[INFO] cloning repository https://github.com/neomata/netscan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neomata/netscan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneomata%2Fnetscan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneomata%2Fnetscan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 154c254cebcd29328451efd48df53b77cce3fd2c
[INFO] testing neomata/netscan against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneomata%2Fnetscan" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/neomata/netscan
[INFO] finished tweaking git repo https://github.com/neomata/netscan
[INFO] tweaked toml for git repo https://github.com/neomata/netscan written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/neomata/netscan on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/neomata/netscan already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-macro v0.3.27
[INFO] [stderr]   Downloaded futures-task v0.3.27
[INFO] [stderr]   Downloaded memalloc v0.1.0
[INFO] [stderr]   Downloaded futures v0.3.27
[INFO] [stderr]   Downloaded system-configuration v0.5.0
[INFO] [stderr]   Downloaded futures-channel v0.3.27
[INFO] [stderr]   Downloaded proc-macro2 v1.0.52
[INFO] [stderr]   Downloaded default-net v0.13.1
[INFO] [stderr]   Downloaded futures-util v0.3.27
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] [stderr]   Downloaded futures-executor v0.3.27
[INFO] [stderr]   Downloaded futures-core v0.3.27
[INFO] [stderr]   Downloaded futures-io v0.3.27
[INFO] [stderr]   Downloaded futures-sink v0.3.27
[INFO] [stderr]   Downloaded windows v0.32.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc984c1df640b1afb0d92acdcb25a077ac61f87e98a619bcac2580b50ad90583
[INFO] running `Command { std: "docker" "start" "-a" "cc984c1df640b1afb0d92acdcb25a077ac61f87e98a619bcac2580b50ad90583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc984c1df640b1afb0d92acdcb25a077ac61f87e98a619bcac2580b50ad90583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc984c1df640b1afb0d92acdcb25a077ac61f87e98a619bcac2580b50ad90583", kill_on_drop: false }`
[INFO] [stdout] cc984c1df640b1afb0d92acdcb25a077ac61f87e98a619bcac2580b50ad90583
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93b20cab10e59e44b557037f761699bffb3e81cbb822835aee9f9e6dde2c9636
[INFO] running `Command { std: "docker" "start" "-a" "93b20cab10e59e44b557037f761699bffb3e81cbb822835aee9f9e6dde2c9636", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]    Compiling futures-sink v0.3.27
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling serde v1.0.155
[INFO] [stderr]    Compiling futures-io v0.3.27
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling netscan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling default-net v0.13.1
[INFO] [stderr]    Compiling ipnetwork v0.20.0
[INFO] [stderr]    Compiling futures-macro v0.3.27
[INFO] [stderr]    Compiling futures-executor v0.3.27
[INFO] [stderr]    Compiling futures v0.3.27
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/network_interface.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IpAddr`
[INFO] [stdout]  --> src/scan_options.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::{IpAddr, Ipv4Addr, Ipv6Addr}, fmt::Debug};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut pairs_last: VecDeque<Vec<String>> = params.clone().chunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut pairs_first: VecDeque<Vec<String>> = params.clone().rchunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/scan_options.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 [key, val] => {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `ip` are never read
[INFO] [stdout]  --> src/host.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Host {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     ip: IpAddr
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NetworkInterface` is never constructed
[INFO] [stdout]  --> src/network_interface.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct NetworkInterface {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IpAddr`
[INFO] [stdout]  --> src/scan_options.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::{IpAddr, Ipv4Addr, Ipv6Addr}, fmt::Debug};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/main.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnboundedReceiver`
[INFO] [stdout]   --> src/main.rs:17:41
[INFO] [stdout]    |
[INFO] [stdout] 17 | use futures::channel::mpsc::{unbounded, UnboundedReceiver, UnboundedSender};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut pairs_last: VecDeque<Vec<String>> = params.clone().chunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut pairs_first: VecDeque<Vec<String>> = params.clone().rchunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/scan_options.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 [key, val] => {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ScanOptions` is never constructed
[INFO] [stdout]  --> src/scan_options.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct ScanOptions {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `organize_parameters`, and `from_arguments` are never used
[INFO] [stdout]   --> src/scan_options.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ScanOptions {
[INFO] [stdout]    | ---------------- associated functions in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn organize_parameters(params: Vec<String>) -> (Either<Ipv4Addr, Ipv6Addr>, Vec<Vec<String>>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn from_arguments(arguments: Vec<String>) -> ScanOptions {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.51s
[INFO] running `Command { std: "docker" "inspect" "93b20cab10e59e44b557037f761699bffb3e81cbb822835aee9f9e6dde2c9636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93b20cab10e59e44b557037f761699bffb3e81cbb822835aee9f9e6dde2c9636", kill_on_drop: false }`
[INFO] [stdout] 93b20cab10e59e44b557037f761699bffb3e81cbb822835aee9f9e6dde2c9636
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6bcab159c067ca21cca4f6eb925b3ca759cdd9814f66277f3d5bd534212d02d
[INFO] running `Command { std: "docker" "start" "-a" "f6bcab159c067ca21cca4f6eb925b3ca759cdd9814f66277f3d5bd534212d02d", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/network_interface.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IpAddr`
[INFO] [stdout]  --> src/scan_options.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::{IpAddr, Ipv4Addr, Ipv6Addr}, fmt::Debug};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut pairs_last: VecDeque<Vec<String>> = params.clone().chunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut pairs_first: VecDeque<Vec<String>> = params.clone().rchunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/scan_options.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 [key, val] => {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `ip` are never read
[INFO] [stdout]  --> src/host.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Host {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     ip: IpAddr
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NetworkInterface` is never constructed
