[INFO] cloning repository https://github.com/wasuken/contest-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wasuken/contest-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasuken%2Fcontest-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasuken%2Fcontest-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ace384b35c54be639df593021e3b0fba9c1382b
[INFO] testing wasuken/contest-book against 1.75.0 for beta-1.76-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasuken%2Fcontest-book" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wasuken/contest-book on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wasuken/contest-book
[INFO] finished tweaking git repo https://github.com/wasuken/contest-book
[INFO] tweaked toml for git repo https://github.com/wasuken/contest-book written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wasuken/contest-book 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-iter v0.1.40
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded queue v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cdb47683d3212489abbb661d0f2f0e46a9882220d025175274d264bf1392431
[INFO] running `Command { std: "docker" "start" "-a" "0cdb47683d3212489abbb661d0f2f0e46a9882220d025175274d264bf1392431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cdb47683d3212489abbb661d0f2f0e46a9882220d025175274d264bf1392431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cdb47683d3212489abbb661d0f2f0e46a9882220d025175274d264bf1392431", kill_on_drop: false }`
[INFO] [stdout] 0cdb47683d3212489abbb661d0f2f0e46a9882220d025175274d264bf1392431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b21be737f3d63f2f2c17ad40860157832f6829519198f0debe486c72c75ce962
[INFO] running `Command { std: "docker" "start" "-a" "b21be737f3d63f2f2c17ad40860157832f6829519198f0debe486c72c75ce962", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling queue v0.3.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling contest-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `queue::Queue`
[INFO] [stdout]  --> src/act2/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use queue::Queue;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/act2/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/act2/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/act2/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/act2/chap5.rs:206:15
[INFO] [stdout]     |
[INFO] [stdout] 206 |     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stdout]     |                  ^                                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 206 -     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stdout] 206 +     let result = 10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> src/act1/act1.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn act1_6_1(n: i32, a: Vec<u32>) -> u32 {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/act1/act1.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn act1_6_2(l: i32, n: i32, x: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/act2/chap1.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/act2/chap1.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]  --> src/act2/chap3.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut res = None;
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/act2/chap3.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut dp: &mut Vec<Vec<Option<usize>>> = &mut Vec::new();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/act2/chap3.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/act2/chap3.rs:61:6
[INFO] [stdout]    |
[INFO] [stdout] 61 |     for x in 0..100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/act2/chap3.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut dp: &mut Vec<usize> = &mut Vec::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/act2/chap3.rs:75:6
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_m`
[INFO] [stdout]    --> src/act2/chap3.rs:109:6
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let max_m = 1000;
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap3.rs:110:6
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut dp: &mut Vec<i32> = &mut Vec::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/act2/chap3.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mut dp: &mut Vec<usize> = &mut Vec::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/act2/chap3.rs:159:6
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/act2/chap3.rs:185:6
[INFO] [stdout]     |
[INFO] [stdout] 185 |     for i in 0..max_n {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap3.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 184 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::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/act2/chap4.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut bCp = b.clone();
[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/act2/chap4.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut n2 = n;
[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/act2/chap4.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut d = aCp[i] - pos;
[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/act2/chap4.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut l1 = que.pop_back().unwrap();
[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/act2/chap4.rs:56:7
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut l2 = que.pop_back().unwrap();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/act2/chap5.rs:72:6
[INFO] [stdout]    |
[INFO] [stdout] 72 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/act2/chap5.rs:66:23
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn act2_5_2(n: usize, r: usize, g_list: &Vec<Vec<Edge>>) -> usize {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/act2/chap5.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ml`
[INFO] [stdout]    --> src/act2/chap5.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |                       ^^ help: if this is intentional, prefix it with an underscore: `_ml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `md`
[INFO] [stdout]    --> src/act2/chap5.rs:211:34
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_md`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap5.rs:231:6
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut res = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mx` is never read
[INFO] [stdout]   --> src/act2/chap6.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut mx:i32 = 0;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mn` is never read
[INFO] [stdout]   --> src/act2/chap6.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut mn:i32 = 0;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act1_6_1` is never used
[INFO] [stdout]  --> src/act1/act1.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn act1_6_1(n: i32, a: Vec<u32>) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act1_6_2` is never used
[INFO] [stdout]   --> src/act1/act1.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn act1_6_2(l: i32, n: i32, x: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]   --> src/act1/act1.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn dfs(i: i32, sum: i32, n:i32, a: &Vec<i32>, k: i32) -> bool {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]  --> src/act2/chap1.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn dfs(i: i32, sum: i32, n:i32, a: &Vec<i32>, k: i32) -> bool {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_1` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn act2_1_1(n: i32, a: &Vec<i32>, k: i32) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_2_dfs` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn act2_1_2_dfs(x: i32, y: i32, n: i32, m: i32, field: &mut Vec<Vec<String>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_2` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn act2_1_2(n: i32, m: i32, field: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INF` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:52:7
[INFO] [stdout]    |
[INFO] [stdout] 52 | const INF: i32 = 100000000;
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_3_bfs` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn act2_1_3_bfs(sx: i32, sy: i32, gx: i32, gy: i32, maze: &mut Vec<Vec<String>>, d: &mut Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_3` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_1` is never used
[INFO] [stdout]  --> src/act2/chap2.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn act2_2_1(yen_cnt_list: &Vec<i32>, target: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_2` is never used
[INFO] [stdout]   --> src/act2/chap2.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn act2_2_2(n: usize, s: &Vec<usize>, t: &Vec<usize>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_3` is never used
[INFO] [stdout]   --> src/act2/chap2.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn act2_2_3(n: usize, s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_4` is never used
[INFO] [stdout]   --> src/act2/chap2.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn act2_2_4(n: usize, r: usize, x: &Vec<usize>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_5` is never used
[INFO] [stdout]   --> src/act2/chap2.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn act2_2_5(n: usize, l: &Vec<usize>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rec` is never used
[INFO] [stdout]  --> src/act2/chap3.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn rec(i: usize, j: usize, n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, dp: &mut Vec<Vec<Option<usize>>>) -> usize {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_1` is never used
[INFO] [stdout]   --> src/act2/chap3.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn act2_3_1(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_2` is never used
