[INFO] cloning repository https://github.com/basicss1/hw2_redo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/basicss1/hw2_redo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasicss1%2Fhw2_redo"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasicss1%2Fhw2_redo'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 74760731fb74c6a135c4a3ef7f78cc2858fee05f
[INFO] checking basicss1/hw2_redo against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasicss1%2Fhw2_redo" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/basicss1/hw2_redo on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/basicss1/hw2_redo
[INFO] finished tweaking git repo https://github.com/basicss1/hw2_redo
[INFO] tweaked toml for git repo https://github.com/basicss1/hw2_redo written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/basicss1/hw2_redo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2cdcf26198a7286561bc01ab04963bbb24c985d152a10f3a357f482652c4dfb2
[INFO] running `"docker" "start" "-a" "2cdcf26198a7286561bc01ab04963bbb24c985d152a10f3a357f482652c4dfb2"`
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]     Checking custom_error v1.6.0
[INFO] [stderr]     Checking libc v0.2.58
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking backtrace v0.3.30
[INFO] [stderr]    Compiling snafu-derive v0.3.1
[INFO] [stderr]     Checking snafu v0.3.1
[INFO] [stderr]     Checking graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `process`
[INFO] [stderr]  --> src/lib.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{env, process};
[INFO] [stderr]   |                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/lib.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::{self,File};
[INFO] [stderr]   |                    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/lib.rs:64:11
[INFO] [stderr]    |
[INFO] [stderr] 64 |         if(!self.backward.contains(&word.to_string())){
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/lib.rs:187:12
[INFO] [stderr]     |
[INFO] [stderr] 187 |         if (*found == 0){
[INFO] [stderr]     |            ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/lib.rs:128:14
[INFO] [stderr]     |
[INFO] [stderr] 128 |     contents.trim_left().trim_right();
[INFO] [stderr]     |              ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/lib.rs:128:26
[INFO] [stderr]     |
[INFO] [stderr] 128 |     contents.trim_left().trim_right();
[INFO] [stderr]     |                          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `process`
[INFO] [stderr]  --> src/lib.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{env, process};
[INFO] [stderr]   |                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/lib.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::{self,File};
[INFO] [stderr]   |                    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/lib.rs:64:11
[INFO] [stderr]    |
[INFO] [stderr] 64 |         if(!self.backward.contains(&word.to_string())){
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/lib.rs:187:12
[INFO] [stderr]     |
[INFO] [stderr] 187 |         if (*found == 0){
[INFO] [stderr]     |            ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `prelude`
[INFO] [stderr]  --> src/lib.rs:5:28
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Write, prelude::*};
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]    --> src/lib.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let g = match io::stdin().read_line(&mut contents) {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_g`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         for i in 0..length{
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:93:92
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn helper(&self, answer: &mut Vec<String>, begin_values: usize, end_values: usize, mut found: &mut i32){
[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/lib.rs:121:20
[INFO] [stderr]     |
[INFO] [stderr] 121 | pub fn read_string(mut label_graph: &mut LabelGraph) -> io::Result<()>{
[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/lib.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let mut found: &mut i32 = &mut 0;
[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/lib.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut ans: &mut Vec<String> = &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/lib.rs:255:13
[INFO] [stderr]     |
[INFO] [stderr] 255 |         let mut ans: &mut Vec<String> = &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/lib.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |         let mut found: &mut i32 = &mut 0;
[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/lib.rs:262:13
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let mut ans1: &mut Vec<String> = &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/lib.rs:263:13
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let mut found1: &mut i32 = &mut 0;
[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/lib.rs:273:13
[INFO] [stderr]     |
[INFO] [stderr] 273 |         let mut ans2: &mut Vec<String> = &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/lib.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |         let mut found2: &mut i32 = &mut 0;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `intgraph_set_1_for_neighbor`
[INFO] [stderr]    --> src/lib.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn intgraph_set_1_for_neighbor(){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `label_graph_helper`
[INFO] [stderr]    --> src/lib.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn label_graph_helper(){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/lib.rs:128:14
[INFO] [stderr]     |
