[INFO] fetching crate rudabai 3.0.1...
[INFO] testing rudabai-3.0.1 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate rudabai 3.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rudabai 3.0.1
[INFO] finished tweaking crates.io crate rudabai 3.0.1
[INFO] tweaked toml for crates.io crate rudabai 3.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rudabai 3.0.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rudabai 3.0.1 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c
[INFO] running `Command { std: "docker" "start" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rudabai v3.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/database/database.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io;
[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::io::ErrorKind`
[INFO] [stdout]  --> src/database/database.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::ErrorKind;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db_password`
[INFO] [stdout]   --> src/database/database.rs:24:43
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new_datatabse(db_name: String, db_password: String) -> i32{
[INFO] [stdout]    |                                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_db_password`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut user_exists = "username already in use";
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut z: String = "".to_string();
[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/database/database.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut user_file = match user_file{
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `username`
[INFO] [stdout]   --> src/database/database.rs:32:30
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                              ^^^^^^^^
[INFO] [stdout] 33 |         let user_file = std::fs::File::open("{username}.txt");
[INFO] [stdout]    |                                             ---------------- you might have meant to use string interpolation in this string literal
[INFO] [stdout] ...
[INFO] [stdout] 50 |                 std::io::ErrorKind::NotFound => match std::fs::File::create("{username}.txt"){
[INFO] [stdout]    |                                                                             ---------------- you might have meant to use string interpolation in this string literal
[INFO] [stdout]    |
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let user_file = std::fs::File::open(format!("{username}.txt"));
[INFO] [stdout]    |                                             ++++++++                +
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 std::io::ErrorKind::NotFound => match std::fs::File::create(format!("{username}.txt")){
[INFO] [stdout]    |                                                                             ++++++++                +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(_username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/database/database.rs:32:48
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_exists`
[INFO] [stdout]   --> src/database/database.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut user_exists = "username already in use";
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_exists`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/database/database.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut z: String = "".to_string();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_file`
[INFO] [stdout]   --> src/database/database.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut user_file = match user_file{
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut password_file = match password_file{
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password_file`
[INFO] [stdout]   --> src/database/database.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut password_file = match password_file{
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/database/database.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let password = String::new();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Motor` is never constructed
[INFO] [stdout]  --> src/hardware/mod.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Motor{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Database` is never constructed
[INFO] [stdout]   --> src/database/database.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     struct Database{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/database/database.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     struct User{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/database/database.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         std::fs::create_dir_all(format!("/{db_name}"));
[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] 27 |         let _ = std::fs::create_dir_all(format!("/{db_name}"));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/database/database.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io;
[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::io::ErrorKind`
[INFO] [stdout]  --> src/database/database.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::ErrorKind;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db_password`
[INFO] [stdout]   --> src/database/database.rs:24:43
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new_datatabse(db_name: String, db_password: String) -> i32{
[INFO] [stdout]    |                                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_db_password`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut user_exists = "username already in use";
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut z: String = "".to_string();
[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/database/database.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut user_file = match user_file{
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `username`
[INFO] [stdout]   --> src/database/database.rs:32:30
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                              ^^^^^^^^
[INFO] [stdout] 33 |         let user_file = std::fs::File::open("{username}.txt");
[INFO] [stdout]    |                                             ---------------- you might have meant to use string interpolation in this string literal
[INFO] [stdout] ...
[INFO] [stdout] 50 |                 std::io::ErrorKind::NotFound => match std::fs::File::create("{username}.txt"){
[INFO] [stdout]    |                                                                             ---------------- you might have meant to use string interpolation in this string literal
[INFO] [stdout]    |
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let user_file = std::fs::File::open(format!("{username}.txt"));
[INFO] [stdout]    |                                             ++++++++                +
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 std::io::ErrorKind::NotFound => match std::fs::File::create(format!("{username}.txt")){
[INFO] [stdout]    |                                                                             ++++++++                +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(_username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/database/database.rs:32:48
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_exists`
[INFO] [stdout]   --> src/database/database.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut user_exists = "username already in use";
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_exists`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/database/database.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut z: String = "".to_string();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_file`
[INFO] [stdout]   --> src/database/database.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut user_file = match user_file{
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut password_file = match password_file{
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password_file`
[INFO] [stdout]   --> src/database/database.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut password_file = match password_file{
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/database/database.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let password = String::new();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Motor` is never constructed
[INFO] [stdout]  --> src/hardware/mod.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Motor{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Database` is never constructed
[INFO] [stdout]   --> src/database/database.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     struct Database{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/database/database.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     struct User{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/database/database.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         std::fs::create_dir_all(format!("/{db_name}"));
[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] 27 |         let _ = std::fs::create_dir_all(format!("/{db_name}"));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rudabai v3.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/database/database.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io;
[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::io::ErrorKind`
[INFO] [stdout]  --> src/database/database.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::ErrorKind;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db_password`
[INFO] [stdout]   --> src/database/database.rs:24:43
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new_datatabse(db_name: String, db_password: String) -> i32{
[INFO] [stdout]    |                                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_db_password`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut user_exists = "username already in use";
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut z: String = "".to_string();
[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/database/database.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut user_file = match user_file{
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `username`
[INFO] [stdout]   --> src/database/database.rs:32:30
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                              ^^^^^^^^
[INFO] [stdout] 33 |         let user_file = std::fs::File::open("{username}.txt");
[INFO] [stdout]    |                                             ---------------- you might have meant to use string interpolation in this string literal
[INFO] [stdout] ...
