[INFO] cloning repository https://github.com/sendyhalim/tcp-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sendyhalim/tcp-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsendyhalim%2Ftcp-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsendyhalim%2Ftcp-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 625a90b67fc7662c5544920306d01831a0a36ddc
[INFO] testing sendyhalim/tcp-rust against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsendyhalim%2Ftcp-rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sendyhalim/tcp-rust on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sendyhalim/tcp-rust
[INFO] finished tweaking git repo https://github.com/sendyhalim/tcp-rust
[INFO] tweaked toml for git repo https://github.com/sendyhalim/tcp-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/sendyhalim/tcp-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded etherparse v0.8.3
[INFO] [stderr]   Downloaded nix v0.13.1
[INFO] [stderr]   Downloaded tun-tap v0.1.2
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a1dfa6fe2638fd3c1693aa86b2f757890b10ab0aba9c3ceba5dafacda344a0c
[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" "3a1dfa6fe2638fd3c1693aa86b2f757890b10ab0aba9c3ceba5dafacda344a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a1dfa6fe2638fd3c1693aa86b2f757890b10ab0aba9c3ceba5dafacda344a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1dfa6fe2638fd3c1693aa86b2f757890b10ab0aba9c3ceba5dafacda344a0c", kill_on_drop: false }`
[INFO] [stdout] 3a1dfa6fe2638fd3c1693aa86b2f757890b10ab0aba9c3ceba5dafacda344a0c
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13f9cf5e03f9a4bbf0469253ba0dcaefcc757cdceaf5bd6d793c95167de31a2f
[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" "13f9cf5e03f9a4bbf0469253ba0dcaefcc757cdceaf5bd6d793c95167de31a2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling etherparse v0.8.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.18
[INFO] [stderr]    Compiling tcp-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/tcp.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/lib.rs:167:15
[INFO] [stdout]     |
[INFO] [stdout] 167 |           Err(err) => {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/lib.rs:180:11
[INFO] [stdout]     |
[INFO] [stdout] 180 |       Err(err) => {
[INFO] [stdout]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `quad`
[INFO] [stdout]    --> src/lib.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |     for quad in pending {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_quad`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection`
[INFO] [stdout]    --> src/lib.rs:329:17
[INFO] [stdout]     |
[INFO] [stdout] 329 |     if let Some(connection) = connection_manager.connection_by_quad.remove(&self.quad) {}
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `how`
[INFO] [stdout]    --> src/lib.rs:334:30
[INFO] [stdout]     |
[INFO] [stdout] 334 |   pub fn shutdown(&mut self, how: std::net::Shutdown) -> io::Result<()> {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_how`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/tcp.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let buf = [0u8; 1500];
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/tcp.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     data: &'a [u8],
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nacked`
[INFO] [stdout]    --> src/tcp.rs:398:15
[INFO] [stdout]     |
[INFO] [stdout] 398 |           let nacked = self
[INFO] [stdout]     |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_nacked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]    --> src/tcp.rs:314:5
[INFO] [stdout]     |
[INFO] [stdout] 314 |     iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp.rs:406:15
[INFO] [stdout]     |
[INFO] [stdout] 406 |           let mut srtt = &mut self.timers.srtt;
[INFO] [stdout]     |               ----^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_synchronized`
[INFO] [stdout]   --> src/tcp.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn is_synchronized(&self) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `up`
[INFO] [stdout]   --> src/tcp.rs:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 |   up: bool,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `up`
[INFO] [stdout]    --> src/tcp.rs:105:3
[INFO] [stdout]     |
[INFO] [stdout] 105 |   up: bool,
[INFO] [stdout]     |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl1`
[INFO] [stdout]    --> src/tcp.rs:108:3
[INFO] [stdout]     |
[INFO] [stdout] 108 |   wl1: usize,
