Dec 17 10:57:18.520 INFO checking zgotsch/rs-blockchain against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 10:57:18.520 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/zgotsch/rs-blockchain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 10:57:18.934 INFO [stdout] 5d4dc2adac592a6c74521b4fd75990aed7f03504705f782dc6d86de6c8c525c2
Dec 17 10:57:18.938 INFO running `"docker" "start" "-a" "5d4dc2adac592a6c74521b4fd75990aed7f03504705f782dc6d86de6c8c525c2"`
Dec 17 10:57:21.080 INFO [stderr]    Compiling unicode-xid v0.0.4
Dec 17 10:57:21.080 INFO [stderr]    Compiling quote v0.3.15
Dec 17 10:57:21.080 INFO [stderr]    Compiling gcc v0.3.50
Dec 17 10:57:21.080 INFO [stderr]     Checking libc v0.2.23
Dec 17 10:57:21.080 INFO [stderr]     Checking num-traits v0.1.37
Dec 17 10:57:21.080 INFO [stderr]     Checking byteorder v1.0.0
Dec 17 10:57:21.088 INFO [stderr]     Checking serde v1.0.8
Dec 17 10:57:22.236 INFO [stderr]    Compiling synom v0.11.3
Dec 17 10:57:22.528 INFO [stderr]     Checking base64 v0.5.2
Dec 17 10:57:24.068 INFO [stderr]     Checking time v0.1.37
Dec 17 10:57:24.068 INFO [stderr]     Checking rand v0.3.15
Dec 17 10:57:25.328 INFO [stderr]    Compiling syn v0.11.11
Dec 17 10:57:28.436 INFO [stderr]    Compiling rust-crypto v0.2.36
Dec 17 10:57:34.893 INFO [stderr]    Compiling serde_derive_internals v0.15.1
Dec 17 10:57:38.680 INFO [stderr]    Compiling serde_derive v1.0.8
Dec 17 10:57:40.998 INFO [stderr]     Checking bincode v0.8.0
Dec 17 10:57:45.864 INFO [stderr]     Checking naivechain-rs v0.1.0 (/opt/crater/workdir)
Dec 17 10:57:46.732 INFO [stderr] warning: variable does not need to be mutable
Dec 17 10:57:46.733 INFO [stderr]    --> src/block.rs:120:9
Dec 17 10:57:46.733 INFO [stderr]     |
Dec 17 10:57:46.734 INFO [stderr] 120 |     let mut buf = &mut [0; 8];
Dec 17 10:57:46.734 INFO [stderr]     |         ----^^^
Dec 17 10:57:46.734 INFO [stderr]     |         |
Dec 17 10:57:46.735 INFO [stderr]     |         help: remove this `mut`
Dec 17 10:57:46.735 INFO [stderr]     |
Dec 17 10:57:46.735 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 10:57:46.735 INFO [stderr] 
Dec 17 10:57:46.735 INFO [stderr] warning: field is never used: `next_message_size`
Dec 17 10:57:46.735 INFO [stderr]   --> src/connection.rs:11:5
Dec 17 10:57:46.735 INFO [stderr]    |
Dec 17 10:57:46.735 INFO [stderr] 11 |     next_message_size: Option<u64>,
Dec 17 10:57:46.740 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:46.740 INFO [stderr]    |
Dec 17 10:57:46.740 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 10:57:46.740 INFO [stderr] 
Dec 17 10:57:47.015 INFO [stderr] warning: variable does not need to be mutable
Dec 17 10:57:47.015 INFO [stderr]    --> src/block.rs:120:9
Dec 17 10:57:47.015 INFO [stderr]     |
Dec 17 10:57:47.015 INFO [stderr] 120 |     let mut buf = &mut [0; 8];
Dec 17 10:57:47.015 INFO [stderr]     |         ----^^^
Dec 17 10:57:47.015 INFO [stderr]     |         |
Dec 17 10:57:47.015 INFO [stderr]     |         help: remove this `mut`
Dec 17 10:57:47.015 INFO [stderr]     |
Dec 17 10:57:47.015 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 10:57:47.015 INFO [stderr] 
Dec 17 10:57:47.020 INFO [stderr] warning: field is never used: `next_message_size`
Dec 17 10:57:47.020 INFO [stderr]   --> src/connection.rs:11:5
Dec 17 10:57:47.020 INFO [stderr]    |
Dec 17 10:57:47.020 INFO [stderr] 11 |     next_message_size: Option<u64>,
Dec 17 10:57:47.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.020 INFO [stderr]    |
Dec 17 10:57:47.020 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 10:57:47.020 INFO [stderr] 
