[INFO] cloning repository https://github.com/ergor/magnetar-client
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ergor/magnetar-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fergor%2Fmagnetar-client"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fergor%2Fmagnetar-client'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 37203fef039a9ed1d2417735450fc931a79b8cf8
[INFO] checking ergor/magnetar-client against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fergor%2Fmagnetar-client" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ergor/magnetar-client on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ergor/magnetar-client
[INFO] finished tweaking git repo https://github.com/ergor/magnetar-client
[INFO] tweaked toml for git repo https://github.com/ergor/magnetar-client written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ergor/magnetar-client already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 9f45a1d90f8fcb107991450db12781e11eeab64eb4a093ff493a9719be94ef26
[INFO] running `"docker" "start" "-a" "9f45a1d90f8fcb107991450db12781e11eeab64eb4a093ff493a9719be94ef26"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.51
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking indextree v4.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rusqlite v0.22.0
[INFO] [stderr]     Checking magnetar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: hidden lifetime parameters in types are deprecated
[INFO] [stderr]   --> src/comparator/compare.rs:30:36
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut tree: indextree::Arena<Comparison> = indextree::Arena::new();
[INFO] [stderr]    |                                    ^^^^^^^^^^- help: indicate the anonymous lifetime: `<'_>`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/main.rs:1:40
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![warn(missing_debug_implementations, rust_2018_idioms, missing_docs)]
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(elided_lifetimes_in_paths)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::comparator::comparison`
[INFO] [stderr]  --> src/comparator/compare.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::comparator::comparison;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/comparator/compare.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::{HashMap, BTreeMap};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/db_models/fs_node.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `conn`
[INFO] [stderr]   --> src/error.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let (conn, error) = e;
[INFO] [stderr]    |              ^^^^ help: if this is intentional, prefix it with an underscore: `_conn`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/indexer/index_once.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Err(e) => {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `force`
[INFO] [stderr]  --> src/indexer/index_once.rs:3:60
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn start(db_path: &str, directories: clap::Values<'_>, force: bool) -> crate::Result<()> {
[INFO] [stderr]   |                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_force`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output_dir`
[INFO] [stderr]   --> src/comparator/mod.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let output_dir = args.value_of("directory").unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_dir`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `generated`
[INFO] [stderr]   --> src/comparator/compare.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let generated = html.replace("${tree-nodes}", "");
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generated`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tree`
[INFO] [stderr]   --> src/comparator/compare.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut tree: indextree::Arena<Comparison> = indextree::Arena::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parents_a`
[INFO] [stderr]   --> src/comparator/compare.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut parents_a: BTreeMap<String, Vec<&FsNode>> = BTreeMap::new();
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parents_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parents_b`
[INFO] [stderr]   --> src/comparator/compare.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut parents_b: BTreeMap<String, Vec<&FsNode>> = BTreeMap::new();
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parents_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/comparator/compare.rs:25:16
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn compare(a: Vec<FsNode>, b: Vec<FsNode>) {
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/comparator/compare.rs:25:32
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn compare(a: Vec<FsNode>, b: Vec<FsNode>) {
[INFO] [stderr]    |                                ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/db_models/fs_node.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         let c = row.column_count();
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/comparator/compare.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut tree: indextree::Arena<Comparison> = indextree::Arena::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/comparator/compare.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut parents_a: BTreeMap<String, Vec<&FsNode>> = BTreeMap::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/comparator/compare.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut parents_b: BTreeMap<String, Vec<&FsNode>> = BTreeMap::new();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: hidden lifetime parameters in types are deprecated
[INFO] [stderr]   --> src/comparator/compare.rs:30:36
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut tree: indextree::Arena<Comparison> = indextree::Arena::new();
