[INFO] cloning repository https://github.com/jipram017/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/jipram017/tcp-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjipram017%2Ftcp-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjipram017%2Ftcp-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35b37012c0b0ceab71cf2381c3a27f3cd8cc9c77
[INFO] testing jipram017/tcp-rust against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjipram017%2Ftcp-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jipram017/tcp-rust on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jipram017/tcp-rust
[INFO] finished tweaking git repo https://github.com/jipram017/tcp-rust
[INFO] tweaked toml for git repo https://github.com/jipram017/tcp-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jipram017/tcp-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfaebcc4365dcbcbe7d45b36284eb7a0bd3091875ea7ad13415854ef62ac8d35
[INFO] running `Command { std: "docker" "start" "-a" "dfaebcc4365dcbcbe7d45b36284eb7a0bd3091875ea7ad13415854ef62ac8d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfaebcc4365dcbcbe7d45b36284eb7a0bd3091875ea7ad13415854ef62ac8d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfaebcc4365dcbcbe7d45b36284eb7a0bd3091875ea7ad13415854ef62ac8d35", kill_on_drop: false }`
[INFO] [stdout] dfaebcc4365dcbcbe7d45b36284eb7a0bd3091875ea7ad13415854ef62ac8d35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ebe4b784e436d67da4ef34ebc664db4f83c797f57c0744e047b79d699a6d25e
[INFO] running `Command { std: "docker" "start" "-a" "1ebe4b784e436d67da4ef34ebc664db4f83c797f57c0744e047b79d699a6d25e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]    Compiling etherparse v0.9.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.6
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling trust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     loop {
[INFO] [stdout] 19 | |        let nbytes = nic.recv(&mut buf [..])?;
[INFO] [stdout] 20 | |        //let eth_flags = u16::from_be_bytes([buf[0], buf[1]]);
[INFO] [stdout] 21 | |        //let eth_proto = u16::from_be_bytes([buf[2], buf[3]]);
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | |       
[INFO] [stdout] 64 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 65 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]    --> src/tcp.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |            iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]     |            ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/tcp.rs:227:27
[INFO] [stdout]     |
[INFO] [stdout] 227 |                   let mut 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:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 |            data: &'a [u8],
[INFO] [stdout]     |            ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 |                   let mut buf = [0u8; 1500];
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:46:37
[INFO] [stdout]    |
[INFO] [stdout] 46 |                       Entry::Vacant(mut e) => {
[INFO] [stdout]    |                                     ----^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_synchronized` is never used
[INFO] [stdout]   --> src/tcp.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl State {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 12 |    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: fields `wnd`, `up`, `wl1`, and `wl2` are never read
[INFO] [stdout]   --> src/tcp.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct SendSequenceSpace {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |    wnd: u16,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 48 |    /// send urgent pointer
[INFO] [stdout] 49 |    up:  bool,
[INFO] [stdout]    |    ^^
[INFO] [stdout] 50 |    /// segment sequence number used for last window update
[INFO] [stdout] 51 |    wl1: usize,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 52 |    /// segment acknowledgment number used for last window update
[INFO] [stdout] 53 |    wl2: usize,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `up` and `irs` are never read
[INFO] [stdout]   --> src/tcp.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct RecvSequenceSpace {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 75 |    up: bool,
[INFO] [stdout]    |    ^^
[INFO] [stdout] 76 |    /// initial receive sequence number
[INFO] [stdout] 77 |    irs: u32
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send_rst` is never used
[INFO] [stdout]    --> src/tcp.rs:112:11
[INFO] [stdout]     |
[INFO] [stdout] 80  | impl Connection {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 112 |    pub fn send_rst(&mut self, nic: &mut tun_tap::Iface) -> io::Result<()>{
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:89:7
[INFO] [stdout]    |
[INFO] [stdout] 89 |       self.ip.set_payload_len(size - self.ip.header_len() as usize);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |       let _ = self.ip.set_payload_len(size - self.ip.header_len() as usize);
[INFO] [stdout]    |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:95:7
