[INFO] cloning repository https://github.com/skagur-k/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/skagur-k/tcp-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskagur-k%2Ftcp-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskagur-k%2Ftcp-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9cc809c37a6fc527b82780adb52fa15d3f5c3de5 [INFO] checking skagur-k/tcp-rust against master#e29821ff85a2a3000d226f99f62f89464028d5d6 for pr-111505 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskagur-k%2Ftcp-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/skagur-k/tcp-rust on toolchain e29821ff85a2a3000d226f99f62f89464028d5d6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/skagur-k/tcp-rust [INFO] finished tweaking git repo https://github.com/skagur-k/tcp-rust [INFO] tweaked toml for git repo https://github.com/skagur-k/tcp-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/skagur-k/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" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-core v0.1.18 [INFO] [stderr] Downloaded etherparse v0.10.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f07a00cc8f551d12c81f9366da9ece83d30a8ccfb99724c37028da4df85a406e [INFO] running `Command { std: "docker" "start" "-a" "f07a00cc8f551d12c81f9366da9ece83d30a8ccfb99724c37028da4df85a406e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f07a00cc8f551d12c81f9366da9ece83d30a8ccfb99724c37028da4df85a406e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f07a00cc8f551d12c81f9366da9ece83d30a8ccfb99724c37028da4df85a406e", kill_on_drop: false }` [INFO] [stdout] f07a00cc8f551d12c81f9366da9ece83d30a8ccfb99724c37028da4df85a406e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f9d1ac946cb79aa6f8101cd99b0d7328b716080a425aabac4faba28b72f1086e [INFO] running `Command { std: "docker" "start" "-a" "f9d1ac946cb79aa6f8101cd99b0d7328b716080a425aabac4faba28b72f1086e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking slab v0.4.5 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Compiling tun-tap v0.1.2 [INFO] [stderr] Checking etherparse v0.10.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking tokio-fs v0.1.7 [INFO] [stderr] Checking tokio-uds v0.2.7 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.18 [INFO] [stderr] Checking tcp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `unwritten` [INFO] [stdout] --> src/tcp.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | let mut unwritten = &mut buf[..]; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwritten` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unwritten` [INFO] [stdout] --> src/tcp.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | let mut unwritten = &mut buf[..]; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwritten` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp.rs:59:138 [INFO] [stdout] | [INFO] [stdout] 59 | ...therparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> io::Result> { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp.rs:59:138 [INFO] [stdout] | [INFO] [stdout] 59 | ...therparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> io::Result> { [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:61:13 [INFO] [stdout] | [INFO] [stdout] 61 | let mut unwritten = &mut buf[..]; [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/tcp.rs:61:13 [INFO] [stdout] | [INFO] [stdout] 61 | let mut unwritten = &mut buf[..]; [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/tcp.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut c = Connection { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | let mut c = Connection { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | ... let mut ip = etherparse::Ipv4Header::new(syn_ack.header_len(), 64, etherparse::IpNumber::Tcp, ip_header.destination_addr().octets()... [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | ... let mut ip = etherparse::Ipv4Header::new(syn_ack.header_len(), 64, etherparse::IpNumber::Tcp, ip_header.destination_addr().octets()... [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp.rs:118:38 [INFO] [stdout] | [INFO] [stdout] 118 | pub fn on_packet<'a> (&mut self, nic: &mut tun_tap::Iface, ip_header: etherparse::Ipv4HeaderSlice<'a>, tcp_header: etherparse::TcpHea... [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp.rs:118:38 [INFO] [stdout] | [INFO] [stdout] 118 | pub fn on_packet<'a> (&mut self, nic: &mut tun_tap::Iface, ip_header: etherparse::Ipv4HeaderSlice<'a>, tcp_header: etherparse::TcpHea... [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_header` [INFO] [stdout] --> src/tcp.rs:118:64 [INFO] [stdout] | [INFO] [stdout] 118 | ...nic: &mut tun_tap::Iface, ip_header: etherparse::Ipv4HeaderSlice<'a>, tcp_header: etherparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> ... [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_header` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_header` [INFO] [stdout] --> src/tcp.rs:118:64 [INFO] [stdout] | [INFO] [stdout] 118 | ...nic: &mut tun_tap::Iface, ip_header: etherparse::Ipv4HeaderSlice<'a>, tcp_header: etherparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> ... [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_header` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tcp_header` [INFO] [stdout] --> src/tcp.rs:118:108 [INFO] [stdout] | [INFO] [stdout] 118 | ...se::Ipv4HeaderSlice<'a>, tcp_header: etherparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tcp_header` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tcp_header` [INFO] [stdout] --> src/tcp.rs:118:108 [INFO] [stdout] | [INFO] [stdout] 118 | ...se::Ipv4HeaderSlice<'a>, tcp_header: etherparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tcp_header` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp.rs:118:152 [INFO] [stdout] | [INFO] [stdout] 118 | ...therparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> io::Result<()> { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp.rs:118:152 [INFO] [stdout] | [INFO] [stdout] 118 | ...therparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> io::Result<()> { [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/main.rs:63:47 [INFO] [stdout] | [INFO] [stdout] 63 | ... Entry::Vacant(mut e) => { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:63:47 [INFO] [stdout] | [INFO] [stdout] 63 | ... Entry::Vacant(mut e) => { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Closed` and `Listen` are never constructed [INFO] [stdout] --> src/tcp.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | enum State{ [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 4 | Closed, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 5 | Listen, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Closed` and `Listen` are never constructed [INFO] [stdout] --> src/tcp.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | enum State{ [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 4 | Closed, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 5 | Listen, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `state` is never read [INFO] [stdout] --> src/tcp.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Connection{ [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 11 | state: State, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `state` is never read [INFO] [stdout] --> src/tcp.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Connection{ [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 11 | state: State, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `una`, `nxt`, `wl1`, `wl2`, and `up` are never read [INFO] [stdout] --> src/tcp.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 30 | struct SendSequenceSpace{ [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 31 | /// send unacknowledged [INFO] [stdout] 32 | una: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 33 | /// send next [INFO] [stdout] 34 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | wl1: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 39 | /// segment acknowledgement number used for last window update [INFO] [stdout] 40 | wl2: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `wnd`, `irs`, and `up` are never read [INFO] [stdout] --> src/tcp.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 47 | struct RecvSequenceSpace{ [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 51 | wnd: u16, [INFO] [stdout] | ^^^ [INFO] [stdout] 52 | /// initial receive sequence number [INFO] [stdout] 53 | irs: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 54 | /// receive urgent pointer [INFO] [stdout] 55 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `una`, `nxt`, `wl1`, `wl2`, and `up` are never read [INFO] [stdout] --> src/tcp.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 30 | struct SendSequenceSpace{ [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 31 | /// send unacknowledged [INFO] [stdout] 32 | una: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 33 | /// send next [INFO] [stdout] 34 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | wl1: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 39 | /// segment acknowledgement number used for last window update [INFO] [stdout] 40 | wl2: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `wnd`, `irs`, and `up` are never read [INFO] [stdout] --> src/tcp.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 47 | struct RecvSequenceSpace{ [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 51 | wnd: u16, [INFO] [stdout] | ^^^ [INFO] [stdout] 52 | /// initial receive sequence number [INFO] [stdout] 53 | irs: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 54 | /// receive urgent pointer [INFO] [stdout] 55 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:108:13 [INFO] [stdout] | [INFO] [stdout] 108 | ip.write(&mut unwritten); [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] 108 | let _ = ip.write(&mut unwritten); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:108:13 [INFO] [stdout] | [INFO] [stdout] 108 | ip.write(&mut unwritten); [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] 108 | let _ = ip.write(&mut unwritten); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:110:13 [INFO] [stdout] | [INFO] [stdout] 110 | syn_ack.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] 110 | let _ = syn_ack.write(&mut unwritten); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:110:13 [INFO] [stdout] | [INFO] [stdout] 110 | syn_ack.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] 110 | let _ = syn_ack.write(&mut unwritten); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.95s [INFO] running `Command { std: "docker" "inspect" "f9d1ac946cb79aa6f8101cd99b0d7328b716080a425aabac4faba28b72f1086e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f9d1ac946cb79aa6f8101cd99b0d7328b716080a425aabac4faba28b72f1086e", kill_on_drop: false }` [INFO] [stdout] f9d1ac946cb79aa6f8101cd99b0d7328b716080a425aabac4faba28b72f1086e