[INFO] updating cached repository https://github.com/myst6re/vtun-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7aa89fbf07a7faf8403c8565195a1dd0233ac068
[INFO] checking myst6re/vtun-rs against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmyst6re%2Fvtun-rs" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/myst6re/vtun-rs on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/myst6re/vtun-rs
[INFO] finished tweaking git repo https://github.com/myst6re/vtun-rs
[INFO] tweaked toml for git repo https://github.com/myst6re/vtun-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/myst6re/vtun-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 22f46caa76c2928a644c527a29d8e627e838e6c95dfc08eedd183f5e3d3d23d3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "22f46caa76c2928a644c527a29d8e627e838e6c95dfc08eedd183f5e3d3d23d3"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking vtun-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `nix`?
[INFO] [stderr]  --> src/tunnel.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use nix::sys::socket::setsockopt;
[INFO] [stderr]   |     ^^^ maybe a missing crate `nix`?
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `nix`?
[INFO] [stderr]  --> src/tunnel.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use nix::sys::socket::sockopt::KeepAlive;
[INFO] [stderr]   |     ^^^ maybe a missing crate `nix`?
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `nix`?
[INFO] [stderr]  --> src/tunnel.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use nix::sys::socket::setsockopt;
[INFO] [stderr]   |     ^^^ maybe a missing crate `nix`?
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `nix`?
[INFO] [stderr]  --> src/tunnel.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use nix::sys::socket::sockopt::KeepAlive;
[INFO] [stderr]   |     ^^^ maybe a missing crate `nix`?
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Read` in this scope
[INFO] [stderr]  --> src/tunnel.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn tunnel_net<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]   |                  ^^^^ not found in this scope
[INFO] [stderr]   |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::Read;
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::prelude::Read;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Write` in this scope
[INFO] [stderr]  --> src/tunnel.rs:9:25
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn tunnel_net<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]   |                         ^^^^^ not found in this scope
[INFO] [stderr]   |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Write;
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::Write;
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::prelude::Write;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsRawFd` in this scope
[INFO] [stderr]  --> src/tunnel.rs:9:33
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn tunnel_net<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]   |                                 ^^^^^^^ not found in this scope
[INFO] [stderr]   |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::os::unix::io::AsRawFd;
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::os::unix::prelude::AsRawFd;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Read` in this scope
[INFO] [stderr]   --> src/tunnel.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn tunnel_loc<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]    |                  ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::Read;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::prelude::Read;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Write` in this scope
[INFO] [stderr]   --> src/tunnel.rs:25:25
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn tunnel_loc<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]    |                         ^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::fmt::Write;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::Write;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::prelude::Write;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsRawFd` in this scope
[INFO] [stderr]   --> src/tunnel.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn tunnel_loc<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]    |                                 ^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::os::unix::io::AsRawFd;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::os::unix::prelude::AsRawFd;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Read` in this scope
[INFO] [stderr]   --> src/tunnel.rs:41:19
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn tunnel_loop<S: Read + Write + AsRawFd>(net: S, loc: S) {
[INFO] [stderr]    |                   ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::Read;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::prelude::Read;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Write` in this scope
[INFO] [stderr]   --> src/tunnel.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn tunnel_loop<S: Read + Write + AsRawFd>(net: S, loc: S) {
[INFO] [stderr]    |                          ^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::fmt::Write;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::Write;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::prelude::Write;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsRawFd` in this scope
[INFO] [stderr]   --> src/tunnel.rs:41:34
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn tunnel_loop<S: Read + Write + AsRawFd>(net: S, loc: S) {
[INFO] [stderr]    |                                  ^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::os::unix::io::AsRawFd;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::os::unix::prelude::AsRawFd;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Duration` in this scope
[INFO] [stderr]   --> src/tunnel.rs:51:65
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub fn tunnel(mut stream: TcpStream, udp: bool, timeout: Option<Duration>) {
[INFO] [stderr]    |                                                                 ^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::time::Duration;
[INFO] [stderr]    |
[INFO] [stderr] help: you might be missing a type parameter
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub fn tunnel<Duration>(mut stream: TcpStream, udp: bool, timeout: Option<Duration>) {
[INFO] [stderr]    |              ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `setsockopt` in this scope
[INFO] [stderr]   --> src/tunnel.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         setsockopt(stream.as_raw_fd(), KeepAlive, true);
[INFO] [stderr]    |         ^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `KeepAlive` in this scope
