[INFO] cloning repository https://github.com/Jessepan123456/DNS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jessepan123456/DNS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJessepan123456%2FDNS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJessepan123456%2FDNS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99d3ce4e73eb9b8f38f0966126006197f285b46d
[INFO] checking Jessepan123456/DNS against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJessepan123456%2FDNS" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Jessepan123456/DNS
[INFO] finished tweaking git repo https://github.com/Jessepan123456/DNS
[INFO] tweaked toml for git repo https://github.com/Jessepan123456/DNS written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jessepan123456/DNS on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Jessepan123456/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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c
[INFO] running `Command { std: "docker" "start" "0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking DNS v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/DNS/packetbuffer.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |             return Err("End of buffer(read)".into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 41 -             return Err("End of buffer(read)".into());
[INFO] [stdout] 41 +             return Err("End of buffer(read)");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 41 -             return Err("End of buffer(read)".into());
[INFO] [stdout] 41 +             return Err(<&str as Into<_>>::into("End of buffer(read)"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/DNS/packetbuffer.rs:52:24
[INFO] [stdout]    |
[INFO] [stdout] 52 |             return Err("End of buffer(get)".into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 52 -             return Err("End of buffer(get)".into());
[INFO] [stdout] 52 +             return Err("End of buffer(get)");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 52 -             return Err("End of buffer(get)".into());
[INFO] [stdout] 52 +             return Err(<&str as Into<_>>::into("End of buffer(get)"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/DNS/packetbuffer.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return Err("End of buffer(get_range)".into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 60 -             return Err("End of buffer(get_range)".into());
[INFO] [stdout] 60 +             return Err("End of buffer(get_range)");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 60 -             return Err("End of buffer(get_range)".into());
[INFO] [stdout] 60 +             return Err(<&str as Into<_>>::into("End of buffer(get_range)"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String`
[INFO] [stdout]   --> src/DNS/packetbuffer.rs:98:28
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 return Err(format!("Limit of {} jumps exceeded", max_jumps).into());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/DNS/Body/dnsrecord.rs:263:17
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 buffer.write_u8(text_bytes.len() as u8);  
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 let _ = buffer.write_u8(text_bytes.len() as u8);  
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `DNS` (lib test) due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/DNS/packetbuffer.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |             return Err("End of buffer(read)".into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 41 -             return Err("End of buffer(read)".into());
[INFO] [stdout] 41 +             return Err("End of buffer(read)");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 41 -             return Err("End of buffer(read)".into());
[INFO] [stdout] 41 +             return Err(<&str as Into<_>>::into("End of buffer(read)"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/DNS/packetbuffer.rs:52:24
[INFO] [stdout]    |
[INFO] [stdout] 52 |             return Err("End of buffer(get)".into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 52 -             return Err("End of buffer(get)".into());
[INFO] [stdout] 52 +             return Err("End of buffer(get)");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 52 -             return Err("End of buffer(get)".into());
[INFO] [stdout] 52 +             return Err(<&str as Into<_>>::into("End of buffer(get)"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/DNS/packetbuffer.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return Err("End of buffer(get_range)".into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 60 -             return Err("End of buffer(get_range)".into());
[INFO] [stdout] 60 +             return Err("End of buffer(get_range)");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 60 -             return Err("End of buffer(get_range)".into());
[INFO] [stdout] 60 +             return Err(<&str as Into<_>>::into("End of buffer(get_range)"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String`
[INFO] [stdout]   --> src/DNS/packetbuffer.rs:98:28
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 return Err(format!("Limit of {} jumps exceeded", max_jumps).into());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `DNS` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `dns`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/DNS/Body/dnsrecord.rs:263:17
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 buffer.write_u8(text_bytes.len() as u8);  
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 let _ = buffer.write_u8(text_bytes.len() as u8);  
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `DNS` (lib) due to 4 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c", kill_on_drop: false }`
[INFO] [stdout] 0945c7bd7cb495b478c807d145209ba38372a36e01d920a9d48749e8b7ba595c
