[INFO] cloning repository https://github.com/realityone/akarin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realityone/akarin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealityone%2Fakarin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealityone%2Fakarin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6734d9b14288800ee23415a6a900fe115c803960
[INFO] testing realityone/akarin against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealityone%2Fakarin" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/realityone/akarin
[INFO] finished tweaking git repo https://github.com/realityone/akarin
[INFO] tweaked toml for git repo https://github.com/realityone/akarin written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/realityone/akarin on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/realityone/akarin 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 083213acc86cd184752cc9712e3819d7cd11506fc5645fe12295b8244c4b0c0d
[INFO] running `Command { std: "docker" "start" "-a" "083213acc86cd184752cc9712e3819d7cd11506fc5645fe12295b8244c4b0c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "083213acc86cd184752cc9712e3819d7cd11506fc5645fe12295b8244c4b0c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "083213acc86cd184752cc9712e3819d7cd11506fc5645fe12295b8244c4b0c0d", kill_on_drop: false }`
[INFO] [stdout] 083213acc86cd184752cc9712e3819d7cd11506fc5645fe12295b8244c4b0c0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a06aee55e2f4f3b9fdc57db99cd643d8cce88089cafee45f668b16ec62f6a87f
[INFO] running `Command { std: "docker" "start" "-a" "a06aee55e2f4f3b9fdc57db99cd643d8cce88089cafee45f668b16ec62f6a87f", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling futures v0.1.16
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling either v1.2.0
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling cc v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling iovec v0.1.1
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling bytes v0.4.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.14
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling lazycell v0.5.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling mio v0.6.10
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling scoped-tls v0.1.0
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling ioctl-sys v0.5.2
[INFO] [stderr]    Compiling transient-hashmap v0.4.0
[INFO] [stderr]    Compiling tokio-io v0.1.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling tokio-core v0.1.10
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling pretty_env_logger v0.1.1
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]    Compiling backtrace v0.3.3
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling akarin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[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: `Device`
[INFO] [stdout]  --> src/tun/linux/mod.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::device::{Device, create};
[INFO] [stdout]   |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::os::create`
[INFO] [stdout]   --> src/tun/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub use self::os::create;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::configuration::Configuration`
[INFO] [stdout]   --> src/tun/mod.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub use self::configuration::Configuration;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mem`
[INFO] [stdout]  --> src/akarin/server.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt, io, mem};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/akarin/mod.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn serve(self, mut core: Core, handle: Handle) -> Result<()>;
[INFO] [stdout]    |                    ^^^^^^^^ help: remove `mut` from the parameter: `core`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout]    = note: `#[warn(patterns_in_fns_without_body)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/akarin/mod.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()>;
[INFO] [stdout]    |                      ^^^^^^^^ help: remove `mut` from the parameter: `core`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::error::*`
[INFO] [stdout]  --> src/transport/network.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use common::error::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/common/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / error_chain! {
[INFO] [stdout]  2 | |     errors {
[INFO] [stdout]  3 | |         // Tun
[INFO] [stdout]  4 | |         TunNameTooLong
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/transport/network.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / lazy_static!{
[INFO] [stdout]  9 | |    pub static ref IPV4_HEADER_LEN: usize = mem::size_of::<IPv4Header>();
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/transport/network.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / lazy_static!{
[INFO] [stdout]  9 | |    pub static ref IPV4_HEADER_LEN: usize = mem::size_of::<IPv4Header>();
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/akarin/server.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |     crypto: &'a Crypto,
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 |     crypto: &'a dyn Crypto,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/akarin/client.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |     crypto: &'a Crypto,
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     crypto: &'a dyn Crypto,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/akarin/server.rs:124:41
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn new<'b>(tun: Device, crypto: &'a Crypto, udp: UdpSocket, configuration: &'b ServerConfiguration) -> Self {
[INFO] [stdout]     |                                         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn new<'b>(tun: Device, crypto: &'a dyn Crypto, udp: UdpSocket, configuration: &'b ServerConfiguration) -> Self {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/akarin/client.rs:24:41
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new<'d>(tun: Device, crypto: &'a Crypto, udp: UdpSocket, configuration: &'d ClientConfiguration) -> Self {
