[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] testing ashishmax31/user_net against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashishmax31%2Fuser_net" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ashishmax31/user_net on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-11/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: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1600fb129c7cc5ecec9ec35f638697be4279b20470952b40545af1d2b5ed59c1 [INFO] running `Command { std: "docker" "start" "-a" "1600fb129c7cc5ecec9ec35f638697be4279b20470952b40545af1d2b5ed59c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1600fb129c7cc5ecec9ec35f638697be4279b20470952b40545af1d2b5ed59c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1600fb129c7cc5ecec9ec35f638697be4279b20470952b40545af1d2b5ed59c1", kill_on_drop: false }` [INFO] [stdout] 1600fb129c7cc5ecec9ec35f638697be4279b20470952b40545af1d2b5ed59c1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a3be2df5da36d431b547020d80b6e2b628919888052a132ff32b375c2f138c1c [INFO] running `Command { std: "docker" "start" "-a" "a3be2df5da36d431b547020d80b6e2b628919888052a132ff32b375c2f138c1c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Compiling ioctl-macros v0.1.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling nix v0.18.0 [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 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: function is never used: `htons` [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] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `operation` [INFO] [stdout] --> src/arp/arp.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 79 | fn operation(&self) -> ARPKind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `handle_packet` [INFO] [stdout] --> src/arp/arp.rs:110:8 [INFO] [stdout] | [INFO] [stdout] 110 | fn handle_packet(data: Vec, eth_addr: [u8; 6]) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_request` [INFO] [stdout] --> src/arp/arp.rs:115:8 [INFO] [stdout] | [INFO] [stdout] 115 | fn build_request(data: Vec) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `hrd` [INFO] [stdout] --> src/arp/arp.rs:175:12 [INFO] [stdout] | [INFO] [stdout] 175 | pub fn hrd(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pro` [INFO] [stdout] --> src/arp/arp.rs:181:12 [INFO] [stdout] | [INFO] [stdout] 181 | pub fn pro(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `op` [INFO] [stdout] --> src/arp/arp.rs:199:12 [INFO] [stdout] | [INFO] [stdout] 199 | pub fn op(&self) -> [u8; 2] { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tha` [INFO] [stdout] --> src/arp/arp.rs:213:12 [INFO] [stdout] | [INFO] [stdout] 213 | pub fn tha(&self) -> &[u8] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value` [INFO] [stdout] --> src/ethernet/ethernet.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | pub fn value(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Reading` [INFO] [stdout] --> src/ethernet/ethernet.rs:69:5 [INFO] [stdout] | [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] --> src/ethernet/ethernet.rs:66:10 [INFO] [stdout] | [INFO] [stdout] 66 | #[derive(Clone, Copy)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_response_frame` [INFO] [stdout] --> src/ethernet/ethernet.rs:95:12 [INFO] [stdout] | [INFO] [stdout] 95 | pub fn build_response_frame(&self, payload: T) -> Self [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src` [INFO] [stdout] --> src/ethernet/ethernet.rs:112:12 [INFO] [stdout] | [INFO] [stdout] 112 | pub fn src(&self) -> HwAddr { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_socket_state` [INFO] [stdout] --> src/ethernet/ethernet.rs:133:8 [INFO] [stdout] | [INFO] [stdout] 133 | fn set_socket_state(&mut self, to_state: State) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `version` [INFO] [stdout] --> src/ipv4/ipv4.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | version: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `ihl` [INFO] [stdout] --> src/ipv4/ipv4.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | ihl: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `t_len` [INFO] [stdout] --> src/ipv4/ipv4.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | t_len: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `id` [INFO] [stdout] --> src/ipv4/ipv4.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | id: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `flags` [INFO] [stdout] --> src/ipv4/ipv4.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | flags: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `frag_offset` [INFO] [stdout] --> src/ipv4/ipv4.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | frag_offset: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `ttl` [INFO] [stdout] --> src/ipv4/ipv4.