[INFO] cloning repository https://github.com/ashishmax31/user_net [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ashishmax31/user_net" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashishmax31%2Fuser_net", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashishmax31%2Fuser_net'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 38d8f227748a2f00cdbddef84a3d343440d1f89c [INFO] building ashishmax31/user_net against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashishmax31%2Fuser_net" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ashishmax31/user_net on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ashishmax31/user_net [INFO] finished tweaking git repo https://github.com/ashishmax31/user_net [INFO] tweaked toml for git repo https://github.com/ashishmax31/user_net written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ashishmax31/user_net 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ifstructs v0.1.1 [INFO] [stderr] Downloaded ioctl-macros v0.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5386163d49527bd59dd1d6774b240d19aad53877df9f90bcdd391beacb034b43 [INFO] running `Command { std: "docker" "start" "-a" "5386163d49527bd59dd1d6774b240d19aad53877df9f90bcdd391beacb034b43", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5386163d49527bd59dd1d6774b240d19aad53877df9f90bcdd391beacb034b43", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5386163d49527bd59dd1d6774b240d19aad53877df9f90bcdd391beacb034b43", kill_on_drop: false }` [INFO] [stdout] 5386163d49527bd59dd1d6774b240d19aad53877df9f90bcdd391beacb034b43 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6063d630cf3da5f025fa4ea24996e72c7289d20f87f5f45ab19e73a9eec82014 [INFO] running `Command { std: "docker" "start" "-a" "6063d630cf3da5f025fa4ea24996e72c7289d20f87f5f45ab19e73a9eec82014", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Compiling ppv-lite86 v0.2.9 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling hex v0.4.2 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling ioctl-macros v0.1.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling ifstructs v0.1.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling user_net v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `time` [INFO] [stdout] --> src/ethernet/ethernet.rs:16:19 [INFO] [stdout] | [INFO] [stdout] 16 | use std::{thread, time}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ethernet::EtherType` [INFO] [stdout] --> src/ethernet/mod.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | pub use ethernet::EtherType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `eth` [INFO] [stdout] --> src/ipv4/ipv4.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | eth: ðernet::Ethernet, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_eth` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `layer_3_writer` [INFO] [stdout] --> src/ipv4/udp/udp.rs:45:59 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn process_packet(frame: ethernet::EthernetFrame, layer_3_writer: &IPstackWriter) { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_layer_3_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ipv4/udp/udp.rs:49:18 [INFO] [stdout] | [INFO] [stdout] 49 | Some(mut datagram) => { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `operation`, `handle_packet`, and `build_request` are never used [INFO] [stdout] --> src/arp/arp.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 38 | impl ARP { [INFO] [stdout] | -------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 79 | fn operation(&self) -> ARPKind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 110 | fn handle_packet(data: Vec, eth_addr: [u8; 6]) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | fn build_request(data: Vec) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `hrd`, `pro`, `op`, and `tha` are never used [INFO] [stdout] --> src/arp/arp.rs:175:12 [INFO] [stdout] | [INFO] [stdout] 174 | impl ARP { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 175 | pub fn hrd(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 181 | pub fn pro(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 199 | pub fn op(&self) -> [u8; 2] { [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 213 | pub fn tha(&self) -> &[u8] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `spa` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 28 | pub trait LinkLayerWritable { [INFO] [stdout] | ----------------- method in this trait [INFO] [stdout] 29 | fn spa(&self) -> ProtocolAddr; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `value` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 45 | impl EtherType { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 55 | pub fn value(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Reading` is never constructed [INFO] [stdout] --> src/ethernet/ethernet.rs:69:5 [INFO] [stdout] | [INFO] [stdout] 67 | enum State { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 68 | Ready, [INFO] [stdout] 69 | Reading, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `build_response_frame` and `src` are never used [INFO] [stdout] --> src/ethernet/ethernet.rs:95:12 [INFO] [stdout] | [INFO] [stdout] 92 | impl EthernetFrame { [INFO] [stdout] | ------------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 95 | pub fn build_response_frame(&self, payload: T) -> Self [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | pub fn src(&self) -> HwAddr { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `set_socket_state` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:133:8 [INFO] [stdout] | [INFO] [stdout] 128 | impl Ethernet { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 133 | fn set_socket_state(&mut self, to_state: State) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ECHO_REQ` is never used [INFO] [stdout] --> src/ipv4/icmp/icmp.rs:14:7 [INFO] [stdout] | [INFO] [stdout] 14 | const ECHO_REQ: u8 = 8u8; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/ipv4/ipv4.