[INFO] [stderr] 128 |     contents.trim_left().trim_right();
[INFO] [stderr]     |              ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/lib.rs:128:26
[INFO] [stderr]     |
[INFO] [stderr] 128 |     contents.trim_left().trim_right();
[INFO] [stderr]     |                          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `prelude`
[INFO] [stderr]  --> src/lib.rs:5:28
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Write, prelude::*};
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]    --> src/lib.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let g = match io::stdin().read_line(&mut contents) {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_g`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         for i in 0..length{
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:93:92
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn helper(&self, answer: &mut Vec<String>, begin_values: usize, end_values: usize, mut found: &mut i32){
[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/lib.rs:121:20
[INFO] [stderr]     |
[INFO] [stderr] 121 | pub fn read_string(mut label_graph: &mut LabelGraph) -> io::Result<()>{
[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/lib.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let mut found: &mut i32 = &mut 0;
[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/lib.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut ans: &mut Vec<String> = &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/lib.rs:255:13
[INFO] [stderr]     |
[INFO] [stderr] 255 |         let mut ans: &mut Vec<String> = &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/lib.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |         let mut found: &mut i32 = &mut 0;
[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/lib.rs:262:13
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let mut ans1: &mut Vec<String> = &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/lib.rs:263:13
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let mut found1: &mut i32 = &mut 0;
[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/lib.rs:273:13
[INFO] [stderr]     |
[INFO] [stderr] 273 |         let mut ans2: &mut Vec<String> = &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/lib.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |         let mut found2: &mut i32 = &mut 0;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `intgraph_set_1_for_neighbor`
[INFO] [stderr]    --> src/lib.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn intgraph_set_1_for_neighbor(){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `label_graph_helper`
[INFO] [stderr]    --> src/lib.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn label_graph_helper(){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `process`
[INFO] [stderr]  --> src/lib.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{env, process};
[INFO] [stderr]   |                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/lib.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::{self,File};
[INFO] [stderr]   |                    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/lib.rs:64:11
[INFO] [stderr]    |
[INFO] [stderr] 64 |         if(!self.backward.contains(&word.to_string())){
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/lib.rs:187:12
[INFO] [stderr]     |
[INFO] [stderr] 187 |         if (*found == 0){
[INFO] [stderr]     |            ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/lib.rs:128:14
[INFO] [stderr]     |
[INFO] [stderr] 128 |     contents.trim_left().trim_right();
[INFO] [stderr]     |              ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/lib.rs:128:26
[INFO] [stderr]     |
[INFO] [stderr] 128 |     contents.trim_left().trim_right();
[INFO] [stderr]     |                          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `prelude`
[INFO] [stderr]  --> src/lib.rs:5:28
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Write, prelude::*};
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let a = lib::read_string(label_graph)?;
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let g = lib::read_input(label_graph)?;
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]    --> src/lib.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let g = match io::stdin().read_line(&mut contents) {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         for i in 0..length{
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut label_graph:&mut lib::LabelGraph = &mut lib::LabelGraph::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/lib.rs:93:92
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn helper(&self, answer: &mut Vec<String>, begin_values: usize, end_values: usize, mut found: &mut i32){
[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/lib.rs:121:20
[INFO] [stderr]     |
[INFO] [stderr] 121 | pub fn read_string(mut label_graph: &mut LabelGraph) -> io::Result<()>{
[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/lib.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let mut found: &mut i32 = &mut 0;
[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/lib.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut ans: &mut Vec<String> = &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/lib.rs:255:13
[INFO] [stderr]     |
[INFO] [stderr] 255 |         let mut ans: &mut Vec<String> = &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/lib.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |         let mut found: &mut i32 = &mut 0;
[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/lib.rs:262:13
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let mut ans1: &mut Vec<String> = &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/lib.rs:263:13