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new<'d>(tun: Device, crypto: &'a dyn Crypto, udp: UdpSocket, configuration: &'d ClientConfiguration) -> Self {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/crypto/chacha20_poly1305.rs:9:43
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn init_crypto(password: &str) -> Box<Crypto> {
[INFO] [stdout]   |                                           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn init_crypto(password: &str) -> Box<dyn Crypto> {
[INFO] [stdout]   |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/crypto/mod.rs:21:46
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn init(self, password: &str) -> Box<Crypto> {
[INFO] [stdout]    |                                              ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn init(self, password: &str) -> Box<dyn Crypto> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/common/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / error_chain! {
[INFO] [stdout]  2 | |     errors {
[INFO] [stdout]  3 | |         // Tun
[INFO] [stdout]  4 | |         TunNameTooLong
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/akarin/server.rs:157:27
[INFO] [stdout]     |
[INFO] [stdout] 157 |             if let Some(&(token, sockaddr)) = self.clients.get(client_id) {}
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sockaddr`
[INFO] [stdout]    --> src/akarin/server.rs:157:34
[INFO] [stdout]     |
[INFO] [stdout] 157 |             if let Some(&(token, sockaddr)) = self.clients.get(client_id) {}
[INFO] [stdout]     |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sockaddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/akarin/server.rs:163:14
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn serve(mut self, mut core: Core, handle: Handle) -> Result<()> {
[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: unused variable: `handle`
[INFO] [stdout]    --> src/akarin/server.rs:163:40
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn serve(mut self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/akarin/client.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stdout]    |                      ----^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `core`
[INFO] [stdout]   --> src/akarin/client.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stdout]    |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> src/akarin/client.rs:39:38
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stdout]    |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crypto`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let crypto = Ciphers::CHACHA20_POLY1305.init(password);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_crypto`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/akarin/server.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         core.run(self);
[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] 164 |         let _ = core.run(self);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.24s
[INFO] running `Command { std: "docker" "inspect" "a06aee55e2f4f3b9fdc57db99cd643d8cce88089cafee45f668b16ec62f6a87f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a06aee55e2f4f3b9fdc57db99cd643d8cce88089cafee45f668b16ec62f6a87f", kill_on_drop: false }`
[INFO] [stdout] a06aee55e2f4f3b9fdc57db99cd643d8cce88089cafee45f668b16ec62f6a87f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aedc008b40a30da921bdf1f146986264773856a08b39e871194630352d65752f
[INFO] running `Command { std: "docker" "start" "-a" "aedc008b40a30da921bdf1f146986264773856a08b39e871194630352d65752f", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling akarin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[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: `Device`
[INFO] [stdout]  --> src/tun/linux/mod.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::device::{Device, create};
[INFO] [stdout]   |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::os::create`
[INFO] [stdout]   --> src/tun/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub use self::os::create;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::configuration::Configuration`
[INFO] [stdout]   --> src/tun/mod.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub use self::configuration::Configuration;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mem`
[INFO] [stdout]  --> src/akarin/server.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt, io, mem};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/akarin/mod.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn serve(self, mut core: Core, handle: Handle) -> Result<()>;
[INFO] [stdout]    |                    ^^^^^^^^ help: remove `mut` from the parameter: `core`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout]    = note: `#[warn(patterns_in_fns_without_body)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/akarin/mod.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()>;
[INFO] [stdout]    |                      ^^^^^^^^ help: remove `mut` from the parameter: `core`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::error::*`
[INFO] [stdout]  --> src/transport/network.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use common::error::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/common/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / error_chain! {
[INFO] [stdout]  2 | |     errors {
[INFO] [stdout]  3 | |         // Tun
[INFO] [stdout]  4 | |         TunNameTooLong
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/transport/network.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / lazy_static!{
[INFO] [stdout]  9 | |    pub static ref IPV4_HEADER_LEN: usize = mem::size_of::<IPv4Header>();
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]   --> src/transport/network.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / lazy_static!{
[INFO] [stdout]  9 | |    pub static ref IPV4_HEADER_LEN: usize = mem::size_of::<IPv4Header>();
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/akarin/server.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |     crypto: &'a Crypto,
