[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] testing Stratus51/rust_ping_scanner against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStratus51%2Frust_ping_scanner" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Stratus51/rust_ping_scanner on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-8/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" "+1.60.0" "fetch" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ccbd38d99f966d170fe2d1d3404b87edbe91d7a6242a537711ade5074045ff8
[INFO] running `Command { std: "docker" "start" "-a" "0ccbd38d99f966d170fe2d1d3404b87edbe91d7a6242a537711ade5074045ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ccbd38d99f966d170fe2d1d3404b87edbe91d7a6242a537711ade5074045ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ccbd38d99f966d170fe2d1d3404b87edbe91d7a6242a537711ade5074045ff8", kill_on_drop: false }`
[INFO] [stdout] 0ccbd38d99f966d170fe2d1d3404b87edbe91d7a6242a537711ade5074045ff8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96e22596ab2fd0b9078dadfe4392ed1f179d0159314e5f9dc467bb0fb8c25c8f
[INFO] running `Command { std: "docker" "start" "-a" "96e22596ab2fd0b9078dadfe4392ed1f179d0159314e5f9dc467bb0fb8c25c8f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling term v0.4.6
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[INFO] [stderr]    Compiling serde_derive v1.0.123
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[INFO] [stderr]    Compiling pnet_base v0.27.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.5
[INFO] [stderr]    Compiling pnet v0.27.2
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[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling futures-sink v0.3.13
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling futures-io v0.3.13
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pnet_macros_support v0.27.2
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling sys-info v0.8.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling pnet_sys v0.27.2
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.27.2
[INFO] [stderr]    Compiling futures-executor v0.3.13
[INFO] [stderr]    Compiling futures v0.3.13
[INFO] [stderr]    Compiling pnet_packet v0.27.2
[INFO] [stderr]    Compiling ipnetwork v0.17.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling pnet_datalink v0.27.2
[INFO] [stderr]    Compiling pnet_transport v0.27.2
[INFO] [stderr]    Compiling 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: field is never read: `addr`
[INFO] [stdout]  --> tokio_ip_ping_request/src/measure_route.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     addr: Ipv4Addr,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `RouteNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> tokio_ip_ping_request/src/measure_route.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug)]
[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: `latency`
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     latency: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `RouteNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:7:10
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(Debug)]
[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: `stat`
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     stat: u8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TtlStat` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug)]
[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: `sn`
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/icmp.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     sn: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `PingIdentifier` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/icmp.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[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: `sn`
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/tcp.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     sn: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `PingIdentifier` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/tcp.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ping_scan v0.1.0 (/opt/rustwide/workdir/ping_scan)
[INFO] [stderr]    Compiling ping v0.1.0 (/opt/rustwide/workdir/ping)
[INFO] [stderr]    Compiling traceroute v0.1.0 (/opt/rustwide/workdir/traceroute)
[INFO] [stderr]    Compiling measure_route v0.1.0 (/opt/rustwide/workdir/measure_route)
[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/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]    = 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/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: 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] 
[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: 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: 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]     = note: `#[warn(dead_code)]` 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] 
[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: 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: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.59s
[INFO] running `Command { std: "docker" "inspect" "96e22596ab2fd0b9078dadfe4392ed1f179d0159314e5f9dc467bb0fb8c25c8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96e22596ab2fd0b9078dadfe4392ed1f179d0159314e5f9dc467bb0fb8c25c8f", kill_on_drop: false }`
[INFO] [stdout] 96e22596ab2fd0b9078dadfe4392ed1f179d0159314e5f9dc467bb0fb8c25c8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 010c598f118ee23f4ed3c952b6a57388de14befeeefb2734f4863c1f41c0a9a2
[INFO] running `Command { std: "docker" "start" "-a" "010c598f118ee23f4ed3c952b6a57388de14befeeefb2734f4863c1f41c0a9a2", kill_on_drop: false }`
[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: field is never read: `addr`
[INFO] [stdout]  --> tokio_ip_ping_request/src/measure_route.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     addr: Ipv4Addr,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `RouteNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> tokio_ip_ping_request/src/measure_route.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug)]
[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: `latency`
