[INFO] fetching crate flashbang 0.1.0-prealpha...
[INFO] testing flashbang-0.1.0-prealpha against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate flashbang 0.1.0-prealpha into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate flashbang 0.1.0-prealpha on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flashbang 0.1.0-prealpha
[INFO] finished tweaking crates.io crate flashbang 0.1.0-prealpha
[INFO] tweaked toml for crates.io crate flashbang 0.1.0-prealpha written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate flashbang 0.1.0-prealpha 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-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crc-catalog v2.2.0
[INFO] [stderr]   Downloaded ctrlc v3.2.5
[INFO] [stderr]   Downloaded crc v3.0.1
[INFO] [stderr]   Downloaded stun v0.4.4
[INFO] [stderr]   Downloaded webrtc-util v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6071d84c99cd52d26067eaaf878681dc3344cb3ca3939a0868a7ed2e971b68b5
[INFO] running `Command { std: "docker" "start" "-a" "6071d84c99cd52d26067eaaf878681dc3344cb3ca3939a0868a7ed2e971b68b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6071d84c99cd52d26067eaaf878681dc3344cb3ca3939a0868a7ed2e971b68b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6071d84c99cd52d26067eaaf878681dc3344cb3ca3939a0868a7ed2e971b68b5", kill_on_drop: false }`
[INFO] [stdout] 6071d84c99cd52d26067eaaf878681dc3344cb3ca3939a0868a7ed2e971b68b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e56c10d72bfafffd07860546a9986e7f6a9c0bdeb78bb7c5de09f5e73d208c17
[INFO] running `Command { std: "docker" "start" "-a" "e56c10d72bfafffd07860546a9986e7f6a9c0bdeb78bb7c5de09f5e73d208c17", kill_on_drop: false }`
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[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-io v0.3.26
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling async-trait v0.1.63
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[INFO] [stderr]    Compiling tokio v1.24.2
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[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling num_cpus v1.15.0
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[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling block-buffer v0.10.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.6
[INFO] [stderr]    Compiling md-5 v0.10.5
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling sha2 v0.10.6
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling futures-macro v0.3.26
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling futures-executor v0.3.26
[INFO] [stderr]    Compiling futures v0.3.26
[INFO] [stderr]    Compiling flashbang v0.1.0-prealpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `Mutex`, `Waker`
[INFO] [stdout]  --> src/server/runtime/mod.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, sync::{Arc, Mutex, atomic::AtomicBool}, task::{Poll, Waker}, time::{Instant, Duration}, net::SocketAddr};
[INFO] [stdout]   |                           ^^^^^                                    ^^^^^          ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> src/server/runtime/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `pin::Pin`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:1:59
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, net::{SocketAddr, IpAddr, Ipv6Addr}, sync::{Arc, atomic::{AtomicBool, Ordering}}, pin::Pin};
[INFO] [stdout]   |                                                           ^^^           ^^^^^^^^^^              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{Bytes, BytesMut};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpSocket`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::{net::{TcpListener, TcpStream, TcpSocket, UdpSocket}, time::{timeout, Duration}, io::{AsyncReadExt, AsyncWriteExt}};
[INFO] [stdout]   |                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MessageMeta`
[INFO] [stdout]    --> src/message/attributes/mod.rs:124:34
[INFO] [stdout]     |
[INFO] [stdout] 124 | use super::meta::{AttributeMeta, MessageMeta};
[INFO] [stdout]     |                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/message/incoming.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |             software: todo!(),
[INFO] [stdout]    |                       ------- any code following this expression is unreachable
[INFO] [stdout] 33 |             fingerprint: todo!(),
[INFO] [stdout]    |                          ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]  --> src/client/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let addr = match addr.to_socket_addrs()?.next() {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]  --> src/client/mod.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn connect(socket: UdpSocket, addr: impl ToSocketAddrs) -> Result<(), Error> {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runner`
[INFO] [stdout]   --> src/server/runtime/tokio_server.rs:51:24
[INFO] [stdout]    |
[INFO] [stdout] 51 |     async fn serve_udp(runner: ServerRunner) -> io::Result<()> {
[INFO] [stdout]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_runner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/server/runtime/tokio_server.rs:113:42
[INFO] [stdout]     |
