[INFO] cloning repository https://github.com/noormohammedb/rust-tcp-implementation [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/noormohammedb/rust-tcp-implementation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoormohammedb%2Frust-tcp-implementation", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoormohammedb%2Frust-tcp-implementation'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3f31a26c074cd0c0a9dd06f830c68d06701d89c6 [INFO] checking noormohammedb/rust-tcp-implementation against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoormohammedb%2Frust-tcp-implementation" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/noormohammedb/rust-tcp-implementation on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/noormohammedb/rust-tcp-implementation [INFO] finished tweaking git repo https://github.com/noormohammedb/rust-tcp-implementation [INFO] tweaked toml for git repo https://github.com/noormohammedb/rust-tcp-implementation written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/noormohammedb/rust-tcp-implementation 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tun-tap v0.1.3 [INFO] [stderr] Downloaded parking_lot_core v0.6.3 [INFO] [stderr] Downloaded etherparse v0.13.0 [INFO] [stderr] Downloaded tokio-core v0.1.18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 006ad2e1ac3d19680eb68bb16190023fc202a280d16ab094a5dcad1be22c6694 [INFO] running `Command { std: "docker" "start" "-a" "006ad2e1ac3d19680eb68bb16190023fc202a280d16ab094a5dcad1be22c6694", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "006ad2e1ac3d19680eb68bb16190023fc202a280d16ab094a5dcad1be22c6694", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "006ad2e1ac3d19680eb68bb16190023fc202a280d16ab094a5dcad1be22c6694", kill_on_drop: false }` [INFO] [stdout] 006ad2e1ac3d19680eb68bb16190023fc202a280d16ab094a5dcad1be22c6694 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5e0ec95bdb27cd9b1392935d6956df1e350dbaf3facab311647a1ad39b56db55 [INFO] running `Command { std: "docker" "start" "-a" "5e0ec95bdb27cd9b1392935d6956df1e350dbaf3facab311647a1ad39b56db55", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.146 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling cc v1.0.79 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking arrayvec v0.7.4 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking etherparse v0.13.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling parking_lot_core v0.6.3 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Compiling tun-tap v0.1.3 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking num_cpus v1.15.0 [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-timer v0.2.13 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [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-udp v0.1.6 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.18 [INFO] [stderr] Checking trust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:87:5 [INFO] [stdout] | [INFO] [stdout] 21 | / loop { [INFO] [stdout] 22 | | let nbytes = nic.recv(&mut buf[..])?; [INFO] [stdout] 23 | | // let ether_flags = u16::from_be_bytes([buf[0], buf[1]]); [INFO] [stdout] 24 | | // let ether_proto = u16::from_be_bytes([buf[2], buf[3]]); [INFO] [stdout] ... | [INFO] [stdout] 85 | | } [INFO] [stdout] 86 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 87 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:87:5 [INFO] [stdout] | [INFO] [stdout] 21 | / loop { [INFO] [stdout] 22 | | let nbytes = nic.recv(&mut buf[..])?; [INFO] [stdout] 23 | | // let ether_flags = u16::from_be_bytes([buf[0], buf[1]]); [INFO] [stdout] 24 | | // let ether_proto = u16::from_be_bytes([buf[2], buf[3]]); [INFO] [stdout] ... | [INFO] [stdout] 85 | | } [INFO] [stdout] 86 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 87 | 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: `unwritten` [INFO] [stdout] --> src/tcp_state.rs:158:13 [INFO] [stdout] | [INFO] [stdout] 158 | let unwritten = { [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_state.rs:158:13 [INFO] [stdout] | [INFO] [stdout] 158 | let unwritten = { [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: variable does not need to be mutable [INFO] [stdout] --> src/tcp_state.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | let mut c = Connection { [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_state.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | let mut c = Connection { [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_state.rs:147:13 [INFO] [stdout] | [INFO] [stdout] 147 | let mut syn_ack_ip_packet = Ipv4Header::new( [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp_state.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | nic: &mut tun_tap::Iface, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp_state.rs:147:13 [INFO] [stdout] | [INFO] [stdout] 147 | let mut syn_ack_ip_packet = Ipv4Header::new( [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iph` [INFO] [stdout] --> src/tcp_state.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | iph: Ipv4HeaderSlice, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_iph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp_state.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | nic: &mut tun_tap::Iface, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tcph` [INFO] [stdout] --> src/tcp_state.rs:179:9 [INFO] [stdout] | [INFO] [stdout] 179 | tcph: TcpHeaderSlice, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tcph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iph` [INFO] [stdout] --> src/tcp_state.