[INFO] cloning repository https://github.com/Lovepreet67/Dostoevsky
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lovepreet67/Dostoevsky" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLovepreet67%2FDostoevsky", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLovepreet67%2FDostoevsky'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0c330be8a978993580e6e45571ae8ce54e53a02
[INFO] checking Lovepreet67/Dostoevsky against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLovepreet67%2FDostoevsky" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lovepreet67/Dostoevsky
[INFO] finished tweaking git repo https://github.com/Lovepreet67/Dostoevsky
[INFO] tweaked toml for git repo https://github.com/Lovepreet67/Dostoevsky written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lovepreet67/Dostoevsky on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lovepreet67/Dostoevsky 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4acb8bee72217041f86723f1c5b4292ca48c9c8d251f5b1b2771bba2e0e8eff3
[INFO] running `Command { std: "docker" "start" "-a" "4acb8bee72217041f86723f1c5b4292ca48c9c8d251f5b1b2771bba2e0e8eff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4acb8bee72217041f86723f1c5b4292ca48c9c8d251f5b1b2771bba2e0e8eff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4acb8bee72217041f86723f1c5b4292ca48c9c8d251f5b1b2771bba2e0e8eff3", kill_on_drop: false }`
[INFO] [stdout] 4acb8bee72217041f86723f1c5b4292ca48c9c8d251f5b1b2771bba2e0e8eff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cff337c1b42d8d9d9577ced0d5571cb0fcf3b803f3a9d534826e7fcadd0134c
[INFO] running `Command { std: "docker" "start" "-a" "9cff337c1b42d8d9d9577ced0d5571cb0fcf3b803f3a9d534826e7fcadd0134c", kill_on_drop: false }`
[INFO] [stderr]     Checking dostoevsky v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `self`, `sleep`, and `time::Duration`
[INFO] [stdout]  --> src/dostoevsky/mod.rs:1:88
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, io::Read,sync::{Arc,Mutex}, net::TcpListener, thread::{self, sleep}, time::Duration};
[INFO] [stdout]   |                                                                                        ^^^^  ^^^^^   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/dostoevsky/topic.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(super) struct Topic{ 
[INFO] [stdout]   |                   ----- field in this struct
[INFO] [stdout] 5 |     name:String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ConnectionType` is never used
[INFO] [stdout]  --> src/message/request.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum ConnectionType{
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Request` is never used
[INFO] [stdout]  --> src/message/request.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Request{
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/dostoevsky/topic.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         self.message_queue.push(Message::new(*buffer));   
[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] 15 |         let _ = self.message_queue.push(Message::new(*buffer));   
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self`, `sleep`, and `time::Duration`
[INFO] [stdout]  --> src/dostoevsky/mod.rs:1:88
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::HashMap, io::Read,sync::{Arc,Mutex}, net::TcpListener, thread::{self, sleep}, time::Duration};
[INFO] [stdout]   |                                                                                        ^^^^  ^^^^^   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/dostoevsky/topic.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(super) struct Topic{ 
[INFO] [stdout]   |                   ----- field in this struct
[INFO] [stdout] 5 |     name:String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ConnectionType` is never used
[INFO] [stdout]  --> src/message/request.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum ConnectionType{
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Request` is never used
[INFO] [stdout]  --> src/message/request.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Request{
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/dostoevsky/topic.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         self.message_queue.push(Message::new(*buffer));   
[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] 15 |         let _ = self.message_queue.push(Message::new(*buffer));   
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "9cff337c1b42d8d9d9577ced0d5571cb0fcf3b803f3a9d534826e7fcadd0134c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cff337c1b42d8d9d9577ced0d5571cb0fcf3b803f3a9d534826e7fcadd0134c", kill_on_drop: false }`
[INFO] [stdout] 9cff337c1b42d8d9d9577ced0d5571cb0fcf3b803f3a9d534826e7fcadd0134c
