[INFO] cloning repository https://github.com/bkatrenko/dns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bkatrenko/dns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkatrenko%2Fdns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkatrenko%2Fdns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 087899a13e4186c68d5383991d27eb40516996fb
[INFO] testing bkatrenko/dns against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkatrenko%2Fdns" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bkatrenko/dns
[INFO] finished tweaking git repo https://github.com/bkatrenko/dns
[INFO] tweaked toml for git repo https://github.com/bkatrenko/dns written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bkatrenko/dns on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bkatrenko/dns 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8600bdf7f8a84a6d270a281246b93c36dc7cdaf29dcb872a8e5174298c1a4003
[INFO] running `Command { std: "docker" "start" "-a" "8600bdf7f8a84a6d270a281246b93c36dc7cdaf29dcb872a8e5174298c1a4003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8600bdf7f8a84a6d270a281246b93c36dc7cdaf29dcb872a8e5174298c1a4003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8600bdf7f8a84a6d270a281246b93c36dc7cdaf29dcb872a8e5174298c1a4003", kill_on_drop: false }`
[INFO] [stdout] 8600bdf7f8a84a6d270a281246b93c36dc7cdaf29dcb872a8e5174298c1a4003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb6f65e94b67630da00ac12ee99f7e9764543e9488e518a69947388d93ce85b
[INFO] running `Command { std: "docker" "start" "-a" "adb6f65e94b67630da00ac12ee99f7e9764543e9488e518a69947388d93ce85b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling mio v0.8.9
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling nanoid v0.4.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tokio v1.34.0
[INFO] [stderr]    Compiling dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `path::Display`
[INFO] [stdout]  --> src/parser/mod.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{error::Error, path::Display};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |         DNSRecord::A { len, ip } => IpAddr::V4(ip),
[INFO] [stdout]     |                        ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:172:27
[INFO] [stdout]     |
[INFO] [stdout] 172 |         DNSRecord::AAAA { len, ip } => IpAddr::V6(ip),
[INFO] [stdout]     |                           ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:180:25
[INFO] [stdout]     |
[INFO] [stdout] 180 |         DNSRecord::NS { len, name_server } => name_server,
[INFO] [stdout]     |                         ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |         DNSRecord::CNAME { len, cname } => cname,
[INFO] [stdout]     |                            ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]  --> src/parser/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct DNSPacket {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 9 |     buf: buffer::ByteBuffer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DNSPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.95s
[INFO] running `Command { std: "docker" "inspect" "adb6f65e94b67630da00ac12ee99f7e9764543e9488e518a69947388d93ce85b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb6f65e94b67630da00ac12ee99f7e9764543e9488e518a69947388d93ce85b", kill_on_drop: false }`
[INFO] [stdout] adb6f65e94b67630da00ac12ee99f7e9764543e9488e518a69947388d93ce85b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85a7d985f48ac72dc15b61602b03fff3675110e43055c455080a927cc6af0b46
[INFO] running `Command { std: "docker" "start" "-a" "85a7d985f48ac72dc15b61602b03fff3675110e43055c455080a927cc6af0b46", kill_on_drop: false }`
[INFO] [stderr]    Compiling dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `path::Display`
[INFO] [stdout]  --> src/parser/mod.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{error::Error, path::Display};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |         DNSRecord::A { len, ip } => IpAddr::V4(ip),
[INFO] [stdout]     |                        ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:172:27
[INFO] [stdout]     |
[INFO] [stdout] 172 |         DNSRecord::AAAA { len, ip } => IpAddr::V6(ip),
[INFO] [stdout]     |                           ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:180:25
[INFO] [stdout]     |
[INFO] [stdout] 180 |         DNSRecord::NS { len, name_server } => name_server,
[INFO] [stdout]     |                         ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |         DNSRecord::CNAME { len, cname } => cname,
[INFO] [stdout]     |                            ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]  --> src/parser/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct DNSPacket {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 9 |     buf: buffer::ByteBuffer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DNSPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::Display`
[INFO] [stdout]  --> src/parser/mod.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{error::Error, path::Display};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |         DNSRecord::A { len, ip } => IpAddr::V4(ip),
[INFO] [stdout]     |                        ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:172:27
[INFO] [stdout]     |
[INFO] [stdout] 172 |         DNSRecord::AAAA { len, ip } => IpAddr::V6(ip),
[INFO] [stdout]     |                           ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:180:25
[INFO] [stdout]     |
[INFO] [stdout] 180 |         DNSRecord::NS { len, name_server } => name_server,
[INFO] [stdout]     |                         ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |         DNSRecord::CNAME { len, cname } => cname,
