[INFO] cloning repository https://github.com/bramvdbogaerde/tunneler-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bramvdbogaerde/tunneler-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbramvdbogaerde%2Ftunneler-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbramvdbogaerde%2Ftunneler-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec3b2bbebc750693ac6c72e26566169e25f973c0
[INFO] testing bramvdbogaerde/tunneler-rs against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbramvdbogaerde%2Ftunneler-rs" "/workspace/builds/worker-72/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-72/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bramvdbogaerde/tunneler-rs on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bramvdbogaerde/tunneler-rs
[INFO] finished tweaking git repo https://github.com/bramvdbogaerde/tunneler-rs
[INFO] tweaked toml for git repo https://github.com/bramvdbogaerde/tunneler-rs written to /workspace/builds/worker-72/source/Cargo.toml
[INFO] crate git repo https://github.com/bramvdbogaerde/tunneler-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5385f9b025c5a6ab20eccc6dc04973f0f54e8bcec255452076da370efa99dfc0
[INFO] running `Command { std: "docker" "start" "-a" "5385f9b025c5a6ab20eccc6dc04973f0f54e8bcec255452076da370efa99dfc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5385f9b025c5a6ab20eccc6dc04973f0f54e8bcec255452076da370efa99dfc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5385f9b025c5a6ab20eccc6dc04973f0f54e8bcec255452076da370efa99dfc0", kill_on_drop: false }`
[INFO] [stdout] 5385f9b025c5a6ab20eccc6dc04973f0f54e8bcec255452076da370efa99dfc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 709daeb89e80462f64bed156cfedc61399b85874ee75de599420979acdd527e7
[INFO] running `Command { std: "docker" "start" "-a" "709daeb89e80462f64bed156cfedc61399b85874ee75de599420979acdd527e7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling futures-core v0.3.9
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling futures-sink v0.3.9
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling futures-io v0.3.9
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling futures-task v0.3.9
[INFO] [stderr]    Compiling futures-channel v0.3.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.9
[INFO] [stderr]    Compiling futures-util v0.3.9
[INFO] [stderr]    Compiling tokio-stream v0.1.2
[INFO] [stderr]    Compiling futures-executor v0.3.9
[INFO] [stderr]    Compiling futures v0.3.9
[INFO] [stderr]    Compiling tokio-util v0.6.1
[INFO] [stderr]    Compiling tunneler-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `proxy`
[INFO] [stdout]   --> src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |             let proxy = server::ProxyServer::new(3000, "0.0.0.0", tx);
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_proxy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `HttpRequest`
[INFO] [stdout]  --> src/http_parser.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct HttpRequest {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/http_parser.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn empty() -> HttpRequest {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/http_parser.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub async fn parse(stream: &mut (impl AsyncRead + Unpin)) -> io::Result<HttpRequest> {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ManagerError`
[INFO] [stdout]   --> src/server/manager.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum ManagerError {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]   --> src/server/manager.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     sender: Sender<Request>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `submit_request`
[INFO] [stdout]   --> src/server/manager.rs:48:18
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub async fn submit_request(&self, request: Request) -> Result<(), ManagerError> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connections`
[INFO] [stdout]   --> src/server/manager.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     connections: Mutex<HashMap<String, Connection>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `requests_receiver`
[INFO] [stdout]   --> src/server/manager.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     requests_receiver: Receiver<Request>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]   --> src/server/manager.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     inner: Arc<ManagerInner>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `port`
[INFO] [stdout]  --> src/server/proxy.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     port: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `host`
[INFO] [stdout]   --> src/server/proxy.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     host: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `request_sender`
[INFO] [stdout]   --> src/server/proxy.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     request_sender: ManagerRef,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `process`
[INFO] [stdout]   --> src/server/proxy.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     async fn process(manager: ManagerRef, mut socket: TcpStream) -> std::io::Result<()> {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `listen`
[INFO] [stdout]   --> src/server/proxy.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub async fn listen(&self) -> std::io::Result<()> {
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequestProxy`
[INFO] [stdout]    --> src/protocol.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | /     RequestProxy {
[INFO] [stdout] 112 | |         /// The name of the custom subdomain
[INFO] [stdout] 113 | |         custom_subdomain: Option<String>,
[INFO] [stdout] 114 | |     },
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InitializeConnection`
[INFO] [stdout]    --> src/protocol.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 | /     InitializeConnection {
[INFO] [stdout] 123 | |         /// The id of the stream that the server is going to use to send forwarded TCP packets,
[INFO] [stdout] 124 | |         /// and which the client should use to reply.
[INFO] [stdout] 125 | |         stream_id: u64,
[INFO] [stdout] 126 | |     },
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CloseConnection`
[INFO] [stdout]    --> src/protocol.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 | /     CloseConnection {
[INFO] [stdout] 141 | |         ///  The id of the stream that shall be closed on the server or client.
