Nov 28 08:36:31.901 INFO checking blechschmidt/masswhois against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 08:36:31.902 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 08:36:32.127 INFO [stdout] 855376a9e40e016216c19a55270f4bdf22c2662262fe14e2edf1255292eb0d1e
Nov 28 08:36:32.129 INFO running `"docker" "start" "-a" "855376a9e40e016216c19a55270f4bdf22c2662262fe14e2edf1255292eb0d1e"`
Nov 28 08:36:33.461 INFO [stderr] usermod: no changes
Nov 28 08:36:33.673 INFO [stderr]    Compiling openssl v0.9.13
Nov 28 08:36:33.676 INFO [stderr]    Compiling proc-macro-hack-impl v0.3.3
Nov 28 08:36:33.677 INFO [stderr]    Compiling unindent v0.1.2
Nov 28 08:36:33.677 INFO [stderr]    Compiling trust-dns v0.10.2
Nov 28 08:36:33.677 INFO [stderr]     Checking netbuf v0.4.0
Nov 28 08:36:33.684 INFO [stderr]    Compiling backtrace-sys v0.1.11
Nov 28 08:36:33.684 INFO [stderr]     Checking net2 v0.2.29
Nov 28 08:36:33.684 INFO [stderr]     Checking bytes v0.4.4
Nov 28 08:36:37.160 INFO [stderr]     Checking chrono v0.2.25
Nov 28 08:36:37.185 INFO [stderr]     Checking env_logger v0.4.3
Nov 28 08:36:37.683 INFO [stderr]     Checking mio v0.6.8
Nov 28 08:36:39.380 INFO [stderr]     Checking tokio-io v0.1.2
Nov 28 08:36:42.720 INFO [stderr]     Checking tokio-core v0.1.7
Nov 28 08:36:43.239 INFO [stderr]    Compiling proc-macro-hack v0.3.3
Nov 28 08:36:45.536 INFO [stderr]     Checking tokio-openssl v0.1.2
Nov 28 08:36:48.405 INFO [stderr]    Compiling indoc-impl v0.2.1
Nov 28 08:36:55.527 INFO [stderr]     Checking indoc v0.2.1
Nov 28 08:36:59.871 INFO [stderr]     Checking backtrace v0.2.3
Nov 28 08:37:00.392 INFO [stderr]     Checking error-chain v0.1.12
Nov 28 08:37:06.097 INFO [stderr]     Checking masswhois v0.1.0 (/source)
Nov 28 08:37:11.199 INFO [stderr] warning: unnecessary parentheses around method argument
Nov 28 08:37:11.200 INFO [stderr]    --> src/dnsutils/mod.rs:486:25
Nov 28 08:37:11.201 INFO [stderr]     |
Nov 28 08:37:11.201 INFO [stderr] 486 |         self.expiry.add((ExpiryRef::Positive(keyref, index)), ttl);
Nov 28 08:37:11.201 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 08:37:11.202 INFO [stderr]     |
Nov 28 08:37:11.202 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Nov 28 08:37:11.203 INFO [stderr] 
Nov 28 08:37:11.533 INFO [stderr] warning: unnecessary parentheses around method argument
Nov 28 08:37:11.533 INFO [stderr]    --> src/dnsutils/mod.rs:486:25
Nov 28 08:37:11.533 INFO [stderr]     |
Nov 28 08:37:11.533 INFO [stderr] 486 |         self.expiry.add((ExpiryRef::Positive(keyref, index)), ttl);
Nov 28 08:37:11.534 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 08:37:11.534 INFO [stderr]     |
Nov 28 08:37:11.534 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Nov 28 08:37:11.534 INFO [stderr] 
Nov 28 08:37:11.577 INFO [stderr] warning: value assigned to `nocache` is never read
Nov 28 08:37:11.577 INFO [stderr]    --> src/dnsutils/mod.rs:341:17
Nov 28 08:37:11.577 INFO [stderr]     |
Nov 28 08:37:11.578 INFO [stderr] 341 |         let mut nocache = false;
Nov 28 08:37:11.578 INFO [stderr]     |                 ^^^^^^^
Nov 28 08:37:11.578 INFO [stderr]     |
Nov 28 08:37:11.579 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Nov 28 08:37:11.579 INFO [stderr] 
Nov 28 08:37:11.579 INFO [stderr] warning: unused variable: `expiry`
Nov 28 08:37:11.580 INFO [stderr]    --> src/dnsutils/mod.rs:462:13
Nov 28 08:37:11.580 INFO [stderr]     |
Nov 28 08:37:11.580 INFO [stderr] 462 |         let expiry = SystemTime::now() + ttl;
Nov 28 08:37:11.581 INFO [stderr]     |             ^^^^^^ help: consider using `_expiry` instead
