Dec 12 19:34:05.461 INFO testing zgotsch/rs-blockchain against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 12 19:34:05.461 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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"`
Dec 12 19:34:05.675 INFO [stdout] c127478d96f5b6d4a9fd03d2fa69d9cef4ec9242fd5a93f47e1baac5fb05122d
Dec 12 19:34:05.677 INFO running `"docker" "start" "-a" "c127478d96f5b6d4a9fd03d2fa69d9cef4ec9242fd5a93f47e1baac5fb05122d"`
Dec 12 19:34:06.008 INFO [stderr] usermod: no changes
Dec 12 19:34:06.088 INFO [stderr]    Compiling gcc v0.3.50
Dec 12 19:34:06.088 INFO [stderr]    Compiling libc v0.2.23
Dec 12 19:34:06.088 INFO [stderr]    Compiling serde v1.0.8
Dec 12 19:34:06.088 INFO [stderr]    Compiling getopts v0.2.14
Dec 12 19:34:06.096 INFO [stderr]    Compiling serde_derive_internals v0.15.1
Dec 12 19:34:08.278 INFO [stderr]    Compiling rand v0.3.15
Dec 12 19:34:08.351 INFO [stderr]    Compiling time v0.1.37
Dec 12 19:34:09.199 INFO [stderr]    Compiling serde_derive v1.0.8
Dec 12 19:34:09.274 INFO [stderr]    Compiling rust-crypto v0.2.36
Dec 12 19:34:17.538 INFO [stderr]    Compiling bincode v0.8.0
Dec 12 19:34:19.230 INFO [stderr]    Compiling naivechain-rs v0.1.0 (/source)
Dec 12 19:34:19.671 INFO [stderr] warning: variable does not need to be mutable
Dec 12 19:34:19.671 INFO [stderr]    --> src/block.rs:120:9
Dec 12 19:34:19.671 INFO [stderr]     |
Dec 12 19:34:19.671 INFO [stderr] 120 |     let mut buf = &mut [0; 8];
Dec 12 19:34:19.671 INFO [stderr]     |         ----^^^
Dec 12 19:34:19.671 INFO [stderr]     |         |
Dec 12 19:34:19.671 INFO [stderr]     |         help: remove this `mut`
Dec 12 19:34:19.671 INFO [stderr]     |
Dec 12 19:34:19.671 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 19:34:19.671 INFO [stderr] 
Dec 12 19:34:19.675 INFO [stderr] warning: field is never used: `next_message_size`
Dec 12 19:34:19.675 INFO [stderr]   --> src/connection.rs:11:5
Dec 12 19:34:19.675 INFO [stderr]    |
Dec 12 19:34:19.675 INFO [stderr] 11 |     next_message_size: Option<u64>,
Dec 12 19:34:19.675 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:19.675 INFO [stderr]    |
Dec 12 19:34:19.675 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 19:34:19.675 INFO [stderr] 
Dec 12 19:34:20.048 INFO [stderr] warning: unused import: `TcpStream`
Dec 12 19:34:20.048 INFO [stderr]  --> src/bin/nameserver.rs:1:29
Dec 12 19:34:20.048 INFO [stderr]   |
Dec 12 19:34:20.048 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream, SocketAddr};
Dec 12 19:34:20.048 INFO [stderr]   |                             ^^^^^^^^^
Dec 12 19:34:20.048 INFO [stderr]   |
Dec 12 19:34:20.048 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 19:34:20.048 INFO [stderr] 
Dec 12 19:34:20.048 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Dec 12 19:34:20.048 INFO [stderr]  --> src/bin/nameserver.rs:7:5
Dec 12 19:34:20.048 INFO [stderr]   |
Dec 12 19:34:20.048 INFO [stderr] 7 | use std::net::ToSocketAddrs;
Dec 12 19:34:20.048 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.048 INFO [stderr] 
Dec 12 19:34:20.048 INFO [stderr] warning: unused import: `ClientMessage`
Dec 12 19:34:20.048 INFO [stderr]   --> src/bin/nameserver.rs:12:30
Dec 12 19:34:20.048 INFO [stderr]    |
Dec 12 19:34:20.048 INFO [stderr] 12 | use naivechain_rs::message::{ClientMessage, ClientToNameserverMessage, NameserverToClientMessage};
Dec 12 19:34:20.048 INFO [stderr]    |                              ^^^^^^^^^^^^^
Dec 12 19:34:20.048 INFO [stderr] 
Dec 12 19:34:20.063 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 19:34:20.063 INFO [stderr]  --> src/bin/main.rs:3:1
Dec 12 19:34:20.063 INFO [stderr]   |
Dec 12 19:34:20.063 INFO [stderr] 3 | #[macro_use]
Dec 12 19:34:20.063 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 19:34:20.063 INFO [stderr]   |
Dec 12 19:34:20.063 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 19:34:20.063 INFO [stderr] 
Dec 12 19:34:20.063 INFO [stderr] warning: unused import: `std::error::Error`
Dec 12 19:34:20.063 INFO [stderr]   --> src/bin/main.rs:13:5
Dec 12 19:34:20.063 INFO [stderr]    |
Dec 12 19:34:20.063 INFO [stderr] 13 | use std::error::Error;
