[INFO] cloning repository https://github.com/Lucasjlw/Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lucasjlw/Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucasjlw%2FRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucasjlw%2FRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d01639d4ff6ef666e61dc1a1de6ada5b2091649c
[INFO] checking Lucasjlw/Rust against try#b4c55082edd8dec08ce8af276d7054d9c4db20c4 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucasjlw%2FRust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lucasjlw/Rust
[INFO] finished tweaking git repo https://github.com/Lucasjlw/Rust
[INFO] tweaked toml for git repo https://github.com/Lucasjlw/Rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lucasjlw/Rust on toolchain b4c55082edd8dec08ce8af276d7054d9c4db20c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lucasjlw/Rust 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" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Lucasjlw/Rust against try#b4c55082edd8dec08ce8af276d7054d9c4db20c4 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucasjlw%2FRust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lucasjlw/Rust
[INFO] finished tweaking git repo https://github.com/Lucasjlw/Rust
[INFO] tweaked toml for git repo https://github.com/Lucasjlw/Rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lucasjlw/Rust on toolchain b4c55082edd8dec08ce8af276d7054d9c4db20c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lucasjlw/Rust 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" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f50b6e5ffd2b7a69d0062abaedc6bfde97718ba98bd3724865143a66be85813
[INFO] running `Command { std: "docker" "start" "-a" "8f50b6e5ffd2b7a69d0062abaedc6bfde97718ba98bd3724865143a66be85813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f50b6e5ffd2b7a69d0062abaedc6bfde97718ba98bd3724865143a66be85813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f50b6e5ffd2b7a69d0062abaedc6bfde97718ba98bd3724865143a66be85813", kill_on_drop: false }`
[INFO] [stdout] 8f50b6e5ffd2b7a69d0062abaedc6bfde97718ba98bd3724865143a66be85813
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f01fb975a0ae8820d5b3ec62c9894b47a1250e25c077d1542c7a1a091785ffc8
[INFO] running `Command { std: "docker" "start" "-a" "f01fb975a0ae8820d5b3ec62c9894b47a1250e25c077d1542c7a1a091785ffc8", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.168
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking miniz_oxide v0.8.2
[INFO] [stderr]     Checking bytes v1.9.0
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking flate2 v1.0.35
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.42.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking compression v0.1.0 (/opt/rustwide/workdir/projects/compression)
[INFO] [stderr]     Checking neural_network v0.1.0 (/opt/rustwide/workdir/projects/neuralnetwork)
[INFO] [stderr]     Checking image v0.1.0 (/opt/rustwide/workdir/projects/image)
[INFO] [stdout] warning: method `feed_forward` is never used
[INFO] [stdout]   --> projects/neuralnetwork/src/main.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Network {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn feed_forward(&self, data: Vec<f32>) -> Vec<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weights` is never read
[INFO] [stdout]   --> projects/neuralnetwork/src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Layer {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 51 |     pub weights: Vec<f32>
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color_type`
[INFO] [stdout]   --> projects/image/src/main.rs:62:53
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn generate_IHDR_chunk(width: u32, height: u32, color_type: usize) -> [u8; 25] {
[INFO] [stdout]    |                                                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChunkType` is never used
[INFO] [stdout]   --> projects/image/src/main.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum ChunkType {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `from` and `load_from_file` are never used
[INFO] [stdout]   --> projects/image/src/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl PNG {
[INFO] [stdout]    | -------- associated functions in this implementation
[INFO] [stdout] 25 |     fn from(data: Vec<u8>) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn load_from_file(path: &str) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> projects/image/src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         std::fs::write(path, self.data.clone());
[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] 48 |         let _ = std::fs::write(path, self.data.clone());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color_type`
[INFO] [stdout]   --> projects/image/src/main.rs:62:53
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn generate_IHDR_chunk(width: u32, height: u32, color_type: usize) -> [u8; 25] {
[INFO] [stdout]    |                                                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_color_type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChunkType` is never used
[INFO] [stdout]   --> projects/image/src/main.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum ChunkType {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `from` and `load_from_file` are never used
[INFO] [stdout]   --> projects/image/src/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl PNG {
[INFO] [stdout]    | -------- associated functions in this implementation
[INFO] [stdout] 25 |     fn from(data: Vec<u8>) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn load_from_file(path: &str) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> projects/image/src/main.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         std::fs::write(path, self.data.clone());
