Nov 27 16:05:23.602 INFO checking zgotsch/rs-blockchain against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 16:05:23.602 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 27 16:05:24.065 INFO [stdout] 0fd18a848effff9cca1b874061302d0d4a5f21a422ef1d79f4d11aa73aa56dbf
Nov 27 16:05:24.073 INFO running `"docker" "start" "-a" "0fd18a848effff9cca1b874061302d0d4a5f21a422ef1d79f4d11aa73aa56dbf"`
Nov 27 16:05:26.076 INFO [stderr] usermod: no changes
Nov 27 16:05:26.253 INFO [stderr]    Compiling unicode-xid v0.0.4
Nov 27 16:05:26.253 INFO [stderr]    Compiling gcc v0.3.50
Nov 27 16:05:26.257 INFO [stderr]    Compiling quote v0.3.15
Nov 27 16:05:26.258 INFO [stderr]     Checking libc v0.2.23
Nov 27 16:05:26.258 INFO [stderr]     Checking serde v1.0.8
Nov 27 16:05:26.258 INFO [stderr]     Checking num-traits v0.1.37
Nov 27 16:05:26.259 INFO [stderr]     Checking byteorder v1.0.0
Nov 27 16:05:26.260 INFO [stderr]     Checking getopts v0.2.14
Nov 27 16:05:27.768 INFO [stderr]    Compiling synom v0.11.3
Nov 27 16:05:28.848 INFO [stderr]     Checking base64 v0.5.2
Nov 27 16:05:30.825 INFO [stderr]    Compiling syn v0.11.11
Nov 27 16:05:31.589 INFO [stderr]     Checking time v0.1.37
Nov 27 16:05:33.799 INFO [stderr]     Checking rand v0.3.15
Nov 27 16:05:33.977 INFO [stderr]    Compiling rust-crypto v0.2.36
Nov 27 16:05:40.921 INFO [stderr]    Compiling serde_derive_internals v0.15.1
Nov 27 16:05:44.772 INFO [stderr]    Compiling serde_derive v1.0.8
Nov 27 16:05:51.109 INFO [stderr]     Checking bincode v0.8.0
Nov 27 16:05:53.986 INFO [stderr]     Checking naivechain-rs v0.1.0 (/source)
Nov 27 16:05:54.637 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:05:54.637 INFO [stderr]    --> src/block.rs:120:9
Nov 27 16:05:54.637 INFO [stderr]     |
Nov 27 16:05:54.637 INFO [stderr] 120 |     let mut buf = &mut [0; 8];
Nov 27 16:05:54.637 INFO [stderr]     |         ----^^^
Nov 27 16:05:54.637 INFO [stderr]     |         |
Nov 27 16:05:54.637 INFO [stderr]     |         help: remove this `mut`
Nov 27 16:05:54.637 INFO [stderr]     |
Nov 27 16:05:54.637 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 27 16:05:54.637 INFO [stderr] 
Nov 27 16:05:54.638 INFO [stderr] warning: field is never used: `next_message_size`
Nov 27 16:05:54.638 INFO [stderr]   --> src/connection.rs:11:5
Nov 27 16:05:54.638 INFO [stderr]    |
Nov 27 16:05:54.638 INFO [stderr] 11 |     next_message_size: Option<u64>,
Nov 27 16:05:54.642 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:54.642 INFO [stderr]    |
Nov 27 16:05:54.642 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 27 16:05:54.642 INFO [stderr] 
Nov 27 16:05:54.700 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:05:54.700 INFO [stderr]    --> src/block.rs:120:9
Nov 27 16:05:54.700 INFO [stderr]     |
Nov 27 16:05:54.700 INFO [stderr] 120 |     let mut buf = &mut [0; 8];
Nov 27 16:05:54.700 INFO [stderr]     |         ----^^^
Nov 27 16:05:54.700 INFO [stderr]     |         |
Nov 27 16:05:54.700 INFO [stderr]     |         help: remove this `mut`
Nov 27 16:05:54.700 INFO [stderr]     |
Nov 27 16:05:54.700 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 27 16:05:54.700 INFO [stderr] 
Nov 27 16:05:54.703 INFO [stderr] warning: field is never used: `next_message_size`
Nov 27 16:05:54.703 INFO [stderr]   --> src/connection.rs:11:5
Nov 27 16:05:54.703 INFO [stderr]    |
Nov 27 16:05:54.703 INFO [stderr] 11 |     next_message_size: Option<u64>,
Nov 27 16:05:54.703 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:54.703 INFO [stderr]    |
Nov 27 16:05:54.703 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 27 16:05:54.703 INFO [stderr] 
Nov 27 16:05:55.092 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 16:05:55.092 INFO [stderr]  --> src/bin/main.rs:3:1
Nov 27 16:05:55.092 INFO [stderr]   |
Nov 27 16:05:55.092 INFO [stderr] 3 | #[macro_use]
Nov 27 16:05:55.092 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 16:05:55.092 INFO [stderr]   |
