[INFO] cloning repository https://github.com/s5003597/rDNS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/s5003597/rDNS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs5003597%2FrDNS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs5003597%2FrDNS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 651ca6e5bb8a4640539d894c7f1a7ee064939cd2
[INFO] testing s5003597/rDNS against 1.84.0 for beta-1.85-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs5003597%2FrDNS" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/s5003597/rDNS on toolchain 1.84.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.84.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/s5003597/rDNS
[INFO] finished tweaking git repo https://github.com/s5003597/rDNS
[INFO] tweaked toml for git repo https://github.com/s5003597/rDNS written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/s5003597/rDNS 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" "+1.84.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b13042e75d8553bc339c0b019e99af998d37f02c2fbfc3c6c752312ce55fdd8a
[INFO] running `Command { std: "docker" "start" "-a" "b13042e75d8553bc339c0b019e99af998d37f02c2fbfc3c6c752312ce55fdd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b13042e75d8553bc339c0b019e99af998d37f02c2fbfc3c6c752312ce55fdd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b13042e75d8553bc339c0b019e99af998d37f02c2fbfc3c6c752312ce55fdd8a", kill_on_drop: false }`
[INFO] [stdout] b13042e75d8553bc339c0b019e99af998d37f02c2fbfc3c6c752312ce55fdd8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2090b0c9da404862436a5db2a1145058f51cd36657316fd9362fdc04f6db398
[INFO] running `Command { std: "docker" "start" "-a" "b2090b0c9da404862436a5db2a1145058f51cd36657316fd9362fdc04f6db398", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rdns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:36:38
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stdout]    |                                      ^  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stdout] 36 +     pub fn read(&mut self) -> Result<u8, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:36:44
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stdout]    |                                            ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stdout] 36 +     pub fn read(&mut self) -> Result<(u8), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:48:49
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stdout]    |                                                 ^  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stdout] 48 +     pub fn get(&mut self, pos: usize) -> Result<u8, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:48:55
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stdout]    |                                                       ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stdout] 48 +     pub fn get(&mut self, pos: usize) -> Result<(u8), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:55:69
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stdout]    |                                                                     ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stdout] 55 +     pub fn get_range(&mut self, start: usize, len: usize) -> Result<&[u8], (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:55:78
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stdout]    |                                                                              ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stdout] 55 +     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:63:42
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stdout]    |                                          ^   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stdout] 63 +     pub fn read_u16(&mut self) -> Result<u16, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:63:49
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stdout]    |                                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stdout] 63 +     pub fn read_u16(&mut self) -> Result<(u16), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stdout]    |                                          ^   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stdout] 67 +     pub fn read_u32(&mut self) -> Result<u32, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:67:49
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stdout]    |                                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stdout] 67 +     pub fn read_u32(&mut self) -> Result<(u32), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:76:69
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                     ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), (Error)> {
[INFO] [stdout] 76 +     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:129:52
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn write(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                    ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 129 -     pub fn write(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stdout] 129 +     pub fn write(&mut self, val: u8) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:138:55
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn write_u8(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                       ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 138 -     pub fn write_u8(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stdout] 138 +     pub fn write_u8(&mut self, val: u8) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:143:57
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn write_u16(&mut self, val: u16) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                         ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 143 -     pub fn write_u16(&mut self, val: u16) -> Result<(), (Error)> {
[INFO] [stdout] 143 +     pub fn write_u16(&mut self, val: u16) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:150:57
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn write_u32(&mut self, val: u32) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                         ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 150 -     pub fn write_u32(&mut self, val: u32) -> Result<(), (Error)> {
[INFO] [stdout] 150 +     pub fn write_u32(&mut self, val: u32) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:159:62
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn write_qname(&mut self, qname: &str) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                              ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -     pub fn write_qname(&mut self, qname: &str) -> Result<(), (Error)> {
[INFO] [stdout] 159 +     pub fn write_qname(&mut self, qname: &str) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/header.rs:49:73
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 49 +     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/header.rs:76:70
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                      ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 76 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/dns_packet.rs:35:65
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]    |                                                                 ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 35 +     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<DnsPacket, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/dns_packet.rs:35:78
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]    |                                                                              ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 35 +     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/dns_packet.rs:63:74
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                          ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 63 +     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/questions.rs:19:73
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 -     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 19 +     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/questions.rs:27:74
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                          ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 -     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 27 +     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/record.rs:49:58
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stdout]    |                                                          ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stdout] 49 +     pub fn read(buffer: &mut BytePacketBuffer) -> Result<DnsRecord, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/record.rs:49:71
