[INFO] cloning repository https://github.com/basicss1/hw2_redo [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasicss1%2Fhw2_redo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 74760731fb74c6a135c4a3ef7f78cc2858fee05f [INFO] checking basicss1/hw2_redo against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasicss1%2Fhw2_redo" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/basicss1/hw2_redo on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/basicss1/hw2_redo already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ad69cdcdf27610353fc9beb75ab687b9f76925c168cdae6e68a34544f76deb06 [INFO] running `Command { std: "docker" "start" "-a" "ad69cdcdf27610353fc9beb75ab687b9f76925c168cdae6e68a34544f76deb06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ad69cdcdf27610353fc9beb75ab687b9f76925c168cdae6e68a34544f76deb06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad69cdcdf27610353fc9beb75ab687b9f76925c168cdae6e68a34544f76deb06", kill_on_drop: false }` [INFO] [stdout] ad69cdcdf27610353fc9beb75ab687b9f76925c168cdae6e68a34544f76deb06 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f71a026d95488ee25ea3599d1ebe56bf5eb0c44b3db04078257b83fad4f7b369 [INFO] running `Command { std: "docker" "start" "-a" "f71a026d95488ee25ea3599d1ebe56bf5eb0c44b3db04078257b83fad4f7b369", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling syn v0.15.35 [INFO] [stderr] Checking rustc-demangle v0.1.15 [INFO] [stderr] Checking custom_error v1.6.0 [INFO] [stderr] Compiling backtrace v0.3.30 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling quote v0.6.12 [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] [stdout] warning: unused import: `process` [INFO] [stdout] --> src/lib.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env, process}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `File` [INFO] [stdout] --> src/lib.rs:2:20 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::{self,File}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `process` [INFO] [stdout] --> src/lib.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env, process}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `File` [INFO] [stdout] --> src/lib.rs:2:20 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::{self,File}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:64:11 [INFO] [stdout] | [INFO] [stdout] 64 | if(!self.backward.contains(&word.to_string())){ [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 64 - if(!self.backward.contains(&word.to_string())){ [INFO] [stdout] 64 + if !self.backward.contains(&word.to_string()) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:64:11 [INFO] [stdout] | [INFO] [stdout] 64 | if(!self.backward.contains(&word.to_string())){ [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 64 - if(!self.backward.contains(&word.to_string())){ [INFO] [stdout] 64 + if !self.backward.contains(&word.to_string()) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | if (*found == 0){ [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 187 - if (*found == 0){ [INFO] [stdout] 187 + if *found == 0 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:187:12 [INFO] [stdout] | [INFO] [stdout] 187 | if (*found == 0){ [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 187 - if (*found == 0){ [INFO] [stdout] 187 + if *found == 0 { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `core::str::::trim_left`: superseded by `trim_start` [INFO] [stdout] --> src/lib.rs:128:14 [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_left().trim_right(); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] help: replace the use of the deprecated method [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_start().trim_right(); [INFO] [stdout] | ~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `core::str::::trim_right`: superseded by `trim_end` [INFO] [stdout] --> src/lib.rs:128:26 [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_left().trim_right(); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: replace the use of the deprecated method [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_left().trim_end(); [INFO] [stdout] | ~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `prelude` [INFO] [stdout] --> src/lib.rs:5:28 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{self, Write, prelude::*}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lib.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 29 | for i in 0..length{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `core::str::::trim_left`: superseded by `trim_start` [INFO] [stdout] --> src/lib.rs:128:14 [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_left().trim_right(); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] help: replace the use of the deprecated method [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_start().trim_right(); [INFO] [stdout] | ~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `core::str::::trim_right`: superseded by `trim_end` [INFO] [stdout] --> src/lib.rs:128:26 [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_left().trim_right(); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: replace the use of the deprecated method [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_left().trim_end(); [INFO] [stdout] | ~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:93:92 [INFO] [stdout] | [INFO] [stdout] 93 | pub fn helper(&self, answer: &mut Vec, begin_values: usize, end_values: usize, mut found: &mut i32){ [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:121:20 [INFO] [stdout] | [INFO] [stdout] 121 | pub fn read_string(mut label_graph: &mut LabelGraph) -> io::Result<()>{ [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/lib.rs:164:13 [INFO] [stdout] | [INFO] [stdout] 164 | let g = match io::stdin().read_line(&mut contents) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:182:13 [INFO] [stdout] | [INFO] [stdout] 182 | let mut found: &mut i32 = &mut 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `prelude` [INFO] [stdout] --> src/lib.rs:5:28 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{self, Write, prelude::*}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lib.