[INFO] fetching crate sozu-lib 0.12.0...
[INFO] checking sozu-lib-0.12.0 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate sozu-lib 0.12.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate sozu-lib 0.12.0 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sozu-lib 0.12.0
[INFO] finished tweaking crates.io crate sozu-lib 0.12.0
[INFO] tweaked toml for crates.io crate sozu-lib 0.12.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate sozu-lib 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tiny_http v0.8.1
[INFO] [stderr]   Downloaded rusty_ulid v0.10.1
[INFO] [stderr]   Downloaded hdrhistogram v7.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01a7e5e1a52b37c8e20dc563a14e1e779086e378ad226b86e5292bd4e3e87bde
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "01a7e5e1a52b37c8e20dc563a14e1e779086e378ad226b86e5292bd4e3e87bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01a7e5e1a52b37c8e20dc563a14e1e779086e378ad226b86e5292bd4e3e87bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01a7e5e1a52b37c8e20dc563a14e1e779086e378ad226b86e5292bd4e3e87bde", kill_on_drop: false }`
[INFO] [stdout] 01a7e5e1a52b37c8e20dc563a14e1e779086e378ad226b86e5292bd4e3e87bde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fe9e320a5648c5a5455fb2aef2a5afba992ebce8957313ca17d254d8a49d7e9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4fe9e320a5648c5a5455fb2aef2a5afba992ebce8957313ca17d254d8a49d7e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
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[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
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[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking ureq v2.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking sozu-command-lib v0.12.0
[INFO] [stderr]     Checking sozu-lib v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]  --> src/buffer_queue.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/protocol/http/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]  --> src/protocol/pipe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]  --> src/protocol/proxy_protocol/relay.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]  --> src/protocol/proxy_protocol/send.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/protocol/proxy_protocol/expect.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/http.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/tcp.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/server.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/https_rustls/configuration.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/https_rustls/session.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]  --> src/buffer_queue.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/protocol/http/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]     --> src/protocol/http/mod.rs:1537:7
[INFO] [stdout]      |
[INFO] [stdout] 1537 |   use super::*;
[INFO] [stdout]      |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]  --> src/protocol/pipe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]  --> src/protocol/proxy_protocol/relay.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]  --> src/protocol/proxy_protocol/send.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/protocol/proxy_protocol/expect.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/http.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/tcp.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/tcp.rs:1252:41
[INFO] [stdout]      |
[INFO] [stdout] 1252 |       let mut sessions: Slab<Rc<RefCell<ProxySessionCast>>,SessionToken> = Slab::with_capacity(max_buffers);
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProxySessionCast`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/server.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/https_rustls/configuration.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sozu_command::buffer::fixed::Buffer`
[INFO] [stdout]   --> src/https_rustls/session.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use sozu_command::buffer::fixed::Buffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/https_rustls/session.rs:808:7
[INFO] [stdout]     |
[INFO] [stdout] 808 |   use super::*;
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]     --> src/tcp.rs:1134:49
[INFO] [stdout]      |
[INFO] [stdout] 1134 |   use std::sync::atomic::{AtomicBool, Ordering, ATOMIC_BOOL_INIT};
[INFO] [stdout]      |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred
[INFO] [stdout]     --> src/tcp.rs:1139:38
[INFO] [stdout]      |
[INFO] [stdout] 1139 |   static TEST_FINISHED: AtomicBool = ATOMIC_BOOL_INIT;
[INFO] [stdout]      |                                      ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicBool::new(false)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]    --> src/lib.rs:634:9
[INFO] [stdout]     |
[INFO] [stdout] 634 |     let prev = self.wait_time;
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/metrics/network_drain.rs:68:31
[INFO] [stdout]    |
[INFO] [stdout] 68 |     self.app_data.retain(|ref key, ref value| value.updated || now.duration_since(value.last_sent) < Duration::new(600, 00));
[INFO] [stdout]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/metrics/network_drain.rs:69:35
[INFO] [stdout]    |
[INFO] [stdout] 69 |     self.backend_data.retain(|ref key, ref value| value.updated || now.duration_since(value.last_sent) < Duration::new(600, 00));