Nov 27 16:05:55.092 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 16:05:55.092 INFO [stderr] 
Nov 27 16:05:55.092 INFO [stderr] warning: unused import: `std::error::Error`
Nov 27 16:05:55.092 INFO [stderr]   --> src/bin/main.rs:13:5
Nov 27 16:05:55.092 INFO [stderr]    |
Nov 27 16:05:55.092 INFO [stderr] 13 | use std::error::Error;
Nov 27 16:05:55.092 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.092 INFO [stderr] 
Nov 27 16:05:55.092 INFO [stderr] warning: unused import: `std::fs::File`
Nov 27 16:05:55.092 INFO [stderr]   --> src/bin/main.rs:14:5
Nov 27 16:05:55.092 INFO [stderr]    |
Nov 27 16:05:55.093 INFO [stderr] 14 | use std::fs::File;
Nov 27 16:05:55.093 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 27 16:05:55.093 INFO [stderr] 
Nov 27 16:05:55.093 INFO [stderr] warning: unused import: `std::path::Path`
Nov 27 16:05:55.093 INFO [stderr]   --> src/bin/main.rs:15:5
Nov 27 16:05:55.093 INFO [stderr]    |
Nov 27 16:05:55.093 INFO [stderr] 15 | use std::path::Path;
Nov 27 16:05:55.093 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 27 16:05:55.093 INFO [stderr] 
Nov 27 16:05:55.093 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Nov 27 16:05:55.093 INFO [stderr]   --> src/bin/main.rs:18:5
Nov 27 16:05:55.093 INFO [stderr]    |
Nov 27 16:05:55.093 INFO [stderr] 18 | use std::net::ToSocketAddrs;
Nov 27 16:05:55.093 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.093 INFO [stderr] 
Nov 27 16:05:55.093 INFO [stderr] warning: unused imports: `Infinite`, `serialize`
Nov 27 16:05:55.093 INFO [stderr]   --> src/bin/main.rs:24:15
Nov 27 16:05:55.093 INFO [stderr]    |
Nov 27 16:05:55.093 INFO [stderr] 24 | use bincode::{serialize, deserialize, Infinite};
Nov 27 16:05:55.093 INFO [stderr]    |               ^^^^^^^^^               ^^^^^^^^
Nov 27 16:05:55.093 INFO [stderr] 
Nov 27 16:05:55.100 INFO [stderr] warning: unused import: `TcpStream`
Nov 27 16:05:55.100 INFO [stderr]  --> src/bin/nameserver.rs:1:29
Nov 27 16:05:55.100 INFO [stderr]   |
Nov 27 16:05:55.100 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream, SocketAddr};
Nov 27 16:05:55.100 INFO [stderr]   |                             ^^^^^^^^^
Nov 27 16:05:55.100 INFO [stderr]   |
Nov 27 16:05:55.100 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 16:05:55.100 INFO [stderr] 
Nov 27 16:05:55.100 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Nov 27 16:05:55.100 INFO [stderr]  --> src/bin/nameserver.rs:7:5
Nov 27 16:05:55.100 INFO [stderr]   |
Nov 27 16:05:55.100 INFO [stderr] 7 | use std::net::ToSocketAddrs;
Nov 27 16:05:55.100 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.100 INFO [stderr] 
Nov 27 16:05:55.100 INFO [stderr] warning: unused import: `ClientMessage`
Nov 27 16:05:55.100 INFO [stderr]   --> src/bin/nameserver.rs:12:30
Nov 27 16:05:55.100 INFO [stderr]    |
Nov 27 16:05:55.100 INFO [stderr] 12 | use naivechain_rs::message::{ClientMessage, ClientToNameserverMessage, NameserverToClientMessage};
Nov 27 16:05:55.100 INFO [stderr]    |                              ^^^^^^^^^^^^^
Nov 27 16:05:55.100 INFO [stderr] 
Nov 27 16:05:55.164 INFO [stderr] warning: unused import: `TcpStream`
Nov 27 16:05:55.164 INFO [stderr]  --> src/bin/nameserver.rs:1:29
Nov 27 16:05:55.164 INFO [stderr]   |
Nov 27 16:05:55.164 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream, SocketAddr};
Nov 27 16:05:55.164 INFO [stderr]   |                             ^^^^^^^^^
Nov 27 16:05:55.164 INFO [stderr]   |
Nov 27 16:05:55.164 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 16:05:55.164 INFO [stderr] 
Nov 27 16:05:55.164 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Nov 27 16:05:55.164 INFO [stderr]  --> src/bin/nameserver.rs:7:5
Nov 27 16:05:55.164 INFO [stderr]   |
Nov 27 16:05:55.164 INFO [stderr] 7 | use std::net::ToSocketAddrs;
Nov 27 16:05:55.164 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.164 INFO [stderr] 
Nov 27 16:05:55.164 INFO [stderr] warning: unused import: `ClientMessage`
