[INFO] fetching crate net-utils 0.0.5... [INFO] building net-utils-0.0.5 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate net-utils 0.0.5 into /workspace/builds/worker-21/source [INFO] validating manifest of crates.io crate net-utils 0.0.5 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate net-utils 0.0.5 [INFO] finished tweaking crates.io crate net-utils 0.0.5 [INFO] tweaked toml for crates.io crate net-utils 0.0.5 written to /workspace/builds/worker-21/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cca0671a9a0df1cb55ca4fe53b688141a06d2ca2194eda4ba73062c6daf4644a [INFO] running `Command { std: "docker" "start" "-a" "cca0671a9a0df1cb55ca4fe53b688141a06d2ca2194eda4ba73062c6daf4644a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cca0671a9a0df1cb55ca4fe53b688141a06d2ca2194eda4ba73062c6daf4644a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cca0671a9a0df1cb55ca4fe53b688141a06d2ca2194eda4ba73062c6daf4644a", kill_on_drop: false }` [INFO] [stdout] cca0671a9a0df1cb55ca4fe53b688141a06d2ca2194eda4ba73062c6daf4644a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ebef2818117b72f700514d1b7d79907ce97ff7b37e4d8d94cdaa2aaa0e41c0db [INFO] running `Command { std: "docker" "start" "-a" "ebef2818117b72f700514d1b7d79907ce97ff7b37e4d8d94cdaa2aaa0e41c0db", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling uuid v0.1.18 [INFO] [stderr] Compiling net-utils v0.0.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/net/config.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::FromStr` [INFO] [stdout] --> src/net/conn.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:151:22 [INFO] [stdout] | [INFO] [stdout] 151 | let server = try!(Connection::host_to_sock_address(host, port)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:154:29 [INFO] [stdout] | [INFO] [stdout] 154 | stream_socket = try!(TcpStream::connect_timeout( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:159:29 [INFO] [stdout] | [INFO] [stdout] 159 | stream_socket = try!(TcpStream::connect(server)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:173:29 [INFO] [stdout] | [INFO] [stdout] 173 | let writer_socket = try!(stream_socket.try_clone()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/net/conn.rs:361:47 [INFO] [stdout] | [INFO] [stdout] 361 | fn write(&mut self, buf: &[u8]) -> Result<(usize)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 361 - fn write(&mut self, buf: &[u8]) -> Result<(usize)> { [INFO] [stdout] 361 + fn write(&mut self, buf: &[u8]) -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/net/conn.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 120 | let server = match (host, port).to_socket_addrs() { [INFO] [stdout] | ______________________- [INFO] [stdout] 121 | | Ok(mut host_iter) => { [INFO] [stdout] 122 | | match host_iter.next() { [INFO] [stdout] 123 | | Some(mut host_addr) => return Ok(host_addr), [INFO] [stdout] ... | [INFO] [stdout] 135 | | } [INFO] [stdout] 136 | | }; [INFO] [stdout] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 137 | let err_str = format!("Failed to parse {}:{}. ", host, port); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `server` [INFO] [stdout] --> src/net/conn.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | let server = match (host, port).to_socket_addrs() { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/net/conn.rs:123:26 [INFO] [stdout] | [INFO] [stdout] 123 | Some(mut host_addr) => return Ok(host_addr), [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/net/conn.rs:149:13 [INFO] [stdout] | [INFO] [stdout] 149 | let mut stream_socket; [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `from_file` [INFO] [stdout] --> src/net/config.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 58 | fn from_file(file: &str) -> Config { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for an associated function [INFO] [stdout] --> src/net/conn.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn get_peer_address(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | #![warn(missing_docs)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for an associated function [INFO] [stdout] --> src/net/conn.rs:67:5 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn get_local_address(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.19s [INFO] running `Command { std: "docker" "inspect" "ebef2818117b72f700514d1b7d79907ce97ff7b37e4d8d94cdaa2aaa0e41c0db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebef2818117b72f700514d1b7d79907ce97ff7b37e4d8d94cdaa2aaa0e41c0db", kill_on_drop: false }` [INFO] [stdout] ebef2818117b72f700514d1b7d79907ce97ff7b37e4d8d94cdaa2aaa0e41c0db [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e0c7ff24e7e4ed40f7b77232c5fd8544c9234e92d0a3c6fb4021a887aac64c35 [INFO] running `Command { std: "docker" "start" "-a" "e0c7ff24e7e4ed40f7b77232c5fd8544c9234e92d0a3c6fb4021a887aac64c35", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/net/config.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::FromStr` [INFO] [stdout] --> src/net/conn.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:151:22 [INFO] [stdout] | [INFO] [stdout] 151 | let server = try!(Connection::host_to_sock_address(host, port)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:154:29 [INFO] [stdout] | [INFO] [stdout] 154 | stream_socket = try!(TcpStream::connect_timeout( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:159:29 [INFO] [stdout] | [INFO] [stdout] 159 | stream_socket = try!(TcpStream::connect(server)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:173:29 [INFO] [stdout] | [INFO] [stdout] 173 | let writer_socket = try!