[INFO] cloning repository https://github.com/bkatrenko/dns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bkatrenko/dns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkatrenko%2Fdns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkatrenko%2Fdns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 087899a13e4186c68d5383991d27eb40516996fb
[INFO] checking bkatrenko/dns against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkatrenko%2Fdns" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bkatrenko/dns
[INFO] finished tweaking git repo https://github.com/bkatrenko/dns
[INFO] tweaked toml for git repo https://github.com/bkatrenko/dns written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bkatrenko/dns on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bkatrenko/dns already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.35
[INFO] [stderr]   Downloaded proc-macro2 v1.0.76
[INFO] [stderr]   Downloaded nanoid v0.4.0
[INFO] [stderr]   Downloaded signal-hook-registry v1.4.1
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded tokio-macros v2.2.0
[INFO] [stderr]   Downloaded num_cpus v1.16.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.17
[INFO] [stderr]   Downloaded getrandom v0.2.12
[INFO] [stderr]   Downloaded addr2line v0.21.0
[INFO] [stderr]   Downloaded miniz_oxide v0.7.1
[INFO] [stderr]   Downloaded cc v1.0.83
[INFO] [stderr]   Downloaded memchr v2.6.4
[INFO] [stderr]   Downloaded mio v0.8.9
[INFO] [stderr]   Downloaded backtrace v0.3.69
[INFO] [stderr]   Downloaded bytes v1.5.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.23
[INFO] [stderr]   Downloaded parking_lot v0.12.1
[INFO] [stderr]   Downloaded syn v2.0.48
[INFO] [stderr]   Downloaded socket2 v0.5.5
[INFO] [stderr]   Downloaded lock_api v0.4.11
[INFO] [stderr]   Downloaded gimli v0.28.0
[INFO] [stderr]   Downloaded object v0.32.1
[INFO] [stderr]   Downloaded redox_syscall v0.4.1
[INFO] [stderr]   Downloaded smallvec v1.11.2
[INFO] [stderr]   Downloaded parking_lot_core v0.9.9
[INFO] [stderr]   Downloaded hermit-abi v0.3.3
[INFO] [stderr]   Downloaded scopeguard v1.2.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.13
[INFO] [stderr]   Downloaded libc v0.2.150
[INFO] [stderr]   Downloaded tokio v1.34.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e38c7d2fea7969e4276b8cc0005a46f6f7a5ba96c214ada3741576a3470cdf3
[INFO] running `Command { std: "docker" "start" "-a" "6e38c7d2fea7969e4276b8cc0005a46f6f7a5ba96c214ada3741576a3470cdf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e38c7d2fea7969e4276b8cc0005a46f6f7a5ba96c214ada3741576a3470cdf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e38c7d2fea7969e4276b8cc0005a46f6f7a5ba96c214ada3741576a3470cdf3", kill_on_drop: false }`
[INFO] [stdout] 6e38c7d2fea7969e4276b8cc0005a46f6f7a5ba96c214ada3741576a3470cdf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4eda4a84f1b88373ff87756d4686e493f115d60d91b3cd8f4fca8a9155ac9a73
[INFO] running `Command { std: "docker" "start" "-a" "4eda4a84f1b88373ff87756d4686e493f115d60d91b3cd8f4fca8a9155ac9a73", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking nanoid v0.4.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `path::Display`
[INFO] [stdout]  --> src/parser/mod.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{error::Error, path::Display};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::Display`
[INFO] [stdout]  --> src/parser/mod.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{error::Error, path::Display};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |         DNSRecord::A { len, ip } => IpAddr::V4(ip),
[INFO] [stdout]     |                        ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:172:27
[INFO] [stdout]     |
[INFO] [stdout] 172 |         DNSRecord::AAAA { len, ip } => IpAddr::V6(ip),
[INFO] [stdout]     |                           ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:180:25
[INFO] [stdout]     |
[INFO] [stdout] 180 |         DNSRecord::NS { len, name_server } => name_server,
[INFO] [stdout]     |                         ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |         DNSRecord::CNAME { len, cname } => cname,
[INFO] [stdout]     |                            ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]  --> src/parser/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct DNSPacket {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 9 |     buf: buffer::ByteBuffer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DNSPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |         DNSRecord::A { len, ip } => IpAddr::V4(ip),
[INFO] [stdout]     |                        ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:172:27
[INFO] [stdout]     |
[INFO] [stdout] 172 |         DNSRecord::AAAA { len, ip } => IpAddr::V6(ip),
[INFO] [stdout]     |                           ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:180:25
[INFO] [stdout]     |
[INFO] [stdout] 180 |         DNSRecord::NS { len, name_server } => name_server,
[INFO] [stdout]     |                         ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/resolver/network_resolver.rs:181:28
[INFO] [stdout]     |
[INFO] [stdout] 181 |         DNSRecord::CNAME { len, cname } => cname,
[INFO] [stdout]     |                            ^^^ help: try ignoring the field: `len: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]  --> src/parser/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct DNSPacket {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 9 |     buf: buffer::ByteBuffer,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DNSPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/resolver/network_resolver.rs:228:32
[INFO] [stdout]     |
[INFO] [stdout] 228 |         fn new(responses: Vec<&'a DNSPacket>, error: Option<Box<dyn Error>>) -> MockResolver {
[INFO] [stdout]     |                                ^^ the lifetime is named here                    ------------ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 228 |         fn new(responses: Vec<&'a DNSPacket>, error: Option<Box<dyn Error>>) -> MockResolver<'a> {
[INFO] [stdout]     |                                                                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.64s
[INFO] running `Command { std: "docker" "inspect" "4eda4a84f1b88373ff87756d4686e493f115d60d91b3cd8f4fca8a9155ac9a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eda4a84f1b88373ff87756d4686e493f115d60d91b3cd8f4fca8a9155ac9a73", kill_on_drop: false }`
[INFO] [stdout] 4eda4a84f1b88373ff87756d4686e493f115d60d91b3cd8f4fca8a9155ac9a73