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stdout]    |                                                                       ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stdout] 49 +     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/record.rs:141:66
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stdout]     |                                                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 141 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stdout] 141 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<usize, (Error)> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/record.rs:141:75
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stdout]     |                                                                           ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 141 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stdout] 141 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:25:73
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]    |                                                                         ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 - fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 25 + fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<DnsPacket, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:25:86
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]    |                                                                                      ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 - fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 25 + fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:105:62
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]     |                                                              ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 105 - fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 105 + fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<DnsPacket, (Error)> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:105:75
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]     |                                                                           ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 105 - fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 105 + fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_2` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn test_2() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "b2090b0c9da404862436a5db2a1145058f51cd36657316fd9362fdc04f6db398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2090b0c9da404862436a5db2a1145058f51cd36657316fd9362fdc04f6db398", kill_on_drop: false }`
[INFO] [stdout] b2090b0c9da404862436a5db2a1145058f51cd36657316fd9362fdc04f6db398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59a7d09f0a5c90f8f9074d2c2e72876c66b1cd2cf1cc8e0e37d4661e5838f76f
[INFO] running `Command { std: "docker" "start" "-a" "59a7d09f0a5c90f8f9074d2c2e72876c66b1cd2cf1cc8e0e37d4661e5838f76f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rdns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:36:38
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stdout]    |                                      ^  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stdout] 36 +     pub fn read(&mut self) -> Result<u8, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:36:44
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stdout]    |                                            ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stdout] 36 +     pub fn read(&mut self) -> Result<(u8), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:48:49
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stdout]    |                                                 ^  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stdout] 48 +     pub fn get(&mut self, pos: usize) -> Result<u8, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:48:55
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stdout]    |                                                       ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stdout] 48 +     pub fn get(&mut self, pos: usize) -> Result<(u8), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:55:69
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stdout]    |                                                                     ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stdout] 55 +     pub fn get_range(&mut self, start: usize, len: usize) -> Result<&[u8], (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:55:78
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stdout]    |                                                                              ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stdout] 55 +     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:63:42
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stdout]    |                                          ^   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stdout] 63 +     pub fn read_u16(&mut self) -> Result<u16, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:63:49
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stdout]    |                                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stdout] 63 +     pub fn read_u16(&mut self) -> Result<(u16), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stdout]    |                                          ^   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stdout] 67 +     pub fn read_u32(&mut self) -> Result<u32, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:67:49
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stdout]    |                                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stdout] 67 +     pub fn read_u32(&mut self) -> Result<(u32), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bytepacketbuffer.rs:76:69
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                     ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), (Error)> {
[INFO] [stdout] 76 +     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:129:52
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn write(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                    ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 129 -     pub fn write(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stdout] 129 +     pub fn write(&mut self, val: u8) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:138:55
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn write_u8(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                       ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 138 -     pub fn write_u8(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stdout] 138 +     pub fn write_u8(&mut self, val: u8) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:143:57
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn write_u16(&mut self, val: u16) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                         ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 143 -     pub fn write_u16(&mut self, val: u16) -> Result<(), (Error)> {
[INFO] [stdout] 143 +     pub fn write_u16(&mut self, val: u16) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:150:57
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn write_u32(&mut self, val: u32) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                         ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 150 -     pub fn write_u32(&mut self, val: u32) -> Result<(), (Error)> {
[INFO] [stdout] 150 +     pub fn write_u32(&mut self, val: u32) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/bytepacketbuffer.rs:159:62
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn write_qname(&mut self, qname: &str) -> Result<(), (Error)> {
[INFO] [stdout]     |                                                              ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -     pub fn write_qname(&mut self, qname: &str) -> Result<(), (Error)> {
[INFO] [stdout] 159 +     pub fn write_qname(&mut self, qname: &str) -> Result<(), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/header.rs:49:73
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 49 +     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/header.rs:76:70
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                      ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 76 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/dns_packet.rs:35:65
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]    |                                                                 ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 35 +     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<DnsPacket, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/dns_packet.rs:35:78