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> src/metrics/local_drain.rs:88:30
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(app_id: String, h: Histogram<u32>) -> BackendMetrics {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/metrics/writer.rs:182:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     for i in 0..(sent as usize) {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `before`
[INFO] [stdout]    --> src/pool.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let before = self.inner.position;
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_before`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `before`
[INFO] [stdout]    --> src/pool.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let before = self.inner.end;
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_before`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/pool.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let pos = self.inner.position;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end`
[INFO] [stdout]    --> src/pool.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let end = self.inner.end;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/socket.rs:32:40
[INFO] [stdout]    |
[INFO] [stdout] 32 |   fn socket_write_vectored(&mut self,  buf: &[&iovec::IoVec]) -> (usize, SocketResult) {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sz`
[INFO] [stdout]    --> src/socket.rs:244:12
[INFO] [stdout]     |
[INFO] [stdout] 244 |         Ok(sz) => {},
[INFO] [stdout]     |            ^^ help: if this is intentional, prefix it with an underscore: `_sz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sent_size` is assigned to, but never used
[INFO] [stdout]    --> src/socket.rs:301:13
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let mut sent_size     = 0usize;
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_sent_size` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `public_address`
[INFO] [stdout]    --> src/protocol/http/mod.rs:206:38
[INFO] [stdout]     |
[INFO] [stdout] 206 |   pub fn added_request_header(&self, public_address: SocketAddr, client_address: Option<SocketAddr>) -> AddedRequestHeader {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_public_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sz`
[INFO] [stdout]    --> src/protocol/http/mod.rs:309:35
[INFO] [stdout]     |
[INFO] [stdout] 309 |     if let Some(Continue::Expects(sz)) = self.request.as_ref().and_then(|r| r.get_keep_alive().as_ref().map(|conn| conn.continues)) {
[INFO] [stdout]     |                                   ^^ help: if this is intentional, prefix it with an underscore: `_sz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wait_time`
[INFO] [stdout]    --> src/protocol/http/mod.rs:447:9
[INFO] [stdout]     |
[INFO] [stdout] 447 |     let wait_time  = metrics.wait_time;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wait_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]     --> src/http.rs:1288:31
[INFO] [stdout]      |
[INFO] [stdout] 1288 |   fn listen_port_state(&self, port: &u16) -> ListenPortState {
[INFO] [stdout]      |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `features`
[INFO] [stdout]    --> src/server.rs:191:20
[INFO] [stdout]     |
[INFO] [stdout] 191 |     FEATURES.with(|features| {
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_features`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `front`
[INFO] [stdout]    --> src/https_rustls/configuration.rs:173:15
[INFO] [stdout]     |
[INFO] [stdout] 173 |           let front = fronts.remove(pos);
[INFO] [stdout]     |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_front`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/https_rustls/configuration.rs:214:24
[INFO] [stdout]     |
[INFO] [stdout] 214 |   fn accept(&mut self, token: ListenToken) -> Result<TcpStream, AcceptError> {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]    --> src/https_rustls/configuration.rs:722:31
[INFO] [stdout]     |
[INFO] [stdout] 722 |   fn listen_port_state(&self, port: &u16) -> ListenPortState {
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]    --> src/lib.rs:634:9
[INFO] [stdout]     |
[INFO] [stdout] 634 |     let prev = self.wait_time;
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/metrics/network_drain.rs:68:31
[INFO] [stdout]    |
[INFO] [stdout] 68 |     self.app_data.retain(|ref key, ref value| value.updated || now.duration_since(value.last_sent) < Duration::new(600, 00));
[INFO] [stdout]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/metrics/network_drain.rs:69:35
[INFO] [stdout]    |
[INFO] [stdout] 69 |     self.backend_data.retain(|ref key, ref value| value.updated || now.duration_since(value.last_sent) < Duration::new(600, 00));
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> src/metrics/local_drain.rs:88:30
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(app_id: String, h: Histogram<u32>) -> BackendMetrics {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/metrics/writer.rs:182:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     for i in 0..(sent as usize) {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `before`
[INFO] [stdout]    --> src/pool.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let before = self.inner.position;
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_before`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `before`
