[INFO] cloning repository https://github.com/openeuler-mirror/summer2021-79
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/openeuler-mirror/summer2021-79" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopeneuler-mirror%2Fsummer2021-79", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopeneuler-mirror%2Fsummer2021-79'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11965de581290305dd949b0dc36598098a187b29
[INFO] checking openeuler-mirror/summer2021-79 against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopeneuler-mirror%2Fsummer2021-79" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/openeuler-mirror/summer2021-79
[INFO] finished tweaking git repo https://github.com/openeuler-mirror/summer2021-79
[INFO] tweaked toml for git repo https://github.com/openeuler-mirror/summer2021-79 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/openeuler-mirror/summer2021-79 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/openeuler-mirror/summer2021-79 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 268d5ae4654f4fdfc2689ddb5775a38d5c0415f5912404886dd657727b25c1c5
[INFO] running `Command { std: "docker" "start" "-a" "268d5ae4654f4fdfc2689ddb5775a38d5c0415f5912404886dd657727b25c1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "268d5ae4654f4fdfc2689ddb5775a38d5c0415f5912404886dd657727b25c1c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "268d5ae4654f4fdfc2689ddb5775a38d5c0415f5912404886dd657727b25c1c5", kill_on_drop: false }`
[INFO] [stdout] 268d5ae4654f4fdfc2689ddb5775a38d5c0415f5912404886dd657727b25c1c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb2b996276b291076a90f1ba52909ef3c03eb73a2d21c72738f478d159148bcb
[INFO] running `Command { std: "docker" "start" "-a" "fb2b996276b291076a90f1ba52909ef3c03eb73a2d21c72738f478d159148bcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking happ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/metrics/loc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::__private::quote::__private::ext::RepToTokensExt`
[INFO] [stdout]  --> src/metrics/loc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use syn::__private::quote::__private::ext::RepToTokensExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::spanned::Spanned`
[INFO] [stdout]  --> src/metrics/loc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::spanned::Spanned;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/metrics/loc.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::__private::quote::__private::ext::RepToTokensExt`
[INFO] [stdout]  --> src/metrics/loc.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use syn::__private::quote::__private::ext::RepToTokensExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::spanned::Spanned`
[INFO] [stdout]  --> src/metrics/loc.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::spanned::Spanned;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/tools/cc_stats.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/tools/loc_func_stats.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/tools/loc_file_stats.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/tools/file_duplicate.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         (1.0 - (self.file_hashs.len() as f32) / (self.files.len() as f32))
[INFO] [stdout]    |         ^                                                                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 -         (1.0 - (self.file_hashs.len() as f32) / (self.files.len() as f32))
[INFO] [stdout] 44 +         1.0 - (self.file_hashs.len() as f32) / (self.files.len() as f32) 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/tools/cc_stats.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/tools/loc_func_stats.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/tools/loc_file_stats.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/tools/file_duplicate.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         (1.0 - (self.file_hashs.len() as f32) / (self.files.len() as f32))
[INFO] [stdout]    |         ^                                                                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 -         (1.0 - (self.file_hashs.len() as f32) / (self.files.len() as f32))
[INFO] [stdout] 44 +         1.0 - (self.file_hashs.len() as f32) / (self.files.len() as f32) 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tools/file_duplicate.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 let mut val = self.file_hashs.get_mut(&hash_num).unwrap();
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `func_file` is never read
[INFO] [stdout]   --> src/tools/cc_stats.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CCFunction {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 12 |     func_name: String,
[INFO] [stdout] 13 |     func_file: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CCFunction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name`, `file`, and `cc` are never used
[INFO] [stdout]   --> src/tools/cc_stats.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl CCFunction {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn file(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn cc(&self) -> usize {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_func` is never used
[INFO] [stdout]   --> src/tools/cc_stats.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl CCStats {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn add_func(&mut self, func: CCFunction) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `func_file` is never read
[INFO] [stdout]   --> src/tools/loc_func_stats.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LocFunction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 12 |     func_name: String,
[INFO] [stdout] 13 |     func_file: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LocFunction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name`, `file`, and `loc` are never used
[INFO] [stdout]   --> src/tools/loc_func_stats.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl LocFunction {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn file(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn loc(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_func` is never used
[INFO] [stdout]   --> src/tools/loc_func_stats.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl LocStats {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn add_func(&mut self, func: LocFunction) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name` and `loc` are never used
[INFO] [stdout]   --> src/tools/loc_file_stats.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl LocFile {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn loc(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_file` is never used
[INFO] [stdout]   --> src/tools/loc_file_stats.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl LocFileStats {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn add_file(&mut self, file: LocFile) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `name`, and `file_num` are never used
[INFO] [stdout]   --> src/tools/large_dir.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl DirStat {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 20 |
[INFO] [stdout] 21 |     pub fn new(dir_name:String, file_num: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn file_num(&self) -> &usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_dirs` and `min` are never used
[INFO] [stdout]   --> src/tools/large_dir.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl DirStats {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn add_dirs(&mut self, dirs: Vec<DirStat>) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn min(&mut self) -> Option<&DirStat> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tools/file_duplicate.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             file.read_to_string(&mut s);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |             let _ = file.read_to_string(&mut s);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tools/file_duplicate.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 let mut val = self.file_hashs.get_mut(&hash_num).unwrap();
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `func_file` is never read
[INFO] [stdout]   --> src/tools/cc_stats.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CCFunction {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 12 |     func_name: String,
[INFO] [stdout] 13 |     func_file: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CCFunction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name`, `file`, and `cc` are never used
[INFO] [stdout]   --> src/tools/cc_stats.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl CCFunction {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn file(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn cc(&self) -> usize {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_func` is never used
[INFO] [stdout]   --> src/tools/cc_stats.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl CCStats {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn add_func(&mut self, func: CCFunction) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `func_file` is never read
[INFO] [stdout]   --> src/tools/loc_func_stats.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LocFunction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 12 |     func_name: String,
[INFO] [stdout] 13 |     func_file: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LocFunction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name`, `file`, and `loc` are never used
[INFO] [stdout]   --> src/tools/loc_func_stats.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl LocFunction {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn file(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn loc(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_func` is never used
[INFO] [stdout]   --> src/tools/loc_func_stats.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl LocStats {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn add_func(&mut self, func: LocFunction) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name` and `loc` are never used
[INFO] [stdout]   --> src/tools/loc_file_stats.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl LocFile {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn loc(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_file` is never used
[INFO] [stdout]   --> src/tools/loc_file_stats.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl LocFileStats {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn add_file(&mut self, file: LocFile) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `name`, and `file_num` are never used
[INFO] [stdout]   --> src/tools/large_dir.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl DirStat {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 20 |
[INFO] [stdout] 21 |     pub fn new(dir_name:String, file_num: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn file_num(&self) -> &usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_dirs` and `min` are never used
[INFO] [stdout]   --> src/tools/large_dir.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl DirStats {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn add_dirs(&mut self, dirs: Vec<DirStat>) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn min(&mut self) -> Option<&DirStat> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tools/file_duplicate.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             file.read_to_string(&mut s);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |             let _ = file.read_to_string(&mut s);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.80s
[INFO] running `Command { std: "docker" "inspect" "fb2b996276b291076a90f1ba52909ef3c03eb73a2d21c72738f478d159148bcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb2b996276b291076a90f1ba52909ef3c03eb73a2d21c72738f478d159148bcb", kill_on_drop: false }`
[INFO] [stdout] fb2b996276b291076a90f1ba52909ef3c03eb73a2d21c72738f478d159148bcb