[INFO] [stdout] 113 |     async fn send(&mut self, buf: &[u8], addr: SocketAddr) -> io::Result<()> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/message/methods/binding.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn encode(&self, buf: &mut [u8], offset: &mut usize) {}
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]   --> src/message/methods/binding.rs:11:38
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn encode(&self, buf: &mut [u8], offset: &mut usize) {}
[INFO] [stdout]    |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta`
[INFO] [stdout]   --> src/message/methods/binding.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn decode(meta: &MessageMeta) -> Self {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `userhash` is assigned to, but never used
[INFO] [stdout]   --> src/message/authorization.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut userhash = None;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_userhash` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `userhash` is never read
[INFO] [stdout]   --> src/message/authorization.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     userhash = Some(Userhash::decode(buf, attr));
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `software` is assigned to, but never used
[INFO] [stdout]   --> src/message/incoming.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut software = None;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_software` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `software` is never read
[INFO] [stdout]   --> src/message/incoming.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |                     software = Some(Software::decode(buf, &attr));
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `conn` is never read
[INFO] [stdout]   --> src/server/runtime/mod.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct ServerProcessor<T: ServerConn> {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 36 |     conn: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.61s
[INFO] running `Command { std: "docker" "inspect" "e56c10d72bfafffd07860546a9986e7f6a9c0bdeb78bb7c5de09f5e73d208c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e56c10d72bfafffd07860546a9986e7f6a9c0bdeb78bb7c5de09f5e73d208c17", kill_on_drop: false }`
[INFO] [stdout] e56c10d72bfafffd07860546a9986e7f6a9c0bdeb78bb7c5de09f5e73d208c17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6b2581af7e84d51ff3f1595dd71414cc03a33b38d809c6295aab4fcef37ef96
[INFO] running `Command { std: "docker" "start" "-a" "a6b2581af7e84d51ff3f1595dd71414cc03a33b38d809c6295aab4fcef37ef96", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling unicode-bidi v0.3.10
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling spin v0.5.2
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[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling crc-catalog v2.2.0
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling digest v0.10.6
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling crc v3.0.1
[INFO] [stderr]    Compiling md-5 v0.10.5
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling sha2 v0.10.6
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling webrtc-util v0.7.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling tokio v1.24.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling flashbang v0.1.0-prealpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `Mutex`, `Waker`
[INFO] [stdout]  --> src/server/runtime/mod.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, sync::{Arc, Mutex, atomic::AtomicBool}, task::{Poll, Waker}, time::{Instant, Duration}, net::SocketAddr};
[INFO] [stdout]   |                           ^^^^^                                    ^^^^^          ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> src/server/runtime/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `pin::Pin`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:1:59
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, net::{SocketAddr, IpAddr, Ipv6Addr}, sync::{Arc, atomic::{AtomicBool, Ordering}}, pin::Pin};
[INFO] [stdout]   |                                                           ^^^           ^^^^^^^^^^              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{Bytes, BytesMut};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpSocket`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::{net::{TcpListener, TcpStream, TcpSocket, UdpSocket}, time::{timeout, Duration}, io::{AsyncReadExt, AsyncWriteExt}};
[INFO] [stdout]   |                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MessageMeta`
[INFO] [stdout]    --> src/message/attributes/mod.rs:124:34
[INFO] [stdout]     |
[INFO] [stdout] 124 | use super::meta::{AttributeMeta, MessageMeta};
[INFO] [stdout]     |                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/message/incoming.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |             software: todo!(),
[INFO] [stdout]    |                       ------- any code following this expression is unreachable
[INFO] [stdout] 33 |             fingerprint: todo!(),
[INFO] [stdout]    |                          ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]  --> src/client/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let addr = match addr.to_socket_addrs()?.next() {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]  --> src/client/mod.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn connect(socket: UdpSocket, addr: impl ToSocketAddrs) -> Result<(), Error> {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runner`