Dec 17 10:57:47.367 INFO [stderr] warning: unused import: `TcpStream`
Dec 17 10:57:47.367 INFO [stderr]  --> src/bin/nameserver.rs:1:29
Dec 17 10:57:47.367 INFO [stderr]   |
Dec 17 10:57:47.367 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream, SocketAddr};
Dec 17 10:57:47.367 INFO [stderr]   |                             ^^^^^^^^^
Dec 17 10:57:47.380 INFO [stderr]   |
Dec 17 10:57:47.380 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 10:57:47.380 INFO [stderr] 
Dec 17 10:57:47.380 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Dec 17 10:57:47.380 INFO [stderr]  --> src/bin/nameserver.rs:7:5
Dec 17 10:57:47.380 INFO [stderr]   |
Dec 17 10:57:47.380 INFO [stderr] 7 | use std::net::ToSocketAddrs;
Dec 17 10:57:47.380 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.380 INFO [stderr] 
Dec 17 10:57:47.380 INFO [stderr] warning: unused import: `ClientMessage`
Dec 17 10:57:47.380 INFO [stderr]   --> src/bin/nameserver.rs:12:30
Dec 17 10:57:47.380 INFO [stderr]    |
Dec 17 10:57:47.380 INFO [stderr] 12 | use naivechain_rs::message::{ClientMessage, ClientToNameserverMessage, NameserverToClientMessage};
Dec 17 10:57:47.380 INFO [stderr]    |                              ^^^^^^^^^^^^^
Dec 17 10:57:47.380 INFO [stderr] 
Dec 17 10:57:47.404 INFO [stderr] warning: unused import: `TcpStream`
Dec 17 10:57:47.404 INFO [stderr]  --> src/bin/nameserver.rs:1:29
Dec 17 10:57:47.404 INFO [stderr]   |
Dec 17 10:57:47.404 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream, SocketAddr};
Dec 17 10:57:47.404 INFO [stderr]   |                             ^^^^^^^^^
Dec 17 10:57:47.404 INFO [stderr]   |
Dec 17 10:57:47.404 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 10:57:47.404 INFO [stderr] 
Dec 17 10:57:47.404 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Dec 17 10:57:47.404 INFO [stderr]  --> src/bin/nameserver.rs:7:5
Dec 17 10:57:47.404 INFO [stderr]   |
Dec 17 10:57:47.404 INFO [stderr] 7 | use std::net::ToSocketAddrs;
Dec 17 10:57:47.404 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.404 INFO [stderr] 
Dec 17 10:57:47.404 INFO [stderr] warning: unused import: `ClientMessage`
Dec 17 10:57:47.404 INFO [stderr]   --> src/bin/nameserver.rs:12:30
Dec 17 10:57:47.404 INFO [stderr]    |
Dec 17 10:57:47.404 INFO [stderr] 12 | use naivechain_rs::message::{ClientMessage, ClientToNameserverMessage, NameserverToClientMessage};
Dec 17 10:57:47.404 INFO [stderr]    |                              ^^^^^^^^^^^^^
Dec 17 10:57:47.404 INFO [stderr] 
Dec 17 10:57:47.415 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 10:57:47.415 INFO [stderr]  --> src/bin/main.rs:3:1
Dec 17 10:57:47.415 INFO [stderr]   |
Dec 17 10:57:47.415 INFO [stderr] 3 | #[macro_use]
Dec 17 10:57:47.415 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 10:57:47.415 INFO [stderr]   |
Dec 17 10:57:47.415 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 10:57:47.415 INFO [stderr] 
Dec 17 10:57:47.415 INFO [stderr] warning: unused import: `std::error::Error`
Dec 17 10:57:47.415 INFO [stderr]   --> src/bin/main.rs:13:5
Dec 17 10:57:47.415 INFO [stderr]    |
Dec 17 10:57:47.415 INFO [stderr] 13 | use std::error::Error;
Dec 17 10:57:47.415 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.416 INFO [stderr] 
Dec 17 10:57:47.416 INFO [stderr] warning: unused import: `std::fs::File`
Dec 17 10:57:47.416 INFO [stderr]   --> src/bin/main.rs:14:5
Dec 17 10:57:47.416 INFO [stderr]    |
Dec 17 10:57:47.416 INFO [stderr] 14 | use std::fs::File;
