[INFO] cloning repository https://github.com/bevensteven/dns-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bevensteven/dns-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbevensteven%2Fdns-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbevensteven%2Fdns-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89bb9f47d2e2e14637afc3aa98b44a4c071c05c2
[INFO] checking bevensteven/dns-server against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbevensteven%2Fdns-server" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bevensteven/dns-server
[INFO] finished tweaking git repo https://github.com/bevensteven/dns-server
[INFO] tweaked toml for git repo https://github.com/bevensteven/dns-server written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bevensteven/dns-server on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bevensteven/dns-server 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d162adf08b858fcbb5c5f91128a9fdaf7b2a4a40a0ec56595d3c31a4e32ae45a
[INFO] running `Command { std: "docker" "start" "-a" "d162adf08b858fcbb5c5f91128a9fdaf7b2a4a40a0ec56595d3c31a4e32ae45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d162adf08b858fcbb5c5f91128a9fdaf7b2a4a40a0ec56595d3c31a4e32ae45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d162adf08b858fcbb5c5f91128a9fdaf7b2a4a40a0ec56595d3c31a4e32ae45a", kill_on_drop: false }`
[INFO] [stdout] d162adf08b858fcbb5c5f91128a9fdaf7b2a4a40a0ec56595d3c31a4e32ae45a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5d1b6cd58532ec479390b0e39dd2de2739045580919eff52f910c5bb5b3b476
[INFO] running `Command { std: "docker" "start" "-a" "e5d1b6cd58532ec479390b0e39dd2de2739045580919eff52f910c5bb5b3b476", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking dns-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `server`
[INFO] [stdout]   --> src/web/server.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let server = ("8.8.8.8", 53);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `server`
[INFO] [stdout]   --> src/web/server.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let server = ("8.8.8.8", 53);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/dns/byte_packet_buffer.rs:61:8
[INFO] [stdout]     |
[INFO] [stdout] 8   | impl BytePacketBuffer {
[INFO] [stdout]     | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61  |     fn write(&mut self, val: u8) -> Result<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70  |     pub fn write_u8(&mut self, val: u8) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     pub fn write_u16(&mut self, val: u16) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81  |     pub fn write_u32(&mut self, val: u32) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92  |     fn set(&mut self, pos: usize, val: u8) -> Result<()> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     pub fn set_u16(&mut self, pos: usize, val: u16) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     pub fn write_qname(&mut self, qname: &str) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]   --> src/dns/dns_header.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl DnsHeader {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `get_random_a`, `get_resolved_ns`, and `get_unresolved_ns` are never used
[INFO] [stdout]    --> src/dns/dns_packet.rs:60:12
[INFO] [stdout]     |
[INFO] [stdout] 21  | impl DnsPacket {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60  |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85  |     pub fn get_random_a(&self) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     pub fn get_resolved_ns(&self, qname: &str) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 138 |     pub fn get_unresolved_ns(&self, qname: &str) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]   --> src/dns/dns_question.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl DnsQuestion {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]    --> src/dns/dns_record.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 44  | impl DnsRecord {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<usize> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_num` is never used
[INFO] [stdout]   --> src/dns/query_type.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl QueryType {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 12 |     pub fn to_num(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/dns/byte_packet_buffer.rs:61:8
[INFO] [stdout]     |
[INFO] [stdout] 8   | impl BytePacketBuffer {
[INFO] [stdout]     | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61  |     fn write(&mut self, val: u8) -> Result<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70  |     pub fn write_u8(&mut self, val: u8) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     pub fn write_u16(&mut self, val: u16) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81  |     pub fn write_u32(&mut self, val: u32) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92  |     fn set(&mut self, pos: usize, val: u8) -> Result<()> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     pub fn set_u16(&mut self, pos: usize, val: u16) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     pub fn write_qname(&mut self, qname: &str) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]   --> src/dns/dns_header.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl DnsHeader {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write`, `get_random_a`, `get_resolved_ns`, and `get_unresolved_ns` are never used
[INFO] [stdout]    --> src/dns/dns_packet.rs:60:12
[INFO] [stdout]     |
[INFO] [stdout] 21  | impl DnsPacket {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60  |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85  |     pub fn get_random_a(&self) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     pub fn get_resolved_ns(&self, qname: &str) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 138 |     pub fn get_unresolved_ns(&self, qname: &str) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]   --> src/dns/dns_question.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl DnsQuestion {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]    --> src/dns/dns_record.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 44  | impl DnsRecord {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<usize> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_num` is never used
[INFO] [stdout]   --> src/dns/query_type.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl QueryType {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 12 |     pub fn to_num(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "e5d1b6cd58532ec479390b0e39dd2de2739045580919eff52f910c5bb5b3b476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5d1b6cd58532ec479390b0e39dd2de2739045580919eff52f910c5bb5b3b476", kill_on_drop: false }`
[INFO] [stdout] e5d1b6cd58532ec479390b0e39dd2de2739045580919eff52f910c5bb5b3b476