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | iph: Ipv4HeaderSlice, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_iph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp_state.rs:180:9 [INFO] [stdout] | [INFO] [stdout] 180 | data: &[u8], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tcph` [INFO] [stdout] --> src/tcp_state.rs:179:9 [INFO] [stdout] | [INFO] [stdout] 179 | tcph: TcpHeaderSlice, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tcph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp_state.rs:180:9 [INFO] [stdout] | [INFO] [stdout] 180 | data: &[u8], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_hr_sz` [INFO] [stdout] --> src/main.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let ip_hr_sz = 20; // min ip header size [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_hr_sz` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_hr_sz` [INFO] [stdout] --> src/main.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let ip_hr_sz = 20; // min ip header size [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_hr_sz` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `packet_version` [INFO] [stdout] --> src/main.rs:38:21 [INFO] [stdout] | [INFO] [stdout] 38 | let packet_version = iph.version(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet_version` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t_len` [INFO] [stdout] --> src/main.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | let t_len = iph.total_len(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_t_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `packet_version` [INFO] [stdout] --> src/main.rs:38:21 [INFO] [stdout] | [INFO] [stdout] 38 | let packet_version = iph.version(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet_version` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p_len` [INFO] [stdout] --> src/main.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 43 | let p_len = iph.payload_len(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_p_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t_len` [INFO] [stdout] --> src/main.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | let t_len = iph.total_len(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_t_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p_len` [INFO] [stdout] --> src/main.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 43 | let p_len = iph.payload_len(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_p_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:43 [INFO] [stdout] | [INFO] [stdout] 69 | ... Entry::Vacant(mut e) => { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ETHERTYPE_IPV4` is never used [INFO] [stdout] --> src/main.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | const ETHERTYPE_IPV4: u16 = 0x0800; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `state` and `recv` are never read [INFO] [stdout] --> src/tcp_state.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Connection { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 18 | state: State, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 19 | send: SendSequenceSpace, [INFO] [stdout] 20 | recv: ReceiveSequenceSpace, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Connection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `una`, `nxt`, `up`, `wl1`, and `wl2` are never read [INFO] [stdout] --> src/tcp_state.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct SendSequenceSpace { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 38 | /// send unacknowledged [INFO] [stdout] 39 | una: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 40 | /// send next [INFO] [stdout] 41 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] 46 | /// segment sequence number used for last window update [INFO] [stdout] 47 | wl1: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 48 | /// segment acknowledgment number used for last window update [INFO] [stdout] 49 | wl2: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SendSequenceSpace` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:43 [INFO] [stdout] | [INFO] [stdout] 69 | ... Entry::Vacant(mut e) => { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `nxt`, `wnd`, `up`, and `irs` are never read [INFO] [stdout] --> src/tcp_state.rs:69:5 [INFO] [stdout] | [INFO] [stdout] 67 | struct ReceiveSequenceSpace { [INFO] [stdout] | -------------------- fields in this struct [INFO] [stdout] 68 | /// RCV.NXT - receive next [INFO] [stdout] 69 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 70 | /// RCV.WND - receive window [INFO] [stdout] 71 | wnd: u16, [INFO] [stdout] | ^^^ [INFO] [stdout] 72 | /// RCV.UP - receive urgent pointer [INFO] [stdout] 73 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] 74 | /// IRS - initial receive sequence number [INFO] [stdout] 75 | irs: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ReceiveSequenceSpace` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ETHERTYPE_IPV4` is never used [INFO] [stdout] --> src/main.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | const ETHERTYPE_IPV4: u16 = 0x0800; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `state` and `recv` are never read [INFO] [stdout] --> src/tcp_state.