[INFO] cloning repository https://github.com/pmalmgren/dnsclient-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pmalmgren/dnsclient-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fdnsclient-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fdnsclient-rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fdnsclient-rust/refs: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/pmalmgren/dnsclient-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pmalmgren/dnsclient-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fdnsclient-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fdnsclient-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9fb783919bfbdefd61539e09e90a04de66fc5a2
[INFO] checking pmalmgren/dnsclient-rust against try#0fe3684930279e4d3be3aca66b30f82946ce9ac2 for pr-138340
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fdnsclient-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pmalmgren/dnsclient-rust on toolchain 0fe3684930279e4d3be3aca66b30f82946ce9ac2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pmalmgren/dnsclient-rust
[INFO] finished tweaking git repo https://github.com/pmalmgren/dnsclient-rust
[INFO] tweaked toml for git repo https://github.com/pmalmgren/dnsclient-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pmalmgren/dnsclient-rust 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" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf70f217b0d87091d29880d7edaafb7a1496fecd25d0482960b83f37a82de6f5
[INFO] running `Command { std: "docker" "start" "-a" "cf70f217b0d87091d29880d7edaafb7a1496fecd25d0482960b83f37a82de6f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf70f217b0d87091d29880d7edaafb7a1496fecd25d0482960b83f37a82de6f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf70f217b0d87091d29880d7edaafb7a1496fecd25d0482960b83f37a82de6f5", kill_on_drop: false }`
[INFO] [stdout] cf70f217b0d87091d29880d7edaafb7a1496fecd25d0482960b83f37a82de6f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+0fe3684930279e4d3be3aca66b30f82946ce9ac2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0500a5622be74e59c65f1a351c8b364ec940369c593cfc0a5f8bec6af27f1f0d
[INFO] running `Command { std: "docker" "start" "-a" "0500a5622be74e59c65f1a351c8b364ec940369c593cfc0a5f8bec6af27f1f0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dig-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/dns.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/dns.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hostname`
[INFO] [stdout]    --> src/dns.rs:134:29
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn set_query(&mut self, hostname: String, query: DnsQueryType, record: DnsRecordType) {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hostname`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]    --> src/dns.rs:134:68
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn set_query(&mut self, hostname: String, query: DnsQueryType, record: DnsRecordType) {
[INFO] [stdout]     |                                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]  --> src/main.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn query(config: AppConfig) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]   |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hostname` and `dns_server` are never read
[INFO] [stdout]  --> src/config.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct AppConfig {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 7 |     hostname: String,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 8 |     dns_server: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AppConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DnsRecordType` is never used
[INFO] [stdout]  --> src/dns.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum DnsRecordType {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DnsRecordType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/dns.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl DnsRecordType {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 26 |     fn value(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DnsQueryType` is never used
[INFO] [stdout]   --> src/dns.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum DnsQueryType {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DnsQueryType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/dns.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl DnsQueryType {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 44 |     fn value(&self) -> u16 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DnsQueryClass` is never used
[INFO] [stdout]   --> src/dns.rs:51:10
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum DnsQueryClass {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DnsQueryClass` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QueryZone` is never constructed
[INFO] [stdout]   --> src/dns.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct QueryZone {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QueryZone` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ResourceRecord` is never constructed
[INFO] [stdout]   --> src/dns.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct ResourceRecord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ResourceRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DnsMessageSection` is never constructed
[INFO] [stdout]   --> src/dns.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct DnsMessageSection {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DnsMessageSection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/dns.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | impl DnsMessageSection {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 87 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DnsMessage` is never constructed
[INFO] [stdout]    --> src/dns.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct DnsMessage {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DnsMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `set_query` are never used
[INFO] [stdout]    --> src/dns.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 121 | impl DnsMessage {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 122 |     pub fn new(trans_id: u16) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     fn set_query(&mut self, hostname: String, query: DnsQueryType, record: DnsRecordType) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DnsSocket` is never constructed
[INFO] [stdout]    --> src/dns.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct DnsSocket {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DnsSocket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `query` are never used
[INFO] [stdout]    --> src/dns.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl DnsSocket {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 150 |     pub fn new<T: ToSocketAddrs>(server: T) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     pub fn query(
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hostname`
[INFO] [stdout]    --> src/dns.rs:134:29
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn set_query(&mut self, hostname: String, query: DnsQueryType, record: DnsRecordType) {
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hostname`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]    --> src/dns.rs:134:68
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn set_query(&mut self, hostname: String, query: DnsQueryType, record: DnsRecordType) {
[INFO] [stdout]     |                                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]  --> src/main.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn query(config: AppConfig) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]   |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DnsRecordType` is never used
[INFO] [stdout]  --> src/dns.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum DnsRecordType {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DnsRecordType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/dns.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl DnsRecordType {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 26 |     fn value(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DnsQueryType` is never used
[INFO] [stdout]   --> src/dns.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum DnsQueryType {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DnsQueryType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/dns.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl DnsQueryType {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 44 |     fn value(&self) -> u16 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DnsQueryClass` is never used
[INFO] [stdout]   --> src/dns.rs:51:10
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum DnsQueryClass {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DnsQueryClass` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QueryZone` is never constructed
[INFO] [stdout]   --> src/dns.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct QueryZone {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QueryZone` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ResourceRecord` is never constructed
[INFO] [stdout]   --> src/dns.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct ResourceRecord {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ResourceRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DnsMessageSection` is never constructed
[INFO] [stdout]   --> src/dns.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct DnsMessageSection {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DnsMessageSection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/dns.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | impl DnsMessageSection {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 87 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DnsMessage` is never constructed
[INFO] [stdout]    --> src/dns.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct DnsMessage {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DnsMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `set_query` are never used
[INFO] [stdout]    --> src/dns.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 121 | impl DnsMessage {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 122 |     pub fn new(trans_id: u16) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     fn set_query(&mut self, hostname: String, query: DnsQueryType, record: DnsRecordType) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DnsSocket` is never constructed
[INFO] [stdout]    --> src/dns.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct DnsSocket {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DnsSocket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `query` are never used
[INFO] [stdout]    --> src/dns.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl DnsSocket {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 150 |     pub fn new<T: ToSocketAddrs>(server: T) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     pub fn query(
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "0500a5622be74e59c65f1a351c8b364ec940369c593cfc0a5f8bec6af27f1f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0500a5622be74e59c65f1a351c8b364ec940369c593cfc0a5f8bec6af27f1f0d", kill_on_drop: false }`
[INFO] [stdout] 0500a5622be74e59c65f1a351c8b364ec940369c593cfc0a5f8bec6af27f1f0d