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 40 | pub struct IpHeader { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 41 | version: u8, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 42 | ihl: u8, [INFO] [stdout] | ^^^ [INFO] [stdout] 43 | ecn: u8, [INFO] [stdout] 44 | t_len: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 45 | id: u16, [INFO] [stdout] | ^^ [INFO] [stdout] 46 | flags: u8, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 47 | frag_offset: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 48 | ttl: u8, [INFO] [stdout] | ^^^ [INFO] [stdout] 49 | pub proto: Protocol, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 50 | chksm: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `src_str`, `src_from_bytes`, `dst_from_bytes`, and `payload_from_bytes` are never used [INFO] [stdout] --> src/ipv4/ipv4.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 116 | impl IPv4 { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 189 | pub fn src_str(&self) -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 254 | pub fn src_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 258 | pub fn dst_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 262 | pub fn payload_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dst_port`, `length`, `chksm`, and `set_chksm` are never used [INFO] [stdout] --> src/ipv4/udp/udp.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl UdpHeader { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn dst_port(&self) -> u16 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn length(&self) -> u16 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn chksm(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn set_chksm(&mut self, value: u16) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `addr_identifier` is never read [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct UdpSocket { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 27 | addr: std::net::SocketAddr, [INFO] [stdout] 28 | addr_identifier: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `htons` is never used [INFO] [stdout] --> src/net_util.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn htons(input: &[u8]) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/ethernet/ethernet.rs:288:28 [INFO] [stdout] | [INFO] [stdout] 288 | panic!(err.desc()); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 288 | panic!("{}", err.desc()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:275:44 [INFO] [stdout] | [INFO] [stdout] 275 | let ip_stack_writer = unsafe { LAYER3_WRITER.clone().unwrap() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.06s [INFO] running `Command { std: "docker" "inspect" "6063d630cf3da5f025fa4ea24996e72c7289d20f87f5f45ab19e73a9eec82014", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6063d630cf3da5f025fa4ea24996e72c7289d20f87f5f45ab19e73a9eec82014", kill_on_drop: false }` [INFO] [stdout] 6063d630cf3da5f025fa4ea24996e72c7289d20f87f5f45ab19e73a9eec82014 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 91d8e2defb1888810d396414a0bae3bd67e7b1d2984d229a8b0885f632113fc1 [INFO] running `Command { std: "docker" "start" "-a" "91d8e2defb1888810d396414a0bae3bd67e7b1d2984d229a8b0885f632113fc1", kill_on_drop: false }` [INFO] [stderr] Compiling user_net v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `time` [INFO] [stdout] --> src/ethernet/ethernet.rs:16:19 [INFO] [stdout] | [INFO] [stdout] 16 | use std::{thread, time}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ethernet::EtherType` [INFO] [stdout] --> src/ethernet/mod.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | pub use ethernet::EtherType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `eth` [INFO] [stdout] --> src/ipv4/ipv4.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | eth: ðernet::Ethernet, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_eth` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `layer_3_writer` [INFO] [stdout] --> src/ipv4/udp/udp.rs:45:59 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn process_packet(frame: ethernet::EthernetFrame, layer_3_writer: &IPstackWriter) { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_layer_3_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ipv4/udp/udp.rs:49:18 [INFO] [stdout] | [INFO] [stdout] 49 | Some(mut datagram) => { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `operation`, `handle_packet`, and `build_request` are never used [INFO] [stdout] --> src/arp/arp.