[INFO] [stdout]    --> src/pool.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let before = self.inner.end;
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_before`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/pool.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let pos = self.inner.position;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end`
[INFO] [stdout]    --> src/pool.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let end = self.inner.end;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]    --> src/buffer_queue.rs:504:10
[INFO] [stdout]     |
[INFO] [stdout] 504 |     let (pool, mut b) = buf_with_capacity(10);
[INFO] [stdout]     |          ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/socket.rs:32:40
[INFO] [stdout]    |
[INFO] [stdout] 32 |   fn socket_write_vectored(&mut self,  buf: &[&iovec::IoVec]) -> (usize, SocketResult) {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sz`
[INFO] [stdout]    --> src/socket.rs:244:12
[INFO] [stdout]     |
[INFO] [stdout] 244 |         Ok(sz) => {},
[INFO] [stdout]     |            ^^ help: if this is intentional, prefix it with an underscore: `_sz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sent_size` is assigned to, but never used
[INFO] [stdout]    --> src/socket.rs:301:13
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let mut sent_size     = 0usize;
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_sent_size` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `public_address`
[INFO] [stdout]    --> src/protocol/http/mod.rs:206:38
[INFO] [stdout]     |
[INFO] [stdout] 206 |   pub fn added_request_header(&self, public_address: SocketAddr, client_address: Option<SocketAddr>) -> AddedRequestHeader {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_public_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sz`
[INFO] [stdout]    --> src/protocol/http/mod.rs:309:35
[INFO] [stdout]     |
[INFO] [stdout] 309 |     if let Some(Continue::Expects(sz)) = self.request.as_ref().and_then(|r| r.get_keep_alive().as_ref().map(|conn| conn.continues)) {
[INFO] [stdout]     |                                   ^^ help: if this is intentional, prefix it with an underscore: `_sz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wait_time`
[INFO] [stdout]    --> src/protocol/http/mod.rs:447:9
[INFO] [stdout]     |
[INFO] [stdout] 447 |     let wait_time  = metrics.wait_time;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wait_time`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]    --> src/protocol/http/parser/tests.rs:581:10
[INFO] [stdout]     |
[INFO] [stdout] 581 |     let (pool, mut buf) = buf_with_capacity(2048);
[INFO] [stdout]     |          ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]     --> src/protocol/http/parser/tests.rs:1095:10
[INFO] [stdout]      |
[INFO] [stdout] 1095 |     let (pool, mut buf) = buf_with_capacity(2048);
[INFO] [stdout]      |          ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> src/protocol/proxy_protocol/send.rs:246:11
[INFO] [stdout]     |
[INFO] [stdout] 246 |       let stream = StdTcpStream::connect(&addr).unwrap();
[INFO] [stdout]     |           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]     --> src/http.rs:1288:31
[INFO] [stdout]      |
[INFO] [stdout] 1288 |   fn listen_port_state(&self, port: &u16) -> ListenPortState {
[INFO] [stdout]      |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `jg`
[INFO] [stdout]     --> src/http.rs:1396:9
[INFO] [stdout]      |
[INFO] [stdout] 1396 |     let jg = thread::spawn(move || {
[INFO] [stdout]      |         ^^ help: if this is intentional, prefix it with an underscore: `_jg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `jg`
[INFO] [stdout]     --> src/http.rs:1453:9
[INFO] [stdout]      |
[INFO] [stdout] 1453 |     let jg = thread::spawn(move|| {
[INFO] [stdout]      |         ^^ help: if this is intentional, prefix it with an underscore: `_jg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `jg`
[INFO] [stdout]     --> src/http.rs:1529:9
[INFO] [stdout]      |
[INFO] [stdout] 1529 |     let jg = thread::spawn(move || {
[INFO] [stdout]      |         ^^ help: if this is intentional, prefix it with an underscore: `_jg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> src/backends.rs:248:13
[INFO] [stdout]     |
[INFO] [stdout] 248 |         for stream in listener.incoming() {
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]     --> src/tcp.rs:1230:15
[INFO] [stdout]      |
[INFO] [stdout] 1230 |           Err(e) => { println!("connection failed"); }
[INFO] [stdout]      |               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `response`
[INFO] [stdout]     --> src/tcp.rs:1206:11
[INFO] [stdout]      |
[INFO] [stdout] 1206 |       let response = b" END";
[INFO] [stdout]      |           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]     --> src/tcp.rs:1159:9
[INFO] [stdout]      |
[INFO] [stdout] 1159 |     let tx = start_proxy();
[INFO] [stdout]      |         ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `features`
[INFO] [stdout]    --> src/server.rs:191:20
[INFO] [stdout]     |
[INFO] [stdout] 191 |     FEATURES.with(|features| {
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_features`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `front`
[INFO] [stdout]    --> src/https_rustls/configuration.rs:173:15
[INFO] [stdout]     |