Nov 28 08:37:11.581 INFO [stderr]     |
Nov 28 08:37:11.581 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 08:37:11.581 INFO [stderr] 
Nov 28 08:37:11.661 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:11.661 INFO [stderr]    --> src/dnsutils/mod.rs:161:19
Nov 28 08:37:11.662 INFO [stderr]     |
Nov 28 08:37:11.662 INFO [stderr] 161 |     fn send_query(mut bufvec: &mut Vec<u8>, qname: &String, qtype: RecordType, sock: &mut UdpSocket, to: &SocketAddr, id: u16) {
Nov 28 08:37:11.662 INFO [stderr]     |                   ----^^^^^^
Nov 28 08:37:11.662 INFO [stderr]     |                   |
Nov 28 08:37:11.663 INFO [stderr]     |                   help: remove this `mut`
Nov 28 08:37:11.663 INFO [stderr]     |
Nov 28 08:37:11.663 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 08:37:11.664 INFO [stderr] 
Nov 28 08:37:11.677 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:11.677 INFO [stderr]    --> src/dnsutils/mod.rs:203:13
Nov 28 08:37:11.677 INFO [stderr]     |
Nov 28 08:37:11.677 INFO [stderr] 203 |         let mut recv;
Nov 28 08:37:11.678 INFO [stderr]     |             ----^^^^
Nov 28 08:37:11.678 INFO [stderr]     |             |
Nov 28 08:37:11.678 INFO [stderr]     |             help: remove this `mut`
Nov 28 08:37:11.679 INFO [stderr] 
Nov 28 08:37:11.679 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:11.679 INFO [stderr]    --> src/dnsutils/mod.rs:316:17
Nov 28 08:37:11.679 INFO [stderr]     |
Nov 28 08:37:11.680 INFO [stderr] 316 |             let mut res = self.resolving.get_mut(&(qname.clone(), qtype));
Nov 28 08:37:11.680 INFO [stderr]     |                 ----^^^
Nov 28 08:37:11.680 INFO [stderr]     |                 |
Nov 28 08:37:11.680 INFO [stderr]     |                 help: remove this `mut`
Nov 28 08:37:11.681 INFO [stderr] 
Nov 28 08:37:11.681 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:11.681 INFO [stderr]    --> src/dnsutils/mod.rs:344:17
Nov 28 08:37:11.681 INFO [stderr]     |
Nov 28 08:37:11.682 INFO [stderr] 344 |             let mut preferred_cache = preferred_cache.unwrap();
Nov 28 08:37:11.682 INFO [stderr]     |                 ----^^^^^^^^^^^^^^^
Nov 28 08:37:11.682 INFO [stderr]     |                 |
Nov 28 08:37:11.682 INFO [stderr]     |                 help: remove this `mut`
Nov 28 08:37:11.683 INFO [stderr] 
Nov 28 08:37:11.688 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:11.689 INFO [stderr]    --> src/dnsutils/mod.rs:434:25
Nov 28 08:37:11.689 INFO [stderr]     |
Nov 28 08:37:11.689 INFO [stderr] 434 |                     let mut records = rec.unwrap();
Nov 28 08:37:11.690 INFO [stderr]     |                         ----^^^^^^^
Nov 28 08:37:11.690 INFO [stderr]     |                         |
Nov 28 08:37:11.690 INFO [stderr]     |                         help: remove this `mut`
Nov 28 08:37:11.690 INFO [stderr] 
Nov 28 08:37:11.691 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:11.691 INFO [stderr]    --> src/dnsutils/mod.rs:494:21
Nov 28 08:37:11.691 INFO [stderr]     |
Nov 28 08:37:11.691 INFO [stderr] 494 |                 let mut record = result.unwrap();
Nov 28 08:37:11.692 INFO [stderr]     |                     ----^^^^^^
Nov 28 08:37:11.692 INFO [stderr]     |                     |
Nov 28 08:37:11.692 INFO [stderr]     |                     help: remove this `mut`
Nov 28 08:37:11.692 INFO [stderr] 
Nov 28 08:37:11.709 INFO [stderr] warning: field is never used: `encoding`
Nov 28 08:37:11.709 INFO [stderr]   --> src/dnsutils/mod.rs:85:5
Nov 28 08:37:11.709 INFO [stderr]    |