[INFO] [stdout]    |
[INFO] [stdout] 95 |       self.ip.write(&mut unwritten);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |       let _ = self.ip.write(&mut unwritten);
[INFO] [stdout]    |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:96:7
[INFO] [stdout]    |
[INFO] [stdout] 96 |       self.tcp.write(&mut unwritten);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 96 |       let _ = self.tcp.write(&mut unwritten);
[INFO] [stdout]    |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.77s
[INFO] running `Command { std: "docker" "inspect" "1ebe4b784e436d67da4ef34ebc664db4f83c797f57c0744e047b79d699a6d25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ebe4b784e436d67da4ef34ebc664db4f83c797f57c0744e047b79d699a6d25e", kill_on_drop: false }`
[INFO] [stdout] 1ebe4b784e436d67da4ef34ebc664db4f83c797f57c0744e047b79d699a6d25e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79dfdc0876893d0407410e8eca1eda0528b87484f66893690ae37b9886a4379c
[INFO] running `Command { std: "docker" "start" "-a" "79dfdc0876893d0407410e8eca1eda0528b87484f66893690ae37b9886a4379c", kill_on_drop: false }`
[INFO] [stderr]    Compiling trust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     loop {
[INFO] [stdout] 19 | |        let nbytes = nic.recv(&mut buf [..])?;
[INFO] [stdout] 20 | |        //let eth_flags = u16::from_be_bytes([buf[0], buf[1]]);
[INFO] [stdout] 21 | |        //let eth_proto = u16::from_be_bytes([buf[2], buf[3]]);
[INFO] [stdout] ...  |
[INFO] [stdout] 63 | |       
[INFO] [stdout] 64 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 65 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]    --> src/tcp.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |            iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]     |            ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/tcp.rs:227:27
[INFO] [stdout]     |
[INFO] [stdout] 227 |                   let mut 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:224:12
[INFO] [stdout]     |
[INFO] [stdout] 224 |            data: &'a [u8],
[INFO] [stdout]     |            ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 |                   let mut buf = [0u8; 1500];
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:46:37
[INFO] [stdout]    |
[INFO] [stdout] 46 |                       Entry::Vacant(mut e) => {
[INFO] [stdout]    |                                     ----^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_synchronized` is never used
[INFO] [stdout]   --> src/tcp.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl State {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 12 |    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: fields `wnd`, `up`, `wl1`, and `wl2` are never read
[INFO] [stdout]   --> src/tcp.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct SendSequenceSpace {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 47 |    wnd: u16,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 48 |    /// send urgent pointer
[INFO] [stdout] 49 |    up:  bool,
[INFO] [stdout]    |    ^^
[INFO] [stdout] 50 |    /// segment sequence number used for last window update
[INFO] [stdout] 51 |    wl1: usize,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 52 |    /// segment acknowledgment number used for last window update
[INFO] [stdout] 53 |    wl2: usize,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `up` and `irs` are never read
[INFO] [stdout]   --> src/tcp.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct RecvSequenceSpace {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 75 |    up: bool,
[INFO] [stdout]    |    ^^
[INFO] [stdout] 76 |    /// initial receive sequence number
[INFO] [stdout] 77 |    irs: u32
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send_rst` is never used
[INFO] [stdout]    --> src/tcp.rs:112:11
[INFO] [stdout]     |
[INFO] [stdout] 80  | impl Connection {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 112 |    pub fn send_rst(&mut self, nic: &mut tun_tap::Iface) -> io::Result<()>{
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:89:7
[INFO] [stdout]    |
[INFO] [stdout] 89 |       self.ip.set_payload_len(size - self.ip.header_len() as usize);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |       let _ = self.ip.set_payload_len(size - self.ip.header_len() as usize);
[INFO] [stdout]    |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:95:7
[INFO] [stdout]    |
[INFO] [stdout] 95 |       self.ip.write(&mut unwritten);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |       let _ = self.ip.write(&mut unwritten);
[INFO] [stdout]    |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:96:7
[INFO] [stdout]    |
[INFO] [stdout] 96 |       self.tcp.write(&mut unwritten);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 96 |       let _ = self.tcp.write(&mut unwritten);
[INFO] [stdout]    |       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "79dfdc0876893d0407410e8eca1eda0528b87484f66893690ae37b9886a4379c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79dfdc0876893d0407410e8eca1eda0528b87484f66893690ae37b9886a4379c", kill_on_drop: false }`