[INFO] [stdout] 173 |           let front = fronts.remove(pos);
[INFO] [stdout]     |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_front`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/https_rustls/configuration.rs:214:24
[INFO] [stdout]     |
[INFO] [stdout] 214 |   fn accept(&mut self, token: ListenToken) -> Result<TcpStream, AcceptError> {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]    --> src/https_rustls/configuration.rs:722:31
[INFO] [stdout]     |
[INFO] [stdout] 722 |   fn listen_port_state(&self, port: &u16) -> ListenPortState {
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/metrics/local_drain.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(app_id: String, h: Histogram<u32>) -> BackendMetrics {
[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: `new`
[INFO] [stdout]    --> src/metrics/local_drain.rs:338:10
[INFO] [stdout]     |
[INFO] [stdout] 338 |   pub fn new() -> TimeSerie {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> src/metrics/local_drain.rs:350:10
[INFO] [stdout]     |
[INFO] [stdout] 350 |   pub fn add(&mut self, value: u32) {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `increment`
[INFO] [stdout]    --> src/metrics/local_drain.rs:374:10
[INFO] [stdout]     |
[INFO] [stdout] 374 |   pub fn increment(&mut self) {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `filtered`
[INFO] [stdout]    --> src/metrics/local_drain.rs:378:10
[INFO] [stdout]     |
[INFO] [stdout] 378 |   pub fn filtered(&mut self) -> FilteredTimeSerie {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_sent_at`
[INFO] [stdout]    --> src/metrics/local_drain.rs:404:10
[INFO] [stdout]     |
[INFO] [stdout] 404 |   pub fn update_sent_at(&mut self, now: Instant) {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_ws`
[INFO] [stdout]   --> src/protocol/http/parser/mod.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn is_ws(i: u8) -> bool {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trailer_line`
[INFO] [stdout]    --> src/protocol/http/parser/mod.rs:452:4
[INFO] [stdout]     |
[INFO] [stdout] 452 | fn trailer_line(i: &[u8]) -> IResult<&[u8], &[u8]> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/load_balancing.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 |   fn new() -> Self {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `request_id`
[INFO] [stdout]    --> src/tcp.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 184 |   fn request_id(&self) -> Option<&Ulid> {
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `listen_port_state`
[INFO] [stdout]     --> src/server.rs:1479:6
[INFO] [stdout]      |
[INFO] [stdout] 1479 |   fn listen_port_state(&self, port: &u16) -> ListenPortState {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/metrics/local_drain.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         h.record(value as u64);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/metrics/local_drain.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         (*v1).record(v2 as u64);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1481:13
[INFO] [stdout]      |
[INFO] [stdout] 1481 |             write!(&mut s, "X-Forwarded-Proto: {}\r\n", proto);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1485:13
[INFO] [stdout]      |
[INFO] [stdout] 1485 |             write!(&mut s, "X-Forwarded-Port: {}\r\n", front_port);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1493:21
[INFO] [stdout]      |
[INFO] [stdout] 1493 |                     write!(&mut s, "X-Forwarded-For: {}\r\n", peer_ip);
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1496:21
[INFO] [stdout]      |
[INFO] [stdout] 1496 |                     write!(&mut s, "X-Forwarded-For: {}, {}\r\n", value, peer_ip);
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1502:21
[INFO] [stdout]      |
[INFO] [stdout] 1502 |                     write!(&mut s, "Forwarded: ");
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1505:21
[INFO] [stdout]      |
[INFO] [stdout] 1505 |                     write!(&mut s, "Forwarded: {}, ", value);
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1509:13
[INFO] [stdout]      |
[INFO] [stdout] 1509 | /             match (peer_ip, peer_port, front_ip) {
[INFO] [stdout] 1510 | |                 (IpAddr::V4(_), peer_port, IpAddr::V4(_)) => {
[INFO] [stdout] 1511 | |                     write!(&mut s, "proto={};for={}:{};by={}\r\n",
[INFO] [stdout] 1512 | |                            proto, peer_ip, peer_port, front_ip)
[INFO] [stdout] ...    |
[INFO] [stdout] 1525 | |                 },
[INFO] [stdout] 1526 | |             };
[INFO] [stdout]      | |______________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1529:9
[INFO] [stdout]      |
[INFO] [stdout] 1529 |         write!(&mut s, "Sozu-Id: {}\r\n{}", self.request_id, closing_header);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 52 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read examples/../assets/cert_test.pem: No such file or directory (os error 2)
[INFO] [stdout]    --> examples/main.rs:137:15
[INFO] [stdout]     |
[INFO] [stdout] 137 |   let cert2 = include_str!("../assets/cert_test.pem");
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read examples/../assets/key_test.pem: No such file or directory (os error 2)
[INFO] [stdout]    --> examples/main.rs:138:15
[INFO] [stdout]     |
[INFO] [stdout] 138 |   let key2  = include_str!("../assets/key_test.pem");