Nov 28 08:37:11.709 INFO [stderr] 85 |     encoding: HashMap<String, &'a String>, // 0x20 encoding
Nov 28 08:37:11.710 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:11.710 INFO [stderr]    |
Nov 28 08:37:11.710 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 08:37:11.711 INFO [stderr] 
Nov 28 08:37:11.711 INFO [stderr] warning: field is never used: `resolve_parallel`
Nov 28 08:37:11.711 INFO [stderr]   --> src/dnsutils/mod.rs:91:5
Nov 28 08:37:11.711 INFO [stderr]    |
Nov 28 08:37:11.711 INFO [stderr] 91 |     resolve_parallel: bool,
Nov 28 08:37:11.712 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:11.712 INFO [stderr] 
Nov 28 08:37:11.712 INFO [stderr] warning: field is never used: `round_robin`
Nov 28 08:37:11.713 INFO [stderr]   --> src/dnsutils/mod.rs:94:5
Nov 28 08:37:11.713 INFO [stderr]    |
Nov 28 08:37:11.713 INFO [stderr] 94 |     round_robin: RoundRobin,
Nov 28 08:37:11.713 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:11.714 INFO [stderr] 
Nov 28 08:37:11.714 INFO [stderr] warning: field is never used: `round_robin_index`
Nov 28 08:37:11.714 INFO [stderr]   --> src/dnsutils/mod.rs:95:5
Nov 28 08:37:11.714 INFO [stderr]    |
Nov 28 08:37:11.714 INFO [stderr] 95 |     round_robin_index: usize,
Nov 28 08:37:11.715 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:11.715 INFO [stderr] 
Nov 28 08:37:11.715 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:37:11.716 INFO [stderr]    --> src/dnsutils/mod.rs:164:9
Nov 28 08:37:11.716 INFO [stderr]     |
Nov 28 08:37:11.716 INFO [stderr] 164 |         sock.send_to(msg.to_vec().unwrap().as_slice(), to);
Nov 28 08:37:11.716 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:11.717 INFO [stderr]     |
Nov 28 08:37:11.717 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 08:37:11.717 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:37:11.717 INFO [stderr] 
Nov 28 08:37:11.717 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:37:11.718 INFO [stderr]    --> src/dnsutils/mod.rs:192:13
Nov 28 08:37:11.718 INFO [stderr]     |
Nov 28 08:37:11.718 INFO [stderr] 192 |             poll.register(self.socket4.as_mut().unwrap(), Token(start_token + added), Ready::readable(), PollOpt::edge());
Nov 28 08:37:11.718 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:11.719 INFO [stderr]     |
Nov 28 08:37:11.719 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:37:11.719 INFO [stderr] 
Nov 28 08:37:11.719 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:37:11.720 INFO [stderr]    --> src/dnsutils/mod.rs:196:13
Nov 28 08:37:11.720 INFO [stderr]     |
Nov 28 08:37:11.720 INFO [stderr] 196 |             poll.register(self.socket6.as_mut().unwrap(), Token(start_token + added), Ready::readable(), PollOpt::edge());
Nov 28 08:37:11.720 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:11.721 INFO [stderr]     |
Nov 28 08:37:11.721 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:37:11.721 INFO [stderr] 
Nov 28 08:37:11.896 INFO [stderr] warning: value assigned to `nocache` is never read
Nov 28 08:37:11.896 INFO [stderr]    --> src/dnsutils/mod.rs:341:17
Nov 28 08:37:11.896 INFO [stderr]     |
Nov 28 08:37:11.896 INFO [stderr] 341 |         let mut nocache = false;
Nov 28 08:37:11.896 INFO [stderr]     |                 ^^^^^^^
Nov 28 08:37:11.896 INFO [stderr]     |
Nov 28 08:37:11.896 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Nov 28 08:37:11.896 INFO [stderr] 
Nov 28 08:37:11.896 INFO [stderr] warning: unused variable: `expiry`
Nov 28 08:37:11.896 INFO [stderr]    --> src/dnsutils/mod.rs:462:13
Nov 28 08:37:11.896 INFO [stderr]     |