Nov 27 16:05:55.164 INFO [stderr]   --> src/bin/nameserver.rs:12:30
Nov 27 16:05:55.164 INFO [stderr]    |
Nov 27 16:05:55.164 INFO [stderr] 12 | use naivechain_rs::message::{ClientMessage, ClientToNameserverMessage, NameserverToClientMessage};
Nov 27 16:05:55.164 INFO [stderr]    |                              ^^^^^^^^^^^^^
Nov 27 16:05:55.164 INFO [stderr] 
Nov 27 16:05:55.233 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 16:05:55.233 INFO [stderr]  --> src/bin/main.rs:3:1
Nov 27 16:05:55.233 INFO [stderr]   |
Nov 27 16:05:55.233 INFO [stderr] 3 | #[macro_use]
Nov 27 16:05:55.233 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 16:05:55.233 INFO [stderr]   |
Nov 27 16:05:55.233 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 16:05:55.233 INFO [stderr] 
Nov 27 16:05:55.233 INFO [stderr] warning: unused import: `std::error::Error`
Nov 27 16:05:55.233 INFO [stderr]   --> src/bin/main.rs:13:5
Nov 27 16:05:55.233 INFO [stderr]    |
Nov 27 16:05:55.233 INFO [stderr] 13 | use std::error::Error;
Nov 27 16:05:55.233 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.245 INFO [stderr] 
Nov 27 16:05:55.245 INFO [stderr] warning: unused import: `std::fs::File`
Nov 27 16:05:55.245 INFO [stderr]   --> src/bin/main.rs:14:5
Nov 27 16:05:55.245 INFO [stderr]    |
Nov 27 16:05:55.245 INFO [stderr] 14 | use std::fs::File;
Nov 27 16:05:55.245 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 27 16:05:55.245 INFO [stderr] 
Nov 27 16:05:55.245 INFO [stderr] warning: unused import: `std::path::Path`
Nov 27 16:05:55.246 INFO [stderr]   --> src/bin/main.rs:15:5
Nov 27 16:05:55.246 INFO [stderr]    |
Nov 27 16:05:55.246 INFO [stderr] 15 | use std::path::Path;
Nov 27 16:05:55.246 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 27 16:05:55.246 INFO [stderr] 
Nov 27 16:05:55.246 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Nov 27 16:05:55.246 INFO [stderr]   --> src/bin/main.rs:18:5
Nov 27 16:05:55.246 INFO [stderr]    |
Nov 27 16:05:55.246 INFO [stderr] 18 | use std::net::ToSocketAddrs;
Nov 27 16:05:55.246 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.246 INFO [stderr] 
Nov 27 16:05:55.246 INFO [stderr] warning: unused imports: `Infinite`, `serialize`
Nov 27 16:05:55.246 INFO [stderr]   --> src/bin/main.rs:24:15
Nov 27 16:05:55.246 INFO [stderr]    |
Nov 27 16:05:55.246 INFO [stderr] 24 | use bincode::{serialize, deserialize, Infinite};
Nov 27 16:05:55.246 INFO [stderr]    |               ^^^^^^^^^               ^^^^^^^^
Nov 27 16:05:55.246 INFO [stderr] 
Nov 27 16:05:55.341 INFO [stderr] warning: unused import: `std::io::Read`
Nov 27 16:05:55.341 INFO [stderr]  --> src/bin/nameserver.rs:3:5
Nov 27 16:05:55.341 INFO [stderr]   |
Nov 27 16:05:55.341 INFO [stderr] 3 | use std::io::Read;
Nov 27 16:05:55.341 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 27 16:05:55.341 INFO [stderr] 
Nov 27 16:05:55.356 INFO [stderr] warning: unused import: `std::io::Read`
Nov 27 16:05:55.356 INFO [stderr]  --> src/bin/nameserver.rs:3:5
Nov 27 16:05:55.356 INFO [stderr]   |
Nov 27 16:05:55.356 INFO [stderr] 3 | use std::io::Read;
Nov 27 16:05:55.356 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 27 16:05:55.356 INFO [stderr] 
Nov 27 16:05:55.425 INFO [stderr] warning: unreachable pattern
Nov 27 16:05:55.425 INFO [stderr]    --> src/bin/main.rs:315:21
Nov 27 16:05:55.425 INFO [stderr]     |
Nov 27 16:05:55.425 INFO [stderr] 315 |                     Ok(_) => {println!("Unhandled command");},
Nov 27 16:05:55.425 INFO [stderr]     |                     ^^^^^
Nov 27 16:05:55.425 INFO [stderr]     |
Nov 27 16:05:55.425 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Nov 27 16:05:55.425 INFO [stderr] 
Nov 27 16:05:55.532 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:05:55.532 INFO [stderr]    --> src/bin/main.rs:188:9
Nov 27 16:05:55.532 INFO [stderr]     |
Nov 27 16:05:55.532 INFO [stderr] 188 |     let mut nameserver_stream = TcpStream::connect(nameserver_str).expect("Couldn't connet to nameserver");
