[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#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbevensteven%2Fdns-server" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bevensteven/dns-server on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/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-11/source/Cargo.toml
[INFO] crate git repo https://github.com/bevensteven/dns-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dabc4f571b21c81a8a3b29974db2060b9027ab305bbc2104756530ac3b3f19b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0dabc4f571b21c81a8a3b29974db2060b9027ab305bbc2104756530ac3b3f19b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dabc4f571b21c81a8a3b29974db2060b9027ab305bbc2104756530ac3b3f19b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dabc4f571b21c81a8a3b29974db2060b9027ab305bbc2104756530ac3b3f19b", kill_on_drop: false }`
[INFO] [stdout] 0dabc4f571b21c81a8a3b29974db2060b9027ab305bbc2104756530ac3b3f19b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 307feaa8ad6acc9d10d927c397f019d24c907da215aa2a83cc58da0f464430b0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "307feaa8ad6acc9d10d927c397f019d24c907da215aa2a83cc58da0f464430b0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking getrandom v0.1.14
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn write(&mut self, val: u8) -> Result<()> {
[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: `write_u8`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn write_u8(&mut self, val: u8) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_u16`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn write_u16(&mut self, val: u16) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_u32`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn write_u32(&mut self, val: u32) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn set(&mut self, pos: usize, val: u8) -> Result<()> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_u16`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn set_u16(&mut self, pos: usize, val: u16) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_qname`
[INFO] [stdout]    --> src/dns/byte_packet_buffer.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn write_qname(&mut self, qname: &str) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/dns/dns_header.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/dns/dns_packet.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random_a`
[INFO] [stdout]   --> src/dns/dns_packet.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn get_random_a(&self) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_resolved_ns`
[INFO] [stdout]   --> src/dns/dns_packet.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn get_resolved_ns(&self, qname: &str) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_unresolved_ns`
[INFO] [stdout]    --> src/dns/dns_packet.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn get_unresolved_ns(&self, qname: &str) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/dns/dns_question.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]    --> src/dns/dns_record.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<usize> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_num`
[INFO] [stdout]   --> src/dns/query_type.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn to_num(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn write(&mut self, val: u8) -> Result<()> {
[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: `write_u8`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn write_u8(&mut self, val: u8) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_u16`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn write_u16(&mut self, val: u16) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_u32`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:81:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn write_u32(&mut self, val: u32) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn set(&mut self, pos: usize, val: u8) -> Result<()> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_u16`
[INFO] [stdout]   --> src/dns/byte_packet_buffer.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn set_u16(&mut self, pos: usize, val: u16) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_qname`
[INFO] [stdout]    --> src/dns/byte_packet_buffer.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn write_qname(&mut self, qname: &str) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/dns/dns_header.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/dns/dns_packet.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random_a`
[INFO] [stdout]   --> src/dns/dns_packet.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn get_random_a(&self) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_resolved_ns`
[INFO] [stdout]   --> src/dns/dns_packet.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn get_resolved_ns(&self, qname: &str) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_unresolved_ns`
[INFO] [stdout]    --> src/dns/dns_packet.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn get_unresolved_ns(&self, qname: &str) -> Option<String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/dns/dns_question.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]    --> src/dns/dns_record.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<usize> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_num`
[INFO] [stdout]   --> src/dns/query_type.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn to_num(&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.51s
[INFO] running `Command { std: "docker" "inspect" "307feaa8ad6acc9d10d927c397f019d24c907da215aa2a83cc58da0f464430b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "307feaa8ad6acc9d10d927c397f019d24c907da215aa2a83cc58da0f464430b0", kill_on_drop: false }`
[INFO] [stdout] 307feaa8ad6acc9d10d927c397f019d24c907da215aa2a83cc58da0f464430b0