Nov 28 08:37:11.896 INFO [stderr] 462 |         let expiry = SystemTime::now() + ttl;
Nov 28 08:37:11.896 INFO [stderr]     |             ^^^^^^ help: consider using `_expiry` instead
Nov 28 08:37:11.896 INFO [stderr]     |
Nov 28 08:37:11.896 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 08:37:11.896 INFO [stderr] 
Nov 28 08:37:12.012 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:12.012 INFO [stderr]    --> src/dnsutils/mod.rs:161:19
Nov 28 08:37:12.012 INFO [stderr]     |
Nov 28 08:37:12.012 INFO [stderr] 161 |     fn send_query(mut bufvec: &mut Vec<u8>, qname: &String, qtype: RecordType, sock: &mut UdpSocket, to: &SocketAddr, id: u16) {
Nov 28 08:37:12.012 INFO [stderr]     |                   ----^^^^^^
Nov 28 08:37:12.012 INFO [stderr]     |                   |
Nov 28 08:37:12.012 INFO [stderr]     |                   help: remove this `mut`
Nov 28 08:37:12.012 INFO [stderr]     |
Nov 28 08:37:12.012 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 08:37:12.012 INFO [stderr] 
Nov 28 08:37:12.032 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:12.032 INFO [stderr]    --> src/dnsutils/mod.rs:203:13
Nov 28 08:37:12.032 INFO [stderr]     |
Nov 28 08:37:12.032 INFO [stderr] 203 |         let mut recv;
Nov 28 08:37:12.032 INFO [stderr]     |             ----^^^^
Nov 28 08:37:12.032 INFO [stderr]     |             |
Nov 28 08:37:12.032 INFO [stderr]     |             help: remove this `mut`
Nov 28 08:37:12.032 INFO [stderr] 
Nov 28 08:37:12.034 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:12.034 INFO [stderr]    --> src/dnsutils/mod.rs:316:17
Nov 28 08:37:12.034 INFO [stderr]     |
Nov 28 08:37:12.034 INFO [stderr] 316 |             let mut res = self.resolving.get_mut(&(qname.clone(), qtype));
Nov 28 08:37:12.034 INFO [stderr]     |                 ----^^^
Nov 28 08:37:12.034 INFO [stderr]     |                 |
Nov 28 08:37:12.034 INFO [stderr]     |                 help: remove this `mut`
Nov 28 08:37:12.034 INFO [stderr] 
Nov 28 08:37:12.040 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:12.040 INFO [stderr]    --> src/dnsutils/mod.rs:344:17
Nov 28 08:37:12.040 INFO [stderr]     |
Nov 28 08:37:12.040 INFO [stderr] 344 |             let mut preferred_cache = preferred_cache.unwrap();
Nov 28 08:37:12.040 INFO [stderr]     |                 ----^^^^^^^^^^^^^^^
Nov 28 08:37:12.040 INFO [stderr]     |                 |
Nov 28 08:37:12.040 INFO [stderr]     |                 help: remove this `mut`
Nov 28 08:37:12.040 INFO [stderr] 
Nov 28 08:37:12.044 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:12.044 INFO [stderr]    --> src/dnsutils/mod.rs:434:25
Nov 28 08:37:12.044 INFO [stderr]     |
Nov 28 08:37:12.044 INFO [stderr] 434 |                     let mut records = rec.unwrap();
Nov 28 08:37:12.044 INFO [stderr]     |                         ----^^^^^^^
Nov 28 08:37:12.044 INFO [stderr]     |                         |
Nov 28 08:37:12.044 INFO [stderr]     |                         help: remove this `mut`
Nov 28 08:37:12.044 INFO [stderr] 
Nov 28 08:37:12.048 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:37:12.048 INFO [stderr]    --> src/dnsutils/mod.rs:494:21
Nov 28 08:37:12.048 INFO [stderr]     |
Nov 28 08:37:12.048 INFO [stderr] 494 |                 let mut record = result.unwrap();
Nov 28 08:37:12.048 INFO [stderr]     |                     ----^^^^^^
Nov 28 08:37:12.048 INFO [stderr]     |                     |
Nov 28 08:37:12.048 INFO [stderr]     |                     help: remove this `mut`
Nov 28 08:37:12.048 INFO [stderr] 