[INFO] [stderr]   --> src/tunnel.rs:60:40
[INFO] [stderr]    |
[INFO] [stderr] 60 |         setsockopt(stream.as_raw_fd(), KeepAlive, true);
[INFO] [stderr]    |                                        ^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/tunnel.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 |     if (udp) {
[INFO] [stderr]    |        ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TcpStream`
[INFO] [stderr]  --> src/server.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::{TcpListener, TcpStream, ToSocketAddrs};
[INFO] [stderr]   |                             ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0412, E0425, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: could not compile `vtun-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0405]: cannot find trait `Read` in this scope
[INFO] [stderr]  --> src/tunnel.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn tunnel_net<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]   |                  ^^^^ not found in this scope
[INFO] [stderr]   |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::Read;
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::prelude::Read;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Write` in this scope
[INFO] [stderr]  --> src/tunnel.rs:9:25
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn tunnel_net<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]   |                         ^^^^^ not found in this scope
[INFO] [stderr]   |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Write;
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::Write;
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::prelude::Write;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsRawFd` in this scope
[INFO] [stderr]  --> src/tunnel.rs:9:33
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn tunnel_net<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]   |                                 ^^^^^^^ not found in this scope
[INFO] [stderr]   |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::os::unix::io::AsRawFd;
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::os::unix::prelude::AsRawFd;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Read` in this scope
[INFO] [stderr]   --> src/tunnel.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn tunnel_loc<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]    |                  ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::Read;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::prelude::Read;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Write` in this scope
[INFO] [stderr]   --> src/tunnel.rs:25:25
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn tunnel_loc<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]    |                         ^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::fmt::Write;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::Write;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::prelude::Write;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsRawFd` in this scope
[INFO] [stderr]   --> src/tunnel.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn tunnel_loc<S: Read + Write + AsRawFd>(in_c: S, out_c: S) {
[INFO] [stderr]    |                                 ^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::os::unix::io::AsRawFd;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::os::unix::prelude::AsRawFd;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Read` in this scope
[INFO] [stderr]   --> src/tunnel.rs:41:19
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn tunnel_loop<S: Read + Write + AsRawFd>(net: S, loc: S) {
[INFO] [stderr]    |                   ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::Read;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::prelude::Read;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Write` in this scope
[INFO] [stderr]   --> src/tunnel.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn tunnel_loop<S: Read + Write + AsRawFd>(net: S, loc: S) {
[INFO] [stderr]    |                          ^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::fmt::Write;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::Write;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::io::prelude::Write;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsRawFd` in this scope
[INFO] [stderr]   --> src/tunnel.rs:41:34
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn tunnel_loop<S: Read + Write + AsRawFd>(net: S, loc: S) {
[INFO] [stderr]    |                                  ^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::os::unix::io::AsRawFd;
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::os::unix::prelude::AsRawFd;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Duration` in this scope
[INFO] [stderr]   --> src/tunnel.rs:51:65
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub fn tunnel(mut stream: TcpStream, udp: bool, timeout: Option<Duration>) {
[INFO] [stderr]    |                                                                 ^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::time::Duration;
[INFO] [stderr]    |
[INFO] [stderr] help: you might be missing a type parameter
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub fn tunnel<Duration>(mut stream: TcpStream, udp: bool, timeout: Option<Duration>) {
[INFO] [stderr]    |              ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `setsockopt` in this scope
[INFO] [stderr]   --> src/tunnel.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         setsockopt(stream.as_raw_fd(), KeepAlive, true);
[INFO] [stderr]    |         ^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `KeepAlive` in this scope
[INFO] [stderr]   --> src/tunnel.rs:60:40
[INFO] [stderr]    |
[INFO] [stderr] 60 |         setsockopt(stream.as_raw_fd(), KeepAlive, true);
[INFO] [stderr]    |                                        ^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/tunnel.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 |     if (udp) {
[INFO] [stderr]    |        ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TcpStream`
[INFO] [stderr]  --> src/server.rs:1:29
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::{TcpListener, TcpStream, ToSocketAddrs};
[INFO] [stderr]   |                             ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0412, E0425, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: could not compile `vtun-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "22f46caa76c2928a644c527a29d8e627e838e6c95dfc08eedd183f5e3d3d23d3"`
[INFO] running `"docker" "rm" "-f" "22f46caa76c2928a644c527a29d8e627e838e6c95dfc08eedd183f5e3d3d23d3"`
[INFO] [stdout] 22f46caa76c2928a644c527a29d8e627e838e6c95dfc08eedd183f5e3d3d23d3