[INFO] [stdout]   --> src/server/runtime/tokio_server.rs:51:24
[INFO] [stdout]    |
[INFO] [stdout] 51 |     async fn serve_udp(runner: ServerRunner) -> io::Result<()> {
[INFO] [stdout]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_runner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/server/runtime/tokio_server.rs:113:42
[INFO] [stdout]     |
[INFO] [stdout] 113 |     async fn send(&mut self, buf: &[u8], addr: SocketAddr) -> io::Result<()> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/message/methods/binding.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn encode(&self, buf: &mut [u8], offset: &mut usize) {}
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]   --> src/message/methods/binding.rs:11:38
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn encode(&self, buf: &mut [u8], offset: &mut usize) {}
[INFO] [stdout]    |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta`
[INFO] [stdout]   --> src/message/methods/binding.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn decode(meta: &MessageMeta) -> Self {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `userhash` is assigned to, but never used
[INFO] [stdout]   --> src/message/authorization.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut userhash = None;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_userhash` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `userhash` is never read
[INFO] [stdout]   --> src/message/authorization.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     userhash = Some(Userhash::decode(buf, attr));
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `software` is assigned to, but never used
[INFO] [stdout]   --> src/message/incoming.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut software = None;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_software` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `software` is never read
[INFO] [stdout]   --> src/message/incoming.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |                     software = Some(Software::decode(buf, &attr));
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `conn` is never read
[INFO] [stdout]   --> src/server/runtime/mod.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct ServerProcessor<T: ServerConn> {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 36 |     conn: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stun v0.4.4
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`, `Mutex`, `Waker`
[INFO] [stdout]  --> src/server/runtime/mod.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, sync::{Arc, Mutex, atomic::AtomicBool}, task::{Poll, Waker}, time::{Instant, Duration}, net::SocketAddr};
[INFO] [stdout]   |                           ^^^^^                                    ^^^^^          ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> src/server/runtime/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `AtomicBool`, `pin::Pin`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:1:59
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, net::{SocketAddr, IpAddr, Ipv6Addr}, sync::{Arc, atomic::{AtomicBool, Ordering}}, pin::Pin};
[INFO] [stdout]   |                                                           ^^^           ^^^^^^^^^^              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BytesMut`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bytes::{Bytes, BytesMut};
[INFO] [stdout]   |                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpSocket`
[INFO] [stdout]  --> src/server/runtime/tokio_server.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::{net::{TcpListener, TcpStream, TcpSocket, UdpSocket}, time::{timeout, Duration}, io::{AsyncReadExt, AsyncWriteExt}};
[INFO] [stdout]   |                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MessageMeta`
[INFO] [stdout]    --> src/message/attributes/mod.rs:124:34
[INFO] [stdout]     |
[INFO] [stdout] 124 | use super::meta::{AttributeMeta, MessageMeta};
[INFO] [stdout]     |                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/message/incoming.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |             software: todo!(),
[INFO] [stdout]    |                       ------- any code following this expression is unreachable
[INFO] [stdout] 33 |             fingerprint: todo!(),
[INFO] [stdout]    |                          ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]  --> src/client/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let addr = match addr.to_socket_addrs()?.next() {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]  --> src/client/mod.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn connect(socket: UdpSocket, addr: impl ToSocketAddrs) -> Result<(), Error> {
[INFO] [stdout]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `runner`
[INFO] [stdout]   --> src/server/runtime/tokio_server.rs:51:24
[INFO] [stdout]    |
[INFO] [stdout] 51 |     async fn serve_udp(runner: ServerRunner) -> io::Result<()> {
[INFO] [stdout]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_runner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/server/runtime/tokio_server.rs:113:42