[INFO] [stdout]     |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl2`
[INFO] [stdout]    --> src/tcp.rs:111:3
[INFO] [stdout]     |
[INFO] [stdout] 111 |   wl2: usize,
[INFO] [stdout]     |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `iss`
[INFO] [stdout]    --> src/tcp.rs:114:3
[INFO] [stdout]     |
[INFO] [stdout] 114 |   iss: u32,
[INFO] [stdout]     |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `send_rst`
[INFO] [stdout]    --> src/tcp.rs:487:6
[INFO] [stdout]     |
[INFO] [stdout] 487 |   fn send_rst(&mut self, nic: &tun_tap::Iface) -> io::Result<()> {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readyAction` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:123:21
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let readyAction = map_entry.get_mut().on_packet(
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: convert the identifier to snake case: `ready_action`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:492:5
[INFO] [stdout]     |
[INFO] [stdout] 492 |     self.write(nic, self.send.nxt, 0);
[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/tcp.rs:544:5
[INFO] [stdout]     |
[INFO] [stdout] 544 | /     self
[INFO] [stdout] 545 | |       .iph
[INFO] [stdout] 546 | |       .set_payload_len(ip_payload_size - self.iph.header_len() as usize);
[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:557:5
[INFO] [stdout]     |
[INFO] [stdout] 557 |     self.iph.write(&mut unwritten_buf);
[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:558:5
[INFO] [stdout]     |
[INFO] [stdout] 558 |     self.tcph.write(&mut unwritten_buf);
[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: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::Entry`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::hash_map::Entry;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.13s
[INFO] running `Command { std: "docker" "inspect" "13f9cf5e03f9a4bbf0469253ba0dcaefcc757cdceaf5bd6d793c95167de31a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13f9cf5e03f9a4bbf0469253ba0dcaefcc757cdceaf5bd6d793c95167de31a2f", kill_on_drop: false }`
[INFO] [stdout] 13f9cf5e03f9a4bbf0469253ba0dcaefcc757cdceaf5bd6d793c95167de31a2f
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e97e02d518a3088465e3bac2dedf588ce77ed6cb559a421bfa5b17e71bf4b438
[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" "e97e02d518a3088465e3bac2dedf588ce77ed6cb559a421bfa5b17e71bf4b438", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/tcp.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/lib.rs:167:15
[INFO] [stdout]     |
[INFO] [stdout] 167 |           Err(err) => {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/lib.rs:180:11
[INFO] [stdout]     |
[INFO] [stdout] 180 |       Err(err) => {
[INFO] [stdout]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `quad`
[INFO] [stdout]    --> src/lib.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |     for quad in pending {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_quad`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection`
[INFO] [stdout]    --> src/lib.rs:329:17
[INFO] [stdout]     |
[INFO] [stdout] 329 |     if let Some(connection) = connection_manager.connection_by_quad.remove(&self.quad) {}
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `how`
[INFO] [stdout]    --> src/lib.rs:334:30
[INFO] [stdout]     |
[INFO] [stdout] 334 |   pub fn shutdown(&mut self, how: std::net::Shutdown) -> io::Result<()> {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_how`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/tcp.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let buf = [0u8; 1500];
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tcp-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/tcp.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     data: &'a [u8],
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nacked`
[INFO] [stdout]    --> src/tcp.rs:398:15
[INFO] [stdout]     |
[INFO] [stdout] 398 |           let nacked = self
[INFO] [stdout]     |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_nacked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]    --> src/tcp.rs:314:5
[INFO] [stdout]     |
[INFO] [stdout] 314 |     iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp.rs:406:15
[INFO] [stdout]     |
[INFO] [stdout] 406 |           let mut srtt = &mut self.timers.srtt;
[INFO] [stdout]     |               ----^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_synchronized`
[INFO] [stdout]   --> src/tcp.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn is_synchronized(&self) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `up`