[INFO] [stdout]   --> src/act2/chap3.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn act2_3_2(n: usize, m: usize, s: &str, t: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_3` is never used
[INFO] [stdout]   --> src/act2/chap3.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn act2_3_3(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_4` is never used
[INFO] [stdout]   --> src/act2/chap3.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn act2_3_4(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_5` is never used
[INFO] [stdout]    --> src/act2/chap3.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn act2_3_5(n: usize, a: &Vec<usize>, m: &Vec<usize>, k: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_6` is never used
[INFO] [stdout]    --> src/act2/chap3.rs:138:4
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn act2_3_6(n: usize, a:&Vec<usize>) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_7` is never used
[INFO] [stdout]    --> src/act2/chap3.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn act2_3_7(n: usize, m:usize, bigM:usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_8` is never used
[INFO] [stdout]    --> src/act2/chap3.rs:181:4
[INFO] [stdout]     |
[INFO] [stdout] 181 | fn act2_3_8(n: usize, m: usize, a: &Vec<usize>, bigM: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_4_1` is never used
[INFO] [stdout]  --> src/act2/chap4.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn act2_4_1(n: usize, l: usize, p:usize, a: &Vec<usize>, b: &Vec<usize>) -> Option<usize> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` is never used
[INFO] [stdout]   --> src/act2/chap4.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_4_2` is never used
[INFO] [stdout]   --> src/act2/chap4.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn act2_4_2(n: usize, l: &Vec<usize>) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnionFind` is never constructed
[INFO] [stdout]   --> src/act2/chap4.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct UnionFind {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `find`, `same`, `unite`, and `debug` are never used
[INFO] [stdout]    --> src/act2/chap4.rs:73:8
[INFO] [stdout]     |
[INFO] [stdout] 72  | impl UnionFind {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 73  |     fn new(n: usize) -> UnionFind {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84  |     fn find(&mut self, x: usize) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94  |     fn same(&mut self, a: usize, b: usize) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     fn unite(&mut self, a: usize, b: usize){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn debug(&mut self){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_4_3` is never used
[INFO] [stdout]    --> src/act2/chap4.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn act2_4_3(n: usize, k: usize, inputList: &Vec<Vec<usize>>) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_1_dfs` is never used
[INFO] [stdout]  --> src/act2/chap5.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn act2_5_1_dfs(v: usize, c: i32, color: &mut Vec<i32>, graph_list: &Vec<Vec<usize>>) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_1` is never used
[INFO] [stdout]   --> src/act2/chap5.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn act2_5_1(v:usize, graph_list: &Vec<Vec<usize>>) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `to` and `cost` are never read
[INFO] [stdout]   --> src/act2/chap5.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Edge{
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 37 |     to: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 38 |     cost: usize
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Edge` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `comp` are never used
[INFO] [stdout]   --> src/act2/chap5.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Edge{
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 42 |     fn new(to: usize, cost: usize) -> Edge {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn comp(&mut self, e: Edge) -> bool {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` is never used
[INFO] [stdout]   --> src/act2/chap5.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_2` is never used
[INFO] [stdout]   --> src/act2/chap5.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn act2_5_2(n: usize, r: usize, g_list: &Vec<Vec<Edge>>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `u`, `v`, and `cost` are never read
[INFO] [stdout]    --> src/act2/chap5.rs:106:2
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct UVEdge{
[INFO] [stdout]     |        ------ fields in this struct
[INFO] [stdout] 106 |     u: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 107 |     v: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 108 |     cost: i32
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UVEdge` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `comp` are never used
[INFO] [stdout]    --> src/act2/chap5.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | impl UVEdge{
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 112 |     fn new(u: usize, v: usize, cost: i32) -> UVEdge {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     fn comp(&mut self, e: UVEdge) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnionFind` is never constructed
[INFO] [stdout]    --> src/act2/chap5.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | struct UnionFind {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `find`, `same`, `unite`, and `debug` are never used
[INFO] [stdout]    --> src/act2/chap5.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl UnionFind {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 130 |     fn new(n: usize) -> UnionFind {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn find(&mut self, x: usize) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 |     fn same(&mut self, a: usize, b: usize) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn unite(&mut self, a: usize, b: usize){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn debug(&mut self){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kruskal` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn kruskal(es: &mut Vec<UVEdge>, v: usize, e:usize) -> i32 {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_3` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn act2_5_3(n: usize, m: usize, r: usize, xyd: &Vec<Vec<usize>>) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_4` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gcd` is never used
[INFO] [stdout]  --> src/act2/chap6.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn gcd(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_6_1` is never used
[INFO] [stdout]   --> src/act2/chap6.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn act2_6_1(p1: &Vec<i32>, p2: &Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_7_1` is never used
[INFO] [stdout]  --> src/act2/chap7.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn act2_7_1(n: u32, v1: &Vec<i32>, v2:&Vec<i32>) -> i32{
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bigM` should have a snake case name
[INFO] [stdout]    --> src/act2/chap3.rs:156:32
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn act2_3_7(n: usize, m:usize, bigM:usize) -> usize {
[INFO] [stdout]     |                                ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bigM` should have a snake case name
[INFO] [stdout]    --> src/act2/chap3.rs:181:49
[INFO] [stdout]     |
[INFO] [stdout] 181 | fn act2_3_8(n: usize, m: usize, a: &Vec<usize>, bigM: usize) -> usize {
[INFO] [stdout]     |                                                 ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `aCp` should have a snake case name
[INFO] [stdout]  --> src/act2/chap4.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut aCp = a.clone();
[INFO] [stdout]   |             ^^^ help: convert the identifier to snake case: `a_cp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bCp` should have a snake case name
[INFO] [stdout]  --> src/act2/chap4.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut bCp = b.clone();
[INFO] [stdout]   |             ^^^ help: convert the identifier to snake case: `b_cp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` should have a snake case name
[INFO] [stdout]   --> src/act2/chap4.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `vec_deque_sort`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inputList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:118:33
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn act2_4_3(n: usize, k: usize, inputList: &Vec<Vec<usize>>) -> usize {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: convert the identifier to snake case: `input_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `xList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let mut xList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `x_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut yList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `y_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:121:10
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let mut tList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `t_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/act2/chap4.rs:139:6
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if x < 0 || n <= x || y < 0 || n <= y {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/act2/chap4.rs:139:25
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if x < 0 || n <= x || y < 0 || n <= y {
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` should have a snake case name