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Connection { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 18 | state: State, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 19 | send: SendSequenceSpace, [INFO] [stdout] 20 | recv: ReceiveSequenceSpace, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Connection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `una`, `nxt`, `up`, `wl1`, and `wl2` are never read [INFO] [stdout] --> src/tcp_state.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct SendSequenceSpace { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 38 | /// send unacknowledged [INFO] [stdout] 39 | una: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 40 | /// send next [INFO] [stdout] 41 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] 46 | /// segment sequence number used for last window update [INFO] [stdout] 47 | wl1: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 48 | /// segment acknowledgment number used for last window update [INFO] [stdout] 49 | wl2: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SendSequenceSpace` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `nxt`, `wnd`, `up`, and `irs` are never read [INFO] [stdout] --> src/tcp_state.rs:69:5 [INFO] [stdout] | [INFO] [stdout] 67 | struct ReceiveSequenceSpace { [INFO] [stdout] | -------------------- fields in this struct [INFO] [stdout] 68 | /// RCV.NXT - receive next [INFO] [stdout] 69 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 70 | /// RCV.WND - receive window [INFO] [stdout] 71 | wnd: u16, [INFO] [stdout] | ^^^ [INFO] [stdout] 72 | /// RCV.UP - receive urgent pointer [INFO] [stdout] 73 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] 74 | /// IRS - initial receive sequence number [INFO] [stdout] 75 | irs: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ReceiveSequenceSpace` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp_state.rs:171:9 [INFO] [stdout] | [INFO] [stdout] 171 | nic.send(&buf[..syn_ack_ip_packet.header_len() + syn_ack.header_len() as usize + ip_hr_of]); [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] 171 | let _ = nic.send(&buf[..syn_ack_ip_packet.header_len() + syn_ack.header_len() as usize + ip_hr_of]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp_state.rs:171:9 [INFO] [stdout] | [INFO] [stdout] 171 | nic.send(&buf[..syn_ack_ip_packet.header_len() + syn_ack.header_len() as usize + ip_hr_of]); [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] 171 | let _ = nic.send(&buf[..syn_ack_ip_packet.header_len() + syn_ack.header_len() as usize + ip_hr_of]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.91s [INFO] running `Command { std: "docker" "inspect" "5e0ec95bdb27cd9b1392935d6956df1e350dbaf3facab311647a1ad39b56db55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e0ec95bdb27cd9b1392935d6956df1e350dbaf3facab311647a1ad39b56db55", kill_on_drop: false }` [INFO] [stdout] 5e0ec95bdb27cd9b1392935d6956df1e350dbaf3facab311647a1ad39b56db55 [INFO] checking noormohammedb/rust-tcp-implementation against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoormohammedb%2Frust-tcp-implementation" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/noormohammedb/rust-tcp-implementation on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/noormohammedb/rust-tcp-implementation [INFO] finished tweaking git repo https://github.com/noormohammedb/rust-tcp-implementation [INFO] tweaked toml for git repo https://github.com/noormohammedb/rust-tcp-implementation written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/noormohammedb/rust-tcp-implementation 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 50403e7c0b9d3916c203f984547d30ac4be94d626aae96b1159bb728fd14ce51 [INFO] running `Command { std: "docker" "start" "-a" "50403e7c0b9d3916c203f984547d30ac4be94d626aae96b1159bb728fd14ce51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "50403e7c0b9d3916c203f984547d30ac4be94d626aae96b1159bb728fd14ce51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "50403e7c0b9d3916c203f984547d30ac4be94d626aae96b1159bb728fd14ce51", kill_on_drop: false }` [INFO] [stdout] 50403e7c0b9d3916c203f984547d30ac4be94d626aae96b1159bb728fd14ce51 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0176f75102e18bc113bdc0a95bd412ae701b2acea151afccc56d32fbe3f3ae3c [INFO] running `Command { std: "docker" "start" "-a" "0176f75102e18bc113bdc0a95bd412ae701b2acea151afccc56d32fbe3f3ae3c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.146 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling cc v1.0.79 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking arrayvec v0.7.4 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking etherparse v0.13.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling parking_lot_core v0.6.3 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Compiling tun-tap v0.1.3 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking num_cpus v1.15.0 [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-io v0.1.13 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [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-udp v0.1.6 [INFO] [stderr] Checking tokio-uds v0.2.7 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.18 [INFO] [stderr] Checking trust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:87:5 [INFO] [stdout] | [INFO] [stdout] 21 | / loop { [INFO] [stdout] 22 | | let nbytes = nic.recv(&mut buf[..])?; [INFO] [stdout] 23 | | // let ether_flags = u16::from_be_bytes([buf[0], buf[1]]); [INFO] [stdout] 24 | | // let ether_proto = u16::from_be_bytes([buf[2], buf[3]]); [INFO] [stdout] ... | [INFO] [stdout] 85 | | } [INFO] [stdout] 86 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 87 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:87:5 [INFO] [stdout] | [INFO] [stdout] 21 | / loop { [INFO] [stdout] 22 | | let nbytes = nic.recv(&mut buf[..])