[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] 48 |         let _ = std::fs::write(path, self.data.clone());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking url-shortener v0.1.0 (/opt/rustwide/workdir/projects/shortener)
[INFO] [stdout] warning: method `generate_IHDR_chunk` should have a snake case name
[INFO] [stdout]   --> projects/image/src/main.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn generate_IHDR_chunk(width: u32, height: u32, color_type: usize) -> [u8; 25] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `generate_ihdr_chunk`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `generate_IDAT_chunk` should have a snake case name
[INFO] [stdout]   --> projects/image/src/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn generate_IDAT_chunk(width: u32, height: u32) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `generate_idat_chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `generate_IHDR_chunk` should have a snake case name
[INFO] [stdout]   --> projects/image/src/main.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn generate_IHDR_chunk(width: u32, height: u32, color_type: usize) -> [u8; 25] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `generate_ihdr_chunk`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `generate_IDAT_chunk` should have a snake case name
[INFO] [stdout]   --> projects/image/src/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn generate_IDAT_chunk(width: u32, height: u32) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `generate_idat_chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `generate_IEND_chunk` should have a snake case name
[INFO] [stdout]    --> projects/image/src/main.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn generate_IEND_chunk() -> [u8; 12] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `generate_iend_chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `generate_IEND_chunk` should have a snake case name
[INFO] [stdout]    --> projects/image/src/main.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn generate_IEND_chunk() -> [u8; 12] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `generate_iend_chunk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `feed_forward` is never used
[INFO] [stdout]   --> projects/neuralnetwork/src/main.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Network {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn feed_forward(&self, data: Vec<f32>) -> Vec<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weights` is never read
[INFO] [stdout]   --> projects/neuralnetwork/src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Layer {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 51 |     pub weights: Vec<f32>
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> projects/shortener/src/main.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{stdin, Write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> projects/shortener/src/main.rs:79:11
[INFO] [stdout]    |
[INFO] [stdout] 79 |     while (table.has(&shortcode)) {
[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] 79 -     while (table.has(&shortcode)) {
[INFO] [stdout] 79 +     while table.has(&shortcode)  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> projects/shortener/src/main.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{stdin, Write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> projects/shortener/src/main.rs:79:11
[INFO] [stdout]    |
[INFO] [stdout] 79 |     while (table.has(&shortcode)) {
[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] 79 -     while (table.has(&shortcode)) {
[INFO] [stdout] 79 +     while table.has(&shortcode)  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crusty v0.1.0 (/opt/rustwide/workdir/projects/crusty)
[INFO] [stdout] warning: fields `listener` and `connections` are never read
[INFO] [stdout]  --> projects/crusty/src/server/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Server {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 5 |     listener: Option<TcpListener>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 6 |     connections: Vec<TcpStream>,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `listener` and `connections` are never read
[INFO] [stdout]  --> projects/crusty/src/server/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Server {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 5 |     listener: Option<TcpListener>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 6 |     connections: Vec<TcpStream>,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chrono v0.4.39
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]     Checking chat_server v0.1.0 (/opt/rustwide/workdir/projects/chat/server)
[INFO] [stderr]     Checking task-manager v0.1.0 (/opt/rustwide/workdir/projects/tmanager)
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> projects/chat/server/src/html/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Read;
[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: `html::HtmlReader`
[INFO] [stdout]  --> projects/chat/server/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use html::HtmlReader;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> projects/chat/server/src/main.rs:242:19
[INFO] [stdout]     |
[INFO] [stdout] 242 |         } else if (payload_len <= 65535) {
[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] 242 -         } else if (payload_len <= 65535) {
[INFO] [stdout] 242 +         } else if payload_len <= 65535  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cursor`