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]    |                                                                              ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 35 +     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/dns_packet.rs:63:74
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                          ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 63 +     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/questions.rs:19:73
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 -     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 19 +     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/questions.rs:27:74
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout]    |                                                                          ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 -     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stdout] 27 +     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/record.rs:49:58
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stdout]    |                                                          ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stdout] 49 +     pub fn read(buffer: &mut BytePacketBuffer) -> Result<DnsRecord, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/record.rs:49:71
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stdout]    |                                                                       ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stdout] 49 +     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/record.rs:141:66
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stdout]     |                                                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 141 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stdout] 141 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<usize, (Error)> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/record.rs:141:75
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stdout]     |                                                                           ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 141 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stdout] 141 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:25:73
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]    |                                                                         ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 - fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 25 + fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<DnsPacket, (Error)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:25:86
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]    |                                                                                      ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 - fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 25 + fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:105:62
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]     |                                                              ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 105 - fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 105 + fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<DnsPacket, (Error)> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:105:75
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout]     |                                                                           ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 105 - fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stdout] 105 + fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), Error> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_2` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn test_2() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "59a7d09f0a5c90f8f9074d2c2e72876c66b1cd2cf1cc8e0e37d4661e5838f76f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59a7d09f0a5c90f8f9074d2c2e72876c66b1cd2cf1cc8e0e37d4661e5838f76f", kill_on_drop: false }`
[INFO] [stdout] 59a7d09f0a5c90f8f9074d2c2e72876c66b1cd2cf1cc8e0e37d4661e5838f76f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] efd7cd8e99f8c28ec46fbcce54bbb3b8c0cab1a856df6148b77f5dcf0d23741e
[INFO] running `Command { std: "docker" "start" "-a" "efd7cd8e99f8c28ec46fbcce54bbb3b8c0cab1a856df6148b77f5dcf0d23741e", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:36:38
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stderr]    |                                      ^  ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 36 -     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stderr] 36 +     pub fn read(&mut self) -> Result<u8, (Error)> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:36:44
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stderr]    |                                            ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 36 -     pub fn read(&mut self) -> Result<(u8), (Error)> {
[INFO] [stderr] 36 +     pub fn read(&mut self) -> Result<(u8), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:48:49
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stderr]    |                                                 ^  ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 48 -     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stderr] 48 +     pub fn get(&mut self, pos: usize) -> Result<u8, (Error)> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:48:55
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stderr]    |                                                       ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 48 -     pub fn get(&mut self, pos: usize) -> Result<(u8), (Error)> {
[INFO] [stderr] 48 +     pub fn get(&mut self, pos: usize) -> Result<(u8), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:55:69
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stderr]    |                                                                     ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 55 -     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stderr] 55 +     pub fn get_range(&mut self, start: usize, len: usize) -> Result<&[u8], (Error)> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:55:78
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stderr]    |                                                                              ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 55 -     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), (Error)> {
[INFO] [stderr] 55 +     pub fn get_range(&mut self, start: usize, len: usize) -> Result<(&[u8]), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:63:42
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stderr]    |                                          ^   ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 63 -     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stderr] 63 +     pub fn read_u16(&mut self) -> Result<u16, (Error)> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:63:49
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stderr]    |                                                 ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 63 -     pub fn read_u16(&mut self) -> Result<(u16), (Error)> {
[INFO] [stderr] 63 +     pub fn read_u16(&mut self) -> Result<(u16), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:67:42
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stderr]    |                                          ^   ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 67 -     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stderr] 67 +     pub fn read_u32(&mut self) -> Result<u32, (Error)> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:67:49
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stderr]    |                                                 ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 67 -     pub fn read_u32(&mut self) -> Result<(u32), (Error)> {
[INFO] [stderr] 67 +     pub fn read_u32(&mut self) -> Result<(u32), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/bytepacketbuffer.rs:76:69
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), (Error)> {
[INFO] [stderr]    |                                                                     ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 76 -     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), (Error)> {
[INFO] [stderr] 76 +     pub fn read_qname(&mut self, outstr: &mut String) -> Result<(), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/bytepacketbuffer.rs:129:52
