[INFO] cloning repository https://github.com/llllishuo/Tcp-demo-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/llllishuo/Tcp-demo-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllllishuo%2FTcp-demo-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllllishuo%2FTcp-demo-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] be816c44cbe60ae986d00e883af0f903e8f24ff0 [INFO] checking llllishuo/Tcp-demo-rust against try#943e2200e35c3825486c4671b6cab0107a07f8c1 for pr-148952 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllllishuo%2FTcp-demo-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/llllishuo/Tcp-demo-rust [INFO] finished tweaking git repo https://github.com/llllishuo/Tcp-demo-rust [INFO] tweaked toml for git repo https://github.com/llllishuo/Tcp-demo-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/llllishuo/Tcp-demo-rust on toolchain 943e2200e35c3825486c4671b6cab0107a07f8c1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/llllishuo/Tcp-demo-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" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking llllishuo/Tcp-demo-rust against try#943e2200e35c3825486c4671b6cab0107a07f8c1 for pr-148952 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllllishuo%2FTcp-demo-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/llllishuo/Tcp-demo-rust [INFO] finished tweaking git repo https://github.com/llllishuo/Tcp-demo-rust [INFO] tweaked toml for git repo https://github.com/llllishuo/Tcp-demo-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/llllishuo/Tcp-demo-rust on toolchain 943e2200e35c3825486c4671b6cab0107a07f8c1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/llllishuo/Tcp-demo-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" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3e37729ba2d798f9f0ee84439d4572ab041cb6d41a99c283f7812e1cb1d002fc [INFO] running `Command { std: "docker" "start" "-a" "3e37729ba2d798f9f0ee84439d4572ab041cb6d41a99c283f7812e1cb1d002fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e37729ba2d798f9f0ee84439d4572ab041cb6d41a99c283f7812e1cb1d002fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e37729ba2d798f9f0ee84439d4572ab041cb6d41a99c283f7812e1cb1d002fc", kill_on_drop: false }` [INFO] [stdout] 3e37729ba2d798f9f0ee84439d4572ab041cb6d41a99c283f7812e1cb1d002fc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1c7c4e98002f14b5c296b31c0a184e461c4d33951122848efbf7806c2b9272da [INFO] running `Command { std: "docker" "start" "-a" "1c7c4e98002f14b5c296b31c0a184e461c4d33951122848efbf7806c2b9272da", kill_on_drop: false }` [INFO] [stderr] Checking TcpDemoRust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `SocketAddr` and `TcpListener` [INFO] [stdout] --> src/lib.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | use std::net::{TcpListener, TcpStream, SocketAddr}; [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::rc::Rc` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc` and `Mutex` [INFO] [stdout] --> src/lib.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `SocketAddr` and `TcpListener` [INFO] [stdout] --> src/lib.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | use std::net::{TcpListener, TcpStream, SocketAddr}; [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::rc::Rc` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::rc::Rc; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc` and `Mutex` [INFO] [stdout] --> src/lib.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `TcpDemoRust` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = help: convert the identifier to snake case: `tcp_demo_rust` [INFO] [stdout] = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 80 | stream.flush(); [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] 80 | let _ = stream.flush(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 80 | stream.flush(); [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] 80 | let _ = stream.flush(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | receive(stream.try_clone().expect("")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 95 | let _ = receive(stream.try_clone().expect("")); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:95:13 [INFO] [stdout] | [INFO] [stdout] 95 | receive(stream.try_clone().expect("")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 95 | let _ = receive(stream.try_clone().expect("")); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `SocketAddr` [INFO] [stdout] --> src/bin/server.rs:2:40 [INFO] [stdout] | [INFO] [stdout] 2 | use std::net::{TcpListener, TcpStream, SocketAddr}; [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: `Write` [INFO] [stdout] --> src/bin/server.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufRead`, `JoinHandle`, `Write`, `self`, and `self` [INFO] [stdout] --> src/bin/client.rs:4:23 [INFO] [stdout] | [INFO] [stdout] 4 | }, error::Error, io::{self, Write, BufRead}, thread::{self, JoinHandle}}; [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 imports: `BufRead`, `JoinHandle`, `Write`, `self`, and `self` [INFO] [stdout] --> src/bin/client.rs:4:23 [INFO] [stdout] | [INFO] [stdout] 4 | }, error::Error, io::{self, Write, BufRead}, thread::{self, JoinHandle}}; [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: `SocketAddr` [INFO] [stdout] --> src/bin/server.rs:2:40 [INFO] [stdout] | [INFO] [stdout] 2 | use std::net::{TcpListener, TcpStream, SocketAddr}; [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: `Write` [INFO] [stdout] --> src/bin/server.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/server.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let mut cliend_vec: Arc>> = Arc::new(Mutex::new(HashMap::new())); [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/bin/server.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let mut cliend_vec: Arc>> = Arc::new(Mutex::new(HashMap::new())); [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s [INFO] running `Command { std: "docker" "inspect" "1c7c4e98002f14b5c296b31c0a184e461c4d33951122848efbf7806c2b9272da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c7c4e98002f14b5c296b31c0a184e461c4d33951122848efbf7806c2b9272da", kill_on_drop: false }` [INFO] [stdout] 1c7c4e98002f14b5c296b31c0a184e461c4d33951122848efbf7806c2b9272da