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | ttl: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `chksm` [INFO] [stdout] --> src/ipv4/ipv4.rs:50:5 [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src_str` [INFO] [stdout] --> src/ipv4/ipv4.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 189 | pub fn src_str(&self) -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:254:12 [INFO] [stdout] | [INFO] [stdout] 254 | pub fn src_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dst_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:258:12 [INFO] [stdout] | [INFO] [stdout] 258 | pub fn dst_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `payload_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:262:12 [INFO] [stdout] | [INFO] [stdout] 262 | pub fn payload_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `ECHO_REQ` [INFO] [stdout] --> src/ipv4/icmp/icmp.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | const ECHO_REQ: u8 = 8u8; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dst_port` [INFO] [stdout] --> src/ipv4/udp/udp.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 27 | pub fn dst_port(&self) -> u16 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length` [INFO] [stdout] --> src/ipv4/udp/udp.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn length(&self) -> u16 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `chksm` [INFO] [stdout] --> src/ipv4/udp/udp.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn chksm(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_chksm` [INFO] [stdout] --> src/ipv4/udp/udp.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn set_chksm(&mut self, value: u16) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `addr_identifier` [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:28:5 [INFO] [stdout] | [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: `#[warn(non_fmt_panics)]` on by default [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] 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: 36 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 22.49s [INFO] running `Command { std: "docker" "inspect" "a3be2df5da36d431b547020d80b6e2b628919888052a132ff32b375c2f138c1c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3be2df5da36d431b547020d80b6e2b628919888052a132ff32b375c2f138c1c", kill_on_drop: false }` [INFO] [stdout] a3be2df5da36d431b547020d80b6e2b628919888052a132ff32b375c2f138c1c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6edf45b248b3256773a309002595dff734a7ae8932439a06dca517c201509130 [INFO] running `Command { std: "docker" "start" "-a" "6edf45b248b3256773a309002595dff734a7ae8932439a06dca517c201509130", kill_on_drop: false }` [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 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: function is never used: `htons` [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] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `operation` [INFO] [stdout] --> src/arp/arp.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 79 | fn operation(&self) -> ARPKind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `handle_packet` [INFO] [stdout] --> src/arp/arp.rs:110:8 [INFO] [stdout] | [INFO] [stdout] 110 | fn handle_packet(data: Vec, eth_addr: [u8; 6]) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_request` [INFO] [stdout] --> src/arp/arp.rs:115:8 [INFO] [stdout] | [INFO] [stdout] 115 | fn build_request(data: Vec) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `hrd` [INFO] [stdout] --> src/arp/arp.rs:175:12 [INFO] [stdout] | [INFO] [stdout] 175 | pub fn hrd(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pro` [INFO] [stdout] --> src/arp/arp.rs:181:12 [INFO] [stdout] | [INFO] [stdout] 181 | pub fn pro(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `op` [INFO] [stdout] --> src/arp/arp.rs:199:12 [INFO] [stdout] | [INFO] [stdout] 199 | pub fn op(&self) -> [u8; 2] { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tha` [INFO] [stdout] --> src/arp/arp.rs:213:12 [INFO] [stdout] | [INFO] [stdout] 213 | pub fn tha(&self) -> &[u8] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value` [INFO] [stdout] --> src/ethernet/ethernet.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | pub fn value(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Reading` [INFO] [stdout] --> src/ethernet/ethernet.rs:69:5 [INFO] [stdout] | [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] --> src/ethernet/ethernet.rs:66:10 [INFO] [stdout] | [INFO] [stdout] 66 | #[derive(Clone, Copy)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_response_frame` [INFO] [stdout] --> src/ethernet/ethernet.rs:95:12 [INFO] [stdout] | [INFO] [stdout] 95 | pub fn build_response_frame(&self, payload: T) -> Self [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src` [INFO] [stdout] --> src/ethernet/ethernet.rs:112:12 [INFO] [stdout] | [INFO] [stdout] 112 | pub fn src(&self) -> HwAddr { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_socket_state` [INFO] [stdout] --> src/ethernet/ethernet.rs:133:8 [INFO] [stdout] | [INFO] [stdout] 133 | fn set_socket_state(&mut self, to_state: State) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling user_net v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `version` [INFO] [stdout] --> src/ipv4/ipv4.