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn write(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stderr]     |                                                    ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 129 -     pub fn write(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stderr] 129 +     pub fn write(&mut self, val: u8) -> Result<(), Error> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/bytepacketbuffer.rs:138:55
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn write_u8(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stderr]     |                                                       ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 138 -     pub fn write_u8(&mut self, val: u8) -> Result<(), (Error)> {
[INFO] [stderr] 138 +     pub fn write_u8(&mut self, val: u8) -> Result<(), Error> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/bytepacketbuffer.rs:143:57
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub fn write_u16(&mut self, val: u16) -> Result<(), (Error)> {
[INFO] [stderr]     |                                                         ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 143 -     pub fn write_u16(&mut self, val: u16) -> Result<(), (Error)> {
[INFO] [stderr] 143 +     pub fn write_u16(&mut self, val: u16) -> Result<(), Error> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/bytepacketbuffer.rs:150:57
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn write_u32(&mut self, val: u32) -> Result<(), (Error)> {
[INFO] [stderr]     |                                                         ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 150 -     pub fn write_u32(&mut self, val: u32) -> Result<(), (Error)> {
[INFO] [stderr] 150 +     pub fn write_u32(&mut self, val: u32) -> Result<(), Error> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/bytepacketbuffer.rs:159:62
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn write_qname(&mut self, qname: &str) -> Result<(), (Error)> {
[INFO] [stderr]     |                                                              ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 159 -     pub fn write_qname(&mut self, qname: &str) -> Result<(), (Error)> {
[INFO] [stderr] 159 +     pub fn write_qname(&mut self, qname: &str) -> Result<(), Error> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/header.rs:49:73
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr]    |                                                                         ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 49 -     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr] 49 +     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/header.rs:76:70
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr]    |                                                                      ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 76 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr] 76 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/dns_packet.rs:35:65
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr]    |                                                                 ^         ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 35 -     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr] 35 +     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<DnsPacket, (Error)> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/dns_packet.rs:35:78
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr]    |                                                                              ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 35 -     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr] 35 +     pub fn from_buffer(buffer: &mut BytePacketBuffer) -> Result<(DnsPacket), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/dns_packet.rs:63:74
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr]    |                                                                          ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 63 -     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr] 63 +     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/questions.rs:19:73
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr]    |                                                                         ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 19 -     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr] 19 +     pub fn read(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/questions.rs:27:74
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr]    |                                                                          ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 27 -     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), (Error)> {
[INFO] [stderr] 27 +     pub fn write(&mut self, buffer: &mut BytePacketBuffer) -> Result<(), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/record.rs:49:58
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stderr]    |                                                          ^         ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 49 -     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stderr] 49 +     pub fn read(buffer: &mut BytePacketBuffer) -> Result<DnsRecord, (Error)> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/record.rs:49:71
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stderr]    |                                                                       ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 49 -     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), (Error)> {
[INFO] [stderr] 49 +     pub fn read(buffer: &mut BytePacketBuffer) -> Result<(DnsRecord), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/record.rs:141:66
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stderr]     |                                                                  ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 141 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stderr] 141 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<usize, (Error)> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/record.rs:141:75
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stderr]     |                                                                           ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 141 -     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), (Error)> {
[INFO] [stderr] 141 +     pub fn write(&self, buffer: &mut BytePacketBuffer) -> Result<(usize), Error> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/main.rs:25:73
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr]    |                                                                         ^         ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 25 - fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr] 25 + fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<DnsPacket, (Error)> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/main.rs:25:86
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr]    |                                                                                      ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 25 - fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr] 25 + fn lookup(qname: &str, qtype: QueryType, server: (&str, u16)) -> Result<(DnsPacket), Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:105:62
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr]     |                                                              ^         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 105 - fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr] 105 + fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<DnsPacket, (Error)> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:105:75
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr]     |                                                                           ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 105 - fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), (Error)> {
[INFO] [stderr] 105 + fn recursive_lookup(qname: &str, qtype: QueryType) -> Result<(DnsPacket), Error> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_2` is never used
[INFO] [stderr]   --> src/main.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn test_2() {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rdns` (bin "rdns" test) generated 32 warnings (run `cargo fix --bin "rdns" --tests` to apply 31 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rdns-0300b9c3c76377a4)
[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" "efd7cd8e99f8c28ec46fbcce54bbb3b8c0cab1a856df6148b77f5dcf0d23741e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd7cd8e99f8c28ec46fbcce54bbb3b8c0cab1a856df6148b77f5dcf0d23741e", kill_on_drop: false }`
[INFO] [stdout] efd7cd8e99f8c28ec46fbcce54bbb3b8c0cab1a856df6148b77f5dcf0d23741e