[INFO] cloning repository https://github.com/henryroyal/tcprust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/henryroyal/tcprust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryroyal%2Ftcprust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryroyal%2Ftcprust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6def23ebc3123e45582b9dee3f615eea4e589a9f [INFO] testing henryroyal/tcprust against 1.98.0-beta.1 for beta-1.98-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryroyal%2Ftcprust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/henryroyal/tcprust [INFO] finished tweaking git repo https://github.com/henryroyal/tcprust [INFO] tweaked toml for git repo https://github.com/henryroyal/tcprust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/henryroyal/tcprust on toolchain 1.98.0-beta.1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/henryroyal/tcprust 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" "+1.98.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] 66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093 [INFO] running `Command { std: "docker" "start" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling futures v0.1.29 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling nodrop v0.1.14 [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Compiling cc v1.0.46 [INFO] [stderr] Compiling scoped-tls v0.1.2 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling lock_api v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling etherparse v0.8.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling tun-tap v0.1.2 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling tokio-executor v0.1.8 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling tokio-sync v0.1.7 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling tokio-threadpool v0.1.16 [INFO] [stderr] Compiling tokio-current-thread v0.1.6 [INFO] [stderr] Compiling tokio-timer v0.2.11 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling tokio-reactor v0.1.10 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-fs v0.1.6 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling tokio-udp v0.1.5 [INFO] [stderr] Compiling tokio-uds v0.2.5 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling tokio-core v0.1.17 [INFO] [stderr] Compiling tcprust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp.rs:167:13 [INFO] [stdout] | [INFO] [stdout] 167 | let mut ip = Ipv4Header::new( [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp.rs:201:13 [INFO] [stdout] | [INFO] [stdout] 201 | let mut unwritten = &mut buf[..]; [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:202:13 [INFO] [stdout] | [INFO] [stdout] 202 | let mut written = 0; [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:204:13 [INFO] [stdout] | [INFO] [stdout] 204 | let mut unwritten = { [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 143 | data: &'a [u8], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unwritten` [INFO] [stdout] --> src/tcp.rs:201:13 [INFO] [stdout] | [INFO] [stdout] 201 | let mut unwritten = &mut buf[..]; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwritten` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `written` [INFO] [stdout] --> src/tcp.rs:202:13 [INFO] [stdout] | [INFO] [stdout] 202 | let mut written = 0; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_written` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 217 | nic: &mut Iface, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iph` [INFO] [stdout] --> src/tcp.rs:218:9 [INFO] [stdout] | [INFO] [stdout] 218 | iph: Ipv4HeaderSlice<'a>, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_iph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:43 [INFO] [stdout] | [INFO] [stdout] 49 | ... Entry::Vacant(mut ve) => { [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:199:9 [INFO] [stdout] | [INFO] [stdout] 199 | c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 is len of data [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 199 | let _ = c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 is len of data [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:206:13 [INFO] [stdout] | [INFO] [stdout] 206 | 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] 206 | 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:207:13 [INFO] [stdout] | [INFO] [stdout] 207 | 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] 207 | 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:211:9 [INFO] [stdout] | [INFO] [stdout] 211 | nic.send(&buf[..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] 211 | let _ = nic.send(&buf[..unwritten]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing [INFO] [stdout] --> src/tcp.rs:231:27 [INFO] [stdout] | [INFO] [stdout] 231 | let datalen = data.deref().len() as u32; [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[u8]` does not implement `Deref`, so calling `deref` on `&[u8]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.65s [INFO] running `Command { std: "docker" "inspect" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Compiling tcprust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp.rs:167:13 [INFO] [stdout] | [INFO] [stdout] 167 | let mut ip = Ipv4Header::new( [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tcp.rs:201:13 [INFO] [stdout] | [INFO] [stdout] 201 | let mut unwritten = &mut buf[..]; [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:202:13 [INFO] [stdout] | [INFO] [stdout] 202 | let mut written = 0; [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:204:13 [INFO] [stdout] | [INFO] [stdout] 204 | let mut unwritten = { [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/tcp.rs:143:9 [INFO] [stdout] | [INFO] [stdout] 143 | data: &'a [u8], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unwritten` [INFO] [stdout] --> src/tcp.rs:201:13 [INFO] [stdout] | [INFO] [stdout] 201 | let mut unwritten = &mut buf[..]; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwritten` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `written` [INFO] [stdout] --> src/tcp.rs:202:13 [INFO] [stdout] | [INFO] [stdout] 202 | let mut written = 0; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_written` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nic` [INFO] [stdout] --> src/tcp.