[INFO] [stdout]     |
[INFO] [stdout] 113 |     async fn send(&mut self, buf: &[u8], addr: SocketAddr) -> io::Result<()> {
[INFO] [stdout]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/message/methods/binding.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn encode(&self, buf: &mut [u8], offset: &mut usize) {}
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]   --> src/message/methods/binding.rs:11:38
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn encode(&self, buf: &mut [u8], offset: &mut usize) {}
[INFO] [stdout]    |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta`
[INFO] [stdout]   --> src/message/methods/binding.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn decode(meta: &MessageMeta) -> Self {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `userhash` is assigned to, but never used
[INFO] [stdout]   --> src/message/authorization.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut userhash = None;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_userhash` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `userhash` is never read
[INFO] [stdout]   --> src/message/authorization.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     userhash = Some(Userhash::decode(buf, attr));
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `software` is assigned to, but never used
[INFO] [stdout]   --> src/message/incoming.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut software = None;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_software` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `software` is never read
[INFO] [stdout]   --> src/message/incoming.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |                     software = Some(Software::decode(buf, &attr));
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `conn` is never read
[INFO] [stdout]   --> src/server/runtime/mod.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct ServerProcessor<T: ServerConn> {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 36 |     conn: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.12s
[INFO] running `Command { std: "docker" "inspect" "a6b2581af7e84d51ff3f1595dd71414cc03a33b38d809c6295aab4fcef37ef96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6b2581af7e84d51ff3f1595dd71414cc03a33b38d809c6295aab4fcef37ef96", kill_on_drop: false }`
[INFO] [stdout] a6b2581af7e84d51ff3f1595dd71414cc03a33b38d809c6295aab4fcef37ef96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d5569c8ea75d5e8b5b76b6500726201c3deb6369ab54db11d44a8308b4f05fdc
[INFO] running `Command { std: "docker" "start" "-a" "d5569c8ea75d5e8b5b76b6500726201c3deb6369ab54db11d44a8308b4f05fdc", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`, `Mutex`, `Waker`
[INFO] [stderr]  --> src/server/runtime/mod.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{io, sync::{Arc, Mutex, atomic::AtomicBool}, task::{Poll, Waker}, time::{Instant, Duration}, net::SocketAddr};
[INFO] [stderr]   |                           ^^^^^                                    ^^^^^          ^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::future::Future`
[INFO] [stderr]  --> src/server/runtime/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::future::Future;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `AtomicBool`, `pin::Pin`
[INFO] [stderr]  --> src/server/runtime/tokio_server.rs:1:59
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{io, net::{SocketAddr, IpAddr, Ipv6Addr}, sync::{Arc, atomic::{AtomicBool, Ordering}}, pin::Pin};
[INFO] [stderr]   |                                                           ^^^           ^^^^^^^^^^              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BytesMut`
[INFO] [stderr]  --> src/server/runtime/tokio_server.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use bytes::{Bytes, BytesMut};
[INFO] [stderr]   |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TcpSocket`
[INFO] [stderr]  --> src/server/runtime/tokio_server.rs:5:43
[INFO] [stderr]   |
[INFO] [stderr] 5 | use tokio::{net::{TcpListener, TcpStream, TcpSocket, UdpSocket}, time::{timeout, Duration}, io::{AsyncReadExt, AsyncWriteExt}};
[INFO] [stderr]   |                                           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `MessageMeta`
[INFO] [stderr]    --> src/message/attributes/mod.rs:124:34
[INFO] [stderr]     |
[INFO] [stderr] 124 | use super::meta::{AttributeMeta, MessageMeta};
[INFO] [stderr]     |                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/message/incoming.rs:33:26
[INFO] [stderr]    |
[INFO] [stderr] 32 |             software: todo!(),
[INFO] [stderr]    |                       ------- any code following this expression is unreachable
[INFO] [stderr] 33 |             fingerprint: todo!(),
[INFO] [stderr]    |                          ^^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]  --> src/client/mod.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let addr = match addr.to_socket_addrs()?.next() {
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `socket`
[INFO] [stderr]  --> src/client/mod.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn connect(socket: UdpSocket, addr: impl ToSocketAddrs) -> Result<(), Error> {
