[INFO] cloning repository https://github.com/cat916/dnsweekend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cat916/dnsweekend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcat916%2Fdnsweekend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcat916%2Fdnsweekend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 070f05e76726e83e4445d659c6e9a85133f66996
[INFO] checking cat916/dnsweekend against try#f70ee28831acc074c109afab32d287057c3eca46 for pr-149389
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcat916%2Fdnsweekend" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cat916/dnsweekend
[INFO] finished tweaking git repo https://github.com/cat916/dnsweekend
[INFO] tweaked toml for git repo https://github.com/cat916/dnsweekend written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cat916/dnsweekend on toolchain f70ee28831acc074c109afab32d287057c3eca46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cat916/dnsweekend 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" "+f70ee28831acc074c109afab32d287057c3eca46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d9df286754f852f20772766fe63160257118ffc74639beb023df9d1b5813794
[INFO] running `Command { std: "docker" "start" "-a" "4d9df286754f852f20772766fe63160257118ffc74639beb023df9d1b5813794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d9df286754f852f20772766fe63160257118ffc74639beb023df9d1b5813794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d9df286754f852f20772766fe63160257118ffc74639beb023df9d1b5813794", kill_on_drop: false }`
[INFO] [stdout] 4d9df286754f852f20772766fe63160257118ffc74639beb023df9d1b5813794
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2538ac5f67314d961310b7654d91c38d2e8811aefeaf904aa3873d8b81a3be00
[INFO] running `Command { std: "docker" "start" "-a" "2538ac5f67314d961310b7654d91c38d2e8811aefeaf904aa3873d8b81a3be00", kill_on_drop: false }`
[INFO] [stderr]     Checking dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `TYPE_TXT` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const TYPE_TXT: u16 = 16;
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:86:10
[INFO] [stdout]    |
[INFO] [stdout] 86 |     Data(Vec<u8>),
[INFO] [stdout]    |     ---- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DNSRecordData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 86 -     Data(Vec<u8>),
[INFO] [stdout] 86 +     Data(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TXT` is never constructed
[INFO] [stdout]   --> src/main.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 82 | enum DNSRecordData {
[INFO] [stdout]    |      ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 85 |     TXT(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DNSRecordData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `rclass`, `ttl`, and `rdlength` are never read
[INFO] [stdout]   --> src/main.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | struct DNSRecord {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 91 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 92 |     rtype: u16,
[INFO] [stdout] 93 |     rclass: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 94 |     ttl: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 95 |     rdlength: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DNSRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header` and `questions` are never read
[INFO] [stdout]    --> src/main.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct DNSPacket {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 165 |     header: DNSHeader,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 166 |     questions: Vec<DNSQuestion>,
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ipv4_to_string` is never used
[INFO] [stdout]    --> src/main.rs:341:4
[INFO] [stdout]     |
[INFO] [stdout] 341 | fn ipv4_to_string(data: &[u8]) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TYPE_TXT` is never used
[INFO] [stdout]  --> src/main.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const TYPE_TXT: u16 = 16;
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RECURSION_DESIRED` is never used
[INFO] [stdout]   --> src/main.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const RECURSION_DESIRED: u16 = 1 << 8;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:86:10
[INFO] [stdout]    |
[INFO] [stdout] 86 |     Data(Vec<u8>),
[INFO] [stdout]    |     ---- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DNSRecordData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 86 -     Data(Vec<u8>),
[INFO] [stdout] 86 +     Data(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TXT` is never constructed
[INFO] [stdout]   --> src/main.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 82 | enum DNSRecordData {
[INFO] [stdout]    |      ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 85 |     TXT(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DNSRecordData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `rclass`, `ttl`, and `rdlength` are never read
[INFO] [stdout]   --> src/main.rs:91:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | struct DNSRecord {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 91 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 92 |     rtype: u16,
[INFO] [stdout] 93 |     rclass: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 94 |     ttl: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 95 |     rdlength: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DNSRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header` and `questions` are never read
[INFO] [stdout]    --> src/main.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct DNSPacket {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 165 |     header: DNSHeader,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 166 |     questions: Vec<DNSQuestion>,
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ipv4_to_string` is never used
[INFO] [stdout]    --> src/main.rs:341:4
[INFO] [stdout]     |
[INFO] [stdout] 341 | fn ipv4_to_string(data: &[u8]) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "2538ac5f67314d961310b7654d91c38d2e8811aefeaf904aa3873d8b81a3be00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2538ac5f67314d961310b7654d91c38d2e8811aefeaf904aa3873d8b81a3be00", kill_on_drop: false }`
[INFO] [stdout] 2538ac5f67314d961310b7654d91c38d2e8811aefeaf904aa3873d8b81a3be00