[INFO] [stderr]    |                                    ^^^^^^^^^^- help: indicate the anonymous lifetime: `<'_>`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/main.rs:1:40
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![warn(missing_debug_implementations, rust_2018_idioms, missing_docs)]
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(elided_lifetimes_in_paths)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::comparator::comparison`
[INFO] [stderr]  --> src/comparator/compare.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::comparator::comparison;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/comparator/compare.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::{HashMap, BTreeMap};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/db_models/fs_node.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `LI_FILE`
[INFO] [stderr]   --> src/comparator/compare.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | / const LI_FILE: &str = r#"<li>
[INFO] [stderr] 7  | |                              <table>
[INFO] [stderr] 8  | |                                  <tr class="${class}">
[INFO] [stderr] 9  | |                                      <td>${file-info-a}</td>
[INFO] [stderr] ...  |
[INFO] [stderr] 12 | |                              </table>
[INFO] [stderr] 13 | |                          </li>"#;
[INFO] [stderr]    | |_________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `LI_DIR`
[INFO] [stderr]   --> src/comparator/compare.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / const LI_DIR: &str = r#"<li class="collapse">
[INFO] [stderr] 16 | |                             <input type="checkbox" id="m${id}"/>
[INFO] [stderr] 17 | |                             <label for="m${id}">
[INFO] [stderr] 18 | |                                 ${directory-info}
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |                             </ul>
[INFO] [stderr] 23 | |                         </li>"#;
[INFO] [stderr]    | |________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `file`
[INFO] [stderr]   --> src/comparator/compare.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn file(fs_node: FsNode) -> String {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dir`
[INFO] [stderr]   --> src/comparator/compare.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn dir(fs_node: FsNode, children: &[FsNode]) -> String {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]  --> src/comparator/comparison.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     a: Option<&'a FsNode>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]  --> src/comparator/comparison.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     b: Option<&'a FsNode>
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ChangeType`
[INFO] [stderr]  --> src/comparator/comparison.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum ChangeType {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `css_class`
[INFO] [stderr]   --> src/comparator/comparison.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn css_class(change_type: ChangeType) -> &'static str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/comparator/comparison.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new() -> Comparison<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `change_type`
[INFO] [stderr]   --> src/comparator/comparison.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn change_type(&self) -> ChangeType {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `a`
[INFO] [stderr]   --> src/comparator/comparison.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn a(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_a`
[INFO] [stderr]   --> src/comparator/comparison.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn set_a(&mut self, fs_node: &'a FsNode) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `b`
[INFO] [stderr]   --> src/comparator/comparison.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn b(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_b`
[INFO] [stderr]   --> src/comparator/comparison.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn set_b(&mut self, fs_node: &'a FsNode) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for the crate
[INFO] [stderr]    --> src/main.rs:1:1
[INFO] [stderr]     |
[INFO] [stderr] 1   | / #![warn(missing_debug_implementations, rust_2018_idioms, missing_docs)]
[INFO] [stderr] 2   | |
[INFO] [stderr] 3   | | mod consts;
[INFO] [stderr] 4   | | mod create_tables;
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |     return Ok(());
[INFO] [stderr] 100 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/main.rs:1:58
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![warn(missing_debug_implementations, rust_2018_idioms, missing_docs)]
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: missing documentation for a type alias
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub type Result<T, E = crate::error::Error> = result::Result<T, E>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 34 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `conn`
[INFO] [stderr]   --> src/error.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let (conn, error) = e;
[INFO] [stderr]    |              ^^^^ help: if this is intentional, prefix it with an underscore: `_conn`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/indexer/index_once.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Err(e) => {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `force`
[INFO] [stderr]  --> src/indexer/index_once.rs:3:60
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn start(db_path: &str, directories: clap::Values<'_>, force: bool) -> crate::Result<()> {
[INFO] [stderr]   |                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_force`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output_dir`
[INFO] [stderr]   --> src/comparator/mod.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let output_dir = args.value_of("directory").unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_dir`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `generated`