?; [INFO] [stdout] 23 | | // let ether_flags = u16::from_be_bytes([buf[0], buf[1]]); [INFO] [stdout] 24 | | // let ether_proto = u16::from_be_bytes([buf[2], buf[3]]); [INFO] [stdout] ... | [INFO] [stdout] 85 | | } [INFO] [stdout] 86 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 87 | 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: `unwritten` [INFO] [stdout] --> src/tcp_state.rs:158:13 [INFO] [stdout] | [INFO] [stdout] 158 | let unwritten = { [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_state.rs:158:13 [INFO] [stdout] | [INFO] [stdout] 158 | let unwritten = { [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: variable does not need to be mutable [INFO] [stdout] --> src/tcp_state.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | let mut c = Connection { [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_state.rs:147:13 [INFO] [stdout] | [INFO] [stdout] 147 | let mut syn_ack_ip_packet = Ipv4Header::new( [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_state.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | let mut c = Connection { [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: unused variable: `nic` [INFO] [stdout] --> src/tcp_state.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | nic: &mut tun_tap::Iface, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp_state.rs:147:13 [INFO] [stdout] | [INFO] [stdout] 147 | let mut syn_ack_ip_packet = Ipv4Header::new( [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iph` [INFO] [stdout] --> src/tcp_state.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | iph: Ipv4HeaderSlice, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_iph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tcph` [INFO] [stdout] --> src/tcp_state.rs:179:9 [INFO] [stdout] | [INFO] [stdout] 179 | tcph: TcpHeaderSlice, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tcph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp_state.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | nic: &mut tun_tap::Iface, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp_state.rs:180:9 [INFO] [stdout] | [INFO] [stdout] 180 | data: &[u8], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iph` [INFO] [stdout] --> src/tcp_state.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | iph: Ipv4HeaderSlice, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_iph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tcph` [INFO] [stdout] --> src/tcp_state.rs:179:9 [INFO] [stdout] | [INFO] [stdout] 179 | tcph: TcpHeaderSlice, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_tcph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp_state.rs:180:9 [INFO] [stdout] | [INFO] [stdout] 180 | data: &[u8], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_hr_sz` [INFO] [stdout] --> src/main.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let ip_hr_sz = 20; // min ip header size [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_hr_sz` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `packet_version` [INFO] [stdout] --> src/main.rs:38:21 [INFO] [stdout] | [INFO] [stdout] 38 | let packet_version = iph.version(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet_version` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t_len` [INFO] [stdout] --> src/main.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | let t_len = iph.total_len(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_t_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ip_hr_sz` [INFO] [stdout] --> src/main.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let ip_hr_sz = 20; // min ip header size [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_hr_sz` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p_len` [INFO] [stdout] --> src/main.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 43 | let p_len = iph.payload_len(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_p_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `packet_version` [INFO] [stdout] --> src/main.rs:38:21 [INFO] [stdout] | [INFO] [stdout] 38 | let packet_version = iph.version(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet_version` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t_len` [INFO] [stdout] --> src/main.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | let t_len = iph.total_len(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_t_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p_len` [INFO] [stdout] --> src/main.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 43 | let p_len = iph.payload_len(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_p_len` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:69:43 [INFO] [stdout] | [INFO] [stdout] 69 | ... 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:69:43 [INFO] [stdout] | [INFO] [stdout] 69 | ... Entry::Vacant(mut e) => { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ETHERTYPE_IPV4` is never used [INFO] [stdout] --> src/main.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | const ETHERTYPE_IPV4: u16 = 0x0800; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `state` and `recv` are never read [INFO] [stdout] --> src/tcp_state.