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 38 | impl ARP { [INFO] [stdout] | -------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 79 | fn operation(&self) -> ARPKind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 110 | fn handle_packet(data: Vec, eth_addr: [u8; 6]) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | fn build_request(data: Vec) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `hrd`, `pro`, `op`, and `tha` are never used [INFO] [stdout] --> src/arp/arp.rs:175:12 [INFO] [stdout] | [INFO] [stdout] 174 | impl ARP { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 175 | pub fn hrd(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 181 | pub fn pro(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 199 | pub fn op(&self) -> [u8; 2] { [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 213 | pub fn tha(&self) -> &[u8] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `spa` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 28 | pub trait LinkLayerWritable { [INFO] [stdout] | ----------------- method in this trait [INFO] [stdout] 29 | fn spa(&self) -> ProtocolAddr; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `value` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 45 | impl EtherType { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 55 | pub fn value(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Reading` is never constructed [INFO] [stdout] --> src/ethernet/ethernet.rs:69:5 [INFO] [stdout] | [INFO] [stdout] 67 | enum State { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 68 | Ready, [INFO] [stdout] 69 | Reading, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `build_response_frame` and `src` are never used [INFO] [stdout] --> src/ethernet/ethernet.rs:95:12 [INFO] [stdout] | [INFO] [stdout] 92 | impl EthernetFrame { [INFO] [stdout] | ------------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 95 | pub fn build_response_frame(&self, payload: T) -> Self [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | pub fn src(&self) -> HwAddr { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `set_socket_state` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:133:8 [INFO] [stdout] | [INFO] [stdout] 128 | impl Ethernet { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 133 | fn set_socket_state(&mut self, to_state: State) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ECHO_REQ` is never used [INFO] [stdout] --> src/ipv4/icmp/icmp.rs:14:7 [INFO] [stdout] | [INFO] [stdout] 14 | const ECHO_REQ: u8 = 8u8; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/ipv4/ipv4.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 40 | pub struct IpHeader { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 41 | version: u8, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 42 | ihl: u8, [INFO] [stdout] | ^^^ [INFO] [stdout] 43 | ecn: u8, [INFO] [stdout] 44 | t_len: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 45 | id: u16, [INFO] [stdout] | ^^ [INFO] [stdout] 46 | flags: u8, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 47 | frag_offset: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 48 | ttl: u8, [INFO] [stdout] | ^^^ [INFO] [stdout] 49 | pub proto: Protocol, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 50 | chksm: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `src_str`, `src_from_bytes`, `dst_from_bytes`, and `payload_from_bytes` are never used [INFO] [stdout] --> src/ipv4/ipv4.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 116 | impl IPv4 { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 189 | pub fn src_str(&self) -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 254 | pub fn src_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 258 | pub fn dst_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 262 | pub fn payload_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dst_port`, `length`, `chksm`, and `set_chksm` are never used [INFO] [stdout] --> src/ipv4/udp/udp.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl UdpHeader { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn dst_port(&self) -> u16 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn length(&self) -> u16 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn chksm(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn set_chksm(&mut self, value: u16) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `addr_identifier` is never read [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct UdpSocket { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 27 | addr: std::net::SocketAddr, [INFO] [stdout] 28 | addr_identifier: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `htons` is never used [INFO] [stdout] --> src/net_util.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn htons(input: &[u8]) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/ethernet/ethernet.rs:288:28 [INFO] [stdout] | [INFO] [stdout] 288 | panic!(err.desc()); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 288 | panic!("{}", err.desc()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:275:44 [INFO] [stdout] | [INFO] [stdout] 275 | let ip_stack_writer = unsafe { LAYER3_WRITER.clone().unwrap() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `time` [INFO] [stdout] --> src/ethernet/ethernet.rs:16:19 [INFO] [stdout] | [INFO] [stdout] 16 | use std::{thread, time}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ethernet::EtherType` [INFO] [stdout] --> src/ethernet/mod.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | pub use ethernet::EtherType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `eth` [INFO] [stdout] --> src/ipv4/ipv4.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | eth: ðernet::Ethernet, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_eth` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `layer_3_writer` [INFO] [stdout] --> src/ipv4/udp/udp.rs:45:59 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn process_packet(frame: ethernet::EthernetFrame, layer_3_writer: &IPstackWriter) { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_layer_3_writer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ipv4/udp/udp.rs:49:18 [INFO] [stdout] | [INFO] [stdout] 49 | Some(mut datagram) => { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `operation`, `handle_packet`, and `build_request` are never used [INFO] [stdout] --> src/arp/arp.