(stream_socket.try_clone()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/net/conn.rs:361:47 [INFO] [stdout] | [INFO] [stdout] 361 | fn write(&mut self, buf: &[u8]) -> Result<(usize)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 361 - fn write(&mut self, buf: &[u8]) -> Result<(usize)> { [INFO] [stdout] 361 + fn write(&mut self, buf: &[u8]) -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/net/conn.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 120 | let server = match (host, port).to_socket_addrs() { [INFO] [stdout] | ______________________- [INFO] [stdout] 121 | | Ok(mut host_iter) => { [INFO] [stdout] 122 | | match host_iter.next() { [INFO] [stdout] 123 | | Some(mut host_addr) => return Ok(host_addr), [INFO] [stdout] ... | [INFO] [stdout] 135 | | } [INFO] [stdout] 136 | | }; [INFO] [stdout] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 137 | let err_str = format!("Failed to parse {}:{}. ", host, port); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `server` [INFO] [stdout] --> src/net/conn.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | let server = match (host, port).to_socket_addrs() { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/net/conn.rs:123:26 [INFO] [stdout] | [INFO] [stdout] 123 | Some(mut host_addr) => return Ok(host_addr), [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/net/conn.rs:149:13 [INFO] [stdout] | [INFO] [stdout] 149 | let mut stream_socket; [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `from_file` [INFO] [stdout] --> src/net/config.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 58 | fn from_file(file: &str) -> Config { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for an associated function [INFO] [stdout] --> src/net/conn.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn get_peer_address(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | #![warn(missing_docs)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: missing documentation for an associated function [INFO] [stdout] --> src/net/conn.rs:67:5 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn get_local_address(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling env_logger v0.3.5 [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling net-utils v0.0.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/net/config.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/net/config.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::FromStr` [INFO] [stdout] --> src/net/conn.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:151:22 [INFO] [stdout] | [INFO] [stdout] 151 | let server = try!(Connection::host_to_sock_address(host, port)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:154:29 [INFO] [stdout] | [INFO] [stdout] 154 | stream_socket = try!(TcpStream::connect_timeout( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:159:29 [INFO] [stdout] | [INFO] [stdout] 159 | stream_socket = try!(TcpStream::connect(server)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/net/conn.rs:173:29 [INFO] [stdout] | [INFO] [stdout] 173 | let writer_socket = try!(stream_socket.try_clone()); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/net/conn.rs:361:47 [INFO] [stdout] | [INFO] [stdout] 361 | fn write(&mut self, buf: &[u8]) -> Result<(usize)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 361 - fn write(&mut self, buf: &[u8]) -> Result<(usize)> { [INFO] [stdout] 361 + fn write(&mut self, buf: &[u8]) -> Result { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/net/poolmgr.rs:296:46 [INFO] [stdout] | [INFO] [stdout] 296 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/net/poolmgr.rs:297:43 [INFO] [stdout] | [INFO] [stdout] 297 | static NEXT_OFFSET: AtomicUsize = ATOMIC_USIZE_INIT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/net/conn.rs:137:9 [INFO] [stdout] | [INFO] [stdout] 120 | let server = match (host, port).to_socket_addrs() { [INFO] [stdout] | ______________________- [INFO] [stdout] 121 | | Ok(mut host_iter) => { [INFO] [stdout] 122 | | match host_iter.next() { [INFO] [stdout] 123 | | Some(mut host_addr) => return Ok(host_addr), [INFO] [stdout] ... | [INFO] [stdout] 135 | | } [INFO] [stdout] 136 | | }; [INFO] [stdout] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 137 | let err_str = format!("Failed to parse {}:{}. ", host, port); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `server` [INFO] [stdout] --> src/net/conn.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | let server = match (host, port).to_socket_addrs() { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/net/conn.rs:123:26 [INFO] [stdout] | [INFO] [stdout] 123 | Some(mut host_addr) => return Ok(host_addr), [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/net/conn.rs:149:13 [INFO] [stdout] | [INFO] [stdout] 149 | let mut stream_socket; [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `from_file` [INFO] [stdout] --> src/net/config.rs:58:8 [INFO] [stdout] | [INFO] [stdout] 58 | fn from_file(file: &str) -> Config { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.74s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/net_utils-81f57d0b78833915) [INFO] running `Command { std: "docker" "inspect" "e0c7ff24e7e4ed40f7b77232c5fd8544c9234e92d0a3c6fb4021a887aac64c35", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0c7ff24e7e4ed40f7b77232c5fd8544c9234e92d0a3c6fb4021a887aac64c35", kill_on_drop: false }` [INFO] [stdout] e0c7ff24e7e4ed40f7b77232c5fd8544c9234e92d0a3c6fb4021a887aac64c35