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 28 |     crypto: &'a dyn Crypto,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/akarin/client.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |     crypto: &'a Crypto,
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     crypto: &'a dyn Crypto,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/akarin/server.rs:124:41
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn new<'b>(tun: Device, crypto: &'a Crypto, udp: UdpSocket, configuration: &'b ServerConfiguration) -> Self {
[INFO] [stdout]     |                                         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn new<'b>(tun: Device, crypto: &'a dyn Crypto, udp: UdpSocket, configuration: &'b ServerConfiguration) -> Self {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/akarin/client.rs:24:41
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new<'d>(tun: Device, crypto: &'a Crypto, udp: UdpSocket, configuration: &'d ClientConfiguration) -> Self {
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn new<'d>(tun: Device, crypto: &'a dyn Crypto, udp: UdpSocket, configuration: &'d ClientConfiguration) -> Self {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/crypto/chacha20_poly1305.rs:9:43
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn init_crypto(password: &str) -> Box<Crypto> {
[INFO] [stdout]   |                                           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn init_crypto(password: &str) -> Box<dyn Crypto> {
[INFO] [stdout]   |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/crypto/mod.rs:21:46
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn init(self, password: &str) -> Box<Crypto> {
[INFO] [stdout]    |                                              ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn init(self, password: &str) -> Box<dyn Crypto> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/common/error.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / error_chain! {
[INFO] [stdout]  2 | |     errors {
[INFO] [stdout]  3 | |         // Tun
[INFO] [stdout]  4 | |         TunNameTooLong
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/akarin/server.rs:157:27
[INFO] [stdout]     |
[INFO] [stdout] 157 |             if let Some(&(token, sockaddr)) = self.clients.get(client_id) {}
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sockaddr`
[INFO] [stdout]    --> src/akarin/server.rs:157:34
[INFO] [stdout]     |
[INFO] [stdout] 157 |             if let Some(&(token, sockaddr)) = self.clients.get(client_id) {}
[INFO] [stdout]     |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sockaddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/akarin/server.rs:163:14
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn serve(mut self, mut core: Core, handle: Handle) -> Result<()> {
[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: unused variable: `handle`
[INFO] [stdout]    --> src/akarin/server.rs:163:40
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn serve(mut self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/akarin/client.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stdout]    |                      ----^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `core`
[INFO] [stdout]   --> src/akarin/client.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stdout]    |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> src/akarin/client.rs:39:38
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stdout]    |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `crypto`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let crypto = Ciphers::CHACHA20_POLY1305.init(password);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_crypto`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/akarin/server.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         core.run(self);
[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] 164 |         let _ = core.run(self);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "aedc008b40a30da921bdf1f146986264773856a08b39e871194630352d65752f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aedc008b40a30da921bdf1f146986264773856a08b39e871194630352d65752f", kill_on_drop: false }`
[INFO] [stdout] aedc008b40a30da921bdf1f146986264773856a08b39e871194630352d65752f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5cb3f6690abf3585e889990e7c2a2f0f95424051aa05a49d315d21fb792b1df1
[INFO] running `Command { std: "docker" "start" "-a" "5cb3f6690abf3585e889990e7c2a2f0f95424051aa05a49d315d21fb792b1df1", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Device`
[INFO] [stderr]  --> src/tun/linux/mod.rs:5:24
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub use self::device::{Device, create};
[INFO] [stderr]   |                        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::os::create`
[INFO] [stderr]   --> src/tun/mod.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub use self::os::create;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::configuration::Configuration`
[INFO] [stderr]   --> src/tun/mod.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub use self::configuration::Configuration;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `mem`
[INFO] [stderr]  --> src/akarin/server.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fmt, io, mem};
[INFO] [stderr]   |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/akarin/mod.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn serve(self, mut core: Core, handle: Handle) -> Result<()>;
[INFO] [stderr]    |                    ^^^^^^^^ help: remove `mut` from the parameter: `core`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr]    = note: `#[warn(patterns_in_fns_without_body)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> src/akarin/mod.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()>;
[INFO] [stderr]    |                      ^^^^^^^^ help: remove `mut` from the parameter: `core`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `common::error::*`