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 217 | nic: &mut Iface, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `iph` [INFO] [stdout] --> src/tcp.rs:218:9 [INFO] [stdout] | [INFO] [stdout] 218 | iph: Ipv4HeaderSlice<'a>, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_iph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:43 [INFO] [stdout] | [INFO] [stdout] 49 | ... Entry::Vacant(mut ve) => { [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:199:9 [INFO] [stdout] | [INFO] [stdout] 199 | c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 is len of data [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 199 | let _ = c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 is len of data [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tcp.rs:206:13 [INFO] [stdout] | [INFO] [stdout] 206 | 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] 206 | 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:207:13 [INFO] [stdout] | [INFO] [stdout] 207 | 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] 207 | 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:211:9 [INFO] [stdout] | [INFO] [stdout] 211 | nic.send(&buf[..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] 211 | let _ = nic.send(&buf[..unwritten]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing [INFO] [stdout] --> src/tcp.rs:231:27 [INFO] [stdout] | [INFO] [stdout] 231 | let datalen = data.deref().len() as u32; [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[u8]` does not implement `Deref`, so calling `deref` on `&[u8]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `Command { std: "docker" "inspect" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tcp.rs:167:13 [INFO] [stderr] | [INFO] [stderr] 167 | let mut ip = Ipv4Header::new( [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tcp.rs:201:13 [INFO] [stderr] | [INFO] [stderr] 201 | let mut unwritten = &mut buf[..]; [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tcp.rs:202:13 [INFO] [stderr] | [INFO] [stderr] 202 | let mut written = 0; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/tcp.rs:204:13 [INFO] [stderr] | [INFO] [stderr] 204 | let mut unwritten = { [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/tcp.rs:143:9 [INFO] [stderr] | [INFO] [stderr] 143 | data: &'a [u8], [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `unwritten` [INFO] [stderr] --> src/tcp.rs:201:13 [INFO] [stderr] | [INFO] [stderr] 201 | let mut unwritten = &mut buf[..]; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwritten` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `written` [INFO] [stderr] --> src/tcp.rs:202:13 [INFO] [stderr] | [INFO] [stderr] 202 | let mut written = 0; [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_written` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nic` [INFO] [stderr] --> src/tcp.rs:217:9 [INFO] [stderr] | [INFO] [stderr] 217 | nic: &mut Iface, [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_nic` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `iph` [INFO] [stderr] --> src/tcp.rs:218:9 [INFO] [stderr] | [INFO] [stderr] 218 | iph: Ipv4HeaderSlice<'a>, [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_iph` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:49:43 [INFO] [stderr] | [INFO] [stderr] 49 | ... Entry::Vacant(mut ve) => { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/tcp.rs:199:9 [INFO] [stderr] | [INFO] [stderr] 199 | c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 is len of data [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 199 | let _ = c.ip.set_payload_len(syn_ack.header_len() as usize + 0); // 0 is len of data [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/tcp.rs:206:13 [INFO] [stderr] | [INFO] [stderr] 206 | 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] 206 | let _ = ip.write(&mut unwritten); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/tcp.rs:207:13 [INFO] [stderr] | [INFO] [stderr] 207 | syn_ack.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] 207 | let _ = syn_ack.write(&mut unwritten); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/tcp.rs:211:9 [INFO] [stderr] | [INFO] [stderr] 211 | nic.send(&buf[..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] 211 | let _ = nic.send(&buf[..unwritten]); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: call to `.deref()` on a reference in this situation does nothing [INFO] [stderr] --> src/tcp.rs:231:27 [INFO] [stderr] | [INFO] [stderr] 231 | let datalen = data.deref().len() as u32; [INFO] [stderr] | ^^^^^^^^ help: remove this redundant call [INFO] [stderr] | [INFO] [stderr] = note: the type `[u8]` does not implement `Deref`, so calling `deref` on `&[u8]` copies the reference, which does not do anything and can be removed [INFO] [stderr] = note: `#[warn(noop_method_call)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `tcprust` (bin "tcprust" test) generated 15 warnings (run `cargo fix --bin "tcprust" -p tcprust --tests` to apply 11 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tcprust-60e77f6c4e649bab) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093", kill_on_drop: false }` [INFO] [stdout] 66311e0597198f20bd3d9bed8e91816fef8d8378dfc8671ee15fef31cb104093