[INFO] [stderr]   |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `runner`
[INFO] [stderr]   --> src/server/runtime/tokio_server.rs:51:24
[INFO] [stderr]    |
[INFO] [stderr] 51 |     async fn serve_udp(runner: ServerRunner) -> io::Result<()> {
[INFO] [stderr]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_runner`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]    --> src/server/runtime/tokio_server.rs:113:42
[INFO] [stderr]     |
[INFO] [stderr] 113 |     async fn send(&mut self, buf: &[u8], addr: SocketAddr) -> io::Result<()> {
[INFO] [stderr]     |                                          ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/message/methods/binding.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn encode(&self, buf: &mut [u8], offset: &mut usize) {}
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> src/message/methods/binding.rs:11:38
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn encode(&self, buf: &mut [u8], offset: &mut usize) {}
[INFO] [stderr]    |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `meta`
[INFO] [stderr]   --> src/message/methods/binding.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn decode(meta: &MessageMeta) -> Self {
[INFO] [stderr]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `userhash` is assigned to, but never used
[INFO] [stderr]   --> src/message/authorization.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let mut userhash = None;
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_userhash` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `userhash` is never read
[INFO] [stderr]   --> src/message/authorization.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |                     userhash = Some(Userhash::decode(buf, attr));
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `software` is assigned to, but never used
[INFO] [stderr]   --> src/message/incoming.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut software = None;
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_software` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `software` is never read
[INFO] [stderr]   --> src/message/incoming.rs:23:21
[INFO] [stderr]    |
[INFO] [stderr] 23 |                     software = Some(Software::decode(buf, &attr));
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: field `conn` is never read
[INFO] [stderr]   --> src/server/runtime/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct ServerProcessor<T: ServerConn> {
[INFO] [stderr]    |            --------------- field in this struct
[INFO] [stderr] 36 |     conn: T,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `flashbang` (lib) generated 19 warnings (run `cargo fix --lib -p flashbang` to apply 13 suggestions)
[INFO] [stderr] warning: `flashbang` (lib test) generated 19 warnings (19 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flashbang-9b1319fae45d81af)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test message::tests::binding_request ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/sample_request.rs (/opt/rustwide/target/debug/deps/sample_request-ee04d6174977ced2)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test encode ... ok
[INFO] [stdout] test decode ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- decode stdout ----
[INFO] [stdout] thread 'decode' panicked at 'not yet implemented', src/message/incoming.rs:32:23
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55f60c1b192a - std::backtrace_rs::backtrace::libunwind::trace::h2f05d0192276a8f6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x55f60c1b192a - std::backtrace_rs::backtrace::trace_unsynchronized::hedc23dff7a1af150
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55f60c1b192a - std::sys_common::backtrace::_print_fmt::h17541ef7592f3ce2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x55f60c1b192a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20f75df5ab0c0792
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55f60c1d558f - core::fmt::write::h78109e6f466b3af6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/fmt/mod.rs:1254:17
[INFO] [stdout]    5:     0x55f60c1aec75 - std::io::Write::write_fmt::hd24bfb68a1b35a25
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/io/mod.rs:1698:15
[INFO] [stdout]    6:     0x55f60c1b16f5 - std::sys_common::backtrace::_print::h8dac57a9f8fbf9a5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x55f60c1b16f5 - std::sys_common::backtrace::print::hf9ecbf41d1aa712f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x55f60c1b33ae - std::panicking::default_hook::{{closure}}::h04c07acfc84ca028
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:269:22
[INFO] [stdout]    9:     0x55f60c1b30e1 - std::panicking::default_hook::h01f6bb23e1eceb2c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:285:9
[INFO] [stdout]   10:     0x55f60c14cc2b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h87fe9f7b2fd49e4c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   11:     0x55f60c14cc2b - test::test_main::{{closure}}::he94d679243a7531b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x55f60c1b3a94 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f2d6d8b14c4769f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   13:     0x55f60c1b3a94 - std::panicking::rust_panic_with_hook::h2bb3722bbaf2f6df