[INFO] [stderr]  --> src/transport/network.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use common::error::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/common/error.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr]  1 | / error_chain! {
[INFO] [stderr]  2 | |     errors {
[INFO] [stderr]  3 | |         // Tun
[INFO] [stderr]  4 | |         TunNameTooLong
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stderr]   --> src/transport/network.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr]  8 | / lazy_static!{
[INFO] [stderr]  9 | |    pub static ref IPV4_HEADER_LEN: usize = mem::size_of::<IPv4Header>();
[INFO] [stderr] 10 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/akarin/server.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |     crypto: &'a Crypto,
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 28 |     crypto: &'a dyn Crypto,
[INFO] [stderr]    |                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/akarin/client.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |     crypto: &'a Crypto,
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 15 |     crypto: &'a dyn Crypto,
[INFO] [stderr]    |                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/akarin/server.rs:124:41
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn new<'b>(tun: Device, crypto: &'a Crypto, udp: UdpSocket, configuration: &'b ServerConfiguration) -> Self {
[INFO] [stderr]     |                                         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn new<'b>(tun: Device, crypto: &'a dyn Crypto, udp: UdpSocket, configuration: &'b ServerConfiguration) -> Self {
[INFO] [stderr]     |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/akarin/client.rs:24:41
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn new<'d>(tun: Device, crypto: &'a Crypto, udp: UdpSocket, configuration: &'d ClientConfiguration) -> Self {
[INFO] [stderr]    |                                         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn new<'d>(tun: Device, crypto: &'a dyn Crypto, udp: UdpSocket, configuration: &'d ClientConfiguration) -> Self {
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/crypto/chacha20_poly1305.rs:9:43
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn init_crypto(password: &str) -> Box<Crypto> {
[INFO] [stderr]   |                                           ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn init_crypto(password: &str) -> Box<dyn Crypto> {
[INFO] [stderr]   |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/crypto/mod.rs:21:46
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn init(self, password: &str) -> Box<Crypto> {
[INFO] [stderr]    |                                              ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn init(self, password: &str) -> Box<dyn Crypto> {
[INFO] [stderr]    |                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/common/error.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr]  1 | / error_chain! {
[INFO] [stderr]  2 | |     errors {
[INFO] [stderr]  3 | |         // Tun
[INFO] [stderr]  4 | |         TunNameTooLong
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/akarin/server.rs:157:27
[INFO] [stderr]     |
[INFO] [stderr] 157 |             if let Some(&(token, sockaddr)) = self.clients.get(client_id) {}
[INFO] [stderr]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sockaddr`
[INFO] [stderr]    --> src/akarin/server.rs:157:34
[INFO] [stderr]     |
[INFO] [stderr] 157 |             if let Some(&(token, sockaddr)) = self.clients.get(client_id) {}
[INFO] [stderr]     |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sockaddr`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/akarin/server.rs:163:14
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn serve(mut self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stderr]     |              ----^^^^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handle`
[INFO] [stderr]    --> src/akarin/server.rs:163:40
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn serve(mut self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stderr]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/akarin/client.rs:39:22
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stderr]    |                      ----^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `core`
[INFO] [stderr]   --> src/akarin/client.rs:39:22
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stderr]    |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_core`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `handle`
[INFO] [stderr]   --> src/akarin/client.rs:39:38
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn connect(self, mut core: Core, handle: Handle) -> Result<()> {
[INFO] [stderr]    |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `crypto`
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let crypto = Ciphers::CHACHA20_POLY1305.init(password);
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_crypto`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/akarin/server.rs:164:9
[INFO] [stderr]     |
[INFO] [stderr] 164 |         core.run(self);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let _ = core.run(self);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `akarin` (bin "akarin" test) generated 27 warnings (1 duplicate) (run `cargo fix --bin "akarin" -p akarin --tests` to apply 21 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/akarin-c857918a7ac4ade8)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test crypto::chacha20_poly1305::test::test_encrypt_and_decrypt ... ok
[INFO] [stdout] test transport::network::test::test_ipv4_header ... ok
[INFO] [stderr] error: test failed, to rerun pass `--bin akarin`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/akarin-c857918a7ac4ade8` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "5cb3f6690abf3585e889990e7c2a2f0f95424051aa05a49d315d21fb792b1df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cb3f6690abf3585e889990e7c2a2f0f95424051aa05a49d315d21fb792b1df1", kill_on_drop: false }`
[INFO] [stdout] 5cb3f6690abf3585e889990e7c2a2f0f95424051aa05a49d315d21fb792b1df1