[INFO] [stdout]     |                            ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]  --> src/parser/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct DNSPacket {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 9 |     buf: buffer::ByteBuffer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DNSPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/resolver/network_resolver.rs:228:81
[INFO] [stdout]     |
[INFO] [stdout] 228 |         fn new(responses: Vec<&'a DNSPacket>, error: Option<Box<dyn Error>>) -> MockResolver {
[INFO] [stdout]     |                                -- the lifetime is named here                    ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 228 |         fn new(responses: Vec<&'a DNSPacket>, error: Option<Box<dyn Error>>) -> MockResolver<'a> {
[INFO] [stdout]     |                                                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "85a7d985f48ac72dc15b61602b03fff3675110e43055c455080a927cc6af0b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85a7d985f48ac72dc15b61602b03fff3675110e43055c455080a927cc6af0b46", kill_on_drop: false }`
[INFO] [stdout] 85a7d985f48ac72dc15b61602b03fff3675110e43055c455080a927cc6af0b46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 55af1fe18f84ca5a70a312fa059dd35a4eb9c0b2e15a2c6e7f7170c40e41a888
[INFO] running `Command { std: "docker" "start" "-a" "55af1fe18f84ca5a70a312fa059dd35a4eb9c0b2e15a2c6e7f7170c40e41a888", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `path::Display`
[INFO] [stderr]  --> src/parser/mod.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{error::Error, path::Display};
[INFO] [stderr]   |                         ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/resolver/network_resolver.rs:171:24
[INFO] [stderr]     |
[INFO] [stderr] 171 |         DNSRecord::A { len, ip } => IpAddr::V4(ip),
[INFO] [stderr]     |                        ^^^ help: try ignoring the field: `len: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/resolver/network_resolver.rs:172:27
[INFO] [stderr]     |
[INFO] [stderr] 172 |         DNSRecord::AAAA { len, ip } => IpAddr::V6(ip),
[INFO] [stderr]     |                           ^^^ help: try ignoring the field: `len: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/resolver/network_resolver.rs:180:25
[INFO] [stderr]     |
[INFO] [stderr] 180 |         DNSRecord::NS { len, name_server } => name_server,
[INFO] [stderr]     |                         ^^^ help: try ignoring the field: `len: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]    --> src/resolver/network_resolver.rs:181:28
[INFO] [stderr]     |
[INFO] [stderr] 181 |         DNSRecord::CNAME { len, cname } => cname,
[INFO] [stderr]     |                            ^^^ help: try ignoring the field: `len: _`
[INFO] [stderr] 
[INFO] [stderr] warning: field `buf` is never read
[INFO] [stderr]  --> src/parser/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct DNSPacket {
[INFO] [stderr]   |            --------- field in this struct
[INFO] [stderr] 9 |     buf: buffer::ByteBuffer,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `DNSPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/resolver/network_resolver.rs:228:81
[INFO] [stderr]     |
[INFO] [stderr] 228 |         fn new(responses: Vec<&'a DNSPacket>, error: Option<Box<dyn Error>>) -> MockResolver {
[INFO] [stderr]     |                                -- the lifetime is named here                    ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 228 |         fn new(responses: Vec<&'a DNSPacket>, error: Option<Box<dyn Error>>) -> MockResolver<'a> {
[INFO] [stderr]     |                                                                                             ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `dns` (lib) generated 6 warnings (run `cargo fix --lib -p dns` to apply 5 suggestions)
[INFO] [stderr] warning: `dns` (lib test) generated 7 warnings (6 duplicates) (run `cargo fix --lib -p dns --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dns-14fc22ded8a60f33)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test parser::buffer::tests::buffer_test ... ok
[INFO] [stdout] test parser::tests::dns_packet_to_bytes ... ok
[INFO] [stdout] test parser::tests::parse_aaaa_response_packet ... ok
[INFO] [stdout] test parser::tests::parse_dns_packet_header_question ... ok
[INFO] [stdout] test parser::tests::parse_dns_packet_response ... ok
[INFO] [stdout] test parser::tests::parse_dns_packet_response_only ... ok
[INFO] [stdout] test parser::tests::header_to_bytes ... ok
[INFO] [stdout] test parser::tests::parse_dns_packet_question ... ok
[INFO] [stdout] test parser::tests::parse_aaaa_query_packet ... ok
[INFO] [stdout] test parser::tests::parse_mx_query_packet ... ok
[INFO] [stdout] test parser::tests::parse_multipart_response ... ok
[INFO] [stdout] test parser::tests::parse_ns_packet ... ok
[INFO] [stdout] test parser::tests::parse_mx_response_packet ... ok
[INFO] [stdout] test parser::tests::parse_txt_response_packet ... ok
[INFO] [stdout] test parser::tests::parse_multi_response_types_object ... ok
[INFO] [stdout] test parser::tests::parse_dns_packet_header_response ... ok
[INFO] [stdout] test parser::tests::questions_to_bytes ... ok
[INFO] [stdout] test parser::tests::response_to_bytes ... ok
[INFO] [stdout] test parser::tests::write_multi_response_types_object ... ok
[INFO] [stdout] test resolver::network_resolver::tests::simple_resolve ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- resolver::network_resolver::tests::simple_resolve stdout ----
[INFO] [stdout] INFO id: test, message id: 1234, start recursive resolution, questions: 1