[INFO] [stdout]   --> src/tcp.rs:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 |   up: bool,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `up`
[INFO] [stdout]    --> src/tcp.rs:105:3
[INFO] [stdout]     |
[INFO] [stdout] 105 |   up: bool,
[INFO] [stdout]     |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl1`
[INFO] [stdout]    --> src/tcp.rs:108:3
[INFO] [stdout]     |
[INFO] [stdout] 108 |   wl1: usize,
[INFO] [stdout]     |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl2`
[INFO] [stdout]    --> src/tcp.rs:111:3
[INFO] [stdout]     |
[INFO] [stdout] 111 |   wl2: usize,
[INFO] [stdout]     |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `iss`
[INFO] [stdout]    --> src/tcp.rs:114:3
[INFO] [stdout]     |
[INFO] [stdout] 114 |   iss: u32,
[INFO] [stdout]     |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `send_rst`
[INFO] [stdout]    --> src/tcp.rs:487:6
[INFO] [stdout]     |
[INFO] [stdout] 487 |   fn send_rst(&mut self, nic: &tun_tap::Iface) -> io::Result<()> {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readyAction` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:123:21
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let readyAction = map_entry.get_mut().on_packet(
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: convert the identifier to snake case: `ready_action`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:492:5
[INFO] [stdout]     |
[INFO] [stdout] 492 |     self.write(nic, self.send.nxt, 0);
[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/tcp.rs:544:5
[INFO] [stdout]     |
[INFO] [stdout] 544 | /     self
[INFO] [stdout] 545 | |       .iph
[INFO] [stdout] 546 | |       .set_payload_len(ip_payload_size - self.iph.header_len() as usize);
[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:557:5
[INFO] [stdout]     |
[INFO] [stdout] 557 |     self.iph.write(&mut unwritten_buf);
[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:558:5
[INFO] [stdout]     |
[INFO] [stdout] 558 |     self.tcph.write(&mut unwritten_buf);
[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: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::Entry`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::hash_map::Entry;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/tcp.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/lib.rs:167:15
[INFO] [stdout]     |
[INFO] [stdout] 167 |           Err(err) => {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/lib.rs:180:11
[INFO] [stdout]     |
[INFO] [stdout] 180 |       Err(err) => {
[INFO] [stdout]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `quad`
[INFO] [stdout]    --> src/lib.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |     for quad in pending {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_quad`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection`
[INFO] [stdout]    --> src/lib.rs:329:17
[INFO] [stdout]     |
[INFO] [stdout] 329 |     if let Some(connection) = connection_manager.connection_by_quad.remove(&self.quad) {}
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `how`
[INFO] [stdout]    --> src/lib.rs:334:30
[INFO] [stdout]     |
[INFO] [stdout] 334 |   pub fn shutdown(&mut self, how: std::net::Shutdown) -> io::Result<()> {
[INFO] [stdout]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_how`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/tcp.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let buf = [0u8; 1500];
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/tcp.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     data: &'a [u8],
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nacked`
[INFO] [stdout]    --> src/tcp.rs:398:15
[INFO] [stdout]     |
[INFO] [stdout] 398 |           let nacked = self
[INFO] [stdout]     |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_nacked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]    --> src/tcp.rs:314:5
[INFO] [stdout]     |
[INFO] [stdout] 314 |     iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp.rs:406:15
[INFO] [stdout]     |
[INFO] [stdout] 406 |           let mut srtt = &mut self.timers.srtt;
[INFO] [stdout]     |               ----^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_synchronized`
[INFO] [stdout]   --> src/tcp.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn is_synchronized(&self) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `up`
[INFO] [stdout]   --> src/tcp.rs:74:3
[INFO] [stdout]    |