[INFO] [stdout]   --> src/act2/chap5.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `vec_deque_sort`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 92 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.70s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "b21be737f3d63f2f2c17ad40860157832f6829519198f0debe486c72c75ce962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b21be737f3d63f2f2c17ad40860157832f6829519198f0debe486c72c75ce962", kill_on_drop: false }`
[INFO] [stdout] b21be737f3d63f2f2c17ad40860157832f6829519198f0debe486c72c75ce962
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4859d6cf1a1025e6b3d8cb729fef80ce005edb10301ed76ead3e7ffec83bb378
[INFO] running `Command { std: "docker" "start" "-a" "4859d6cf1a1025e6b3d8cb729fef80ce005edb10301ed76ead3e7ffec83bb378", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `queue::Queue`
[INFO] [stdout]  --> src/act2/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use queue::Queue;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/act2/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/act2/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/act2/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/act2/chap5.rs:206:15
[INFO] [stdout]     |
[INFO] [stdout] 206 |     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stdout]     |                  ^                                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 206 -     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stdout] 206 +     let result = 10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> src/act1/act1.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn act1_6_1(n: i32, a: Vec<u32>) -> u32 {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/act1/act1.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn act1_6_2(l: i32, n: i32, x: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/act2/chap1.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/act2/chap1.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]  --> src/act2/chap3.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut res = None;
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/act2/chap3.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut dp: &mut Vec<Vec<Option<usize>>> = &mut Vec::new();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/act2/chap3.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/act2/chap3.rs:61:6
[INFO] [stdout]    |
[INFO] [stdout] 61 |     for x in 0..100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/act2/chap3.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut dp: &mut Vec<usize> = &mut Vec::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/act2/chap3.rs:75:6
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_m`
[INFO] [stdout]    --> src/act2/chap3.rs:109:6
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let max_m = 1000;
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap3.rs:110:6
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut dp: &mut Vec<i32> = &mut Vec::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/act2/chap3.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mut dp: &mut Vec<usize> = &mut Vec::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/act2/chap3.rs:159:6
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/act2/chap3.rs:185:6
[INFO] [stdout]     |
[INFO] [stdout] 185 |     for i in 0..max_n {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap3.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 184 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::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/act2/chap4.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut bCp = b.clone();
[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/act2/chap4.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut n2 = n;
[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/act2/chap4.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut d = aCp[i] - pos;
[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/act2/chap4.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut l1 = que.pop_back().unwrap();
[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/act2/chap4.rs:56:7
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut l2 = que.pop_back().unwrap();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/act2/chap5.rs:72:6
[INFO] [stdout]    |
[INFO] [stdout] 72 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/act2/chap5.rs:66:23
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn act2_5_2(n: usize, r: usize, g_list: &Vec<Vec<Edge>>) -> usize {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/act2/chap5.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ml`
[INFO] [stdout]    --> src/act2/chap5.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |                       ^^ help: if this is intentional, prefix it with an underscore: `_ml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `md`
[INFO] [stdout]    --> src/act2/chap5.rs:211:34
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_md`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap5.rs:231:6
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut res = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mx` is never read
[INFO] [stdout]   --> src/act2/chap6.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut mx:i32 = 0;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mn` is never read
[INFO] [stdout]   --> src/act2/chap6.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut mn:i32 = 0;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act1_6_1` is never used
[INFO] [stdout]  --> src/act1/act1.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn act1_6_1(n: i32, a: Vec<u32>) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act1_6_2` is never used
[INFO] [stdout]   --> src/act1/act1.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn act1_6_2(l: i32, n: i32, x: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]   --> src/act1/act1.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn dfs(i: i32, sum: i32, n:i32, a: &Vec<i32>, k: i32) -> bool {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]  --> src/act2/chap1.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn dfs(i: i32, sum: i32, n:i32, a: &Vec<i32>, k: i32) -> bool {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_1` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn act2_1_1(n: i32, a: &Vec<i32>, k: i32) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_2_dfs` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn act2_1_2_dfs(x: i32, y: i32, n: i32, m: i32, field: &mut Vec<Vec<String>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_2` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn act2_1_2(n: i32, m: i32, field: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INF` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:52:7
[INFO] [stdout]    |
[INFO] [stdout] 52 | const INF: i32 = 100000000;
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_3_bfs` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn act2_1_3_bfs(sx: i32, sy: i32, gx: i32, gy: i32, maze: &mut Vec<Vec<String>>, d: &mut Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_1_3` is never used
[INFO] [stdout]   --> src/act2/chap1.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_1` is never used
[INFO] [stdout]  --> src/act2/chap2.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn act2_2_1(yen_cnt_list: &Vec<i32>, target: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_2` is never used
[INFO] [stdout]   --> src/act2/chap2.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn act2_2_2(n: usize, s: &Vec<usize>, t: &Vec<usize>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_3` is never used
[INFO] [stdout]   --> src/act2/chap2.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn act2_2_3(n: usize, s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_4` is never used
[INFO] [stdout]   --> src/act2/chap2.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn act2_2_4(n: usize, r: usize, x: &Vec<usize>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_2_5` is never used
[INFO] [stdout]   --> src/act2/chap2.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn act2_2_5(n: usize, l: &Vec<usize>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rec` is never used
[INFO] [stdout]  --> src/act2/chap3.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn rec(i: usize, j: usize, n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, dp: &mut Vec<Vec<Option<usize>>>) -> usize {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_1` is never used
[INFO] [stdout]   --> src/act2/chap3.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn act2_3_1(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_2` is never used
[INFO] [stdout]   --> src/act2/chap3.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn act2_3_2(n: usize, m: usize, s: &str, t: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_3` is never used
[INFO] [stdout]   --> src/act2/chap3.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn act2_3_3(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize{
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_4` is never used
[INFO] [stdout]   --> src/act2/chap3.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn act2_3_4(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_5` is never used
[INFO] [stdout]    --> src/act2/chap3.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn act2_3_5(n: usize, a: &Vec<usize>, m: &Vec<usize>, k: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_6` is never used
[INFO] [stdout]    --> src/act2/chap3.rs:138:4
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn act2_3_6(n: usize, a:&Vec<usize>) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_7` is never used
[INFO] [stdout]    --> src/act2/chap3.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn act2_3_7(n: usize, m:usize, bigM:usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_3_8` is never used
