[INFO] updating cached repository https://github.com/kmakeev/puzzle15rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2a0a1577f752888a68360bf2d818b46b2513cdd5
[INFO] testing kmakeev/puzzle15rust against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmakeev%2Fpuzzle15rust" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kmakeev/puzzle15rust on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kmakeev/puzzle15rust
[INFO] finished tweaking git repo https://github.com/kmakeev/puzzle15rust
[INFO] tweaked toml for git repo https://github.com/kmakeev/puzzle15rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kmakeev/puzzle15rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3280625d5cc8849df56bf36a162b7006b9ec40aab7e32b3341f4b29cb4937dbc
[INFO] running `"docker" "start" "-a" "3280625d5cc8849df56bf36a162b7006b9ec40aab7e32b3341f4b29cb4937dbc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/puzzle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/puzzle.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:195:44
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k2`
[INFO] [stderr]    --> src/puzzle.rs:195:53
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                                     ^^ help: if this is intentional, prefix it with an underscore: `_k2`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:194:13
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:196:19
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let (key, value) = best.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/puzzle.rs:193:61
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn get_best_step(& self, map: & HashMap<Vec<i8>, Step>, f: u32) -> Vec<i8> {
[INFO] [stderr]     |                                                             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:203:50
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let result = map.par_iter().find_first(|(k1, s1)| (s1.hash_current == hash));
[INFO] [stderr]     |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:204:19
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let (key, value) = result.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/puzzle.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let h:i8 = self.size_h;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/puzzle.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |         let v:i8 = self.size_v;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cost`
[INFO] [stderr]    --> src/puzzle.rs:218:14
[INFO] [stderr]     |
[INFO] [stderr] 218 |         let (cost, h) = self.cost(self.start.clone());
[INFO] [stderr]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/puzzle.rs:245:26
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     Some(result) => {continue},
[INFO] [stderr]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:286:17
[INFO] [stderr]     |
[INFO] [stderr] 286 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:335:17
[INFO] [stderr]     |
[INFO] [stderr] 335 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/puzzle.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let mut pos = pos_opt.unwrap() as i8;
[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/puzzle.rs:224:17
[INFO] [stderr]     |
[INFO] [stderr] 224 |             let mut now = SystemTime::now();
[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/puzzle.rs:229:17
[INFO] [stderr]     |
[INFO] [stderr] 229 |             let mut val = self.get_best_step(&h_open_sets, f);
[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/puzzle.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |                     let mut val = self.get_by_hash(&mut h_close_sets, prev.hash_prev);
[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/puzzle.rs:448:25
[INFO] [stderr]     |
[INFO] [stderr] 448 |                     let mut v: i8 = (((*j-1) / self.size_v) - (c as i8 / self.size_v)).abs();
[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/puzzle.rs:449:25
[INFO] [stderr]     |
[INFO] [stderr] 449 |                     let mut h: i8 = (((*j-1) % self.size_h) - (c as i8 % self.size_h)).abs();
[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/puzzle.rs:470:21
[INFO] [stderr]     |
[INFO] [stderr] 470 |                 let mut position1: i8;
[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/puzzle.rs:471:21
[INFO] [stderr]     |
[INFO] [stderr] 471 |                 let mut position2: i8;
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count_solutions` is never read
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut count_solutions:i32 = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Err(n) => {
[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/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         Err(n) => {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Err(n) => {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:146:32
[INFO] [stderr]     |
[INFO] [stderr] 146 | ...                   Ok(t) => {}
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:155:24
[INFO] [stderr]     |
[INFO] [stderr] 155 |                     Ok(t) => {println!();
[INFO] [stderr]     |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut size_h:i8;
[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/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut size_v:i8;
[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/main.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |                         let mut result:i8 = match set {
[INFO] [stderr]     |                             ----^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.59s
[INFO] running `"docker" "inspect" "3280625d5cc8849df56bf36a162b7006b9ec40aab7e32b3341f4b29cb4937dbc"`
[INFO] running `"docker" "rm" "-f" "3280625d5cc8849df56bf36a162b7006b9ec40aab7e32b3341f4b29cb4937dbc"`
[INFO] [stdout] 3280625d5cc8849df56bf36a162b7006b9ec40aab7e32b3341f4b29cb4937dbc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9af0bf6a39da61c6c99e29113bd4212e74ed2ca9279bd44627a294a7c9b63ef1
[INFO] running `"docker" "start" "-a" "9af0bf6a39da61c6c99e29113bd4212e74ed2ca9279bd44627a294a7c9b63ef1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/puzzle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/puzzle.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:195:44
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k2`
[INFO] [stderr]    --> src/puzzle.rs:195:53
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                                     ^^ help: if this is intentional, prefix it with an underscore: `_k2`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:194:13
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:196:19
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let (key, value) = best.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/puzzle.rs:193:61