[INFO] [stdout] 74 |   up: bool,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `up`
[INFO] [stdout]    --> src/tcp.rs:105:3
[INFO] [stdout]     |
[INFO] [stdout] 105 |   up: bool,
[INFO] [stdout]     |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl1`
[INFO] [stdout]    --> src/tcp.rs:108:3
[INFO] [stdout]     |
[INFO] [stdout] 108 |   wl1: usize,
[INFO] [stdout]     |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl2`
[INFO] [stdout]    --> src/tcp.rs:111:3
[INFO] [stdout]     |
[INFO] [stdout] 111 |   wl2: usize,
[INFO] [stdout]     |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `iss`
[INFO] [stdout]    --> src/tcp.rs:114:3
[INFO] [stdout]     |
[INFO] [stdout] 114 |   iss: u32,
[INFO] [stdout]     |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `send_rst`
[INFO] [stdout]    --> src/tcp.rs:487:6
[INFO] [stdout]     |
[INFO] [stdout] 487 |   fn send_rst(&mut self, nic: &tun_tap::Iface) -> io::Result<()> {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readyAction` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:123:21
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 let readyAction = map_entry.get_mut().on_packet(
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: convert the identifier to snake case: `ready_action`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:492:5
[INFO] [stdout]     |
[INFO] [stdout] 492 |     self.write(nic, self.send.nxt, 0);
[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/tcp.rs:544:5
[INFO] [stdout]     |
[INFO] [stdout] 544 | /     self
[INFO] [stdout] 545 | |       .iph
[INFO] [stdout] 546 | |       .set_payload_len(ip_payload_size - self.iph.header_len() as usize);
[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:557:5
[INFO] [stdout]     |
[INFO] [stdout] 557 |     self.iph.write(&mut unwritten_buf);
[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:558:5
[INFO] [stdout]     |
[INFO] [stdout] 558 |     self.tcph.write(&mut unwritten_buf);
[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: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "e97e02d518a3088465e3bac2dedf588ce77ed6cb559a421bfa5b17e71bf4b438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97e02d518a3088465e3bac2dedf588ce77ed6cb559a421bfa5b17e71bf4b438", kill_on_drop: false }`
[INFO] [stdout] e97e02d518a3088465e3bac2dedf588ce77ed6cb559a421bfa5b17e71bf4b438
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 30b37347682ad31e51814524191206a1d1344e730ccfe6347ec9e6f6d400685c
[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" "30b37347682ad31e51814524191206a1d1344e730ccfe6347ec9e6f6d400685c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/tcp.rs:8:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 8 | use std::time::Duration;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/lib.rs:167:15
[INFO] [stderr]     |
[INFO] [stderr] 167 |           Err(err) => {
[INFO] [stderr]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/lib.rs:180:11
[INFO] [stderr]     |
[INFO] [stderr] 180 |       Err(err) => {
[INFO] [stderr]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `quad`
[INFO] [stderr]    --> src/lib.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 |     for quad in pending {
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_quad`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `connection`
[INFO] [stderr]    --> src/lib.rs:329:17
[INFO] [stderr]     |
[INFO] [stderr] 329 |     if let Some(connection) = connection_manager.connection_by_quad.remove(&self.quad) {}
[INFO] [stderr]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `how`
[INFO] [stderr]    --> src/lib.rs:334:30
[INFO] [stderr]     |
[INFO] [stderr] 334 |   pub fn shutdown(&mut self, how: std::net::Shutdown) -> io::Result<()> {
[INFO] [stderr]     |                              ^^^ help: if this is intentional, prefix it with an underscore: `_how`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/tcp.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |     let buf = [0u8; 1500];
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/tcp.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 |     data: &'a [u8],
[INFO] [stderr]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nacked`
[INFO] [stderr]    --> src/tcp.rs:398:15
[INFO] [stderr]     |
[INFO] [stderr] 398 |           let nacked = self
[INFO] [stderr]     |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_nacked`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iph`
[INFO] [stderr]    --> src/tcp.rs:314:5
[INFO] [stderr]     |