[INFO] [stdout] 79dfdc0876893d0407410e8eca1eda0528b87484f66893690ae37b9886a4379c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d8d36e756e58b88b4c41cf6af0716c27bf30cfb03da732e3d55b40ab82608e39
[INFO] running `Command { std: "docker" "start" "-a" "d8d36e756e58b88b4c41cf6af0716c27bf30cfb03da732e3d55b40ab82608e39", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     loop {
[INFO] [stderr] 19 | |        let nbytes = nic.recv(&mut buf [..])?;
[INFO] [stderr] 20 | |        //let eth_flags = u16::from_be_bytes([buf[0], buf[1]]);
[INFO] [stderr] 21 | |        //let eth_proto = u16::from_be_bytes([buf[2], buf[3]]);
[INFO] [stderr] ...  |
[INFO] [stderr] 63 | |       
[INFO] [stderr] 64 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 65 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iph`
[INFO] [stderr]    --> src/tcp.rs:123:12
[INFO] [stderr]     |
[INFO] [stderr] 123 |            iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stderr]     |            ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/tcp.rs:227:27
[INFO] [stderr]     |
[INFO] [stderr] 227 |                   let mut 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:224:12
[INFO] [stderr]     |
[INFO] [stderr] 224 |            data: &'a [u8],
[INFO] [stderr]     |            ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tcp.rs:227:23
[INFO] [stderr]     |
[INFO] [stderr] 227 |                   let mut buf = [0u8; 1500];
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:46:37
[INFO] [stderr]    |
[INFO] [stderr] 46 |                       Entry::Vacant(mut e) => {
[INFO] [stderr]    |                                     ----^
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_synchronized` is never used
[INFO] [stderr]   --> src/tcp.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl State {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] 12 |    fn is_synchronized(&self) -> bool {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `wnd`, `up`, `wl1`, and `wl2` are never read
[INFO] [stderr]   --> src/tcp.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub struct SendSequenceSpace {
[INFO] [stderr]    |            ----------------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 47 |    wnd: u16,
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 48 |    /// send urgent pointer
[INFO] [stderr] 49 |    up:  bool,
[INFO] [stderr]    |    ^^
[INFO] [stderr] 50 |    /// segment sequence number used for last window update
[INFO] [stderr] 51 |    wl1: usize,
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 52 |    /// segment acknowledgment number used for last window update
[INFO] [stderr] 53 |    wl2: usize,
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `up` and `irs` are never read
[INFO] [stderr]   --> src/tcp.rs:75:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub struct RecvSequenceSpace {
[INFO] [stderr]    |            ----------------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 75 |    up: bool,
[INFO] [stderr]    |    ^^
[INFO] [stderr] 76 |    /// initial receive sequence number
[INFO] [stderr] 77 |    irs: u32
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `send_rst` is never used
[INFO] [stderr]    --> src/tcp.rs:112:11
[INFO] [stderr]     |
[INFO] [stderr] 80  | impl Connection {
[INFO] [stderr]     | --------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 112 |    pub fn send_rst(&mut self, nic: &mut tun_tap::Iface) -> io::Result<()>{
[INFO] [stderr]     |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/tcp.rs:89:7
[INFO] [stderr]    |
[INFO] [stderr] 89 |       self.ip.set_payload_len(size - self.ip.header_len() as usize);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 89 |       let _ = self.ip.set_payload_len(size - self.ip.header_len() as usize);
[INFO] [stderr]    |       +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/tcp.rs:95:7
[INFO] [stderr]    |
[INFO] [stderr] 95 |       self.ip.write(&mut unwritten);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 95 |       let _ = self.ip.write(&mut unwritten);
[INFO] [stderr]    |       +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/tcp.rs:96:7
[INFO] [stderr]    |
[INFO] [stderr] 96 |       self.tcp.write(&mut unwritten);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 96 |       let _ = self.tcp.write(&mut unwritten);
[INFO] [stderr]    |       +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `trust` (bin "trust" test) generated 13 warnings (run `cargo fix --bin "trust" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/trust-ebe9dce6f486fa49)
[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] running `Command { std: "docker" "inspect" "d8d36e756e58b88b4c41cf6af0716c27bf30cfb03da732e3d55b40ab82608e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8d36e756e58b88b4c41cf6af0716c27bf30cfb03da732e3d55b40ab82608e39", kill_on_drop: false }`
[INFO] [stdout] d8d36e756e58b88b4c41cf6af0716c27bf30cfb03da732e3d55b40ab82608e39