Nov 27 16:05:55.532 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.532 INFO [stderr]     |         |
Nov 27 16:05:55.532 INFO [stderr]     |         help: remove this `mut`
Nov 27 16:05:55.532 INFO [stderr]     |
Nov 27 16:05:55.532 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 27 16:05:55.532 INFO [stderr] 
Nov 27 16:05:55.532 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:05:55.532 INFO [stderr]    --> src/bin/main.rs:206:9
Nov 27 16:05:55.532 INFO [stderr]     |
Nov 27 16:05:55.532 INFO [stderr] 206 |     let mut peers: Arc<Mutex<Vec<Arc<Mutex<Connection>>>>> = Arc::new(Mutex::new(Vec::new()));
Nov 27 16:05:55.532 INFO [stderr]     |         ----^^^^^
Nov 27 16:05:55.532 INFO [stderr]     |         |
Nov 27 16:05:55.532 INFO [stderr]     |         help: remove this `mut`
Nov 27 16:05:55.532 INFO [stderr] 
Nov 27 16:05:55.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.533 INFO [stderr]   --> src/bin/main.rs:76:29
Nov 27 16:05:55.533 INFO [stderr]    |
Nov 27 16:05:55.533 INFO [stderr] 76 |                             connection.write_message(&ClientMessage::Chain(chain.clone()));
Nov 27 16:05:55.533 INFO [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.533 INFO [stderr]    |
Nov 27 16:05:55.533 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 16:05:55.533 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.533 INFO [stderr] 
Nov 27 16:05:55.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.533 INFO [stderr]   --> src/bin/main.rs:95:33
Nov 27 16:05:55.533 INFO [stderr]    |
Nov 27 16:05:55.533 INFO [stderr] 95 |                                 connection.write_message(&ClientMessage::QueryChain);
Nov 27 16:05:55.533 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.534 INFO [stderr]    |
Nov 27 16:05:55.534 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.534 INFO [stderr] 
Nov 27 16:05:55.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.534 INFO [stderr]    --> src/bin/main.rs:212:5
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr] 212 |     nameserver_connection.write_message(&ClientToNameserverMessage::Query);
Nov 27 16:05:55.534 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.534 INFO [stderr] 
Nov 27 16:05:55.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.534 INFO [stderr]    --> src/bin/main.rs:268:5
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr] 268 |     nameserver_connection.write_message(&ClientToNameserverMessage::Inform(my_addr.port()));
Nov 27 16:05:55.534 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.534 INFO [stderr] 
Nov 27 16:05:55.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.534 INFO [stderr]    --> src/bin/main.rs:291:33
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr] 291 |                                 peer.write_message(&ClientMessage::NewBlock(new_block.clone()));
Nov 27 16:05:55.534 INFO [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.534 INFO [stderr] 
Nov 27 16:05:55.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.534 INFO [stderr]    --> src/bin/main.rs:357:5
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr] 357 |     repl_thread.join();
Nov 27 16:05:55.534 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.534 INFO [stderr] 
Nov 27 16:05:55.534 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.534 INFO [stderr]    --> src/bin/main.rs:358:5
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr] 358 |     listener_thread.join();
Nov 27 16:05:55.534 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.534 INFO [stderr]     |
Nov 27 16:05:55.534 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.534 INFO [stderr] 
Nov 27 16:05:55.620 INFO [stderr] warning: unreachable pattern
Nov 27 16:05:55.620 INFO [stderr]    --> src/bin/main.rs:315:21
Nov 27 16:05:55.620 INFO [stderr]     |
Nov 27 16:05:55.620 INFO [stderr] 315 |                     Ok(_) => {println!("Unhandled command");},