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn get_best_step(& self, map: & HashMap<Vec<i8>, Step>, f: u32) -> Vec<i8> {
[INFO] [stderr]     |                                                             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:203:50
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let result = map.par_iter().find_first(|(k1, s1)| (s1.hash_current == hash));
[INFO] [stderr]     |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:204:19
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let (key, value) = result.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/puzzle.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let h:i8 = self.size_h;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/puzzle.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |         let v:i8 = self.size_v;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cost`
[INFO] [stderr]    --> src/puzzle.rs:218:14
[INFO] [stderr]     |
[INFO] [stderr] 218 |         let (cost, h) = self.cost(self.start.clone());
[INFO] [stderr]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/puzzle.rs:245:26
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     Some(result) => {continue},
[INFO] [stderr]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:286:17
[INFO] [stderr]     |
[INFO] [stderr] 286 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:335:17
[INFO] [stderr]     |
[INFO] [stderr] 335 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/puzzle.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let mut pos = pos_opt.unwrap() as i8;
[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/puzzle.rs:224:17
[INFO] [stderr]     |
[INFO] [stderr] 224 |             let mut now = SystemTime::now();
[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/puzzle.rs:229:17
[INFO] [stderr]     |
[INFO] [stderr] 229 |             let mut val = self.get_best_step(&h_open_sets, f);
[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/puzzle.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |                     let mut val = self.get_by_hash(&mut h_close_sets, prev.hash_prev);
[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/puzzle.rs:448:25
[INFO] [stderr]     |
[INFO] [stderr] 448 |                     let mut v: i8 = (((*j-1) / self.size_v) - (c as i8 / self.size_v)).abs();
[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/puzzle.rs:449:25
[INFO] [stderr]     |
[INFO] [stderr] 449 |                     let mut h: i8 = (((*j-1) % self.size_h) - (c as i8 % self.size_h)).abs();
[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/puzzle.rs:470:21
[INFO] [stderr]     |
[INFO] [stderr] 470 |                 let mut position1: i8;
[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/puzzle.rs:471:21
[INFO] [stderr]     |
[INFO] [stderr] 471 |                 let mut position2: i8;
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count_solutions` is never read
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut count_solutions:i32 = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Err(n) => {
[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/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         Err(n) => {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Err(n) => {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:146:32
[INFO] [stderr]     |
[INFO] [stderr] 146 | ...                   Ok(t) => {}
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:155:24
[INFO] [stderr]     |
[INFO] [stderr] 155 |                     Ok(t) => {println!();
[INFO] [stderr]     |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut size_h:i8;
[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/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut size_v:i8;
[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/main.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |                         let mut result:i8 = match set {
[INFO] [stderr]     |                             ----^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/puzzle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/puzzle.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:195:44
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k2`
[INFO] [stderr]    --> src/puzzle.rs:195:53
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                                     ^^ help: if this is intentional, prefix it with an underscore: `_k2`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:194:13
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:196:19
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let (key, value) = best.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/puzzle.rs:193:61
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn get_best_step(& self, map: & HashMap<Vec<i8>, Step>, f: u32) -> Vec<i8> {
[INFO] [stderr]     |                                                             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:203:50
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let result = map.par_iter().find_first(|(k1, s1)| (s1.hash_current == hash));
[INFO] [stderr]     |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:204:19
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let (key, value) = result.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/puzzle.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let h:i8 = self.size_h;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/puzzle.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |         let v:i8 = self.size_v;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cost`
[INFO] [stderr]    --> src/puzzle.rs:218:14
[INFO] [stderr]     |
[INFO] [stderr] 218 |         let (cost, h) = self.cost(self.start.clone());
[INFO] [stderr]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/puzzle.rs:245:26
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     Some(result) => {continue},
[INFO] [stderr]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:286:17
[INFO] [stderr]     |
[INFO] [stderr] 286 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:335:17
[INFO] [stderr]     |
[INFO] [stderr] 335 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/puzzle.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let mut pos = pos_opt.unwrap() as i8;
[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/puzzle.rs:224:17
[INFO] [stderr]     |
[INFO] [stderr] 224 |             let mut now = SystemTime::now();
[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/puzzle.rs:229:17
[INFO] [stderr]     |
[INFO] [stderr] 229 |             let mut val = self.get_best_step(&h_open_sets, f);
[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/puzzle.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |                     let mut val = self.get_by_hash(&mut h_close_sets, prev.hash_prev);