Dec 17 10:57:47.416 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 17 10:57:47.416 INFO [stderr] 
Dec 17 10:57:47.416 INFO [stderr] warning: unused import: `std::path::Path`
Dec 17 10:57:47.416 INFO [stderr]   --> src/bin/main.rs:15:5
Dec 17 10:57:47.416 INFO [stderr]    |
Dec 17 10:57:47.416 INFO [stderr] 15 | use std::path::Path;
Dec 17 10:57:47.416 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 10:57:47.416 INFO [stderr] 
Dec 17 10:57:47.416 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Dec 17 10:57:47.416 INFO [stderr]   --> src/bin/main.rs:18:5
Dec 17 10:57:47.416 INFO [stderr]    |
Dec 17 10:57:47.416 INFO [stderr] 18 | use std::net::ToSocketAddrs;
Dec 17 10:57:47.416 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.416 INFO [stderr] 
Dec 17 10:57:47.416 INFO [stderr] warning: unused imports: `Infinite`, `serialize`
Dec 17 10:57:47.416 INFO [stderr]   --> src/bin/main.rs:24:15
Dec 17 10:57:47.416 INFO [stderr]    |
Dec 17 10:57:47.416 INFO [stderr] 24 | use bincode::{serialize, deserialize, Infinite};
Dec 17 10:57:47.416 INFO [stderr]    |               ^^^^^^^^^               ^^^^^^^^
Dec 17 10:57:47.416 INFO [stderr] 
Dec 17 10:57:47.423 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 10:57:47.423 INFO [stderr]  --> src/bin/main.rs:3:1
Dec 17 10:57:47.423 INFO [stderr]   |
Dec 17 10:57:47.423 INFO [stderr] 3 | #[macro_use]
Dec 17 10:57:47.423 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 10:57:47.444 INFO [stderr]   |
Dec 17 10:57:47.444 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 10:57:47.444 INFO [stderr] 
Dec 17 10:57:47.444 INFO [stderr] warning: unused import: `std::error::Error`
Dec 17 10:57:47.444 INFO [stderr]   --> src/bin/main.rs:13:5
Dec 17 10:57:47.444 INFO [stderr]    |
Dec 17 10:57:47.444 INFO [stderr] 13 | use std::error::Error;
Dec 17 10:57:47.444 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.444 INFO [stderr] 
Dec 17 10:57:47.444 INFO [stderr] warning: unused import: `std::fs::File`
Dec 17 10:57:47.444 INFO [stderr]   --> src/bin/main.rs:14:5
Dec 17 10:57:47.444 INFO [stderr]    |
Dec 17 10:57:47.444 INFO [stderr] 14 | use std::fs::File;
Dec 17 10:57:47.444 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 17 10:57:47.444 INFO [stderr] 
Dec 17 10:57:47.444 INFO [stderr] warning: unused import: `std::path::Path`
Dec 17 10:57:47.444 INFO [stderr]   --> src/bin/main.rs:15:5
Dec 17 10:57:47.444 INFO [stderr]    |
Dec 17 10:57:47.444 INFO [stderr] 15 | use std::path::Path;
Dec 17 10:57:47.444 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 10:57:47.444 INFO [stderr] 
Dec 17 10:57:47.444 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Dec 17 10:57:47.444 INFO [stderr]   --> src/bin/main.rs:18:5
Dec 17 10:57:47.444 INFO [stderr]    |
Dec 17 10:57:47.444 INFO [stderr] 18 | use std::net::ToSocketAddrs;
Dec 17 10:57:47.444 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.444 INFO [stderr] 
Dec 17 10:57:47.444 INFO [stderr] warning: unused imports: `Infinite`, `serialize`
Dec 17 10:57:47.444 INFO [stderr]   --> src/bin/main.rs:24:15
Dec 17 10:57:47.444 INFO [stderr]    |
Dec 17 10:57:47.444 INFO [stderr] 24 | use bincode::{serialize, deserialize, Infinite};
Dec 17 10:57:47.444 INFO [stderr]    |               ^^^^^^^^^               ^^^^^^^^
Dec 17 10:57:47.444 INFO [stderr] 
Dec 17 10:57:47.576 INFO [stderr] warning: unused import: `std::io::Read`
Dec 17 10:57:47.576 INFO [stderr]  --> src/bin/nameserver.rs:3:5
Dec 17 10:57:47.576 INFO [stderr]   |
Dec 17 10:57:47.576 INFO [stderr] 3 | use std::io::Read;
Dec 17 10:57:47.576 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 10:57:47.576 INFO [stderr] 