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Connection { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 18 | state: State, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 19 | send: SendSequenceSpace, [INFO] [stdout] 20 | recv: ReceiveSequenceSpace, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Connection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `una`, `nxt`, `up`, `wl1`, and `wl2` are never read [INFO] [stdout] --> src/tcp_state.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct SendSequenceSpace { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 38 | /// send unacknowledged [INFO] [stdout] 39 | una: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 40 | /// send next [INFO] [stdout] 41 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] 46 | /// segment sequence number used for last window update [INFO] [stdout] 47 | wl1: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 48 | /// segment acknowledgment number used for last window update [INFO] [stdout] 49 | wl2: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SendSequenceSpace` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ETHERTYPE_IPV4` is never used [INFO] [stdout] --> src/main.rs:4:7 [INFO] [stdout] | [INFO] [stdout] 4 | const ETHERTYPE_IPV4: u16 = 0x0800; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `nxt`, `wnd`, `up`, and `irs` are never read [INFO] [stdout] --> src/tcp_state.rs:69:5 [INFO] [stdout] | [INFO] [stdout] 67 | struct ReceiveSequenceSpace { [INFO] [stdout] | -------------------- fields in this struct [INFO] [stdout] 68 | /// RCV.NXT - receive next [INFO] [stdout] 69 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 70 | /// RCV.WND - receive window [INFO] [stdout] 71 | wnd: u16, [INFO] [stdout] | ^^^ [INFO] [stdout] 72 | /// RCV.UP - receive urgent pointer [INFO] [stdout] 73 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] 74 | /// IRS - initial receive sequence number [INFO] [stdout] 75 | irs: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ReceiveSequenceSpace` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `state` and `recv` are never read [INFO] [stdout] --> src/tcp_state.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Connection { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 18 | state: State, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 19 | send: SendSequenceSpace, [INFO] [stdout] 20 | recv: ReceiveSequenceSpace, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Connection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:34:15 [INFO] [stdout] | [INFO] [stdout] 34 | match etherparse::Ipv4HeaderSlice::from_slice(&buf[ip_hr_of..nbytes]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `una`, `nxt`, `up`, `wl1`, and `wl2` are never read [INFO] [stdout] --> src/tcp_state.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct SendSequenceSpace { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 38 | /// send unacknowledged [INFO] [stdout] 39 | una: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 40 | /// send next [INFO] [stdout] 41 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] 46 | /// segment sequence number used for last window update [INFO] [stdout] 47 | wl1: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 48 | /// segment acknowledgment number used for last window update [INFO] [stdout] 49 | wl2: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `SendSequenceSpace` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `nxt`, `wnd`, `up`, and `irs` are never read [INFO] [stdout] --> src/tcp_state.rs:69:5 [INFO] [stdout] | [INFO] [stdout] 67 | struct ReceiveSequenceSpace { [INFO] [stdout] | -------------------- fields in this struct [INFO] [stdout] 68 | /// RCV.NXT - receive next [INFO] [stdout] 69 | nxt: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] 70 | /// RCV.WND - receive window [INFO] [stdout] 71 | wnd: u16, [INFO] [stdout] | ^^^ [INFO] [stdout] 72 | /// RCV.UP - receive urgent pointer [INFO] [stdout] 73 | up: bool, [INFO] [stdout] | ^^ [INFO] [stdout] 74 | /// IRS - initial receive sequence number [INFO] [stdout] 75 | irs: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ReceiveSequenceSpace` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:34:15 [INFO] [stdout] | [INFO] [stdout] 34 | match etherparse::Ipv4HeaderSlice::from_slice(&buf[ip_hr_of..nbytes]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp_state.rs:171:9 [INFO] [stdout] | [INFO] [stdout] 171 | nic.send(&buf[..syn_ack_ip_packet.header_len() + syn_ack.header_len() as usize + ip_hr_of]); [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] 171 | let _ = nic.send(&buf[..syn_ack_ip_packet.header_len() + syn_ack.header_len() as usize + ip_hr_of]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp_state.rs:171:9 [INFO] [stdout] | [INFO] [stdout] 171 | nic.send(&buf[..syn_ack_ip_packet.header_len() + syn_ack.header_len() as usize + ip_hr_of]); [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] 171 | let _ = nic.send(&buf[..syn_ack_ip_packet.header_len() + syn_ack.header_len() as usize + ip_hr_of]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `trust` (bin "trust") due to 2 previous errors; 18 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `trust` (bin "trust" test) due to 2 previous errors; 18 warnings emitted [INFO] running `Command { std: "docker" "inspect" "0176f75102e18bc113bdc0a95bd412ae701b2acea151afccc56d32fbe3f3ae3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0176f75102e18bc113bdc0a95bd412ae701b2acea151afccc56d32fbe3f3ae3c", kill_on_drop: false }` [INFO] [stdout] 0176f75102e18bc113bdc0a95bd412ae701b2acea151afccc56d32fbe3f3ae3c