[INFO] cloning repository https://github.com/pengfeixx/catlog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pengfeixx/catlog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpengfeixx%2Fcatlog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpengfeixx%2Fcatlog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07838e92583dade10e72ba91ef03707b8cce91eb
[INFO] checking pengfeixx/catlog against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpengfeixx%2Fcatlog" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pengfeixx/catlog on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pengfeixx/catlog
[INFO] finished tweaking git repo https://github.com/pengfeixx/catlog
[INFO] tweaked toml for git repo https://github.com/pengfeixx/catlog written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pengfeixx/catlog 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" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding cfg-if v0.1.10
[INFO] [stderr]       Adding fsevent v0.4.0
[INFO] [stderr]  Downgrading fsevent-sys v4.1.0 -> v2.0.1
[INFO] [stderr]       Adding fuchsia-zircon v0.3.3
[INFO] [stderr]       Adding fuchsia-zircon-sys v0.3.3
[INFO] [stderr]  Downgrading inotify v0.9.6 -> v0.7.1
[INFO] [stderr]       Adding iovec v0.1.4
[INFO] [stderr]       Adding kernel32-sys v0.2.2
[INFO] [stderr]       Adding lazycell v1.3.0
[INFO] [stderr]  Downgrading mio v0.8.8 -> v0.6.23
[INFO] [stderr]       Adding mio-extras v2.0.6
[INFO] [stderr]       Adding miow v0.2.2
[INFO] [stderr]       Adding net2 v0.2.39
[INFO] [stderr]  Downgrading notify v6.1.0 -> v4.0.18 (available: v8.0.0)
[INFO] [stderr]       Adding slab v0.4.9
[INFO] [stderr]       Adding winapi v0.2.8
[INFO] [stderr]       Adding winapi-build v0.1.1
[INFO] [stderr]       Adding ws2_32-sys v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66eeba15f3ffb141e63bec51c628946567b118e0309d5b302f1a09bfc2fd4272
[INFO] running `Command { std: "docker" "start" "-a" "66eeba15f3ffb141e63bec51c628946567b118e0309d5b302f1a09bfc2fd4272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66eeba15f3ffb141e63bec51c628946567b118e0309d5b302f1a09bfc2fd4272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66eeba15f3ffb141e63bec51c628946567b118e0309d5b302f1a09bfc2fd4272", kill_on_drop: false }`
[INFO] [stdout] 66eeba15f3ffb141e63bec51c628946567b118e0309d5b302f1a09bfc2fd4272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13417184601e5e31f2037fe16c7691f6ff4e162b94903433aedc4ccbd6ec6d04
[INFO] running `Command { std: "docker" "start" "-a" "13417184601e5e31f2037fe16c7691f6ff4e162b94903433aedc4ccbd6ec6d04", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.22
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.18
[INFO] [stderr]     Checking catlog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stdout`
[INFO] [stdout]  --> src/main.rs:7:46
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, stdin, stdout, Write, Stdout};
[INFO] [stdout]   |                                              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Output`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::process::Output;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App` and `Arg`
[INFO] [stdout]   --> src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use clap::{Arg, App};
[INFO] [stdout]    |            ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:80:32
[INFO] [stdout]    |
[INFO] [stdout] 80 | ...                   if (current_lines.len() > size) {
[INFO] [stdout]    |                          ^                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 80 -                             if (current_lines.len() > size) {
[INFO] [stdout] 80 +                             if current_lines.len() > size {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stdout`
[INFO] [stdout]  --> src/main.rs:7:46
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, stdin, stdout, Write, Stdout};
[INFO] [stdout]   |                                              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Output`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::process::Output;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App` and `Arg`
[INFO] [stdout]   --> src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use clap::{Arg, App};
[INFO] [stdout]    |            ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:80:32
[INFO] [stdout]    |
[INFO] [stdout] 80 | ...                   if (current_lines.len() > size) {
[INFO] [stdout]    |                          ^                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 80 -                             if (current_lines.len() > size) {
[INFO] [stdout] 80 +                             if current_lines.len() > size {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let width = term_w as usize;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> src/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let handle = thread::spawn(move || {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `out_type` is never read
[INFO] [stdout]    --> src/main.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut out_type: OutType = OutType::Normal;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let width = term_w as usize;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> src/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let handle = thread::spawn(move || {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `term_w`