[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/puzzle.rs:448:25
[INFO] [stderr]     |
[INFO] [stderr] 448 |                     let mut v: i8 = (((*j-1) / self.size_v) - (c as i8 / self.size_v)).abs();
[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/puzzle.rs:449:25
[INFO] [stderr]     |
[INFO] [stderr] 449 |                     let mut h: i8 = (((*j-1) % self.size_h) - (c as i8 % self.size_h)).abs();
[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/puzzle.rs:470:21
[INFO] [stderr]     |
[INFO] [stderr] 470 |                 let mut position1: i8;
[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/puzzle.rs:471:21
[INFO] [stderr]     |
[INFO] [stderr] 471 |                 let mut position2: i8;
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count_solutions` is never read
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut count_solutions:i32 = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Err(n) => {
[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/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         Err(n) => {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Err(n) => {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:146:32
[INFO] [stderr]     |
[INFO] [stderr] 146 | ...                   Ok(t) => {}
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:155:24
[INFO] [stderr]     |
[INFO] [stderr] 155 |                     Ok(t) => {println!();
[INFO] [stderr]     |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut size_h:i8;
[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/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut size_v:i8;
[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/main.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |                         let mut result:i8 = match set {
[INFO] [stderr]     |                             ----^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `"docker" "inspect" "9af0bf6a39da61c6c99e29113bd4212e74ed2ca9279bd44627a294a7c9b63ef1"`
[INFO] running `"docker" "rm" "-f" "9af0bf6a39da61c6c99e29113bd4212e74ed2ca9279bd44627a294a7c9b63ef1"`
[INFO] [stdout] 9af0bf6a39da61c6c99e29113bd4212e74ed2ca9279bd44627a294a7c9b63ef1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] cb30ad3ca8661f9dd7bf98d05fb7f0e2c9def514ef92d4f7d1686adebf49e6be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "cb30ad3ca8661f9dd7bf98d05fb7f0e2c9def514ef92d4f7d1686adebf49e6be"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/puzzle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/puzzle.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:195:44
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k2`
[INFO] [stderr]    --> src/puzzle.rs:195:53
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                                     ^^ help: if this is intentional, prefix it with an underscore: `_k2`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:194:13
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:196:19
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let (key, value) = best.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/puzzle.rs:193:61
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn get_best_step(& self, map: & HashMap<Vec<i8>, Step>, f: u32) -> Vec<i8> {
[INFO] [stderr]     |                                                             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:203:50
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let result = map.par_iter().find_first(|(k1, s1)| (s1.hash_current == hash));
[INFO] [stderr]     |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:204:19
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let (key, value) = result.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/puzzle.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let h:i8 = self.size_h;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/puzzle.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |         let v:i8 = self.size_v;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cost`
[INFO] [stderr]    --> src/puzzle.rs:218:14
[INFO] [stderr]     |
[INFO] [stderr] 218 |         let (cost, h) = self.cost(self.start.clone());
[INFO] [stderr]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/puzzle.rs:245:26
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     Some(result) => {continue},
[INFO] [stderr]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:286:17
[INFO] [stderr]     |
[INFO] [stderr] 286 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:335:17
[INFO] [stderr]     |
[INFO] [stderr] 335 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/puzzle.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let mut pos = pos_opt.unwrap() as i8;
[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/puzzle.rs:224:17
[INFO] [stderr]     |
[INFO] [stderr] 224 |             let mut now = SystemTime::now();
[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/puzzle.rs:229:17
[INFO] [stderr]     |
[INFO] [stderr] 229 |             let mut val = self.get_best_step(&h_open_sets, f);
[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/puzzle.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |                     let mut val = self.get_by_hash(&mut h_close_sets, prev.hash_prev);
[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/puzzle.rs:448:25
[INFO] [stderr]     |
[INFO] [stderr] 448 |                     let mut v: i8 = (((*j-1) / self.size_v) - (c as i8 / self.size_v)).abs();
[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/puzzle.rs:449:25
[INFO] [stderr]     |
[INFO] [stderr] 449 |                     let mut h: i8 = (((*j-1) % self.size_h) - (c as i8 % self.size_h)).abs();
[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/puzzle.rs:470:21
[INFO] [stderr]     |
[INFO] [stderr] 470 |                 let mut position1: i8;
[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/puzzle.rs:471:21
[INFO] [stderr]     |
[INFO] [stderr] 471 |                 let mut position2: i8;
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time`
[INFO] [stderr]  --> src/puzzle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/puzzle.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:195:44
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                            ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k2`
[INFO] [stderr]    --> src/puzzle.rs:195:53
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let best = map.par_iter().min_by(|(k1, s1),(k2,s2)| (s1.set.f.cmp(&s2.set.f)));
[INFO] [stderr]     |                                                     ^^ help: if this is intentional, prefix it with an underscore: `_k2`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:194:13
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:196:19