[INFO] [stdout]    --> src/act2/chap3.rs:181:4
[INFO] [stdout]     |
[INFO] [stdout] 181 | fn act2_3_8(n: usize, m: usize, a: &Vec<usize>, bigM: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_4_1` is never used
[INFO] [stdout]  --> src/act2/chap4.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn act2_4_1(n: usize, l: usize, p:usize, a: &Vec<usize>, b: &Vec<usize>) -> Option<usize> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` is never used
[INFO] [stdout]   --> src/act2/chap4.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_4_2` is never used
[INFO] [stdout]   --> src/act2/chap4.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn act2_4_2(n: usize, l: &Vec<usize>) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnionFind` is never constructed
[INFO] [stdout]   --> src/act2/chap4.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct UnionFind {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `find`, `same`, `unite`, and `debug` are never used
[INFO] [stdout]    --> src/act2/chap4.rs:73:8
[INFO] [stdout]     |
[INFO] [stdout] 72  | impl UnionFind {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 73  |     fn new(n: usize) -> UnionFind {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84  |     fn find(&mut self, x: usize) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94  |     fn same(&mut self, a: usize, b: usize) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     fn unite(&mut self, a: usize, b: usize){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn debug(&mut self){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_4_3` is never used
[INFO] [stdout]    --> src/act2/chap4.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn act2_4_3(n: usize, k: usize, inputList: &Vec<Vec<usize>>) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_1_dfs` is never used
[INFO] [stdout]  --> src/act2/chap5.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn act2_5_1_dfs(v: usize, c: i32, color: &mut Vec<i32>, graph_list: &Vec<Vec<usize>>) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_1` is never used
[INFO] [stdout]   --> src/act2/chap5.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn act2_5_1(v:usize, graph_list: &Vec<Vec<usize>>) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `to` and `cost` are never read
[INFO] [stdout]   --> src/act2/chap5.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Edge{
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 37 |     to: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 38 |     cost: usize
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Edge` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `comp` are never used
[INFO] [stdout]   --> src/act2/chap5.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Edge{
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 42 |     fn new(to: usize, cost: usize) -> Edge {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn comp(&mut self, e: Edge) -> bool {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` is never used
[INFO] [stdout]   --> src/act2/chap5.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_2` is never used
[INFO] [stdout]   --> src/act2/chap5.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn act2_5_2(n: usize, r: usize, g_list: &Vec<Vec<Edge>>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `u`, `v`, and `cost` are never read
[INFO] [stdout]    --> src/act2/chap5.rs:106:2
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct UVEdge{
[INFO] [stdout]     |        ------ fields in this struct
[INFO] [stdout] 106 |     u: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 107 |     v: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 108 |     cost: i32
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UVEdge` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling contest-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `new` and `comp` are never used
[INFO] [stdout]    --> src/act2/chap5.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | impl UVEdge{
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 112 |     fn new(u: usize, v: usize, cost: i32) -> UVEdge {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     fn comp(&mut self, e: UVEdge) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnionFind` is never constructed
[INFO] [stdout]    --> src/act2/chap5.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | struct UnionFind {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `find`, `same`, `unite`, and `debug` are never used
[INFO] [stdout]    --> src/act2/chap5.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl UnionFind {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 130 |     fn new(n: usize) -> UnionFind {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn find(&mut self, x: usize) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 |     fn same(&mut self, a: usize, b: usize) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn unite(&mut self, a: usize, b: usize){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn debug(&mut self){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kruskal` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn kruskal(es: &mut Vec<UVEdge>, v: usize, e:usize) -> i32 {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_3` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn act2_5_3(n: usize, m: usize, r: usize, xyd: &Vec<Vec<usize>>) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_4` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gcd` is never used
[INFO] [stdout]  --> src/act2/chap6.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn gcd(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_6_1` is never used
[INFO] [stdout]   --> src/act2/chap6.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn act2_6_1(p1: &Vec<i32>, p2: &Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_7_1` is never used
[INFO] [stdout]  --> src/act2/chap7.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn act2_7_1(n: u32, v1: &Vec<i32>, v2:&Vec<i32>) -> i32{
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bigM` should have a snake case name
[INFO] [stdout]    --> src/act2/chap3.rs:156:32
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn act2_3_7(n: usize, m:usize, bigM:usize) -> usize {
[INFO] [stdout]     |                                ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bigM` should have a snake case name
[INFO] [stdout]    --> src/act2/chap3.rs:181:49
[INFO] [stdout]     |
[INFO] [stdout] 181 | fn act2_3_8(n: usize, m: usize, a: &Vec<usize>, bigM: usize) -> usize {
[INFO] [stdout]     |                                                 ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `aCp` should have a snake case name
[INFO] [stdout]  --> src/act2/chap4.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut aCp = a.clone();
[INFO] [stdout]   |             ^^^ help: convert the identifier to snake case: `a_cp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bCp` should have a snake case name
[INFO] [stdout]  --> src/act2/chap4.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut bCp = b.clone();
[INFO] [stdout]   |             ^^^ help: convert the identifier to snake case: `b_cp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` should have a snake case name
[INFO] [stdout]   --> src/act2/chap4.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `vec_deque_sort`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inputList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:118:33
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn act2_4_3(n: usize, k: usize, inputList: &Vec<Vec<usize>>) -> usize {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: convert the identifier to snake case: `input_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `xList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let mut xList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `x_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut yList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `y_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:121:10
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let mut tList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `t_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/act2/chap4.rs:139:6
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if x < 0 || n <= x || y < 0 || n <= y {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/act2/chap4.rs:139:25
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if x < 0 || n <= x || y < 0 || n <= y {
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` should have a snake case name
[INFO] [stdout]   --> src/act2/chap5.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `vec_deque_sort`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 92 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `queue::Queue`
[INFO] [stdout]  --> src/act2/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use queue::Queue;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/act2/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/act2/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/act2/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/act2/chap5.rs:206:15
[INFO] [stdout]     |
[INFO] [stdout] 206 |     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stdout]     |                  ^                                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 206 -     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stdout] 206 +     let result = 10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> src/act1/act1.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn act1_6_1(n: i32, a: Vec<u32>) -> u32 {