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | version: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `ihl` [INFO] [stdout] --> src/ipv4/ipv4.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | ihl: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `t_len` [INFO] [stdout] --> src/ipv4/ipv4.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | t_len: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `id` [INFO] [stdout] --> src/ipv4/ipv4.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | id: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `flags` [INFO] [stdout] --> src/ipv4/ipv4.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | flags: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `frag_offset` [INFO] [stdout] --> src/ipv4/ipv4.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | frag_offset: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `ttl` [INFO] [stdout] --> src/ipv4/ipv4.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | ttl: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `chksm` [INFO] [stdout] --> src/ipv4/ipv4.rs:50:5 [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src_str` [INFO] [stdout] --> src/ipv4/ipv4.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 189 | pub fn src_str(&self) -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:254:12 [INFO] [stdout] | [INFO] [stdout] 254 | pub fn src_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dst_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:258:12 [INFO] [stdout] | [INFO] [stdout] 258 | pub fn dst_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `payload_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:262:12 [INFO] [stdout] | [INFO] [stdout] 262 | pub fn payload_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `ECHO_REQ` [INFO] [stdout] --> src/ipv4/icmp/icmp.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | const ECHO_REQ: u8 = 8u8; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dst_port` [INFO] [stdout] --> src/ipv4/udp/udp.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 27 | pub fn dst_port(&self) -> u16 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length` [INFO] [stdout] --> src/ipv4/udp/udp.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn length(&self) -> u16 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `chksm` [INFO] [stdout] --> src/ipv4/udp/udp.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn chksm(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_chksm` [INFO] [stdout] --> src/ipv4/udp/udp.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn set_chksm(&mut self, value: u16) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `addr_identifier` [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:28:5 [INFO] [stdout] | [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: `#[warn(non_fmt_panics)]` on by default [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] 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: 36 warnings emitted [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 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 function is never used: `operation` [INFO] [stdout] --> src/arp/arp.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 79 | fn operation(&self) -> ARPKind { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `handle_packet` [INFO] [stdout] --> src/arp/arp.rs:110:8 [INFO] [stdout] | [INFO] [stdout] 110 | fn handle_packet(data: Vec, eth_addr: [u8; 6]) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_request` [INFO] [stdout] --> src/arp/arp.rs:115:8 [INFO] [stdout] | [INFO] [stdout] 115 | fn build_request(data: Vec) -> ARP { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `hrd` [INFO] [stdout] --> src/arp/arp.rs:175:12 [INFO] [stdout] | [INFO] [stdout] 175 | pub fn hrd(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pro` [INFO] [stdout] --> src/arp/arp.rs:181:12 [INFO] [stdout] | [INFO] [stdout] 181 | pub fn pro(&self) -> [u8; 2] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `op` [INFO] [stdout] --> src/arp/arp.rs:199:12 [INFO] [stdout] | [INFO] [stdout] 199 | pub fn op(&self) -> [u8; 2] { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tha` [INFO] [stdout] --> src/arp/arp.rs:213:12 [INFO] [stdout] | [INFO] [stdout] 213 | pub fn tha(&self) -> &[u8] { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `value` [INFO] [stdout] --> src/ethernet/ethernet.