Dec 17 10:57:47.616 INFO [stderr] warning: unused import: `std::io::Read`
Dec 17 10:57:47.616 INFO [stderr]  --> src/bin/nameserver.rs:3:5
Dec 17 10:57:47.616 INFO [stderr]   |
Dec 17 10:57:47.616 INFO [stderr] 3 | use std::io::Read;
Dec 17 10:57:47.616 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 10:57:47.616 INFO [stderr] 
Dec 17 10:57:47.788 INFO [stderr] warning: unreachable pattern
Dec 17 10:57:47.788 INFO [stderr]    --> src/bin/main.rs:315:21
Dec 17 10:57:47.788 INFO [stderr]     |
Dec 17 10:57:47.788 INFO [stderr] 315 |                     Ok(_) => {println!("Unhandled command");},
Dec 17 10:57:47.788 INFO [stderr]     |                     ^^^^^
Dec 17 10:57:47.796 INFO [stderr]     |
Dec 17 10:57:47.796 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 17 10:57:47.796 INFO [stderr] 
Dec 17 10:57:47.804 INFO [stderr] warning: unreachable pattern
Dec 17 10:57:47.804 INFO [stderr]    --> src/bin/main.rs:315:21
Dec 17 10:57:47.804 INFO [stderr]     |
Dec 17 10:57:47.804 INFO [stderr] 315 |                     Ok(_) => {println!("Unhandled command");},
Dec 17 10:57:47.804 INFO [stderr]     |                     ^^^^^
Dec 17 10:57:47.804 INFO [stderr]     |
Dec 17 10:57:47.804 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 17 10:57:47.804 INFO [stderr] 
Dec 17 10:57:47.875 INFO [stderr] warning: variable does not need to be mutable
Dec 17 10:57:47.875 INFO [stderr]    --> src/bin/main.rs:188:9
Dec 17 10:57:47.875 INFO [stderr]     |
Dec 17 10:57:47.875 INFO [stderr] 188 |     let mut nameserver_stream = TcpStream::connect(nameserver_str).expect("Couldn't connet to nameserver");
Dec 17 10:57:47.875 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.875 INFO [stderr]     |         |
Dec 17 10:57:47.875 INFO [stderr]     |         help: remove this `mut`
Dec 17 10:57:47.880 INFO [stderr]     |
Dec 17 10:57:47.880 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 10:57:47.880 INFO [stderr] 
Dec 17 10:57:47.880 INFO [stderr] warning: variable does not need to be mutable
Dec 17 10:57:47.880 INFO [stderr]    --> src/bin/main.rs:206:9
Dec 17 10:57:47.880 INFO [stderr]     |
Dec 17 10:57:47.880 INFO [stderr] 206 |     let mut peers: Arc<Mutex<Vec<Arc<Mutex<Connection>>>>> = Arc::new(Mutex::new(Vec::new()));
Dec 17 10:57:47.880 INFO [stderr]     |         ----^^^^^
Dec 17 10:57:47.880 INFO [stderr]     |         |
Dec 17 10:57:47.880 INFO [stderr]     |         help: remove this `mut`
Dec 17 10:57:47.880 INFO [stderr] 
Dec 17 10:57:47.882 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.882 INFO [stderr]   --> src/bin/main.rs:76:29
Dec 17 10:57:47.882 INFO [stderr]    |
Dec 17 10:57:47.882 INFO [stderr] 76 |                             connection.write_message(&ClientMessage::Chain(chain.clone()));
Dec 17 10:57:47.882 INFO [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.882 INFO [stderr]    |
Dec 17 10:57:47.882 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 10:57:47.882 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.882 INFO [stderr] 
Dec 17 10:57:47.882 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.882 INFO [stderr]   --> src/bin/main.rs:95:33
Dec 17 10:57:47.882 INFO [stderr]    |
Dec 17 10:57:47.882 INFO [stderr] 95 |                                 connection.write_message(&ClientMessage::QueryChain);
Dec 17 10:57:47.882 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.882 INFO [stderr]    |
Dec 17 10:57:47.882 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.882 INFO [stderr] 