Nov 27 16:05:55.620 INFO [stderr]     |                     ^^^^^
Nov 27 16:05:55.620 INFO [stderr]     |
Nov 27 16:05:55.620 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Nov 27 16:05:55.620 INFO [stderr] 
Nov 27 16:05:55.680 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:05:55.680 INFO [stderr]    --> src/bin/main.rs:188:9
Nov 27 16:05:55.680 INFO [stderr]     |
Nov 27 16:05:55.680 INFO [stderr] 188 |     let mut nameserver_stream = TcpStream::connect(nameserver_str).expect("Couldn't connet to nameserver");
Nov 27 16:05:55.680 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.680 INFO [stderr]     |         |
Nov 27 16:05:55.681 INFO [stderr]     |         help: remove this `mut`
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.681 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:05:55.681 INFO [stderr]    --> src/bin/main.rs:206:9
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr] 206 |     let mut peers: Arc<Mutex<Vec<Arc<Mutex<Connection>>>>> = Arc::new(Mutex::new(Vec::new()));
Nov 27 16:05:55.681 INFO [stderr]     |         ----^^^^^
Nov 27 16:05:55.681 INFO [stderr]     |         |
Nov 27 16:05:55.681 INFO [stderr]     |         help: remove this `mut`
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.681 INFO [stderr]   --> src/bin/main.rs:76:29
Nov 27 16:05:55.681 INFO [stderr]    |
Nov 27 16:05:55.681 INFO [stderr] 76 |                             connection.write_message(&ClientMessage::Chain(chain.clone()));
Nov 27 16:05:55.681 INFO [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.681 INFO [stderr]    |
Nov 27 16:05:55.681 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 16:05:55.681 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.681 INFO [stderr]   --> src/bin/main.rs:95:33
Nov 27 16:05:55.681 INFO [stderr]    |
Nov 27 16:05:55.681 INFO [stderr] 95 |                                 connection.write_message(&ClientMessage::QueryChain);
Nov 27 16:05:55.681 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.681 INFO [stderr]    |
Nov 27 16:05:55.681 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.681 INFO [stderr]    --> src/bin/main.rs:212:5
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr] 212 |     nameserver_connection.write_message(&ClientToNameserverMessage::Query);
Nov 27 16:05:55.681 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.681 INFO [stderr]    --> src/bin/main.rs:268:5
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr] 268 |     nameserver_connection.write_message(&ClientToNameserverMessage::Inform(my_addr.port()));
Nov 27 16:05:55.681 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.681 INFO [stderr]    --> src/bin/main.rs:291:33
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr] 291 |                                 peer.write_message(&ClientMessage::NewBlock(new_block.clone()));
Nov 27 16:05:55.681 INFO [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.681 INFO [stderr]    --> src/bin/main.rs:357:5
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr] 357 |     repl_thread.join();
Nov 27 16:05:55.681 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:55.681 INFO [stderr]    --> src/bin/main.rs:358:5
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr] 358 |     listener_thread.join();
Nov 27 16:05:55.681 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:55.681 INFO [stderr]     |
Nov 27 16:05:55.681 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:55.681 INFO [stderr] 
Nov 27 16:05:55.732 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.61s
Nov 27 16:05:55.746 INFO [stderr] su: No module specific data is present
Nov 27 16:05:56.248 INFO running `"docker" "inspect" "0fd18a848effff9cca1b874061302d0d4a5f21a422ef1d79f4d11aa73aa56dbf"`
Nov 27 16:05:56.476 INFO running `"docker" "rm" "-f" "0fd18a848effff9cca1b874061302d0d4a5f21a422ef1d79f4d11aa73aa56dbf"`
Nov 27 16:05:56.794 INFO [stdout] 0fd18a848effff9cca1b874061302d0d4a5f21a422ef1d79f4d11aa73aa56dbf