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/act1/act1.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn act1_6_2(l: i32, n: i32, x: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/act2/chap1.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/act2/chap1.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap1.rs:122:7
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let mut input = vec![vec!["W",".",".",".",".",".",".",".",".","W","W","."],
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap1.rs:145:7
[INFO] [stdout]     |
[INFO] [stdout] 145 |         let mut input = vec![vec!["#","S","#","#","#","#","#","#",".","#"],
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]  --> src/act2/chap3.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut res = None;
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/act2/chap3.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut dp: &mut Vec<Vec<Option<usize>>> = &mut Vec::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/act2/chap3.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/act2/chap3.rs:61:6
[INFO] [stdout]    |
[INFO] [stdout] 61 |     for x in 0..100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/act2/chap3.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut dp: &mut Vec<usize> = &mut Vec::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/act2/chap3.rs:75:6
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_m`
[INFO] [stdout]    --> src/act2/chap3.rs:109:6
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let max_m = 1000;
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap3.rs:110:6
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut dp: &mut Vec<i32> = &mut Vec::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/act2/chap3.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mut dp: &mut Vec<usize> = &mut Vec::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/act2/chap3.rs:159:6
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stdout]     |         ----^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/act2/chap3.rs:185:6
[INFO] [stdout]     |
[INFO] [stdout] 185 |     for i in 0..max_n {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap3.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 184 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::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/act2/chap4.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut bCp = b.clone();
[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/act2/chap4.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut n2 = n;
[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/act2/chap4.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut d = aCp[i] - pos;
[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/act2/chap4.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut l1 = que.pop_back().unwrap();
[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/act2/chap4.rs:56:7
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut l2 = que.pop_back().unwrap();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/act2/chap5.rs:72:6
[INFO] [stdout]    |
[INFO] [stdout] 72 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/act2/chap5.rs:66:23
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn act2_5_2(n: usize, r: usize, g_list: &Vec<Vec<Edge>>) -> usize {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/act2/chap5.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ml`
[INFO] [stdout]    --> src/act2/chap5.rs:211:23
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |                       ^^ help: if this is intentional, prefix it with an underscore: `_ml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `md`
[INFO] [stdout]    --> src/act2/chap5.rs:211:34
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_md`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/act2/chap5.rs:231:6
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut res = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mx` is never read
[INFO] [stdout]   --> src/act2/chap6.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut mx:i32 = 0;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mn` is never read
[INFO] [stdout]   --> src/act2/chap6.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut mn:i32 = 0;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]   --> src/act1/act1.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn dfs(i: i32, sum: i32, n:i32, a: &Vec<i32>, k: i32) -> bool {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `debug` is never used
[INFO] [stdout]    --> src/act2/chap4.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 72  | impl UnionFind {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn debug(&mut self){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `to` and `cost` are never read
[INFO] [stdout]   --> src/act2/chap5.rs:37:2
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Edge{
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 37 |     to: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 38 |     cost: usize
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Edge` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `comp` are never used
[INFO] [stdout]   --> src/act2/chap5.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Edge{
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 42 |     fn new(to: usize, cost: usize) -> Edge {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn comp(&mut self, e: Edge) -> bool {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` is never used
[INFO] [stdout]   --> src/act2/chap5.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_2` is never used
[INFO] [stdout]   --> src/act2/chap5.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn act2_5_2(n: usize, r: usize, g_list: &Vec<Vec<Edge>>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `u`, `v`, and `cost` are never read
[INFO] [stdout]    --> src/act2/chap5.rs:106:2
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct UVEdge{
[INFO] [stdout]     |        ------ fields in this struct
[INFO] [stdout] 106 |     u: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 107 |     v: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 108 |     cost: i32
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UVEdge` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `comp` are never used
[INFO] [stdout]    --> src/act2/chap5.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | impl UVEdge{
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 112 |     fn new(u: usize, v: usize, cost: i32) -> UVEdge {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     fn comp(&mut self, e: UVEdge) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnionFind` is never constructed
[INFO] [stdout]    --> src/act2/chap5.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | struct UnionFind {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `find`, `same`, `unite`, and `debug` are never used
[INFO] [stdout]    --> src/act2/chap5.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl UnionFind {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 130 |     fn new(n: usize) -> UnionFind {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn find(&mut self, x: usize) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 |     fn same(&mut self, a: usize, b: usize) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     fn unite(&mut self, a: usize, b: usize){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn debug(&mut self){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kruskal` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn kruskal(es: &mut Vec<UVEdge>, v: usize, e:usize) -> i32 {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_3` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn act2_5_3(n: usize, m: usize, r: usize, xyd: &Vec<Vec<usize>>) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_4` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_2_test` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:248:5
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn act2_5_2_test(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_3_test` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:258:5
[INFO] [stdout]     |
[INFO] [stdout] 258 |     fn act2_5_3_test(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `act2_5_4_test` is never used
[INFO] [stdout]    --> src/act2/chap5.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 268 |     fn act2_5_4_test(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sInput` should have a snake case name
[INFO] [stdout]    --> src/act2/chap1.rs:133:11
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let mut sInput = Vec::new();
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `s_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sInput` should have a snake case name
[INFO] [stdout]    --> src/act2/chap1.rs:156:11
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let mut sInput = Vec::new();
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `s_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bigM` should have a snake case name
[INFO] [stdout]    --> src/act2/chap3.rs:156:32
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn act2_3_7(n: usize, m:usize, bigM:usize) -> usize {
[INFO] [stdout]     |                                ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bigM` should have a snake case name
[INFO] [stdout]    --> src/act2/chap3.rs:181:49
[INFO] [stdout]     |
[INFO] [stdout] 181 | fn act2_3_8(n: usize, m: usize, a: &Vec<usize>, bigM: usize) -> usize {
[INFO] [stdout]     |                                                 ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `aCp` should have a snake case name
[INFO] [stdout]  --> src/act2/chap4.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut aCp = a.clone();
[INFO] [stdout]   |             ^^^ help: convert the identifier to snake case: `a_cp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bCp` should have a snake case name
