[INFO] cloning repository https://github.com/Stratus51/rust_ping_scanner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Stratus51/rust_ping_scanner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Frust_ping_scanner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Frust_ping_scanner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d05a46df54ee036b50c869f08b4056a7716d77b
[INFO] checking Stratus51/rust_ping_scanner against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Frust_ping_scanner" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Stratus51/rust_ping_scanner on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Stratus51/rust_ping_scanner
[INFO] finished tweaking git repo https://github.com/Stratus51/rust_ping_scanner
[INFO] tweaked toml for git repo https://github.com/Stratus51/rust_ping_scanner written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Stratus51/rust_ping_scanner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sys-info v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1819c854c4fabb6e53d9ec1823350126137ca70a7d784722785b986441ff5948
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1819c854c4fabb6e53d9ec1823350126137ca70a7d784722785b986441ff5948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1819c854c4fabb6e53d9ec1823350126137ca70a7d784722785b986441ff5948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1819c854c4fabb6e53d9ec1823350126137ca70a7d784722785b986441ff5948", kill_on_drop: false }`
[INFO] [stdout] 1819c854c4fabb6e53d9ec1823350126137ca70a7d784722785b986441ff5948
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--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] 2d482544f1e2fc0f4813154576b9603f8911fab067d7a09a351c9e4fe046a195
[INFO] running `Command { std: "docker" "start" "-a" "2d482544f1e2fc0f4813154576b9603f8911fab067d7a09a351c9e4fe046a195", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking pnet_base v0.27.2
[INFO] [stderr]    Compiling pnet v0.27.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking pnet_macros_support v0.27.2
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling sys-info v0.8.0
[INFO] [stderr]     Checking pnet_sys v0.27.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.27.2
[INFO] [stderr]     Checking ipnetwork v0.17.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking pnet_datalink v0.27.2
[INFO] [stderr]    Compiling pnet_packet v0.27.2
[INFO] [stderr]     Checking pnet_transport v0.27.2
[INFO] [stderr]     Checking tokio_ip_ping_request v0.1.0 (/opt/rustwide/workdir/tokio_ip_ping_request)
[INFO] [stdout] warning: unused import: `tcp`
[INFO] [stdout]  --> tokio_ip_ping_request/src/traceroute.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::ping::{icmp, tcp};
[INFO] [stdout]   |                         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tcp`
[INFO] [stdout]  --> tokio_ip_ping_request/src/traceroute.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::ping::{icmp, tcp};
[INFO] [stdout]   |                         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking measure_route v0.1.0 (/opt/rustwide/workdir/measure_route)
[INFO] [stderr]     Checking ping v0.1.0 (/opt/rustwide/workdir/ping)
[INFO] [stderr]     Checking ping_scan v0.1.0 (/opt/rustwide/workdir/ping_scan)
[INFO] [stderr]     Checking traceroute v0.1.0 (/opt/rustwide/workdir/traceroute)
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> ping_scan/src/configuration/v1.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> ping_scan/src/configuration/v1.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `field_from_args`
[INFO] [stdout]  --> ping_scan/src/configuration/v0.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn field_from_args<T: std::str::FromStr>(args: &[String], field_name: &str) -> Result<T, String>
[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: `from_args`
[INFO] [stdout]   --> ping_scan/src/configuration/v0.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn generate(&self) -> Result<Pinger, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn from_str(s: &str) -> Result<Self, ()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn generate(&self) -> Box<dyn Iterator<Item = u32>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ConfigurationObject`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:256:12
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub struct ConfigurationObject {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:262:12
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn generate(&self) -> Result<ConfigurationObject, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `field_from_args`
[INFO] [stdout]   --> ping_scan/src/configuration/mod.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn field_from_args<T: std::str::FromStr>(args: &[String], field_name: &str) -> Result<T, String>
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]   --> ping_scan/src/configuration/mod.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> ping_scan/src/configuration/mod.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn from_str(s: &str) -> Result<Self, ()> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_u8`
[INFO] [stdout]   --> ping_scan/src/configuration/mod.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn from_u8(n: u8) -> Result<Self, ()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/mod.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/mod.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/mod.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/mod.rs:216:12
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_DEPTH`
[INFO] [stdout]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const MAX_DEPTH: u32 = 31;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(depth: u32, index: u32, max_depth: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `field_from_args`