Dec 17 10:57:47.882 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.882 INFO [stderr]    --> src/bin/main.rs:212:5
Dec 17 10:57:47.882 INFO [stderr]     |
Dec 17 10:57:47.882 INFO [stderr] 212 |     nameserver_connection.write_message(&ClientToNameserverMessage::Query);
Dec 17 10:57:47.882 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.884 INFO [stderr]     |
Dec 17 10:57:47.884 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.884 INFO [stderr] 
Dec 17 10:57:47.886 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.886 INFO [stderr]    --> src/bin/main.rs:268:5
Dec 17 10:57:47.886 INFO [stderr]     |
Dec 17 10:57:47.886 INFO [stderr] 268 |     nameserver_connection.write_message(&ClientToNameserverMessage::Inform(my_addr.port()));
Dec 17 10:57:47.886 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.886 INFO [stderr]     |
Dec 17 10:57:47.886 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.886 INFO [stderr] 
Dec 17 10:57:47.886 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.886 INFO [stderr]    --> src/bin/main.rs:291:33
Dec 17 10:57:47.886 INFO [stderr]     |
Dec 17 10:57:47.886 INFO [stderr] 291 |                                 peer.write_message(&ClientMessage::NewBlock(new_block.clone()));
Dec 17 10:57:47.886 INFO [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.886 INFO [stderr]     |
Dec 17 10:57:47.886 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.886 INFO [stderr] 
Dec 17 10:57:47.886 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.886 INFO [stderr]    --> src/bin/main.rs:357:5
Dec 17 10:57:47.886 INFO [stderr]     |
Dec 17 10:57:47.886 INFO [stderr] 357 |     repl_thread.join();
Dec 17 10:57:47.886 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.886 INFO [stderr]     |
Dec 17 10:57:47.886 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.886 INFO [stderr] 
Dec 17 10:57:47.886 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.886 INFO [stderr]    --> src/bin/main.rs:358:5
Dec 17 10:57:47.886 INFO [stderr]     |
Dec 17 10:57:47.886 INFO [stderr] 358 |     listener_thread.join();
Dec 17 10:57:47.886 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.886 INFO [stderr]     |
Dec 17 10:57:47.886 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.886 INFO [stderr] 
Dec 17 10:57:47.891 INFO [stderr] warning: variable does not need to be mutable
Dec 17 10:57:47.891 INFO [stderr]    --> src/bin/main.rs:188:9
Dec 17 10:57:47.891 INFO [stderr]     |
Dec 17 10:57:47.891 INFO [stderr] 188 |     let mut nameserver_stream = TcpStream::connect(nameserver_str).expect("Couldn't connet to nameserver");
Dec 17 10:57:47.891 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.891 INFO [stderr]     |         |
Dec 17 10:57:47.891 INFO [stderr]     |         help: remove this `mut`
Dec 17 10:57:47.891 INFO [stderr]     |
Dec 17 10:57:47.892 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 17 10:57:47.892 INFO [stderr] 
Dec 17 10:57:47.892 INFO [stderr] warning: variable does not need to be mutable
Dec 17 10:57:47.892 INFO [stderr]    --> src/bin/main.rs:206:9
Dec 17 10:57:47.892 INFO [stderr]     |
Dec 17 10:57:47.892 INFO [stderr] 206 |     let mut peers: Arc<Mutex<Vec<Arc<Mutex<Connection>>>>> = Arc::new(Mutex::new(Vec::new()));
Dec 17 10:57:47.892 INFO [stderr]     |         ----^^^^^
Dec 17 10:57:47.892 INFO [stderr]     |         |
Dec 17 10:57:47.892 INFO [stderr]     |         help: remove this `mut`
Dec 17 10:57:47.892 INFO [stderr] 
Dec 17 10:57:47.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.892 INFO [stderr]   --> src/bin/main.rs:76:29
Dec 17 10:57:47.892 INFO [stderr]    |