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     latency: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `RouteNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:7:10
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(Debug)]
[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: `stat`
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     stat: u8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TtlStat` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug)]
[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: `sn`
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/icmp.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     sn: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `PingIdentifier` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/icmp.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[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] [stderr]    Compiling tokio_ip_ping_request v0.1.0 (/opt/rustwide/workdir/tokio_ip_ping_request)
[INFO] [stdout] warning: field is never read: `sn`
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/tcp.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     sn: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `PingIdentifier` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/tcp.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[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] [stderr]    Compiling ping_scan v0.1.0 (/opt/rustwide/workdir/ping_scan)
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ping v0.1.0 (/opt/rustwide/workdir/ping)
[INFO] [stderr]    Compiling traceroute v0.1.0 (/opt/rustwide/workdir/traceroute)
[INFO] [stderr]    Compiling measure_route v0.1.0 (/opt/rustwide/workdir/measure_route)
[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: field is never read: `addr`
[INFO] [stdout]  --> tokio_ip_ping_request/src/measure_route.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     addr: Ipv4Addr,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `RouteNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> tokio_ip_ping_request/src/measure_route.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug)]
[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: `latency`
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     latency: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `RouteNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:7:10
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(Debug)]
[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: `stat`
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     stat: u8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `TtlStat` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/measure_route.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug)]
[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: `sn`
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/icmp.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     sn: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `PingIdentifier` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/icmp.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[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: `sn`
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/tcp.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     sn: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `PingIdentifier` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> tokio_ip_ping_request/src/ping/tcp.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[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: 6 warnings emitted
[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]     = note: `#[warn(dead_code)]` 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] 
[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: 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/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]    = 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/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: 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] 
[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: 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: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "010c598f118ee23f4ed3c952b6a57388de14befeeefb2734f4863c1f41c0a9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "010c598f118ee23f4ed3c952b6a57388de14befeeefb2734f4863c1f41c0a9a2", kill_on_drop: false }`
[INFO] [stdout] 010c598f118ee23f4ed3c952b6a57388de14befeeefb2734f4863c1f41c0a9a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28db312ce9fcfe7f464e7fc264b776dcbec771f6297a7d6636fd1578d2f55ba4
[INFO] running `Command { std: "docker" "start" "-a" "28db312ce9fcfe7f464e7fc264b776dcbec771f6297a7d6636fd1578d2f55ba4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `tcp`
[INFO] [stderr]  --> tokio_ip_ping_request/src/traceroute.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::ping::{icmp, tcp};
[INFO] [stderr]   |                         ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `addr`
[INFO] [stderr]  --> tokio_ip_ping_request/src/measure_route.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     addr: Ipv4Addr,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `RouteNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> tokio_ip_ping_request/src/measure_route.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[derive(Debug)]
[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: `latency`
[INFO] [stderr]   --> tokio_ip_ping_request/src/measure_route.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     latency: Duration,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `RouteNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> tokio_ip_ping_request/src/measure_route.rs:7:10
[INFO] [stderr]    |
[INFO] [stderr] 7  | #[derive(Debug)]
[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: `stat`
[INFO] [stderr]   --> tokio_ip_ping_request/src/measure_route.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     stat: u8,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `TtlStat` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> tokio_ip_ping_request/src/measure_route.rs:13:10
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[derive(Debug)]