[INFO] [stdout] 50 |                 std::io::ErrorKind::NotFound => match std::fs::File::create("{username}.txt"){
[INFO] [stdout]    |                                                                             ---------------- you might have meant to use string interpolation in this string literal
[INFO] [stdout]    |
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let user_file = std::fs::File::open(format!("{username}.txt"));
[INFO] [stdout]    |                                             ++++++++                +
[INFO] [stdout] help: string interpolation only works in `format!` invocations
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 std::io::ErrorKind::NotFound => match std::fs::File::create(format!("{username}.txt")){
[INFO] [stdout]    |                                                                             ++++++++                +
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(_username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/database/database.rs:32:48
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn register_new_user(username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_exists`
[INFO] [stdout]   --> src/database/database.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut user_exists = "username already in use";
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_exists`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/database/database.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut z: String = "".to_string();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_file`
[INFO] [stdout]   --> src/database/database.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut user_file = match user_file{
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/database/database.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut password_file = match password_file{
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password_file`
[INFO] [stdout]   --> src/database/database.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut password_file = match password_file{
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/database/database.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let password = String::new();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Motor` is never constructed
[INFO] [stdout]  --> src/hardware/mod.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Motor{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Database` is never constructed
[INFO] [stdout]   --> src/database/database.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     struct Database{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/database/database.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     struct User{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/database/database.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         std::fs::create_dir_all(format!("/{db_name}"));
[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] 27 |         let _ = std::fs::create_dir_all(format!("/{db_name}"));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/database/database.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::ErrorKind`
[INFO] [stderr]  --> src/database/database.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::ErrorKind;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `db_password`
[INFO] [stderr]   --> src/database/database.rs:24:43
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new_datatabse(db_name: String, db_password: String) -> i32{
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_db_password`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/database/database.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut user_exists = "username already in use";
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/database/database.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut z: String = "".to_string();
[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/database/database.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut user_file = match user_file{
[INFO] [stderr]    |             ----^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `username`
[INFO] [stderr]   --> src/database/database.rs:32:30
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn register_new_user(username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stderr]    |                              ^^^^^^^^
[INFO] [stderr] 33 |         let user_file = std::fs::File::open("{username}.txt");
[INFO] [stderr]    |                                             ---------------- you might have meant to use string interpolation in this string literal
[INFO] [stderr] ...
[INFO] [stderr] 50 |                 std::io::ErrorKind::NotFound => match std::fs::File::create("{username}.txt"){
[INFO] [stderr]    |                                                                             ---------------- you might have meant to use string interpolation in this string literal
[INFO] [stderr]    |
[INFO] [stderr] help: string interpolation only works in `format!` invocations
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let user_file = std::fs::File::open(format!("{username}.txt"));
[INFO] [stderr]    |                                             ++++++++                +
[INFO] [stderr] help: string interpolation only works in `format!` invocations
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 std::io::ErrorKind::NotFound => match std::fs::File::create(format!("{username}.txt")){
[INFO] [stderr]    |                                                                             ++++++++                +
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn register_new_user(_username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stderr]    |                              +
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `password`
[INFO] [stderr]   --> src/database/database.rs:32:48
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn register_new_user(username: String, password: String) -> Result<String, std::io::Error>{
[INFO] [stderr]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `user_exists`
[INFO] [stderr]   --> src/database/database.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut user_exists = "username already in use";
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_exists`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/database/database.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut z: String = "".to_string();
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `user_file`
[INFO] [stderr]   --> src/database/database.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut user_file = match user_file{
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_file`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/database/database.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let mut password_file = match password_file{
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `password_file`
[INFO] [stderr]   --> src/database/database.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let mut password_file = match password_file{
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `password`
[INFO] [stderr]   --> src/database/database.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let password = String::new();
[INFO] [stderr]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Motor` is never constructed
[INFO] [stderr]  --> src/hardware/mod.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Motor{
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Database` is never constructed
[INFO] [stderr]   --> src/database/database.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     struct Database{
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `User` is never constructed
[INFO] [stderr]   --> src/database/database.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     struct User{
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/database/database.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         std::fs::create_dir_all(format!("/{db_name}"));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let _ = std::fs::create_dir_all(format!("/{db_name}"));
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rudabai` (lib) generated 18 warnings (run `cargo fix --lib -p rudabai` to apply 14 suggestions)
[INFO] [stderr] warning: `rudabai` (lib test) generated 18 warnings (18 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/rudabai/cbea8470f6931c54/out/rudabai-cbea8470f6931c54)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test hardware::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rudabai
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c", kill_on_drop: false }`
[INFO] [stdout] ce51509ce1a330273e75fe4a5c4e59f80776bb754f364086dbd38cd061e1ff7c