[INFO] [stdout] 142 | |         stream_id: u64,
[INFO] [stdout] 143 | |     },
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OverlayedPacket`
[INFO] [stdout]    --> src/protocol.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 |     OverlayedPacket { contents: Vec<u8> },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]    --> src/protocol.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn parse(bytes: Vec<u8>) -> Result<Packet, io::Error> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/protocol.rs:218:12
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn serialize(&self) -> Result<Vec<u8>, io::Error> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 24s
[INFO] running `Command { std: "docker" "inspect" "709daeb89e80462f64bed156cfedc61399b85874ee75de599420979acdd527e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709daeb89e80462f64bed156cfedc61399b85874ee75de599420979acdd527e7", kill_on_drop: false }`
[INFO] [stdout] 709daeb89e80462f64bed156cfedc61399b85874ee75de599420979acdd527e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2167cc2c4528714fbe777bb41ae8ee9142db217e7f55943bf9c9709d75349755
[INFO] running `Command { std: "docker" "start" "-a" "2167cc2c4528714fbe777bb41ae8ee9142db217e7f55943bf9c9709d75349755", kill_on_drop: false }`
[INFO] [stderr]    Compiling tunneler-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `proxy`
[INFO] [stdout]   --> src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |             let proxy = server::ProxyServer::new(3000, "0.0.0.0", tx);
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_proxy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `HttpRequest`
[INFO] [stdout]  --> src/http_parser.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct HttpRequest {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/http_parser.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn empty() -> HttpRequest {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/http_parser.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub async fn parse(stream: &mut (impl AsyncRead + Unpin)) -> io::Result<HttpRequest> {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ManagerError`
[INFO] [stdout]   --> src/server/manager.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum ManagerError {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]   --> src/server/manager.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     sender: Sender<Request>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `submit_request`
[INFO] [stdout]   --> src/server/manager.rs:48:18
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub async fn submit_request(&self, request: Request) -> Result<(), ManagerError> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connections`
[INFO] [stdout]   --> src/server/manager.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     connections: Mutex<HashMap<String, Connection>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `requests_receiver`
[INFO] [stdout]   --> src/server/manager.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     requests_receiver: Receiver<Request>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]   --> src/server/manager.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     inner: Arc<ManagerInner>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `port`
[INFO] [stdout]  --> src/server/proxy.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     port: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `host`
[INFO] [stdout]   --> src/server/proxy.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     host: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `request_sender`
[INFO] [stdout]   --> src/server/proxy.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     request_sender: ManagerRef,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `process`
[INFO] [stdout]   --> src/server/proxy.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     async fn process(manager: ManagerRef, mut socket: TcpStream) -> std::io::Result<()> {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `listen`
[INFO] [stdout]   --> src/server/proxy.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub async fn listen(&self) -> std::io::Result<()> {
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "2167cc2c4528714fbe777bb41ae8ee9142db217e7f55943bf9c9709d75349755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2167cc2c4528714fbe777bb41ae8ee9142db217e7f55943bf9c9709d75349755", kill_on_drop: false }`
[INFO] [stdout] 2167cc2c4528714fbe777bb41ae8ee9142db217e7f55943bf9c9709d75349755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a4ddc007ee4be28b18ef8bd7eb49bf9e29683ae18ec60265294c1e1ece086a79
[INFO] running `Command { std: "docker" "start" "-a" "a4ddc007ee4be28b18ef8bd7eb49bf9e29683ae18ec60265294c1e1ece086a79", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `proxy`
[INFO] [stdout] running 4 tests
[INFO] [stderr]   --> src/main.rs:19:17
[INFO] [stdout] test protocol::tests::test_close_connection ... ok
[INFO] [stderr]    |
[INFO] [stdout] test protocol::tests::test_request_proxy ... ok
[INFO] [stderr] 19 |             let proxy = server::ProxyServer::new(3000, "0.0.0.0", tx);
[INFO] [stdout] test protocol::tests::test_initialize_connection ... ok
[INFO] [stderr]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_proxy`
[INFO] [stdout] test protocol::tests::test_overlayed_packet ... ok
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: struct is never constructed: `HttpRequest`
[INFO] [stderr]  --> src/http_parser.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct HttpRequest {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `empty`
[INFO] [stderr]   --> src/http_parser.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn empty() -> HttpRequest {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]   --> src/http_parser.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub async fn parse(stream: &mut (impl AsyncRead + Unpin)) -> io::Result<HttpRequest> {
[INFO] [stderr]    |                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ManagerError`
[INFO] [stderr]   --> src/server/manager.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub enum ManagerError {
[INFO] [stderr]    |          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sender`
[INFO] [stderr]   --> src/server/manager.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     sender: Sender<Request>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `submit_request`
[INFO] [stderr]   --> src/server/manager.rs:48:18
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub async fn submit_request(&self, request: Request) -> Result<(), ManagerError> {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `connections`
[INFO] [stderr]   --> src/server/manager.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     connections: Mutex<HashMap<String, Connection>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `requests_receiver`
[INFO] [stderr]   --> src/server/manager.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     requests_receiver: Receiver<Request>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `inner`
[INFO] [stderr]   --> src/server/manager.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     inner: Arc<ManagerInner>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `port`
[INFO] [stderr]  --> src/server/proxy.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     port: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `host`
[INFO] [stderr]   --> src/server/proxy.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     host: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `request_sender`
[INFO] [stderr]   --> src/server/proxy.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     request_sender: ManagerRef,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `process`
[INFO] [stderr]   --> src/server/proxy.rs:23:14
[INFO] [stderr]    |
[INFO] [stderr] 23 |     async fn process(manager: ManagerRef, mut socket: TcpStream) -> std::io::Result<()> {
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `listen`
[INFO] [stderr]   --> src/server/proxy.rs:50:18
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub async fn listen(&self) -> std::io::Result<()> {
[INFO] [stderr]    |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tunneler-rs` (bin "tunneler-rs" test) generated 15 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tunneler_rs-abac843de957e3cf)
[INFO] running `Command { std: "docker" "inspect" "a4ddc007ee4be28b18ef8bd7eb49bf9e29683ae18ec60265294c1e1ece086a79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4ddc007ee4be28b18ef8bd7eb49bf9e29683ae18ec60265294c1e1ece086a79", kill_on_drop: false }`
[INFO] [stdout] a4ddc007ee4be28b18ef8bd7eb49bf9e29683ae18ec60265294c1e1ece086a79