Nov 28 08:37:12.064 INFO [stderr] warning: field is never used: `encoding`
Nov 28 08:37:12.064 INFO [stderr]   --> src/dnsutils/mod.rs:85:5
Nov 28 08:37:12.064 INFO [stderr]    |
Nov 28 08:37:12.064 INFO [stderr] 85 |     encoding: HashMap<String, &'a String>, // 0x20 encoding
Nov 28 08:37:12.064 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:12.064 INFO [stderr]    |
Nov 28 08:37:12.064 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 08:37:12.064 INFO [stderr] 
Nov 28 08:37:12.064 INFO [stderr] warning: field is never used: `resolve_parallel`
Nov 28 08:37:12.064 INFO [stderr]   --> src/dnsutils/mod.rs:91:5
Nov 28 08:37:12.064 INFO [stderr]    |
Nov 28 08:37:12.064 INFO [stderr] 91 |     resolve_parallel: bool,
Nov 28 08:37:12.064 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:12.064 INFO [stderr] 
Nov 28 08:37:12.064 INFO [stderr] warning: field is never used: `round_robin`
Nov 28 08:37:12.064 INFO [stderr]   --> src/dnsutils/mod.rs:94:5
Nov 28 08:37:12.064 INFO [stderr]    |
Nov 28 08:37:12.064 INFO [stderr] 94 |     round_robin: RoundRobin,
Nov 28 08:37:12.064 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:12.064 INFO [stderr] 
Nov 28 08:37:12.065 INFO [stderr] warning: field is never used: `round_robin_index`
Nov 28 08:37:12.065 INFO [stderr]   --> src/dnsutils/mod.rs:95:5
Nov 28 08:37:12.065 INFO [stderr]    |
Nov 28 08:37:12.065 INFO [stderr] 95 |     round_robin_index: usize,
Nov 28 08:37:12.065 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:12.065 INFO [stderr] 
Nov 28 08:37:12.072 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:37:12.072 INFO [stderr]    --> src/dnsutils/mod.rs:164:9
Nov 28 08:37:12.072 INFO [stderr]     |
Nov 28 08:37:12.072 INFO [stderr] 164 |         sock.send_to(msg.to_vec().unwrap().as_slice(), to);
Nov 28 08:37:12.072 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:12.072 INFO [stderr]     |
Nov 28 08:37:12.072 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 08:37:12.072 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:37:12.072 INFO [stderr] 
Nov 28 08:37:12.072 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:37:12.072 INFO [stderr]    --> src/dnsutils/mod.rs:192:13
Nov 28 08:37:12.072 INFO [stderr]     |
Nov 28 08:37:12.072 INFO [stderr] 192 |             poll.register(self.socket4.as_mut().unwrap(), Token(start_token + added), Ready::readable(), PollOpt::edge());
Nov 28 08:37:12.072 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:12.072 INFO [stderr]     |
Nov 28 08:37:12.072 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:37:12.072 INFO [stderr] 
Nov 28 08:37:12.072 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:37:12.072 INFO [stderr]    --> src/dnsutils/mod.rs:196:13
Nov 28 08:37:12.072 INFO [stderr]     |
Nov 28 08:37:12.072 INFO [stderr] 196 |             poll.register(self.socket6.as_mut().unwrap(), Token(start_token + added), Ready::readable(), PollOpt::edge());
Nov 28 08:37:12.072 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 08:37:12.072 INFO [stderr]     |
Nov 28 08:37:12.072 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:37:12.072 INFO [stderr] 
Nov 28 08:37:12.096 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.60s
Nov 28 08:37:12.108 INFO [stderr] su: No module specific data is present
Nov 28 08:37:12.920 INFO running `"docker" "inspect" "855376a9e40e016216c19a55270f4bdf22c2662262fe14e2edf1255292eb0d1e"`
Nov 28 08:37:13.297 INFO running `"docker" "rm" "-f" "855376a9e40e016216c19a55270f4bdf22c2662262fe14e2edf1255292eb0d1e"`
Nov 28 08:37:13.540 INFO [stdout] 855376a9e40e016216c19a55270f4bdf22c2662262fe14e2edf1255292eb0d1e