[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: `sn`
[INFO] [stderr]   --> tokio_ip_ping_request/src/ping/icmp.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     sn: u16,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `PingIdentifier` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> tokio_ip_ping_request/src/ping/icmp.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[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: `sn`
[INFO] [stderr]   --> tokio_ip_ping_request/src/ping/tcp.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     sn: u16,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `PingIdentifier` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> tokio_ip_ping_request/src/ping/tcp.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[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: `tokio_ip_ping_request` (lib) generated 6 warnings
[INFO] [stderr] warning: `tokio_ip_ping_request` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> ping_scan/src/cursor/mod.rs:151:12
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn new(cursor: C) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `field_from_args`
[INFO] [stderr]  --> ping_scan/src/configuration/v0.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn field_from_args<T: std::str::FromStr>(args: &[String], field_name: &str) -> Result<T, String>
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_args`
[INFO] [stderr]   --> ping_scan/src/configuration/v0.rs:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `generate`
[INFO] [stderr]    --> ping_scan/src/configuration/v0.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn generate(&self) -> Result<Pinger, String> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_str`
[INFO] [stderr]    --> ping_scan/src/configuration/v0.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn from_str(s: &str) -> Result<Self, ()> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_args`
[INFO] [stderr]    --> ping_scan/src/configuration/v0.rs:167:12
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `generate`
[INFO] [stderr]    --> ping_scan/src/configuration/v0.rs:212:12
[INFO] [stderr]     |
[INFO] [stderr] 212 |     pub fn generate(&self) -> Box<dyn Iterator<Item = u32>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ConfigurationObject`
[INFO] [stderr]    --> ping_scan/src/configuration/v0.rs:256:12
[INFO] [stderr]     |
[INFO] [stderr] 256 | pub struct ConfigurationObject {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_args`
[INFO] [stderr]    --> ping_scan/src/configuration/v0.rs:262:12
[INFO] [stderr]     |
[INFO] [stderr] 262 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `generate`
[INFO] [stderr]    --> ping_scan/src/configuration/v0.rs:273:12
[INFO] [stderr]     |
[INFO] [stderr] 273 |     pub fn generate(&self) -> Result<ConfigurationObject, String> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MAX_DEPTH`
[INFO] [stderr]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub const MAX_DEPTH: u32 = 31;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> ping_scan/src/deprecated/u32_sampling_iterator.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn new(depth: u32, index: u32, max_depth: u32) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `field_from_args`
[INFO] [stderr]   --> ping_scan/src/configuration/mod.rs:16:4
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn field_from_args<T: std::str::FromStr>(args: &[String], field_name: &str) -> Result<T, String>
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_args`
[INFO] [stderr]   --> ping_scan/src/configuration/mod.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_str`
[INFO] [stderr]   --> ping_scan/src/configuration/mod.rs:81:12
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn from_str(s: &str) -> Result<Self, ()> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_u8`
[INFO] [stderr]   --> ping_scan/src/configuration/mod.rs:90:12
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn from_u8(n: u8) -> Result<Self, ()> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_args`
[INFO] [stderr]    --> ping_scan/src/configuration/mod.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_args`
[INFO] [stderr]    --> ping_scan/src/configuration/mod.rs:159:12
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_args`
[INFO] [stderr]    --> ping_scan/src/configuration/mod.rs:185:12
[INFO] [stderr]     |
[INFO] [stderr] 185 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_args`
[INFO] [stderr]    --> ping_scan/src/configuration/mod.rs:216:12
[INFO] [stderr]     |
[INFO] [stderr] 216 |     pub fn from_args(args: &[String]) -> Result<Self, String> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ping_scan` (bin "ping_scan" test) generated 12 warnings
[INFO] [stderr] warning: `ping_scan` (bin "read_ping_scan" test) generated 19 warnings (11 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/measure_route-589b54e6152a8610)
[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 (/opt/rustwide/target/debug/deps/ping-1a16efd66fb229a9)
[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 (/opt/rustwide/target/debug/deps/ping_scan-72baef2f351ec955)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test configuration::v0::test::decode_consistency ... ok
[INFO] [stdout] test configuration::v1::test::decode_consistency ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/read_ping_scan-97e6a925a17d1901)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test configuration::v0::test::decode_consistency ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tokio_ip_ping_request-88a3e4f7d757a457)
[INFO] [stdout] test configuration::v1::test::decode_consistency ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/traceroute-a44cf46a2e41ae8c)
[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]    Doc-tests tokio_ip_ping_request
[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" "28db312ce9fcfe7f464e7fc264b776dcbec771f6297a7d6636fd1578d2f55ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28db312ce9fcfe7f464e7fc264b776dcbec771f6297a7d6636fd1578d2f55ba4", kill_on_drop: false }`
[INFO] [stdout] 28db312ce9fcfe7f464e7fc264b776dcbec771f6297a7d6636fd1578d2f55ba4