[INFO] [stdout]  --> src/network_interface.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct NetworkInterface {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling netscan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/network_interface.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IpAddr`
[INFO] [stdout]  --> src/scan_options.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::{IpAddr, Ipv4Addr, Ipv6Addr}, fmt::Debug};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut pairs_last: VecDeque<Vec<String>> = params.clone().chunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut pairs_first: VecDeque<Vec<String>> = params.clone().rchunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/scan_options.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 [key, val] => {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `ip` are never read
[INFO] [stdout]  --> src/host.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Host {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     ip: IpAddr
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NetworkInterface` is never constructed
[INFO] [stdout]  --> src/network_interface.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct NetworkInterface {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IpAddr`
[INFO] [stdout]  --> src/scan_options.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{net::{IpAddr, Ipv4Addr, Ipv6Addr}, fmt::Debug};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/main.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnboundedReceiver`
[INFO] [stdout]   --> src/main.rs:17:41
[INFO] [stdout]    |
[INFO] [stdout] 17 | use futures::channel::mpsc::{unbounded, UnboundedReceiver, UnboundedSender};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let mut pairs_last: VecDeque<Vec<String>> = params.clone().chunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/scan_options.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let mut pairs_first: VecDeque<Vec<String>> = params.clone().rchunks(2).map(|s| s.to_vec()).collect();
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/scan_options.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 [key, val] => {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ScanOptions` is never constructed
[INFO] [stdout]  --> src/scan_options.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct ScanOptions {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `organize_parameters`, and `from_arguments` are never used
[INFO] [stdout]   --> src/scan_options.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ScanOptions {
[INFO] [stdout]    | ---------------- associated functions in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn organize_parameters(params: Vec<String>) -> (Either<Ipv4Addr, Ipv6Addr>, Vec<Vec<String>>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn from_arguments(arguments: Vec<String>) -> ScanOptions {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "f6bcab159c067ca21cca4f6eb925b3ca759cdd9814f66277f3d5bd534212d02d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6bcab159c067ca21cca4f6eb925b3ca759cdd9814f66277f3d5bd534212d02d", kill_on_drop: false }`
[INFO] [stdout] f6bcab159c067ca21cca4f6eb925b3ca759cdd9814f66277f3d5bd534212d02d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6182b08531e4b6539d378f3fe764d71a20525b877ad22a3b9d4c3aef4cdd1332
[INFO] running `Command { std: "docker" "start" "-a" "6182b08531e4b6539d378f3fe764d71a20525b877ad22a3b9d4c3aef4cdd1332", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/network_interface.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IpAddr`
[INFO] [stderr]  --> src/scan_options.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{net::{IpAddr, Ipv4Addr, Ipv6Addr}, fmt::Debug};
[INFO] [stderr]   |                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/scan_options.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let mut pairs_last: VecDeque<Vec<String>> = params.clone().chunks(2).map(|s| s.to_vec()).collect();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/scan_options.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let mut pairs_first: VecDeque<Vec<String>> = params.clone().rchunks(2).map(|s| s.to_vec()).collect();
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]    --> src/scan_options.rs:106:23
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 [key, val] => {
[INFO] [stderr]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `ip` are never read
[INFO] [stderr]  --> src/host.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Host {
[INFO] [stderr]   |            ---- fields in this struct
[INFO] [stderr] 4 |     name: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 5 |     ip: IpAddr
[INFO] [stderr]   |     ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `NetworkInterface` is never constructed
[INFO] [stderr]  --> src/network_interface.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct NetworkInterface {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `netscan` (lib) generated 7 warnings (run `cargo fix --lib -p netscan` to apply 4 suggestions)
[INFO] [stderr] warning: `netscan` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr] warning: unused import: `IpAddr`
[INFO] [stderr]  --> src/scan_options.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{net::{IpAddr, Ipv4Addr, Ipv6Addr}, fmt::Debug};
[INFO] [stderr]   |                 ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/main.rs:9:33
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `UnboundedReceiver`
[INFO] [stderr]   --> src/main.rs:17:41
[INFO] [stderr]    |
[INFO] [stderr] 17 | use futures::channel::mpsc::{unbounded, UnboundedReceiver, UnboundedSender};
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ScanOptions` is never constructed
[INFO] [stderr]  --> src/scan_options.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct ScanOptions {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `new`, `organize_parameters`, and `from_arguments` are never used
[INFO] [stderr]   --> src/scan_options.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl ScanOptions {
[INFO] [stderr]    | ---------------- associated functions in this implementation
[INFO] [stderr] 15 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     fn organize_parameters(params: Vec<String>) -> (Either<Ipv4Addr, Ipv6Addr>, Vec<Vec<String>>) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 61 |     pub fn from_arguments(arguments: Vec<String>) -> ScanOptions {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `netscan` (bin "netscan" test) generated 8 warnings (3 duplicates) (run `cargo fix --bin "netscan" --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/netscan-0b48185aa7ec0391)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/netscan-cb98f4f71e0dc3ce)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests netscan
[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" "6182b08531e4b6539d378f3fe764d71a20525b877ad22a3b9d4c3aef4cdd1332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6182b08531e4b6539d378f3fe764d71a20525b877ad22a3b9d4c3aef4cdd1332", kill_on_drop: false }`
[INFO] [stdout] 6182b08531e4b6539d378f3fe764d71a20525b877ad22a3b9d4c3aef4cdd1332
