[INFO] cloning repository https://github.com/oyoshot/toy-dns-resolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oyoshot/toy-dns-resolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foyoshot%2Ftoy-dns-resolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foyoshot%2Ftoy-dns-resolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b63a34f957f1642045a8a388b7786ffafd964a7
[INFO] testing oyoshot/toy-dns-resolver against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foyoshot%2Ftoy-dns-resolver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/oyoshot/toy-dns-resolver
[INFO] finished tweaking git repo https://github.com/oyoshot/toy-dns-resolver
[INFO] tweaked toml for git repo https://github.com/oyoshot/toy-dns-resolver written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/oyoshot/toy-dns-resolver on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/oyoshot/toy-dns-resolver 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.10
[INFO] [stderr]   Downloaded zerocopy v0.6.5
[INFO] [stderr]   Downloaded indexmap v2.0.2
[INFO] [stderr]   Downloaded winnow v0.5.17
[INFO] [stderr]   Downloaded zerocopy-derive v0.6.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89ca6a226ea046137758ed041b4ff0fd992d500696d5b0dcd5fd894960dd573e
[INFO] running `Command { std: "docker" "start" "-a" "89ca6a226ea046137758ed041b4ff0fd992d500696d5b0dcd5fd894960dd573e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89ca6a226ea046137758ed041b4ff0fd992d500696d5b0dcd5fd894960dd573e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ca6a226ea046137758ed041b4ff0fd992d500696d5b0dcd5fd894960dd573e", kill_on_drop: false }`
[INFO] [stdout] 89ca6a226ea046137758ed041b4ff0fd992d500696d5b0dcd5fd894960dd573e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1241fdfac939b9796b4c3e3d826abd0d9fab1ebbfd5b4a05205ba9ad3580182e
[INFO] running `Command { std: "docker" "start" "-a" "1241fdfac939b9796b4c3e3d826abd0d9fab1ebbfd5b4a05205ba9ad3580182e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling winnow v0.5.17
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling indexmap v2.0.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling zerocopy-derive v0.6.5
[INFO] [stderr]    Compiling zerocopy v0.6.5
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling num_enum_derive v0.6.1
[INFO] [stderr]    Compiling num_enum v0.6.1
[INFO] [stderr]    Compiling toy-dns-resolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `kind`, `class`, and `ttl` are never read
[INFO] [stdout]    --> src/libs.rs:223:5
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub struct DnsRecord {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 223 |     name: Vec<u8>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 224 |     kind: RecordType,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 225 |     class: Class,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 226 |     ttl: u32,
[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]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `questions`, `authorities`, and `additional` are never read
[INFO] [stdout]    --> src/libs.rs:264:9
[INFO] [stdout]     |
[INFO] [stdout] 263 | struct DnsPacket {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 264 |     pub header: DnsHeader,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 265 |     pub questions: Vec<DnsQuestion>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 266 |     pub answers: Vec<DnsRecord>,
[INFO] [stdout] 267 |     pub authorities: Vec<DnsRecord>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 268 |     pub additional: Vec<DnsRecord>,
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.46s
[INFO] running `Command { std: "docker" "inspect" "1241fdfac939b9796b4c3e3d826abd0d9fab1ebbfd5b4a05205ba9ad3580182e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1241fdfac939b9796b4c3e3d826abd0d9fab1ebbfd5b4a05205ba9ad3580182e", kill_on_drop: false }`
[INFO] [stdout] 1241fdfac939b9796b4c3e3d826abd0d9fab1ebbfd5b4a05205ba9ad3580182e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c29ce2aaf79cbb2ca40a06afc4d770a4811a271d96dc6e469d7c21fa2a18e55
[INFO] running `Command { std: "docker" "start" "-a" "0c29ce2aaf79cbb2ca40a06afc4d770a4811a271d96dc6e469d7c21fa2a18e55", kill_on_drop: false }`
[INFO] [stderr]    Compiling toy-dns-resolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `kind`, `class`, and `ttl` are never read
[INFO] [stdout]    --> src/libs.rs:223:5
[INFO] [stdout]     |
[INFO] [stdout] 222 | pub struct DnsRecord {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 223 |     name: Vec<u8>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 224 |     kind: RecordType,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 225 |     class: Class,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 226 |     ttl: u32,
[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]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header`, `questions`, `authorities`, and `additional` are never read
[INFO] [stdout]    --> src/libs.rs:264:9
[INFO] [stdout]     |
[INFO] [stdout] 263 | struct DnsPacket {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 264 |     pub header: DnsHeader,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 265 |     pub questions: Vec<DnsQuestion>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 266 |     pub answers: Vec<DnsRecord>,
[INFO] [stdout] 267 |     pub authorities: Vec<DnsRecord>,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 268 |     pub additional: Vec<DnsRecord>,
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "0c29ce2aaf79cbb2ca40a06afc4d770a4811a271d96dc6e469d7c21fa2a18e55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c29ce2aaf79cbb2ca40a06afc4d770a4811a271d96dc6e469d7c21fa2a18e55", kill_on_drop: false }`
[INFO] [stdout] 0c29ce2aaf79cbb2ca40a06afc4d770a4811a271d96dc6e469d7c21fa2a18e55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bbee5eb1ea886056e5051213bc3e5f9e783d8a1f10c9fc706b1734355a29ce4c
[INFO] running `Command { std: "docker" "start" "-a" "bbee5eb1ea886056e5051213bc3e5f9e783d8a1f10c9fc706b1734355a29ce4c", kill_on_drop: false }`
[INFO] [stderr] warning: fields `name`, `kind`, `class`, and `ttl` are never read
[INFO] [stderr]    --> src/libs.rs:223:5
[INFO] [stderr]     |
[INFO] [stderr] 222 | pub struct DnsRecord {
[INFO] [stderr]     |            --------- fields in this struct
[INFO] [stderr] 223 |     name: Vec<u8>,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 224 |     kind: RecordType,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 225 |     class: Class,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 226 |     ttl: u32,