[INFO] [stdout]  --> src/act2/chap4.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut bCp = b.clone();
[INFO] [stdout]   |             ^^^ help: convert the identifier to snake case: `b_cp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` should have a snake case name
[INFO] [stdout]   --> src/act2/chap4.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `vec_deque_sort`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inputList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:118:33
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn act2_4_3(n: usize, k: usize, inputList: &Vec<Vec<usize>>) -> usize {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: convert the identifier to snake case: `input_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `xList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 |     let mut xList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `x_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `yList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let mut yList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `y_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `tList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:121:10
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let mut tList = Vec::new();
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `t_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/act2/chap4.rs:139:6
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if x < 0 || n <= x || y < 0 || n <= y {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/act2/chap4.rs:139:25
[INFO] [stdout]     |
[INFO] [stdout] 139 |         if x < 0 || n <= x || y < 0 || n <= y {
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inputList` should have a snake case name
[INFO] [stdout]    --> src/act2/chap4.rs:177:7
[INFO] [stdout]     |
[INFO] [stdout] 177 |         let inputList = vec![vec![1,101,1],
[INFO] [stdout]     |             ^^^^^^^^^ help: convert the identifier to snake case: `input_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vecDequeSort` should have a snake case name
[INFO] [stdout]   --> src/act2/chap5.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `vec_deque_sort`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 67 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "4859d6cf1a1025e6b3d8cb729fef80ce005edb10301ed76ead3e7ffec83bb378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4859d6cf1a1025e6b3d8cb729fef80ce005edb10301ed76ead3e7ffec83bb378", kill_on_drop: false }`
[INFO] [stdout] 4859d6cf1a1025e6b3d8cb729fef80ce005edb10301ed76ead3e7ffec83bb378
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9da3722b0c33668879ba7b88b3d082e0930197f6db06d0061332bc9c2e448944
[INFO] running `Command { std: "docker" "start" "-a" "9da3722b0c33668879ba7b88b3d082e0930197f6db06d0061332bc9c2e448944", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `queue::Queue`
[INFO] [stderr]  --> src/act2/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use queue::Queue;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/act2/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/act2/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::VecDeque`
[INFO] [stderr]  --> src/act2/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::VecDeque;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/act2/chap5.rs:206:15
[INFO] [stderr]     |
[INFO] [stderr] 206 |     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stderr]     |                  ^                                                                      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 206 -     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stderr] 206 +     let result = 10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]  --> src/act1/act1.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn act1_6_1(n: i32, a: Vec<u32>) -> u32 {
[INFO] [stderr]   |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/act1/act1.rs:15:21
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn act1_6_2(l: i32, n: i32, x: Vec<i32>) -> (i32, i32) {
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/act2/chap1.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]   --> src/act2/chap1.rs:87:21
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]  --> src/act2/chap3.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut res = None;
[INFO] [stderr]   |             ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/act2/chap3.rs:23:6
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut dp: &mut Vec<Vec<Option<usize>>> = &mut Vec::new();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/act2/chap3.rs:37:6
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/act2/chap3.rs:61:6
[INFO] [stderr]    |
[INFO] [stderr] 61 |     for x in 0..100 {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/act2/chap3.rs:60:6
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let mut dp: &mut Vec<usize> = &mut Vec::new();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/act2/chap3.rs:75:6
[INFO] [stderr]    |
[INFO] [stderr] 75 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_m`
[INFO] [stderr]    --> src/act2/chap3.rs:109:6
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let max_m = 1000;
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_max_m`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/act2/chap3.rs:110:6
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let mut dp: &mut Vec<i32> = &mut Vec::new();
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/act2/chap3.rs:140:6
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let mut dp: &mut Vec<usize> = &mut Vec::new();
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/act2/chap3.rs:159:6
[INFO] [stderr]     |
[INFO] [stderr] 159 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/act2/chap3.rs:185:6
[INFO] [stderr]     |
[INFO] [stderr] 185 |     for i in 0..max_n {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/act2/chap3.rs:184:6
[INFO] [stderr]     |
[INFO] [stderr] 184 |     let mut dp: &mut Vec<Vec<usize>> = &mut Vec::new();
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/act2/chap4.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut bCp = b.clone();
[INFO] [stderr]   |         ----^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/act2/chap4.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut n2 = n;
[INFO] [stderr]   |         ----^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/act2/chap4.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let mut d = aCp[i] - pos;
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/act2/chap4.rs:55:7
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut l1 = que.pop_back().unwrap();
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/act2/chap4.rs:56:7
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut l2 = que.pop_back().unwrap();
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/act2/chap5.rs:72:6
[INFO] [stderr]    |
[INFO] [stderr] 72 |     for i in 0..n {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/act2/chap5.rs:66:23
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn act2_5_2(n: usize, r: usize, g_list: &Vec<Vec<Edge>>) -> usize {
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/act2/chap5.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ml`
[INFO] [stderr]    --> src/act2/chap5.rs:211:23
[INFO] [stderr]     |
[INFO] [stderr] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stderr]     |                       ^^ help: if this is intentional, prefix it with an underscore: `_ml`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `md`
[INFO] [stderr]    --> src/act2/chap5.rs:211:34
[INFO] [stderr]     |
[INFO] [stderr] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stderr]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_md`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/act2/chap5.rs:231:6
[INFO] [stderr]     |
[INFO] [stderr] 231 |     let mut res = 0;
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `mx` is never read
[INFO] [stderr]   --> src/act2/chap6.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut mx:i32 = 0;
[INFO] [stderr]    |             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `mn` is never read
[INFO] [stderr]   --> src/act2/chap6.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut mn:i32 = 0;
[INFO] [stderr]    |             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function `act1_6_1` is never used
[INFO] [stderr]  --> src/act1/act1.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn act1_6_1(n: i32, a: Vec<u32>) -> u32 {
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `act1_6_2` is never used
[INFO] [stderr]   --> src/act1/act1.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn act1_6_2(l: i32, n: i32, x: Vec<i32>) -> (i32, i32) {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dfs` is never used
[INFO] [stderr]   --> src/act1/act1.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn dfs(i: i32, sum: i32, n:i32, a: &Vec<i32>, k: i32) -> bool {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dfs` is never used
[INFO] [stderr]  --> src/act2/chap1.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn dfs(i: i32, sum: i32, n:i32, a: &Vec<i32>, k: i32) -> bool {
[INFO] [stderr]   |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_1_1` is never used
[INFO] [stderr]   --> src/act2/chap1.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn act2_1_1(n: i32, a: &Vec<i32>, k: i32) -> String {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_1_2_dfs` is never used
[INFO] [stderr]   --> src/act2/chap1.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn act2_1_2_dfs(x: i32, y: i32, n: i32, m: i32, field: &mut Vec<Vec<String>>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_1_2` is never used