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 38 | impl ARP { [INFO] [stdout] | -------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 79 | fn operation(&self) -> ARPKind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 110 | fn handle_packet(data: Vec, eth_addr: [u8; 6]) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | fn build_request(data: Vec) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `hrd`, `pro`, `op`, and `tha` are never used [INFO] [stdout] --> src/arp/arp.rs:175:12 [INFO] [stdout] | [INFO] [stdout] 174 | impl ARP { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 175 | pub fn hrd(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 181 | pub fn pro(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 199 | pub fn op(&self) -> [u8; 2] { [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 213 | pub fn tha(&self) -> &[u8] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `spa` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 28 | pub trait LinkLayerWritable { [INFO] [stdout] | ----------------- method in this trait [INFO] [stdout] 29 | fn spa(&self) -> ProtocolAddr; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `value` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 45 | impl EtherType { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 55 | pub fn value(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Reading` is never constructed [INFO] [stdout] --> src/ethernet/ethernet.rs:69:5 [INFO] [stdout] | [INFO] [stdout] 67 | enum State { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 68 | Ready, [INFO] [stdout] 69 | Reading, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `build_response_frame` and `src` are never used [INFO] [stdout] --> src/ethernet/ethernet.rs:95:12 [INFO] [stdout] | [INFO] [stdout] 92 | impl EthernetFrame { [INFO] [stdout] | ------------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 95 | pub fn build_response_frame(&self, payload: T) -> Self [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | pub fn src(&self) -> HwAddr { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `set_socket_state` is never used [INFO] [stdout] --> src/ethernet/ethernet.rs:133:8 [INFO] [stdout] | [INFO] [stdout] 128 | impl Ethernet { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 133 | fn set_socket_state(&mut self, to_state: State) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ECHO_REQ` is never used [INFO] [stdout] --> src/ipv4/icmp/icmp.rs:14:7 [INFO] [stdout] | [INFO] [stdout] 14 | const ECHO_REQ: u8 = 8u8; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/ipv4/ipv4.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 40 | pub struct IpHeader { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 41 | version: u8, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 42 | ihl: u8, [INFO] [stdout] | ^^^ [INFO] [stdout] 43 | ecn: u8, [INFO] [stdout] 44 | t_len: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 45 | id: u16, [INFO] [stdout] | ^^ [INFO] [stdout] 46 | flags: u8, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 47 | frag_offset: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 48 | ttl: u8, [INFO] [stdout] | ^^^ [INFO] [stdout] 49 | pub proto: Protocol, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 50 | chksm: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `src_str`, `src_from_bytes`, `dst_from_bytes`, and `payload_from_bytes` are never used [INFO] [stdout] --> src/ipv4/ipv4.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 116 | impl IPv4 { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 189 | pub fn src_str(&self) -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 254 | pub fn src_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 258 | pub fn dst_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 262 | pub fn payload_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dst_port`, `length`, `chksm`, and `set_chksm` are never used [INFO] [stdout] --> src/ipv4/udp/udp.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl UdpHeader { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn dst_port(&self) -> u16 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn length(&self) -> u16 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn chksm(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn set_chksm(&mut self, value: u16) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `addr_identifier` is never read [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct UdpSocket { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 27 | addr: std::net::SocketAddr, [INFO] [stdout] 28 | addr_identifier: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/ethernet/ethernet.rs:288:28 [INFO] [stdout] | [INFO] [stdout] 288 | panic!(err.desc()); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 288 | panic!("{}", err.desc()); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:275:44 [INFO] [stdout] | [INFO] [stdout] 275 | let ip_stack_writer = unsafe { LAYER3_WRITER.clone().unwrap() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "91d8e2defb1888810d396414a0bae3bd67e7b1d2984d229a8b0885f632113fc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91d8e2defb1888810d396414a0bae3bd67e7b1d2984d229a8b0885f632113fc1", kill_on_drop: false }` [INFO] [stdout] 91d8e2defb1888810d396414a0bae3bd67e7b1d2984d229a8b0885f632113fc1