[INFO] [stdout]   --> projects/chat/server/src/html/mod.rs:10:34
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn read_file(path: &str, cursor: usize) -> Result<Vec<u8>, impl Error> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor`
[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]   --> projects/chat/server/src/main.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 |                 if let Ok(mut stream) = stream {
[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: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> projects/tmanager/src/main.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |         if (task.id == task_id) {
[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] 107 -         if (task.id == task_id) {
[INFO] [stdout] 107 +         if task.id == task_id  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> projects/tmanager/src/main.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |         if (tasks.get(i).unwrap().id == task_id) {
[INFO] [stdout]     |            ^                                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 118 -         if (tasks.get(i).unwrap().id == task_id) {
[INFO] [stdout] 118 +         if tasks.get(i).unwrap().id == task_id  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> projects/chat/server/src/main.rs:190:20
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 Ok(n) => {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> projects/chat/server/src/html/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Read;
[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: `html::HtmlReader`
[INFO] [stdout]  --> projects/chat/server/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use html::HtmlReader;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> projects/chat/server/src/main.rs:242:19
[INFO] [stdout]     |
[INFO] [stdout] 242 |         } else if (payload_len <= 65535) {
[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] 242 -         } else if (payload_len <= 65535) {
[INFO] [stdout] 242 +         } else if payload_len <= 65535  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fin`
[INFO] [stdout]    --> projects/chat/server/src/main.rs:192:25
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     let fin = (buffer[0] & 0b10000000) != 0;
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_fin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> projects/chat/server/src/main.rs:226:21
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HtmlReader` is never constructed
[INFO] [stdout]  --> projects/chat/server/src/html/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct HtmlReader {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_file` is never used
[INFO] [stdout]   --> projects/chat/server/src/html/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl HtmlReader {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn read_file(path: &str, cursor: usize) -> Result<Vec<u8>, impl Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cursor`
[INFO] [stdout]   --> projects/chat/server/src/html/mod.rs:10:34
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn read_file(path: &str, cursor: usize) -> Result<Vec<u8>, impl Error> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cursor`
[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]   --> projects/chat/server/src/main.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 |                 if let Ok(mut stream) = stream {
[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: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> projects/tmanager/src/main.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |         if (task.id == task_id) {
[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] 107 -         if (task.id == task_id) {
[INFO] [stdout] 107 +         if task.id == task_id  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> projects/tmanager/src/main.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |         if (tasks.get(i).unwrap().id == task_id) {
[INFO] [stdout]     |            ^                                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 118 -         if (tasks.get(i).unwrap().id == task_id) {
[INFO] [stdout] 118 +         if tasks.get(i).unwrap().id == task_id  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> projects/chat/server/src/main.rs:190:20
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 Ok(n) => {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fin`
[INFO] [stdout]    --> projects/chat/server/src/main.rs:192:25
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     let fin = (buffer[0] & 0b10000000) != 0;
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_fin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> projects/chat/server/src/main.rs:226:21
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HtmlReader` is never constructed
[INFO] [stdout]  --> projects/chat/server/src/html/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct HtmlReader {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_file` is never used
[INFO] [stdout]   --> projects/chat/server/src/html/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl HtmlReader {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn read_file(path: &str, cursor: usize) -> Result<Vec<u8>, impl Error> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.38s
[INFO] running `Command { std: "docker" "inspect" "f01fb975a0ae8820d5b3ec62c9894b47a1250e25c077d1542c7a1a091785ffc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f01fb975a0ae8820d5b3ec62c9894b47a1250e25c077d1542c7a1a091785ffc8", kill_on_drop: false }`
[INFO] [stdout] f01fb975a0ae8820d5b3ec62c9894b47a1250e25c077d1542c7a1a091785ffc8