[INFO] [stderr]   --> src/act2/chap1.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn act2_1_2(n: i32, m: i32, field: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `INF` is never used
[INFO] [stderr]   --> src/act2/chap1.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 | const INF: i32 = 100000000;
[INFO] [stderr]    |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_1_3_bfs` is never used
[INFO] [stderr]   --> src/act2/chap1.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn act2_1_3_bfs(sx: i32, sy: i32, gx: i32, gy: i32, maze: &mut Vec<Vec<String>>, d: &mut Vec<Vec<i32>>) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_1_3` is never used
[INFO] [stderr]   --> src/act2/chap1.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn act2_1_3(n: i32, m: i32, maze: &mut Vec<Vec<String>>) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_2_1` is never used
[INFO] [stderr]  --> src/act2/chap2.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn act2_2_1(yen_cnt_list: &Vec<i32>, target: i32) -> i32 {
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_2_2` is never used
[INFO] [stderr]   --> src/act2/chap2.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn act2_2_2(n: usize, s: &Vec<usize>, t: &Vec<usize>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_2_3` is never used
[INFO] [stderr]   --> src/act2/chap2.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn act2_2_3(n: usize, s: &str) -> String {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_2_4` is never used
[INFO] [stderr]   --> src/act2/chap2.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn act2_2_4(n: usize, r: usize, x: &Vec<usize>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_2_5` is never used
[INFO] [stderr]   --> src/act2/chap2.rs:89:4
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn act2_2_5(n: usize, l: &Vec<usize>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `rec` is never used
[INFO] [stderr]  --> src/act2/chap3.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn rec(i: usize, j: usize, n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, dp: &mut Vec<Vec<Option<usize>>>) -> usize {
[INFO] [stderr]   |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_3_1` is never used
[INFO] [stderr]   --> src/act2/chap3.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn act2_3_1(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize{
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_3_2` is never used
[INFO] [stderr]   --> src/act2/chap3.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn act2_3_2(n: usize, m: usize, s: &str, t: &str) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_3_3` is never used
[INFO] [stderr]   --> src/act2/chap3.rs:59:4
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn act2_3_3(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize{
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_3_4` is never used
[INFO] [stderr]   --> src/act2/chap3.rs:72:4
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn act2_3_4(n: usize, w_list: &Vec<usize>, v_list: &Vec<usize>, w: usize) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_3_5` is never used
[INFO] [stderr]    --> src/act2/chap3.rs:107:4
[INFO] [stderr]     |
[INFO] [stderr] 107 | fn act2_3_5(n: usize, a: &Vec<usize>, m: &Vec<usize>, k: usize) -> String {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_3_6` is never used
[INFO] [stderr]    --> src/act2/chap3.rs:138:4
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn act2_3_6(n: usize, a:&Vec<usize>) -> usize {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_3_7` is never used
[INFO] [stderr]    --> src/act2/chap3.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn act2_3_7(n: usize, m:usize, bigM:usize) -> usize {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_3_8` is never used
[INFO] [stderr]    --> src/act2/chap3.rs:181:4
[INFO] [stderr]     |
[INFO] [stderr] 181 | fn act2_3_8(n: usize, m: usize, a: &Vec<usize>, bigM: usize) -> usize {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_4_1` is never used
[INFO] [stderr]  --> src/act2/chap4.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn act2_4_1(n: usize, l: usize, p:usize, a: &Vec<usize>, b: &Vec<usize>) -> Option<usize> {
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `vecDequeSort` is never used
[INFO] [stderr]   --> src/act2/chap4.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_4_2` is never used
[INFO] [stderr]   --> src/act2/chap4.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn act2_4_2(n: usize, l: &Vec<usize>) -> i64 {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `UnionFind` is never constructed
[INFO] [stderr]   --> src/act2/chap4.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | struct UnionFind {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `find`, `same`, `unite`, and `debug` are never used
[INFO] [stderr]    --> src/act2/chap4.rs:73:8
[INFO] [stderr]     |
[INFO] [stderr] 72  | impl UnionFind {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 73  |     fn new(n: usize) -> UnionFind {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 84  |     fn find(&mut self, x: usize) -> usize {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 94  |     fn same(&mut self, a: usize, b: usize) -> bool {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 98  |     fn unite(&mut self, a: usize, b: usize){
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 113 |     fn debug(&mut self){
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_4_3` is never used
[INFO] [stderr]    --> src/act2/chap4.rs:118:4
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn act2_4_3(n: usize, k: usize, inputList: &Vec<Vec<usize>>) -> usize {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_5_1_dfs` is never used
[INFO] [stderr]  --> src/act2/chap5.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn act2_5_1_dfs(v: usize, c: i32, color: &mut Vec<i32>, graph_list: &Vec<Vec<usize>>) -> bool {
[INFO] [stderr]   |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_5_1` is never used
[INFO] [stderr]   --> src/act2/chap5.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn act2_5_1(v:usize, graph_list: &Vec<Vec<usize>>) -> String {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `to` and `cost` are never read
[INFO] [stderr]   --> src/act2/chap5.rs:37:2
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct Edge{
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr] 37 |     to: usize,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 38 |     cost: usize
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Edge` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `comp` are never used
[INFO] [stderr]   --> src/act2/chap5.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 41 | impl Edge{
[INFO] [stderr]    | --------- associated items in this implementation
[INFO] [stderr] 42 |     fn new(to: usize, cost: usize) -> Edge {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 48 |     fn comp(&mut self, e: Edge) -> bool {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `vecDequeSort` is never used
[INFO] [stderr]   --> src/act2/chap5.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_5_2` is never used
[INFO] [stderr]   --> src/act2/chap5.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn act2_5_2(n: usize, r: usize, g_list: &Vec<Vec<Edge>>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `u`, `v`, and `cost` are never read
[INFO] [stderr]    --> src/act2/chap5.rs:106:2
[INFO] [stderr]     |
[INFO] [stderr] 105 | struct UVEdge{
[INFO] [stderr]     |        ------ fields in this struct
[INFO] [stderr] 106 |     u: usize,
[INFO] [stderr]     |     ^
[INFO] [stderr] 107 |     v: usize,
[INFO] [stderr]     |     ^
[INFO] [stderr] 108 |     cost: i32
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `UVEdge` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `comp` are never used
[INFO] [stderr]    --> src/act2/chap5.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 111 | impl UVEdge{
[INFO] [stderr]     | ----------- associated items in this implementation
[INFO] [stderr] 112 |     fn new(u: usize, v: usize, cost: i32) -> UVEdge {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 119 |     fn comp(&mut self, e: UVEdge) -> bool {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `UnionFind` is never constructed
[INFO] [stderr]    --> src/act2/chap5.rs:124:8
[INFO] [stderr]     |
[INFO] [stderr] 124 | struct UnionFind {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `find`, `same`, `unite`, and `debug` are never used
[INFO] [stderr]    --> src/act2/chap5.rs:130:8
[INFO] [stderr]     |
[INFO] [stderr] 129 | impl UnionFind {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 130 |     fn new(n: usize) -> UnionFind {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 141 |     fn find(&mut self, x: usize) -> usize {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 151 |     fn same(&mut self, a: usize, b: usize) -> bool {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     fn unite(&mut self, a: usize, b: usize){
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     fn debug(&mut self){
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `kruskal` is never used
[INFO] [stderr]    --> src/act2/chap5.rs:175:4
[INFO] [stderr]     |
[INFO] [stderr] 175 | fn kruskal(es: &mut Vec<UVEdge>, v: usize, e:usize) -> i32 {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_5_3` is never used
[INFO] [stderr]    --> src/act2/chap5.rs:189:4
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn act2_5_3(n: usize, m: usize, r: usize, xyd: &Vec<Vec<usize>>) -> i32 {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_5_4` is never used
[INFO] [stderr]    --> src/act2/chap5.rs:211:4
[INFO] [stderr]     |
[INFO] [stderr] 211 | fn act2_5_4(m: usize, ml: usize, md: usize, abd_l: &Vec<Vec<usize>>,