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sozu-lib`
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/metrics/local_drain.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 |   pub fn new(app_id: String, h: Histogram<u32>) -> BackendMetrics {
[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: `new`
[INFO] [stdout]    --> src/metrics/local_drain.rs:338:10
[INFO] [stdout]     |
[INFO] [stdout] 338 |   pub fn new() -> TimeSerie {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> src/metrics/local_drain.rs:350:10
[INFO] [stdout]     |
[INFO] [stdout] 350 |   pub fn add(&mut self, value: u32) {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `increment`
[INFO] [stdout]    --> src/metrics/local_drain.rs:374:10
[INFO] [stdout]     |
[INFO] [stdout] 374 |   pub fn increment(&mut self) {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `filtered`
[INFO] [stdout]    --> src/metrics/local_drain.rs:378:10
[INFO] [stdout]     |
[INFO] [stdout] 378 |   pub fn filtered(&mut self) -> FilteredTimeSerie {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_sent_at`
[INFO] [stdout]    --> src/metrics/local_drain.rs:404:10
[INFO] [stdout]     |
[INFO] [stdout] 404 |   pub fn update_sent_at(&mut self, now: Instant) {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_ws`
[INFO] [stdout]   --> src/protocol/http/parser/mod.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn is_ws(i: u8) -> bool {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trailer_line`
[INFO] [stdout]    --> src/protocol/http/parser/mod.rs:452:4
[INFO] [stdout]     |
[INFO] [stdout] 452 | fn trailer_line(i: &[u8]) -> IResult<&[u8], &[u8]> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/load_balancing.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 |   fn new() -> Self {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `request_id`
[INFO] [stdout]    --> src/tcp.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 184 |   fn request_id(&self) -> Option<&Ulid> {
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `listen_port_state`
[INFO] [stdout]     --> src/server.rs:1479:6
[INFO] [stdout]      |
[INFO] [stdout] 1479 |   fn listen_port_state(&self, port: &u16) -> ListenPortState {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/metrics/local_drain.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         h.record(value as u64);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/metrics/local_drain.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         (*v1).record(v2 as u64);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/buffer_queue.rs:505:5
[INFO] [stdout]     |
[INFO] [stdout] 505 |     b.buffer.write(&b"ABCDEFGHIJ"[..]);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1481:13
[INFO] [stdout]      |
[INFO] [stdout] 1481 |             write!(&mut s, "X-Forwarded-Proto: {}\r\n", proto);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1485:13
[INFO] [stdout]      |
[INFO] [stdout] 1485 |             write!(&mut s, "X-Forwarded-Port: {}\r\n", front_port);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1493:21
[INFO] [stdout]      |
[INFO] [stdout] 1493 |                     write!(&mut s, "X-Forwarded-For: {}\r\n", peer_ip);
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1496:21
[INFO] [stdout]      |
[INFO] [stdout] 1496 |                     write!(&mut s, "X-Forwarded-For: {}, {}\r\n", value, peer_ip);
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1502:21
[INFO] [stdout]      |
[INFO] [stdout] 1502 |                     write!(&mut s, "Forwarded: ");
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1505:21
[INFO] [stdout]      |
[INFO] [stdout] 1505 |                     write!(&mut s, "Forwarded: {}, ", value);
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1509:13
[INFO] [stdout]      |
[INFO] [stdout] 1509 | /             match (peer_ip, peer_port, front_ip) {
[INFO] [stdout] 1510 | |                 (IpAddr::V4(_), peer_port, IpAddr::V4(_)) => {
[INFO] [stdout] 1511 | |                     write!(&mut s, "proto={};for={}:{};by={}\r\n",
[INFO] [stdout] 1512 | |                            proto, peer_ip, peer_port, front_ip)
[INFO] [stdout] ...    |
[INFO] [stdout] 1525 | |                 },
[INFO] [stdout] 1526 | |             };
[INFO] [stdout]      | |______________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/protocol/http/mod.rs:1529:9
[INFO] [stdout]      |
[INFO] [stdout] 1529 |         write!(&mut s, "Sozu-Id: {}\r\n{}", self.request_id, closing_header);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/http.rs:1547:5
[INFO] [stdout]      |
[INFO] [stdout] 1547 |     client.set_read_timeout(Some(Duration::new(5,0)));
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/tcp.rs:1286:7
[INFO] [stdout]      |
[INFO] [stdout] 1286 | /       scm.send_listeners(&Listeners {
[INFO] [stdout] 1287 | |         http: Vec::new(),
[INFO] [stdout] 1288 | |         tls:  Vec::new(),
[INFO] [stdout] 1289 | |         tcp:  Vec::new(),
[INFO] [stdout] 1290 | |       });
[INFO] [stdout]      | |_________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 71 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4fe9e320a5648c5a5455fb2aef2a5afba992ebce8957313ca17d254d8a49d7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe9e320a5648c5a5455fb2aef2a5afba992ebce8957313ca17d254d8a49d7e9", kill_on_drop: false }`
[INFO] [stdout] 4fe9e320a5648c5a5455fb2aef2a5afba992ebce8957313ca17d254d8a49d7e9