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:695:13
[INFO] [stdout]   14:     0x55f60c1b37c2 - std::panicking::begin_panic_handler::{{closure}}::h91bc7f36a4be011b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:580:13
[INFO] [stdout]   15:     0x55f60c1b1d96 - std::sys_common::backtrace::__rust_end_short_backtrace::h8b3d3717114f9e59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x55f60c1b3562 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:578:5
[INFO] [stdout]   17:     0x55f60c114fe3 - core::panicking::panic_fmt::hfd368e3fbdabea26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:67:14
[INFO] [stdout]   18:     0x55f60c11507d - core::panicking::panic::h3f9042d09bd0bf2e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:117:5
[INFO] [stdout]   19:     0x55f60c164fb0 - flashbang::message::incoming::IncomingMessage::decode::h827fa54e43fe8014
[INFO] [stdout]                                at /opt/rustwide/workdir/src/message/incoming.rs:32:23
[INFO] [stdout]   20:     0x55f60c11780e - sample_request::decode::h1dfca0b2ce3e19ed
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/sample_request.rs:107:18
[INFO] [stdout]   21:     0x55f60c1173a7 - sample_request::decode::{{closure}}::h11fd696e32ced336
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/sample_request.rs:86:13
[INFO] [stdout]   22:     0x55f60c1169a5 - core::ops::function::FnOnce::call_once::h45934417ee92d31d
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x55f60c151aff - core::ops::function::FnOnce::call_once::ha6a70e79f7481a7e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x55f60c151aff - test::__rust_begin_short_backtrace::hce33033019b61e69
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:655:18
[INFO] [stdout]   25:     0x55f60c11f2ec - test::run_test::{{closure}}::h858d3528838ae3e5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:646:30
[INFO] [stdout]   26:     0x55f60c11f2ec - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8ac2b00f01ae79e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x55f60c150bd6 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h8093d25b522725ef
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   28:     0x55f60c150bd6 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5c334c204e4a3913
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   29:     0x55f60c150bd6 - std::panicking::try::do_call::ha8b740c7b9478074
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   30:     0x55f60c150bd6 - std::panicking::try::h5d34f63d0e41b64e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   31:     0x55f60c150bd6 - std::panic::catch_unwind::hcfbb511e1aa7fc67
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   32:     0x55f60c150bd6 - test::run_test_in_process::h9abda90f802eaf21
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:678:27
[INFO] [stdout]   33:     0x55f60c150bd6 - test::run_test::run_test_inner::{{closure}}::h0f058de91f6c6edf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:572:39
[INFO] [stdout]   34:     0x55f60c119af5 - test::run_test::run_test_inner::{{closure}}::h5ca48a4c59c6c1fb
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:599:37
[INFO] [stdout]   35:     0x55f60c119af5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h32bd51e1495d4a33
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   36:     0x55f60c11f031 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc086fae9b128b2db
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:526:17
[INFO] [stdout]   37:     0x55f60c11f031 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb66571888d270d43
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   38:     0x55f60c11f031 - std::panicking::try::do_call::h4fa2ef4f6e51fecf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   39:     0x55f60c11f031 - std::panicking::try::h1e9e22b8584489b5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   40:     0x55f60c11f031 - std::panic::catch_unwind::h44698a3de0e0769e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   41:     0x55f60c11f031 - std::thread::Builder::spawn_unchecked_::{{closure}}::h50153abde3fe239e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:525:30
[INFO] [stdout]   42:     0x55f60c11f031 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe5bbf6f38394364
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x55f60c1b7f65 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0d83cb2920a49046
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   44:     0x55f60c1b7f65 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe0a008aa7d9ef59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   45:     0x55f60c1b7f65 - std::sys::unix::thread::Thread::new::thread_start::h3a466996bdf6b1f9
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   46:     0x7ff0333f3b43 - <unknown>
[INFO] [stdout]   47:     0x7ff033484bb4 - __clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     decode
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test sample_request`
[INFO] running `Command { std: "docker" "inspect" "d5569c8ea75d5e8b5b76b6500726201c3deb6369ab54db11d44a8308b4f05fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5569c8ea75d5e8b5b76b6500726201c3deb6369ab54db11d44a8308b4f05fdc", kill_on_drop: false }`
[INFO] [stdout] d5569c8ea75d5e8b5b76b6500726201c3deb6369ab54db11d44a8308b4f05fdc
