[INFO] cloning repository https://github.com/awesomecuber/dns_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/awesomecuber/dns_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawesomecuber%2Fdns_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawesomecuber%2Fdns_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81ccc4c36471fa2c9ba6b1253319414f12b7145f
[INFO] testing awesomecuber/dns_learn against 1.98.0-beta.1 for beta-1.98-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawesomecuber%2Fdns_learn" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/awesomecuber/dns_learn
[INFO] finished tweaking git repo https://github.com/awesomecuber/dns_learn
[INFO] tweaked toml for git repo https://github.com/awesomecuber/dns_learn written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/awesomecuber/dns_learn on toolchain 1.98.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/awesomecuber/dns_learn 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" "+1.98.0-beta.1" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing awesomecuber/dns_learn against 1.98.0-beta.1 for beta-1.98-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawesomecuber%2Fdns_learn" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/awesomecuber/dns_learn
[INFO] finished tweaking git repo https://github.com/awesomecuber/dns_learn
[INFO] tweaked toml for git repo https://github.com/awesomecuber/dns_learn written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/awesomecuber/dns_learn on toolchain 1.98.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/awesomecuber/dns_learn 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" "+1.98.0-beta.1" "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-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684
[INFO] running `Command { std: "docker" "start" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684", 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" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling dns_learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/dns_packet/packet_buffer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         Ok(todo!())
[INFO] [stdout]    |         ^^ ------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/dns_packet/mod.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn from_bytes(bytes: &[u8]) -> Result<DnsPacket, String> {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `packet`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let packet = DnsPacket::from_bytes(&bytes);
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header` and `questions` are never read
[INFO] [stdout]   --> src/dns_packet/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct DnsPacket {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 10 |     pub header: DnsHeader,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 11 |     pub 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]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_buffer` is never used
[INFO] [stdout]   --> src/dns_packet/dns_header.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl DnsHeader {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn from_buffer(buffer: &mut PacketBuffer) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_bit_set` is never used
[INFO] [stdout]   --> src/dns_packet/dns_header.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn is_bit_set(byte: u8, nth_bit: u8) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PacketBuffer` is never constructed
[INFO] [stdout]  --> src/dns_packet/packet_buffer.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct PacketBuffer<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_bytes`, `read_u8`, `read_u16`, `read_u32`, and `read_qname` are never used
[INFO] [stdout]   --> src/dns_packet/packet_buffer.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl<'a> PacketBuffer<'a> {
[INFO] [stdout]    | ------------------------- associated items in this implementation
[INFO] [stdout]  7 |     pub fn from_bytes(bytes: &'a [u8]) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub fn read_u8(&mut self) -> Result<u8, String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn read_u16(&mut self) -> Result<u16, String> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn read_u32(&mut self) -> Result<u32, String> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn read_qname(&mut self) -> Result<String, String> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling dns_learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/dns_packet/packet_buffer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         Ok(todo!())
[INFO] [stdout]    |         ^^ ------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/dns_packet/mod.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn from_bytes(bytes: &[u8]) -> Result<DnsPacket, String> {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `packet`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let packet = DnsPacket::from_bytes(&bytes);
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `header` and `questions` are never read
[INFO] [stdout]   --> src/dns_packet/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct DnsPacket {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 10 |     pub header: DnsHeader,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 11 |     pub 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]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_u32` and `read_qname` are never used
[INFO] [stdout]   --> src/dns_packet/packet_buffer.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl<'a> PacketBuffer<'a> {
[INFO] [stdout]    | ------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn read_u32(&mut self) -> Result<u32, String> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn read_qname(&mut self) -> Result<String, String> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable call
[INFO] [stderr]   --> src/dns_packet/packet_buffer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         Ok(todo!())
[INFO] [stderr]    |         ^^ ------- any code following this expression is unreachable
[INFO] [stderr]    |         |
[INFO] [stderr]    |         unreachable call
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes`
[INFO] [stderr]   --> src/dns_packet/mod.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn from_bytes(bytes: &[u8]) -> Result<DnsPacket, String> {
[INFO] [stderr]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `packet`
[INFO] [stderr]  --> src/main.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let packet = DnsPacket::from_bytes(&bytes);
[INFO] [stderr]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `header` and `questions` are never read
[INFO] [stderr]   --> src/dns_packet/mod.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub struct DnsPacket {
[INFO] [stderr]    |            --------- fields in this struct
[INFO] [stderr] 10 |     pub header: DnsHeader,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 11 |     pub questions: Vec<DnsQuestion>,
[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]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `read_u32` and `read_qname` are never used
[INFO] [stderr]   --> src/dns_packet/packet_buffer.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr]  6 | impl<'a> PacketBuffer<'a> {
[INFO] [stderr]    | ------------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 23 |     pub fn read_u32(&mut self) -> Result<u32, String> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn read_qname(&mut self) -> Result<String, String> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dns_learn` (bin "dns_learn" test) generated 5 warnings (run `cargo fix --bin "dns_learn" -p dns_learn --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/dns_learn-d9e7e8fc37e9b7b1)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test dns_packet::dns_header::test::is_bit_set_test ... ok
[INFO] [stdout] test dns_packet::packet_buffer::test::read_u8 ... ok
[INFO] [stdout] test dns_packet::dns_header::test::chapter_example ... ok
[INFO] [stdout] test dns_packet::packet_buffer::test::read_u16 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684", kill_on_drop: false }`
[INFO] [stdout] 5b41a30f1b2fdd9bfa2848d6471039e42e474d7fd52153f0abea54681ee04684