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 29 | for i in 0..length{ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:184:13 [INFO] [stdout] | [INFO] [stdout] 184 | let mut ans: &mut Vec = &mut Vec::new(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:93:92 [INFO] [stdout] | [INFO] [stdout] 93 | pub fn helper(&self, answer: &mut Vec, begin_values: usize, end_values: usize, mut found: &mut i32){ [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:121:20 [INFO] [stdout] | [INFO] [stdout] 121 | pub fn read_string(mut label_graph: &mut LabelGraph) -> io::Result<()>{ [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:255:13 [INFO] [stdout] | [INFO] [stdout] 255 | let mut ans: &mut Vec = &mut Vec::new(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:256:13 [INFO] [stdout] | [INFO] [stdout] 256 | let mut found: &mut i32 = &mut 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:262:13 [INFO] [stdout] | [INFO] [stdout] 262 | let mut ans1: &mut Vec = &mut Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:263:13 [INFO] [stdout] | [INFO] [stdout] 263 | let mut found1: &mut i32 = &mut 0; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:273:13 [INFO] [stdout] | [INFO] [stdout] 273 | let mut ans2: &mut Vec = &mut Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:274:13 [INFO] [stdout] | [INFO] [stdout] 274 | let mut found2: &mut i32 = &mut 0; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intgraph_set_1_for_neighbor` is never used [INFO] [stdout] --> src/lib.rs:205:8 [INFO] [stdout] | [INFO] [stdout] 205 | fn intgraph_set_1_for_neighbor(){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `label_graph_helper` is never used [INFO] [stdout] --> src/lib.rs:240:8 [INFO] [stdout] | [INFO] [stdout] 240 | fn label_graph_helper(){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/lib.rs:164:13 [INFO] [stdout] | [INFO] [stdout] 164 | let g = match io::stdin().read_line(&mut contents) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `core::str::::trim_right` that must be used [INFO] [stdout] --> src/lib.rs:128:5 [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_left().trim_right(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the trimmed string as a new slice, without modifying the original [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 128 | let _ = contents.trim_left().trim_right(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:139:32 [INFO] [stdout] | [INFO] [stdout] 139 | let new_word = a[0].clone(); [INFO] [stdout] | ^^^^^^^^ unnecessary method call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[deny(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:143:42 [INFO] [stdout] | [INFO] [stdout] 143 | let new_word_ = word_.clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:182:13 [INFO] [stdout] | [INFO] [stdout] 182 | let mut found: &mut i32 = &mut 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:184:13 [INFO] [stdout] | [INFO] [stdout] 184 | let mut ans: &mut Vec = &mut Vec::new(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:255:13 [INFO] [stdout] | [INFO] [stdout] 255 | let mut ans: &mut Vec = &mut Vec::new(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:256:13 [INFO] [stdout] | [INFO] [stdout] 256 | let mut found: &mut i32 = &mut 0; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:262:13 [INFO] [stdout] | [INFO] [stdout] 262 | let mut ans1: &mut Vec = &mut Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:263:13 [INFO] [stdout] | [INFO] [stdout] 263 | let mut found1: &mut i32 = &mut 0; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:273:13 [INFO] [stdout] | [INFO] [stdout] 273 | let mut ans2: &mut Vec = &mut Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:274:13 [INFO] [stdout] | [INFO] [stdout] 274 | let mut found2: &mut i32 = &mut 0; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `intgraph_set_1_for_neighbor` is never used [INFO] [stdout] --> src/lib.rs:205:8 [INFO] [stdout] | [INFO] [stdout] 205 | fn intgraph_set_1_for_neighbor(){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `label_graph_helper` is never used [INFO] [stdout] --> src/lib.rs:240:8 [INFO] [stdout] | [INFO] [stdout] 240 | fn label_graph_helper(){ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `graph` (lib test) due to 2 previous errors; 23 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused return value of `core::str::::trim_right` that must be used [INFO] [stdout] --> src/lib.rs:128:5 [INFO] [stdout] | [INFO] [stdout] 128 | contents.trim_left().trim_right(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the trimmed string as a new slice, without modifying the original [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 128 | let _ = contents.trim_left().trim_right(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:139:32 [INFO] [stdout] | [INFO] [stdout] 139 | let new_word = a[0].clone(); [INFO] [stdout] | ^^^^^^^^ unnecessary method call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[deny(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:143:42 [INFO] [stdout] | [INFO] [stdout] 143 | let new_word_ = word_.clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `graph` (lib) due to 2 previous errors; 23 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f71a026d95488ee25ea3599d1ebe56bf5eb0c44b3db04078257b83fad4f7b369", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f71a026d95488ee25ea3599d1ebe56bf5eb0c44b3db04078257b83fad4f7b369", kill_on_drop: false }` [INFO] [stdout] f71a026d95488ee25ea3599d1ebe56bf5eb0c44b3db04078257b83fad4f7b369