Dec 17 10:57:47.892 INFO [stderr] 76 |                             connection.write_message(&ClientMessage::Chain(chain.clone()));
Dec 17 10:57:47.892 INFO [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.893 INFO [stderr]    |
Dec 17 10:57:47.893 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 10:57:47.893 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.893 INFO [stderr] 
Dec 17 10:57:47.893 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.893 INFO [stderr]   --> src/bin/main.rs:95:33
Dec 17 10:57:47.893 INFO [stderr]    |
Dec 17 10:57:47.893 INFO [stderr] 95 |                                 connection.write_message(&ClientMessage::QueryChain);
Dec 17 10:57:47.893 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.893 INFO [stderr]    |
Dec 17 10:57:47.893 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.893 INFO [stderr] 
Dec 17 10:57:47.893 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.893 INFO [stderr]    --> src/bin/main.rs:212:5
Dec 17 10:57:47.893 INFO [stderr]     |
Dec 17 10:57:47.893 INFO [stderr] 212 |     nameserver_connection.write_message(&ClientToNameserverMessage::Query);
Dec 17 10:57:47.893 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.893 INFO [stderr]     |
Dec 17 10:57:47.893 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.893 INFO [stderr] 
Dec 17 10:57:47.900 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.900 INFO [stderr]    --> src/bin/main.rs:268:5
Dec 17 10:57:47.900 INFO [stderr]     |
Dec 17 10:57:47.900 INFO [stderr] 268 |     nameserver_connection.write_message(&ClientToNameserverMessage::Inform(my_addr.port()));
Dec 17 10:57:47.900 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.916 INFO [stderr]     |
Dec 17 10:57:47.916 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.916 INFO [stderr] 
Dec 17 10:57:47.916 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.916 INFO [stderr]    --> src/bin/main.rs:291:33
Dec 17 10:57:47.916 INFO [stderr]     |
Dec 17 10:57:47.916 INFO [stderr] 291 |                                 peer.write_message(&ClientMessage::NewBlock(new_block.clone()));
Dec 17 10:57:47.916 INFO [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.917 INFO [stderr]     |
Dec 17 10:57:47.917 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.917 INFO [stderr] 
Dec 17 10:57:47.917 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.917 INFO [stderr]    --> src/bin/main.rs:357:5
Dec 17 10:57:47.917 INFO [stderr]     |
Dec 17 10:57:47.917 INFO [stderr] 357 |     repl_thread.join();
Dec 17 10:57:47.917 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.917 INFO [stderr]     |
Dec 17 10:57:47.917 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.917 INFO [stderr] 
Dec 17 10:57:47.917 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 10:57:47.917 INFO [stderr]    --> src/bin/main.rs:358:5
Dec 17 10:57:47.917 INFO [stderr]     |
Dec 17 10:57:47.917 INFO [stderr] 358 |     listener_thread.join();
Dec 17 10:57:47.917 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 10:57:47.917 INFO [stderr]     |
Dec 17 10:57:47.917 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 10:57:47.917 INFO [stderr] 
Dec 17 10:57:47.949 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.97s
Dec 17 10:57:48.614 INFO running `"docker" "inspect" "5d4dc2adac592a6c74521b4fd75990aed7f03504705f782dc6d86de6c8c525c2"`
Dec 17 10:57:48.863 INFO running `"docker" "rm" "-f" "5d4dc2adac592a6c74521b4fd75990aed7f03504705f782dc6d86de6c8c525c2"`
Dec 17 10:57:49.156 INFO [stdout] 5d4dc2adac592a6c74521b4fd75990aed7f03504705f782dc6d86de6c8c525c2