)
[INFO] running `Command { std: "docker" "inspect" "2b5b1f68cc5e1ee7adff8dcc7e18e15e3f10b52b75c68b316be28ff9a07cd790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b5b1f68cc5e1ee7adff8dcc7e18e15e3f10b52b75c68b316be28ff9a07cd790", kill_on_drop: false }`
[INFO] [stdout] 2b5b1f68cc5e1ee7adff8dcc7e18e15e3f10b52b75c68b316be28ff9a07cd790