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let mut found1: &mut i32 = &mut 0;
[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/lib.rs:273:13
[INFO] [stderr]     |
[INFO] [stderr] 273 |         let mut ans2: &mut Vec<String> = &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/lib.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |         let mut found2: &mut i32 = &mut 0;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_len`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn get_len(&self) -> usize{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_contents`
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn get_contents(&self) -> &Vec<Vec<usize>>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_graph`
[INFO] [stderr]   --> src/lib.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn set_graph(&mut self, intgraph: IntGraph, labelmap: LabelMap){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `intgraph_set_1_for_neighbor`
[INFO] [stderr]    --> src/lib.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn intgraph_set_1_for_neighbor(){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `label_graph_helper`
[INFO] [stderr]    --> src/lib.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn label_graph_helper(){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `process`
[INFO] [stderr]  --> src/lib.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{env, process};
[INFO] [stderr]   |                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/lib.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::{self,File};
[INFO] [stderr]   |                    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/lib.rs:64:11
[INFO] [stderr]    |
[INFO] [stderr] 64 |         if(!self.backward.contains(&word.to_string())){
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/lib.rs:187:12
[INFO] [stderr]     |
[INFO] [stderr] 187 |         if (*found == 0){
[INFO] [stderr]     |            ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/lib.rs:128:14
[INFO] [stderr]     |
[INFO] [stderr] 128 |     contents.trim_left().trim_right();
[INFO] [stderr]     |              ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/lib.rs:128:26
[INFO] [stderr]     |
[INFO] [stderr] 128 |     contents.trim_left().trim_right();
[INFO] [stderr]     |                          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `prelude`
[INFO] [stderr]  --> src/lib.rs:5:28
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Write, prelude::*};
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let a = lib::read_string(label_graph)?;
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let g = lib::read_input(label_graph)?;
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]    --> src/lib.rs:164:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let g = match io::stdin().read_line(&mut contents) {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         for i in 0..length{
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut label_graph:&mut lib::LabelGraph = &mut lib::LabelGraph::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/lib.rs:93:92
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn helper(&self, answer: &mut Vec<String>, begin_values: usize, end_values: usize, mut found: &mut i32){
[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/lib.rs:121:20
[INFO] [stderr]     |
[INFO] [stderr] 121 | pub fn read_string(mut label_graph: &mut LabelGraph) -> io::Result<()>{
[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/lib.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let mut found: &mut i32 = &mut 0;
[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/lib.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut ans: &mut Vec<String> = &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/lib.rs:255:13
[INFO] [stderr]     |
[INFO] [stderr] 255 |         let mut ans: &mut Vec<String> = &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/lib.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |         let mut found: &mut i32 = &mut 0;
[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/lib.rs:262:13
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let mut ans1: &mut Vec<String> = &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/lib.rs:263:13
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let mut found1: &mut i32 = &mut 0;
[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/lib.rs:273:13
[INFO] [stderr]     |
[INFO] [stderr] 273 |         let mut ans2: &mut Vec<String> = &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/lib.rs:274:13
[INFO] [stderr]     |
[INFO] [stderr] 274 |         let mut found2: &mut i32 = &mut 0;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_len`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn get_len(&self) -> usize{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_contents`
[INFO] [stderr]   --> src/lib.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn get_contents(&self) -> &Vec<Vec<usize>>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `intgraph_set_1_for_neighbor`
[INFO] [stderr]    --> src/lib.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn intgraph_set_1_for_neighbor(){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `label_graph_helper`
[INFO] [stderr]    --> src/lib.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn label_graph_helper(){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.58s
[INFO] running `"docker" "inspect" "2cdcf26198a7286561bc01ab04963bbb24c985d152a10f3a357f482652c4dfb2"`
[INFO] running `"docker" "rm" "-f" "2cdcf26198a7286561bc01ab04963bbb24c985d152a10f3a357f482652c4dfb2"`
[INFO] [stdout] 2cdcf26198a7286561bc01ab04963bbb24c985d152a10f3a357f482652c4dfb2