[INFO] [stderr]   --> src/comparator/compare.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let generated = html.replace("${tree-nodes}", "");
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generated`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tree`
[INFO] [stderr]   --> src/comparator/compare.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut tree: indextree::Arena<Comparison> = indextree::Arena::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parents_a`
[INFO] [stderr]   --> src/comparator/compare.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut parents_a: BTreeMap<String, Vec<&FsNode>> = BTreeMap::new();
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parents_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parents_b`
[INFO] [stderr]   --> src/comparator/compare.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut parents_b: BTreeMap<String, Vec<&FsNode>> = BTreeMap::new();
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parents_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/comparator/compare.rs:25:16
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn compare(a: Vec<FsNode>, b: Vec<FsNode>) {
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/comparator/compare.rs:25:32
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn compare(a: Vec<FsNode>, b: Vec<FsNode>) {
[INFO] [stderr]    |                                ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/db_models/fs_node.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         let c = row.column_count();
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/comparator/compare.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut tree: indextree::Arena<Comparison> = indextree::Arena::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/comparator/compare.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut parents_a: BTreeMap<String, Vec<&FsNode>> = BTreeMap::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/comparator/compare.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let mut parents_b: BTreeMap<String, Vec<&FsNode>> = BTreeMap::new();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `LI_FILE`
[INFO] [stderr]   --> src/comparator/compare.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | / const LI_FILE: &str = r#"<li>
[INFO] [stderr] 7  | |                              <table>
[INFO] [stderr] 8  | |                                  <tr class="${class}">
[INFO] [stderr] 9  | |                                      <td>${file-info-a}</td>
[INFO] [stderr] ...  |
[INFO] [stderr] 12 | |                              </table>
[INFO] [stderr] 13 | |                          </li>"#;
[INFO] [stderr]    | |_________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `LI_DIR`
[INFO] [stderr]   --> src/comparator/compare.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / const LI_DIR: &str = r#"<li class="collapse">
[INFO] [stderr] 16 | |                             <input type="checkbox" id="m${id}"/>
[INFO] [stderr] 17 | |                             <label for="m${id}">
[INFO] [stderr] 18 | |                                 ${directory-info}
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |                             </ul>
[INFO] [stderr] 23 | |                         </li>"#;
[INFO] [stderr]    | |________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `file`
[INFO] [stderr]   --> src/comparator/compare.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn file(fs_node: FsNode) -> String {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dir`
[INFO] [stderr]   --> src/comparator/compare.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn dir(fs_node: FsNode, children: &[FsNode]) -> String {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]  --> src/comparator/comparison.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     a: Option<&'a FsNode>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]  --> src/comparator/comparison.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     b: Option<&'a FsNode>
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ChangeType`
[INFO] [stderr]  --> src/comparator/comparison.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum ChangeType {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `css_class`
[INFO] [stderr]   --> src/comparator/comparison.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn css_class(change_type: ChangeType) -> &'static str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/comparator/comparison.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new() -> Comparison<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `change_type`
[INFO] [stderr]   --> src/comparator/comparison.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn change_type(&self) -> ChangeType {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `a`
[INFO] [stderr]   --> src/comparator/comparison.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn a(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_a`
[INFO] [stderr]   --> src/comparator/comparison.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn set_a(&mut self, fs_node: &'a FsNode) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `b`
[INFO] [stderr]   --> src/comparator/comparison.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn b(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_b`
[INFO] [stderr]   --> src/comparator/comparison.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn set_b(&mut self, fs_node: &'a FsNode) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.47s
[INFO] running `"docker" "inspect" "9f45a1d90f8fcb107991450db12781e11eeab64eb4a093ff493a9719be94ef26"`
[INFO] running `"docker" "rm" "-f" "9f45a1d90f8fcb107991450db12781e11eeab64eb4a093ff493a9719be94ef26"`
[INFO] [stdout] 9f45a1d90f8fcb107991450db12781e11eeab64eb4a093ff493a9719be94ef26