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let (key, value) = best.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/puzzle.rs:193:61
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn get_best_step(& self, map: & HashMap<Vec<i8>, Step>, f: u32) -> Vec<i8> {
[INFO] [stderr]     |                                                             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k1`
[INFO] [stderr]    --> src/puzzle.rs:203:50
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let result = map.par_iter().find_first(|(k1, s1)| (s1.hash_current == hash));
[INFO] [stderr]     |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_k1`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]    --> src/puzzle.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         let mut val = vec![];
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/puzzle.rs:204:19
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let (key, value) = result.unwrap();
[INFO] [stderr]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/puzzle.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let h:i8 = self.size_h;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/puzzle.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |         let v:i8 = self.size_v;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cost`
[INFO] [stderr]    --> src/puzzle.rs:218:14
[INFO] [stderr]     |
[INFO] [stderr] 218 |         let (cost, h) = self.cost(self.start.clone());
[INFO] [stderr]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/puzzle.rs:245:26
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     Some(result) => {continue},
[INFO] [stderr]     |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:286:17
[INFO] [stderr]     |
[INFO] [stderr] 286 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tmp` is never read
[INFO] [stderr]    --> src/puzzle.rs:335:17
[INFO] [stderr]     |
[INFO] [stderr] 335 |             let mut tmp: Vec<i8> = vec![];
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/puzzle.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let mut pos = pos_opt.unwrap() as i8;
[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/puzzle.rs:224:17
[INFO] [stderr]     |
[INFO] [stderr] 224 |             let mut now = SystemTime::now();
[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/puzzle.rs:229:17
[INFO] [stderr]     |
[INFO] [stderr] 229 |             let mut val = self.get_best_step(&h_open_sets, f);
[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/puzzle.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |                     let mut val = self.get_by_hash(&mut h_close_sets, prev.hash_prev);
[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/puzzle.rs:448:25
[INFO] [stderr]     |
[INFO] [stderr] 448 |                     let mut v: i8 = (((*j-1) / self.size_v) - (c as i8 / self.size_v)).abs();
[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/puzzle.rs:449:25
[INFO] [stderr]     |
[INFO] [stderr] 449 |                     let mut h: i8 = (((*j-1) % self.size_h) - (c as i8 % self.size_h)).abs();
[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/puzzle.rs:470:21
[INFO] [stderr]     |
[INFO] [stderr] 470 |                 let mut position1: i8;
[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/puzzle.rs:471:21
[INFO] [stderr]     |
[INFO] [stderr] 471 |                 let mut position2: i8;
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count_solutions` is never read
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut count_solutions:i32 = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Err(n) => {
[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/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         Err(n) => {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Err(n) => {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:146:32
[INFO] [stderr]     |
[INFO] [stderr] 146 | ...                   Ok(t) => {}
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:155:24
[INFO] [stderr]     |
[INFO] [stderr] 155 |                     Ok(t) => {println!();
[INFO] [stderr]     |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut size_h:i8;
[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/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut size_v:i8;
[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/main.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |                         let mut result:i8 = match set {
[INFO] [stderr]     |                             ----^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count_solutions` is never read
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let mut count_solutions:i32 = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/main.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Err(n) => {
[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/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         Err(n) => {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Err(n) => {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:146:32
[INFO] [stderr]     |
[INFO] [stderr] 146 | ...                   Ok(t) => {}
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/main.rs:155:24
[INFO] [stderr]     |
[INFO] [stderr] 155 |                     Ok(t) => {println!();
[INFO] [stderr]     |                        ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut size_h:i8;
[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/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut size_v:i8;
[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/main.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |                         let mut result:i8 = match set {
[INFO] [stderr]     |                             ----^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/puzzle-d4c61cc7384cdcbd
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/puzzle-cb028442ea79a469
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-55eeea3886169372
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test it_cost_test ... ok
[INFO] [stdout] test it_new_puzzle ... ok
[INFO] [stdout] test it_search_all_sets_test ... ok
[INFO] [stdout] test it_get_states ... ok
[INFO] [stdout] test it_get_points ... ok
[INFO] [stdout] test it_set_puzzle ... ok
[INFO] [stdout] test it_search_sets_test ... ok
[INFO] [stdout] test it_generate_puzzle ... ok
[INFO] [stdout] test it_check_linear_conflict_test ... ok
[INFO] [stdout] test it_check_column_conflict_test ... ok
[INFO] [stdout] test it_search_solution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests puzzle
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "cb30ad3ca8661f9dd7bf98d05fb7f0e2c9def514ef92d4f7d1686adebf49e6be"`
[INFO] running `"docker" "rm" "-f" "cb30ad3ca8661f9dd7bf98d05fb7f0e2c9def514ef92d4f7d1686adebf49e6be"`
[INFO] [stdout] cb30ad3ca8661f9dd7bf98d05fb7f0e2c9def514ef92d4f7d1686adebf49e6be