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | pub fn value(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Reading` [INFO] [stdout] --> src/ethernet/ethernet.rs:69:5 [INFO] [stdout] | [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] --> src/ethernet/ethernet.rs:66:10 [INFO] [stdout] | [INFO] [stdout] 66 | #[derive(Clone, Copy)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `build_response_frame` [INFO] [stdout] --> src/ethernet/ethernet.rs:95:12 [INFO] [stdout] | [INFO] [stdout] 95 | pub fn build_response_frame(&self, payload: T) -> Self [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src` [INFO] [stdout] --> src/ethernet/ethernet.rs:112:12 [INFO] [stdout] | [INFO] [stdout] 112 | pub fn src(&self) -> HwAddr { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_socket_state` [INFO] [stdout] --> src/ethernet/ethernet.rs:133:8 [INFO] [stdout] | [INFO] [stdout] 133 | fn set_socket_state(&mut self, to_state: State) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `version` [INFO] [stdout] --> src/ipv4/ipv4.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | version: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `ihl` [INFO] [stdout] --> src/ipv4/ipv4.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | ihl: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `t_len` [INFO] [stdout] --> src/ipv4/ipv4.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | t_len: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `id` [INFO] [stdout] --> src/ipv4/ipv4.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | id: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `flags` [INFO] [stdout] --> src/ipv4/ipv4.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | flags: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `frag_offset` [INFO] [stdout] --> src/ipv4/ipv4.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | frag_offset: 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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `ttl` [INFO] [stdout] --> src/ipv4/ipv4.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | ttl: u8, [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `chksm` [INFO] [stdout] --> src/ipv4/ipv4.rs:50:5 [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] --> src/ipv4/ipv4.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src_str` [INFO] [stdout] --> src/ipv4/ipv4.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 189 | pub fn src_str(&self) -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `src_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:254:12 [INFO] [stdout] | [INFO] [stdout] 254 | pub fn src_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dst_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:258:12 [INFO] [stdout] | [INFO] [stdout] 258 | pub fn dst_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `payload_from_bytes` [INFO] [stdout] --> src/ipv4/ipv4.rs:262:12 [INFO] [stdout] | [INFO] [stdout] 262 | pub fn payload_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `ECHO_REQ` [INFO] [stdout] --> src/ipv4/icmp/icmp.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | const ECHO_REQ: u8 = 8u8; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dst_port` [INFO] [stdout] --> src/ipv4/udp/udp.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 27 | pub fn dst_port(&self) -> u16 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length` [INFO] [stdout] --> src/ipv4/udp/udp.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn length(&self) -> u16 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `chksm` [INFO] [stdout] --> src/ipv4/udp/udp.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn chksm(&self) -> u16 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_chksm` [INFO] [stdout] --> src/ipv4/udp/udp.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn set_chksm(&mut self, value: u16) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `addr_identifier` [INFO] [stdout] --> src/ipv4/udp/udp_socket.rs:28:5 [INFO] [stdout] | [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: `#[warn(non_fmt_panics)]` on by default [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] 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: 35 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.81s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/user_net-14468c08a3f63d15) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/user_net-6739085690808820) [INFO] running `Command { std: "docker" "inspect" "6edf45b248b3256773a309002595dff734a7ae8932439a06dca517c201509130", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6edf45b248b3256773a309002595dff734a7ae8932439a06dca517c201509130", kill_on_drop: false }` [INFO] [stdout] 6edf45b248b3256773a309002595dff734a7ae8932439a06dca517c201509130 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ea66957336c6fe1d16b8e4e7e5786b50c778c4a8b905618a02023abc3ebc76c7 [INFO] running `Command { std: "docker" "start" "-a" "ea66957336c6fe1d16b8e4e7e5786b50c778c4a8b905618a02023abc3ebc76c7", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `time` [INFO] [stderr] --> src/ethernet/ethernet.rs:16:19 [INFO] [stderr] | [INFO] [stderr] 16 | use std::{thread, time}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `eth` [INFO] [stderr] --> src/ipv4/ipv4.rs:118:9 [INFO] [stderr] | [INFO] [stderr] 118 | eth: ðernet::Ethernet, [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_eth` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `layer_3_writer` [INFO] [stderr] --> src/ipv4/udp/udp.rs:45:59 [INFO] [stderr] | [INFO] [stderr] 45 | pub fn process_packet(frame: ethernet::EthernetFrame, layer_3_writer: &IPstackWriter) { [INFO] [stderr] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_layer_3_writer` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/ipv4/udp/udp.rs:49:18 [INFO] [stderr] | [INFO] [stderr] 49 | Some(mut datagram) => { [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `htons` [INFO] [stderr] --> src/net_util.rs:10:8 [INFO] [stderr] | [INFO] [stderr] 10 | pub fn htons(input: &[u8]) -> u16 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `operation` [INFO] [stderr] --> src/arp/arp.rs:79:8 [INFO] [stderr] | [INFO] [stderr] 79 | fn operation(&self) -> ARPKind { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `handle_packet` [INFO] [stderr] --> src/arp/arp.rs:110:8 [INFO] [stderr] | [INFO] [stderr] 110 | fn handle_packet(data: Vec, eth_addr: [u8; 6]) -> ARP { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `build_request` [INFO] [stderr] --> src/arp/arp.rs:115:8 [INFO] [stderr] | [INFO] [stderr] 115 | fn build_request(data: Vec) -> ARP { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `hrd` [INFO] [stderr] --> src/arp/arp.rs:175:12 [INFO] [stderr] | [INFO] [stderr] 175 | pub fn hrd(&self) -> [u8; 2] { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pro` [INFO] [stderr] --> src/arp/arp.rs:181:12 [INFO] [stderr] | [INFO] [stderr] 181 | pub fn pro(&self) -> [u8; 2] { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `op` [INFO] [stderr] --> src/arp/arp.rs:199:12 [INFO] [stderr] | [INFO] [stderr] 199 | pub fn op(&self) -> [u8; 2] { [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `tha` [INFO] [stderr] --> src/arp/arp.rs:213:12 [INFO] [stderr] | [INFO] [stderr] 213 | pub fn tha(&self) -> &[u8] { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `value` [INFO] [stderr] --> src/ethernet/ethernet.rs:55:12 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn value(&self) -> u16 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Reading` [INFO] [stderr] --> src/ethernet/ethernet.rs:69:5 [INFO] [stderr] | [INFO] [stderr] 69 | Reading, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `State` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/ethernet/ethernet.rs:66:10 [INFO] [stderr] | [INFO] [stderr] 66 | #[derive(Clone, Copy)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `build_response_frame` [INFO] [stderr] --> src/ethernet/ethernet.rs:95:12 [INFO] [stderr] | [INFO] [stderr] 95 | pub fn build_response_frame(&self, payload: T) -> Self [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `src` [INFO] [stderr] --> src/ethernet/ethernet.rs:112:12 [INFO] [stderr] | [INFO] [stderr] 112 | pub fn src(&self) -> HwAddr { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_socket_state` [INFO] [stderr] --> src/ethernet/ethernet.rs:133:8 [INFO] [stderr] | [INFO] [stderr] 133 | fn set_socket_state(&mut self, to_state: State) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `version` [INFO] [stderr] --> src/ipv4/ipv4.rs:41:5 [INFO] [stderr] | [INFO] [stderr] 41 | version: u8, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/ipv4/ipv4.rs:39:10 [INFO] [stderr] | [INFO] [stderr] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `ihl` [INFO] [stderr] --> src/ipv4/ipv4.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | ihl: u8, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/ipv4/ipv4.rs:39:10 [INFO] [stderr] | [INFO] [stderr] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `t_len` [INFO] [stderr] --> src/ipv4/ipv4.