[INFO] [stdout]  --> ping_scan/src/configuration/v0.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn field_from_args<T: std::str::FromStr>(args: &[String], field_name: &str) -> Result<T, String>
[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: `from_args`
[INFO] [stdout]   --> ping_scan/src/configuration/v0.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn generate(&self) -> Result<Pinger, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn from_str(s: &str) -> Result<Self, ()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn generate(&self) -> Box<dyn Iterator<Item = u32>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ConfigurationObject`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:256:12
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub struct ConfigurationObject {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:262:12
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn generate(&self) -> Result<ConfigurationObject, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> ping_scan/src/cursor/mod.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn new(cursor: C) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_DEPTH`
[INFO] [stdout]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const MAX_DEPTH: u32 = 31;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(depth: u32, index: u32, max_depth: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `field_from_args`
[INFO] [stdout]  --> ping_scan/src/configuration/v0.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn field_from_args<T: std::str::FromStr>(args: &[String], field_name: &str) -> Result<T, String>
[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: `from_args`
[INFO] [stdout]   --> ping_scan/src/configuration/v0.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn generate(&self) -> Result<Pinger, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn from_str(s: &str) -> Result<Self, ()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn generate(&self) -> Box<dyn Iterator<Item = u32>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ConfigurationObject`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:256:12
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub struct ConfigurationObject {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:262:12
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn generate(&self) -> Result<ConfigurationObject, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> ping_scan/src/cursor/mod.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn new(cursor: C) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_DEPTH`
[INFO] [stdout]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const MAX_DEPTH: u32 = 31;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(depth: u32, index: u32, max_depth: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `field_from_args`
[INFO] [stdout]  --> ping_scan/src/configuration/v0.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn field_from_args<T: std::str::FromStr>(args: &[String], field_name: &str) -> Result<T, String>
[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: `from_args`
[INFO] [stdout]   --> ping_scan/src/configuration/v0.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn generate(&self) -> Result<Pinger, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn from_str(s: &str) -> Result<Self, ()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn generate(&self) -> Box<dyn Iterator<Item = u32>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ConfigurationObject`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:256:12
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub struct ConfigurationObject {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:262:12
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]    --> ping_scan/src/configuration/v0.rs:273:12
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn generate(&self) -> Result<ConfigurationObject, String> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `field_from_args`
[INFO] [stdout]   --> ping_scan/src/configuration/mod.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn field_from_args<T: std::str::FromStr>(args: &[String], field_name: &str) -> Result<T, String>
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]   --> ping_scan/src/configuration/mod.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> ping_scan/src/configuration/mod.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn from_str(s: &str) -> Result<Self, ()> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_u8`
[INFO] [stdout]   --> ping_scan/src/configuration/mod.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn from_u8(n: u8) -> Result<Self, ()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/mod.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/mod.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/mod.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args`
[INFO] [stdout]    --> ping_scan/src/configuration/mod.rs:216:12
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_DEPTH`
[INFO] [stdout]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const MAX_DEPTH: u32 = 31;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(depth: u32, index: u32, max_depth: u32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 58s
[INFO] running `Command { std: "docker" "inspect" "2d482544f1e2fc0f4813154576b9603f8911fab067d7a09a351c9e4fe046a195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d482544f1e2fc0f4813154576b9603f8911fab067d7a09a351c9e4fe046a195", kill_on_drop: false }`
[INFO] [stdout] 2d482544f1e2fc0f4813154576b9603f8911fab067d7a09a351c9e4fe046a195