[INFO] [stdout] INFO id: test, message id: 1234, root server resolution: test.local, record type: A, record class: IN
[INFO] [stdout] INTO id: test, resolve test.local with NS address: 170.247.170.2, question is: DNSQuestionPart { buffer_offset: 12, question_name: "test.local", dns_record_type: A, dns_record_class: IN }
[INFO] [stdout] 
[INFO] [stdout] thread 'resolver::network_resolver::tests::simple_resolve' (36) panicked at src/resolver/network_resolver.rs:313:42:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5772ad4fca12 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5772ad4fca12 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::trace_unsynchronized::<std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5772ad4fca12 - std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5772ad4fca12 - <<std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c5ed12ab89cc536a]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5772ad512a7a - <core[c5ed12ab89cc536a]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5772ad512a7a - core[c5ed12ab89cc536a]::fmt::write
[INFO] [stdout]    6:     0x5772ad5018a6 - std[716c9a7a72e5c14e]::io::default_write_fmt::<alloc[9c68fdf4f4f29218]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5772ad5018a6 - <alloc[9c68fdf4f4f29218]::vec::Vec<u8> as std[716c9a7a72e5c14e]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5772ad4dab7f - <std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5772ad4dab7f - std[716c9a7a72e5c14e]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5772ad4f4999 - std[716c9a7a72e5c14e]::panicking::default_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5772ad45818e - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5772ad45818e - test[64760d2bdea328cc]::test_main_with_exit_callback::<test[64760d2bdea328cc]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5772ad4f4b52 - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5772ad4f4b52 - std[716c9a7a72e5c14e]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5772ad4dac38 - std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5772ad4d2509 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_end_short_backtrace::<std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5772ad4dba8d - __rustc[4f0b026143eab78e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5772ad51314c - core[c5ed12ab89cc536a]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5772ad512ec2 - core[c5ed12ab89cc536a]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5772ad43ffd7 - <core[c5ed12ab89cc536a]::result::Result<dns[a37debe54d167015]::parser::DNSPacket, alloc[9c68fdf4f4f29218]::boxed::Box<dyn core[c5ed12ab89cc536a]::error::Error>>>::unwrap
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x5772ad43ffd7 - dns[a37debe54d167015]::resolver::network_resolver::tests::simple_resolve
[INFO] [stdout]                                at /opt/rustwide/workdir/src/resolver/network_resolver.rs:313:42
[INFO] [stdout]   22:     0x5772ad43f117 - dns[a37debe54d167015]::resolver::network_resolver::tests::simple_resolve::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/resolver/network_resolver.rs:268:24
[INFO] [stdout]   23:     0x5772ad442da6 - <dns[a37debe54d167015]::resolver::network_resolver::tests::simple_resolve::{closure#0} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5772ad44c53b - <fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5772ad44c53b - test[64760d2bdea328cc]::__rust_begin_short_backtrace::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5772ad458d9a - test[64760d2bdea328cc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5772ad458d9a - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5772ad458d9a - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5772ad458d9a - std[716c9a7a72e5c14e]::panicking::catch_unwind::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5772ad458d9a - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5772ad458d9a - test[64760d2bdea328cc]::run_test_in_process
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5772ad458d9a - test[64760d2bdea328cc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5772ad453264 - test[64760d2bdea328cc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5772ad453264 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_begin_short_backtrace::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5772ad45b892 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x5772ad45b892 - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5772ad45b892 - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5772ad45b892 - std[716c9a7a72e5c14e]::panicking::catch_unwind::<(), core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5772ad45b892 - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5772ad45b892 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x5772ad45b892 - <std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5772ad4fbf5f - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn core[c5ed12ab89cc536a]::ops::function::FnOnce<(), Output = ()> + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x5772ad4fbf5f - <std[716c9a7a72e5c14e]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x78f9b717baa4 - <unknown>
[INFO] [stdout]   45:     0x78f9b7208a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     resolver::network_resolver::tests::simple_resolve
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 19 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "55af1fe18f84ca5a70a312fa059dd35a4eb9c0b2e15a2c6e7f7170c40e41a888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55af1fe18f84ca5a70a312fa059dd35a4eb9c0b2e15a2c6e7f7170c40e41a888", kill_on_drop: false }`
[INFO] [stdout] 55af1fe18f84ca5a70a312fa059dd35a4eb9c0b2e15a2c6e7f7170c40e41a888