[INFO] [stdout]    --> src/main.rs:161:18
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let (term_h, term_w) = term.size();
[INFO] [stdout]     |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_term_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `out_type` is never read
[INFO] [stdout]    --> src/main.rs:170:17
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let mut out_type: OutType = OutType::Normal;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `out_type` is never read
[INFO] [stdout]    --> src/main.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut out_type: OutType = OutType::Normal;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdout`
[INFO] [stdout]    --> src/main.rs:182:13
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let mut stdout = stdout().into_raw_mode().unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `term_w`
[INFO] [stdout]    --> src/main.rs:183:18
[INFO] [stdout]     |
[INFO] [stdout] 183 |     let (term_h, term_w) = term.size();
[INFO] [stdout]     |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_term_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let mut stdout = stdout().into_raw_mode().unwrap();
[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: unused variable: `term_w`
[INFO] [stdout]    --> src/main.rs:212:22
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let (term_h, term_w) = term.size();
[INFO] [stdout]     |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_term_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:227:18
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn find_previous(s: &&str, current_index: &mut usize, lines: &mut Vec<&str>) {
[INFO] [stdout]     |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_index`
[INFO] [stdout]    --> src/main.rs:227:28
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn find_previous(s: &&str, current_index: &mut usize, lines: &mut Vec<&str>) {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/main.rs:227:55
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn find_previous(s: &&str, current_index: &mut usize, lines: &mut Vec<&str>) {
[INFO] [stdout]     |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines` is never used
[INFO] [stdout]    --> src/main.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_previous` is never used
[INFO] [stdout]    --> src/main.rs:227:4
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn find_previous(s: &&str, current_index: &mut usize, lines: &mut Vec<&str>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `term_w`
[INFO] [stdout]    --> src/main.rs:161:18
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let (term_h, term_w) = term.size();
[INFO] [stdout]     |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_term_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `out_type` is never read
[INFO] [stdout]    --> src/main.rs:170:17
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let mut out_type: OutType = OutType::Normal;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdout`
[INFO] [stdout]    --> src/main.rs:182:13
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let mut stdout = stdout().into_raw_mode().unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `term_w`
[INFO] [stdout]    --> src/main.rs:183:18
[INFO] [stdout]     |
[INFO] [stdout] 183 |     let (term_h, term_w) = term.size();
[INFO] [stdout]     |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_term_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let mut stdout = stdout().into_raw_mode().unwrap();
[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: unused variable: `term_w`
[INFO] [stdout]    --> src/main.rs:212:22
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let (term_h, term_w) = term.size();
[INFO] [stdout]     |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_term_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:227:18
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn find_previous(s: &&str, current_index: &mut usize, lines: &mut Vec<&str>) {
[INFO] [stdout]     |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_index`
[INFO] [stdout]    --> src/main.rs:227:28
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn find_previous(s: &&str, current_index: &mut usize, lines: &mut Vec<&str>) {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/main.rs:227:55
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn find_previous(s: &&str, current_index: &mut usize, lines: &mut Vec<&str>) {
[INFO] [stdout]     |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines` is never used
[INFO] [stdout]    --> src/main.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_previous` is never used
[INFO] [stdout]    --> src/main.rs:227:4
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn find_previous(s: &&str, current_index: &mut usize, lines: &mut Vec<&str>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.37s
[INFO] running `Command { std: "docker" "inspect" "13417184601e5e31f2037fe16c7691f6ff4e162b94903433aedc4ccbd6ec6d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13417184601e5e31f2037fe16c7691f6ff4e162b94903433aedc4ccbd6ec6d04", kill_on_drop: false }`
[INFO] [stdout] 13417184601e5e31f2037fe16c7691f6ff4e162b94903433aedc4ccbd6ec6d04