[INFO] [stderr] 314 |     iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stderr]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tcp.rs:406:15
[INFO] [stderr]     |
[INFO] [stderr] 406 |           let mut srtt = &mut self.timers.srtt;
[INFO] [stderr]     |               ----^^^^
[INFO] [stderr]     |               |
[INFO] [stderr]     |               help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_synchronized`
[INFO] [stderr]   --> src/tcp.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 |   pub fn is_synchronized(&self) -> bool {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `up`
[INFO] [stderr]   --> src/tcp.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   up: bool,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `up`
[INFO] [stderr]    --> src/tcp.rs:105:3
[INFO] [stderr]     |
[INFO] [stderr] 105 |   up: bool,
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `wl1`
[INFO] [stderr]    --> src/tcp.rs:108:3
[INFO] [stderr]     |
[INFO] [stderr] 108 |   wl1: usize,
[INFO] [stderr]     |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `wl2`
[INFO] [stderr]    --> src/tcp.rs:111:3
[INFO] [stderr]     |
[INFO] [stderr] 111 |   wl2: usize,
[INFO] [stderr]     |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `iss`
[INFO] [stderr]    --> src/tcp.rs:114:3
[INFO] [stderr]     |
[INFO] [stderr] 114 |   iss: u32,
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `send_rst`
[INFO] [stderr]    --> src/tcp.rs:487:6
[INFO] [stderr]     |
[INFO] [stderr] 487 |   fn send_rst(&mut self, nic: &tun_tap::Iface) -> io::Result<()> {
[INFO] [stderr]     |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `readyAction` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:123:21
[INFO] [stderr]     |
[INFO] [stderr] 123 |                 let readyAction = map_entry.get_mut().on_packet(
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: convert the identifier to snake case: `ready_action`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tcp.rs:492:5
[INFO] [stderr]     |
[INFO] [stderr] 492 |     self.write(nic, self.send.nxt, 0);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tcp.rs:544:5
[INFO] [stderr]     |
[INFO] [stderr] 544 | /     self
[INFO] [stderr] 545 | |       .iph
[INFO] [stderr] 546 | |       .set_payload_len(ip_payload_size - self.iph.header_len() as usize);
[INFO] [stderr]     | |_________________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tcp.rs:557:5
[INFO] [stderr]     |
[INFO] [stderr] 557 |     self.iph.write(&mut unwritten_buf);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tcp.rs:558:5
[INFO] [stderr]     |
[INFO] [stderr] 558 |     self.tcph.write(&mut unwritten_buf);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `tcp-rust` (lib) generated 23 warnings
[INFO] [stderr] warning: `tcp-rust` (lib test) generated 23 warnings (23 duplicates)
[INFO] [stderr] warning: unused import: `std::collections::hash_map::Entry`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::hash_map::Entry;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tcp-rust` (bin "tcp-rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tcp_rust-456459605b48ba1a)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tcp_rust-3d2fcd45b260d209)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tcp_rust
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/tcp.rs - tcp::SendSequenceSpace (line 86) ... FAILED
[INFO] [stdout] test src/tcp.rs - tcp::RecvSequenceSpace (line 59) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/tcp.rs - tcp::SendSequenceSpace (line 86) stdout ----
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `2`
[INFO] [stdout]  --> src/tcp.rs:87:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | 1         2          3          4
[INFO] [stdout]   |           ^ expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/tcp.rs - tcp::RecvSequenceSpace (line 59) stdout ----
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `2`
[INFO] [stdout]  --> src/tcp.rs:60:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | 1          2          3
[INFO] [stdout]   |            ^ expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/tcp.rs - tcp::RecvSequenceSpace (line 59)
[INFO] [stdout]     src/tcp.rs - tcp::SendSequenceSpace (line 86)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "30b37347682ad31e51814524191206a1d1344e730ccfe6347ec9e6f6d400685c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30b37347682ad31e51814524191206a1d1344e730ccfe6347ec9e6f6d400685c", kill_on_drop: false }`
[INFO] [stdout] 30b37347682ad31e51814524191206a1d1344e730ccfe6347ec9e6f6d400685c