[INFO] [stderr]     |     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `DnsRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `header`, `questions`, `authorities`, and `additional` are never read
[INFO] [stderr]    --> src/libs.rs:264:9
[INFO] [stderr]     |
[INFO] [stderr] 263 | struct DnsPacket {
[INFO] [stderr]     |        --------- fields in this struct
[INFO] [stderr] 264 |     pub header: DnsHeader,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 265 |     pub questions: Vec<DnsQuestion>,
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 266 |     pub answers: Vec<DnsRecord>,
[INFO] [stderr] 267 |     pub authorities: Vec<DnsRecord>,
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 268 |     pub additional: Vec<DnsRecord>,
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `DnsPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `toy-dns-resolver` (bin "toy-dns-resolver" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/toy_dns_resolver-ea06c6ca7f347a9b)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test libs::test::test_decode_name ... ok
[INFO] [stdout] test libs::test::test_encode_dns_name ... ok
[INFO] [stdout] test libs::test::test_header ... ok
[INFO] [stdout] test libs::test::test_build_query ... ok
[INFO] [stdout] test libs::test::send_udp_request_to_google_dns_resolver ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- libs::test::send_udp_request_to_google_dns_resolver stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'libs::test::send_udp_request_to_google_dns_resolver' (25) panicked at src/libs.rs:339:49:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 101, kind: NetworkUnreachable, message: "Network is unreachable" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x588d64815722 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x588d64815722 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized::<std[3b51380354919863]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x588d64815722 - std[3b51380354919863]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x588d64815722 - <<std[3b51380354919863]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x588d6482b82a - <core[27de1724e4349be2]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x588d6482b82a - core[27de1724e4349be2]::fmt::write
[INFO] [stdout]    6:     0x588d6481abd6 - std[3b51380354919863]::io::default_write_fmt::<alloc[a57f19327c0ad893]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x588d6481abd6 - <alloc[a57f19327c0ad893]::vec::Vec<u8> as std[3b51380354919863]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x588d647f307f - <std[3b51380354919863]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x588d647f307f - std[3b51380354919863]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x588d6480d469 - std[3b51380354919863]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x588d647688ee - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x588d647688ee - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::<test[182b2e79ecd7bbd9]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x588d6480d622 - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x588d6480d622 - std[3b51380354919863]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x588d647f3138 - std[3b51380354919863]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x588d647e7da9 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace::<std[3b51380354919863]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x588d647f424d - __rustc[d79c0ace40940972]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x588d6482befc - core[27de1724e4349be2]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x588d6482bc72 - core[27de1724e4349be2]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x588d6475af19 - <core[27de1724e4349be2]::result::Result<usize, std[3b51380354919863]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x588d6475af19 - toy_dns_resolver[5452fc73ca41ede6]::libs::test::send_udp_request_to_google_dns_resolver
[INFO] [stdout]                                at /opt/rustwide/workdir/src/libs.rs:339:49
[INFO] [stdout]   22:     0x588d64759cd7 - toy_dns_resolver[5452fc73ca41ede6]::libs::test::send_udp_request_to_google_dns_resolver::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/libs.rs:336:49
[INFO] [stdout]   23:     0x588d64758b76 - <toy_dns_resolver[5452fc73ca41ede6]::libs::test::send_udp_request_to_google_dns_resolver::{closure#0} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x588d6475cc9b - <fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x588d6475cc9b - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x588d647694fa - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x588d647694fa - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x588d647694fa - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x588d647694fa - std[3b51380354919863]::panicking::catch_unwind::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x588d647694fa - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x588d647694fa - test[182b2e79ecd7bbd9]::run_test_in_process
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x588d647694fa - test[182b2e79ecd7bbd9]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x588d64764aa4 - test[182b2e79ecd7bbd9]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x588d64764aa4 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x588d6476bff2 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x588d6476bff2 - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x588d6476bff2 - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x588d6476bff2 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x588d6476bff2 - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x588d6476bff2 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x588d6476bff2 - <std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x588d64814ebf - <alloc[a57f19327c0ad893]::boxed::Box<dyn core[27de1724e4349be2]::ops::function::FnOnce<(), Output = ()> + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x588d64814ebf - <std[3b51380354919863]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x7c2745c74aa4 - <unknown>
[INFO] [stdout]   45:     0x7c2745d01a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     libs::test::send_udp_request_to_google_dns_resolver
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin toy-dns-resolver`
[INFO] running `Command { std: "docker" "inspect" "bbee5eb1ea886056e5051213bc3e5f9e783d8a1f10c9fc706b1734355a29ce4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbee5eb1ea886056e5051213bc3e5f9e783d8a1f10c9fc706b1734355a29ce4c", kill_on_drop: false }`
[INFO] [stdout] bbee5eb1ea886056e5051213bc3e5f9e783d8a1f10c9fc706b1734355a29ce4c