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | t_len: u16, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/ipv4/ipv4.rs:39:10 [INFO] [stderr] | [INFO] [stderr] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `id` [INFO] [stderr] --> src/ipv4/ipv4.rs:45:5 [INFO] [stderr] | [INFO] [stderr] 45 | id: u16, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/ipv4/ipv4.rs:39:10 [INFO] [stderr] | [INFO] [stderr] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `flags` [INFO] [stderr] --> src/ipv4/ipv4.rs:46:5 [INFO] [stderr] | [INFO] [stderr] 46 | flags: u8, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/ipv4/ipv4.rs:39:10 [INFO] [stderr] | [INFO] [stderr] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `frag_offset` [INFO] [stderr] --> src/ipv4/ipv4.rs:47:5 [INFO] [stderr] | [INFO] [stderr] 47 | frag_offset: u16, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/ipv4/ipv4.rs:39:10 [INFO] [stderr] | [INFO] [stderr] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `ttl` [INFO] [stderr] --> src/ipv4/ipv4.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | ttl: u8, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/ipv4/ipv4.rs:39:10 [INFO] [stderr] | [INFO] [stderr] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `chksm` [INFO] [stderr] --> src/ipv4/ipv4.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | chksm: u16, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `IpHeader` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/ipv4/ipv4.rs:39:10 [INFO] [stderr] | [INFO] [stderr] 39 | #[derive(Debug, Clone, Copy)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `src_str` [INFO] [stderr] --> src/ipv4/ipv4.rs:189:12 [INFO] [stderr] | [INFO] [stderr] 189 | pub fn src_str(&self) -> String { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `src_from_bytes` [INFO] [stderr] --> src/ipv4/ipv4.rs:254:12 [INFO] [stderr] | [INFO] [stderr] 254 | pub fn src_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `dst_from_bytes` [INFO] [stderr] --> src/ipv4/ipv4.rs:258:12 [INFO] [stderr] | [INFO] [stderr] 258 | pub fn dst_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `payload_from_bytes` [INFO] [stderr] --> src/ipv4/ipv4.rs:262:12 [INFO] [stderr] | [INFO] [stderr] 262 | pub fn payload_from_bytes(ip_bytes: &[u8]) -> &[u8] { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `ECHO_REQ` [INFO] [stderr] --> src/ipv4/icmp/icmp.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | const ECHO_REQ: u8 = 8u8; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `dst_port` [INFO] [stderr] --> src/ipv4/udp/udp.rs:27:12 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn dst_port(&self) -> u16 { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `length` [INFO] [stderr] --> src/ipv4/udp/udp.rs:31:12 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn length(&self) -> u16 { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `chksm` [INFO] [stderr] --> src/ipv4/udp/udp.rs:35:12 [INFO] [stderr] | [INFO] [stderr] 35 | pub fn chksm(&self) -> u16 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_chksm` [INFO] [stderr] --> src/ipv4/udp/udp.rs:39:12 [INFO] [stderr] | [INFO] [stderr] 39 | pub fn set_chksm(&mut self, value: u16) { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `addr_identifier` [INFO] [stderr] --> src/ipv4/udp/udp_socket.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | addr_identifier: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: panic message is not a string literal [INFO] [stderr] --> src/ethernet/ethernet.rs:288:28 [INFO] [stderr] | [INFO] [stderr] 288 | panic!(err.desc()); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stderr] = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021 [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: add a "{}" format string to Display the message [INFO] [stderr] | [INFO] [stderr] 288 | panic!("{}", err.desc()); [INFO] [stderr] | +++++ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `operation` [INFO] [stderr] --> src/arp/arp.rs:79:8 [INFO] [stderr] | [INFO] [stderr] 79 | fn operation(&self) -> ARPKind { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `user_net` (lib) generated 36 warnings [INFO] [stderr] warning: `user_net` (lib test) generated 35 warnings (34 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/user_net-14468c08a3f63d15) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test net_util::test::test_get_bits ... ok [INFO] [stdout] test net_util::test::test_compute_ip_checksum ... ok [INFO] [stdout] test net_util::test::test_ntohs ... ok [INFO] [stdout] test ethernet::ethernet::test::test_ether_type ... ok [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/user_net-6739085690808820) [INFO] [stdout] test net_util::test::test_htons ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests user_net [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] [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" "ea66957336c6fe1d16b8e4e7e5786b50c778c4a8b905618a02023abc3ebc76c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea66957336c6fe1d16b8e4e7e5786b50c778c4a8b905618a02023abc3ebc76c7", kill_on_drop: false }` [INFO] [stdout] ea66957336c6fe1d16b8e4e7e5786b50c778c4a8b905618a02023abc3ebc76c7