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gcd` is never used
[INFO] [stderr]  --> src/act2/chap6.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn gcd(a: i32, b: i32) -> i32 {
[INFO] [stderr]   |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_6_1` is never used
[INFO] [stderr]   --> src/act2/chap6.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn act2_6_1(p1: &Vec<i32>, p2: &Vec<i32>) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_7_1` is never used
[INFO] [stderr]  --> src/act2/chap7.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn act2_7_1(n: u32, v1: &Vec<i32>, v2:&Vec<i32>) -> i32{
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `bigM` should have a snake case name
[INFO] [stderr]    --> src/act2/chap3.rs:156:32
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn act2_3_7(n: usize, m:usize, bigM:usize) -> usize {
[INFO] [stderr]     |                                ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `bigM` should have a snake case name
[INFO] [stderr]    --> src/act2/chap3.rs:181:49
[INFO] [stderr]     |
[INFO] [stderr] 181 | fn act2_3_8(n: usize, m: usize, a: &Vec<usize>, bigM: usize) -> usize {
[INFO] [stderr]     |                                                 ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `aCp` should have a snake case name
[INFO] [stderr]  --> src/act2/chap4.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut aCp = a.clone();
[INFO] [stderr]   |             ^^^ help: convert the identifier to snake case: `a_cp`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `bCp` should have a snake case name
[INFO] [stderr]  --> src/act2/chap4.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut bCp = b.clone();
[INFO] [stderr]   |             ^^^ help: convert the identifier to snake case: `b_cp`
[INFO] [stderr] 
[INFO] [stderr] warning: function `vecDequeSort` should have a snake case name
[INFO] [stderr]   --> src/act2/chap4.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stderr]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `vec_deque_sort`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `inputList` should have a snake case name
[INFO] [stderr]    --> src/act2/chap4.rs:118:33
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn act2_4_3(n: usize, k: usize, inputList: &Vec<Vec<usize>>) -> usize {
[INFO] [stderr]     |                                 ^^^^^^^^^ help: convert the identifier to snake case: `input_list`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `xList` should have a snake case name
[INFO] [stderr]    --> src/act2/chap4.rs:119:10
[INFO] [stderr]     |
[INFO] [stderr] 119 |     let mut xList = Vec::new();
[INFO] [stderr]     |             ^^^^^ help: convert the identifier to snake case: `x_list`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `yList` should have a snake case name
[INFO] [stderr]    --> src/act2/chap4.rs:120:10
[INFO] [stderr]     |
[INFO] [stderr] 120 |     let mut yList = Vec::new();
[INFO] [stderr]     |             ^^^^^ help: convert the identifier to snake case: `y_list`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `tList` should have a snake case name
[INFO] [stderr]    --> src/act2/chap4.rs:121:10
[INFO] [stderr]     |
[INFO] [stderr] 121 |     let mut tList = Vec::new();
[INFO] [stderr]     |             ^^^^^ help: convert the identifier to snake case: `t_list`
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/act2/chap4.rs:139:6
[INFO] [stderr]     |
[INFO] [stderr] 139 |         if x < 0 || n <= x || y < 0 || n <= y {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/act2/chap4.rs:139:25
[INFO] [stderr]     |
[INFO] [stderr] 139 |         if x < 0 || n <= x || y < 0 || n <= y {
[INFO] [stderr]     |                               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `vecDequeSort` should have a snake case name
[INFO] [stderr]   --> src/act2/chap5.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn vecDequeSort(vd: &VecDeque<usize>) -> VecDeque<usize> {
[INFO] [stderr]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `vec_deque_sort`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/act2/chap1.rs:122:7
[INFO] [stderr]     |
[INFO] [stderr] 122 |         let mut input = vec![vec!["W",".",".",".",".",".",".",".",".","W","W","."],
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/act2/chap1.rs:145:7
[INFO] [stderr]     |
[INFO] [stderr] 145 |         let mut input = vec![vec!["#","S","#","#","#","#","#","#",".","#"],
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/act2/chap3.rs:23:6
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut dp: &mut Vec<Vec<Option<usize>>> = &mut Vec::new();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `dfs` is never used
[INFO] [stderr]   --> src/act1/act1.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn dfs(i: i32, sum: i32, n:i32, a: &Vec<i32>, k: i32) -> bool {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `debug` is never used
[INFO] [stderr]    --> src/act2/chap4.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 72  | impl UnionFind {
[INFO] [stderr]     | -------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 113 |     fn debug(&mut self){
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_5_2_test` is never used
[INFO] [stderr]    --> src/act2/chap5.rs:248:5
[INFO] [stderr]     |
[INFO] [stderr] 248 |     fn act2_5_2_test(){
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_5_3_test` is never used
[INFO] [stderr]    --> src/act2/chap5.rs:258:5
[INFO] [stderr]     |
[INFO] [stderr] 258 |     fn act2_5_3_test(){
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `act2_5_4_test` is never used
[INFO] [stderr]    --> src/act2/chap5.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     fn act2_5_4_test(){
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `sInput` should have a snake case name
[INFO] [stderr]    --> src/act2/chap1.rs:133:11
[INFO] [stderr]     |
[INFO] [stderr] 133 |         let mut sInput = Vec::new();
[INFO] [stderr]     |                 ^^^^^^ help: convert the identifier to snake case: `s_input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `sInput` should have a snake case name
[INFO] [stderr]    --> src/act2/chap1.rs:156:11
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let mut sInput = Vec::new();
[INFO] [stderr]     |                 ^^^^^^ help: convert the identifier to snake case: `s_input`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `bigM` should have a snake case name
[INFO] [stderr]    --> src/act2/chap3.rs:156:32
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn act2_3_7(n: usize, m:usize, bigM:usize) -> usize {
[INFO] [stderr]     |                                ^^^^ help: convert the identifier to snake case: `big_m`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `inputList` should have a snake case name
[INFO] [stderr]    --> src/act2/chap4.rs:177:7
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let inputList = vec![vec![1,101,1],
[INFO] [stderr]     |             ^^^^^^^^^ help: convert the identifier to snake case: `input_list`
[INFO] [stderr] 
[INFO] [stderr] warning: `contest-book` (lib) generated 92 warnings (run `cargo fix --lib -p contest-book` to apply 31 suggestions)
[INFO] [stderr] warning: `contest-book` (lib test) generated 67 warnings (55 duplicates) (run `cargo fix --lib -p contest-book --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/contest_book-ad004126cf7f4a98)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test act2::chap1::tests::act2_1_3_test ... ok
[INFO] [stdout] test act2::chap2::tests::act2_2_1_test ... ok
[INFO] [stdout] test act2::chap1::tests::act2_1_1_test ... ok
[INFO] [stdout] test act1::act1::tests::act1_6_1_test ... ok
[INFO] [stdout] test act1::act1::tests::act1_6_2_test ... ok
[INFO] [stdout] test act2::chap1::tests::act2_1_2_test ... ok
[INFO] [stdout] test act2::chap2::tests::act2_2_2_test ... ok
[INFO] [stdout] test act2::chap3::tests::act2_3_5_test ... ok
[INFO] [stdout] test act2::chap3::tests::act2_3_3_test ... ok
[INFO] [stdout] test act2::chap2::tests::act2_2_3_test ... ok
[INFO] [stdout] test act2::chap2::tests::act2_2_4_test ... ok
[INFO] [stdout] test act2::chap3::tests::act2_3_6_test ... ok
[INFO] [stdout] test act2::chap2::tests::act2_2_5_test ... ok
[INFO] [stdout] test act2::chap4::tests::act2_4_1_test ... ok
[INFO] [stdout] test act2::chap4::tests::act2_4_2_test ... ok
[INFO] [stdout] test act2::chap6::tests::act2_6_1_test ... ok
[INFO] [stdout] test act2::chap4::tests::act2_4_3_test ... ok
[INFO] [stdout] test act2::chap5::tests::act2_5_1_test ... ok
[INFO] [stdout] test act2::chap7::tests::act2_7_1_test ... ok
[INFO] [stdout] test act2::chap3::tests::act2_3_8_test ... ok
[INFO] [stdout] test act2::chap3::tests::act2_3_2_test ... ok
[INFO] [stdout] test act2::chap3::tests::act2_3_4_test ... ok
[INFO] [stdout] test act2::chap3::tests::act2_3_7_test ... ok
[INFO] [stdout] test act2::chap3::tests::act2_3_1_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests contest-book
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/act2/chap5.rs:206:15
[INFO] [stderr]     |
[INFO] [stderr] 206 |     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stderr]     |                  ^                                                                      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 206 -     let result = (10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len()));
[INFO] [stderr] 206 +     let result = 10000i32 * ((n + m) as i32) + kruskal(&mut es, vs.len(), x_list.len());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "9da3722b0c33668879ba7b88b3d082e0930197f6db06d0061332bc9c2e448944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da3722b0c33668879ba7b88b3d082e0930197f6db06d0061332bc9c2e448944", kill_on_drop: false }`
[INFO] [stdout] 9da3722b0c33668879ba7b88b3d082e0930197f6db06d0061332bc9c2e448944