Dec 12 19:34:20.063 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.063 INFO [stderr] 
Dec 12 19:34:20.063 INFO [stderr] warning: unused import: `std::fs::File`
Dec 12 19:34:20.063 INFO [stderr]   --> src/bin/main.rs:14:5
Dec 12 19:34:20.063 INFO [stderr]    |
Dec 12 19:34:20.063 INFO [stderr] 14 | use std::fs::File;
Dec 12 19:34:20.063 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 12 19:34:20.063 INFO [stderr] 
Dec 12 19:34:20.063 INFO [stderr] warning: unused import: `std::path::Path`
Dec 12 19:34:20.063 INFO [stderr]   --> src/bin/main.rs:15:5
Dec 12 19:34:20.063 INFO [stderr]    |
Dec 12 19:34:20.063 INFO [stderr] 15 | use std::path::Path;
Dec 12 19:34:20.063 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 12 19:34:20.064 INFO [stderr] 
Dec 12 19:34:20.064 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Dec 12 19:34:20.064 INFO [stderr]   --> src/bin/main.rs:18:5
Dec 12 19:34:20.064 INFO [stderr]    |
Dec 12 19:34:20.064 INFO [stderr] 18 | use std::net::ToSocketAddrs;
Dec 12 19:34:20.064 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.064 INFO [stderr] 
Dec 12 19:34:20.064 INFO [stderr] warning: unused imports: `Infinite`, `serialize`
Dec 12 19:34:20.064 INFO [stderr]   --> src/bin/main.rs:24:15
Dec 12 19:34:20.064 INFO [stderr]    |
Dec 12 19:34:20.064 INFO [stderr] 24 | use bincode::{serialize, deserialize, Infinite};
Dec 12 19:34:20.064 INFO [stderr]    |               ^^^^^^^^^               ^^^^^^^^
Dec 12 19:34:20.064 INFO [stderr] 
Dec 12 19:34:20.093 INFO [stderr] warning: unused import: `std::io::Read`
Dec 12 19:34:20.093 INFO [stderr]  --> src/bin/nameserver.rs:3:5
Dec 12 19:34:20.093 INFO [stderr]   |
Dec 12 19:34:20.093 INFO [stderr] 3 | use std::io::Read;
Dec 12 19:34:20.093 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 19:34:20.093 INFO [stderr] 
Dec 12 19:34:20.140 INFO [stderr] warning: unreachable pattern
Dec 12 19:34:20.140 INFO [stderr]    --> src/bin/main.rs:315:21
Dec 12 19:34:20.140 INFO [stderr]     |
Dec 12 19:34:20.140 INFO [stderr] 315 |                     Ok(_) => {println!("Unhandled command");},
Dec 12 19:34:20.140 INFO [stderr]     |                     ^^^^^
Dec 12 19:34:20.140 INFO [stderr]     |
Dec 12 19:34:20.140 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 12 19:34:20.140 INFO [stderr] 
Dec 12 19:34:20.176 INFO [stderr] warning: variable does not need to be mutable
Dec 12 19:34:20.176 INFO [stderr]    --> src/bin/main.rs:188:9
Dec 12 19:34:20.176 INFO [stderr]     |
Dec 12 19:34:20.176 INFO [stderr] 188 |     let mut nameserver_stream = TcpStream::connect(nameserver_str).expect("Couldn't connet to nameserver");
Dec 12 19:34:20.176 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.176 INFO [stderr]     |         |
Dec 12 19:34:20.176 INFO [stderr]     |         help: remove this `mut`
Dec 12 19:34:20.176 INFO [stderr]     |
Dec 12 19:34:20.176 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 19:34:20.176 INFO [stderr] 
Dec 12 19:34:20.176 INFO [stderr] warning: variable does not need to be mutable
Dec 12 19:34:20.176 INFO [stderr]    --> src/bin/main.rs:206:9
Dec 12 19:34:20.176 INFO [stderr]     |
Dec 12 19:34:20.176 INFO [stderr] 206 |     let mut peers: Arc<Mutex<Vec<Arc<Mutex<Connection>>>>> = Arc::new(Mutex::new(Vec::new()));
Dec 12 19:34:20.176 INFO [stderr]     |         ----^^^^^
Dec 12 19:34:20.176 INFO [stderr]     |         |
Dec 12 19:34:20.176 INFO [stderr]     |         help: remove this `mut`
Dec 12 19:34:20.176 INFO [stderr] 
Dec 12 19:34:20.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:20.177 INFO [stderr]   --> src/bin/main.rs:76:29
Dec 12 19:34:20.177 INFO [stderr]    |
Dec 12 19:34:20.177 INFO [stderr] 76 |                             connection.write_message(&ClientMessage::Chain(chain.clone()));
Dec 12 19:34:20.177 INFO [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.177 INFO [stderr]    |
Dec 12 19:34:20.177 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 19:34:20.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:20.177 INFO [stderr] 
Dec 12 19:34:20.177 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:20.177 INFO [stderr]   --> src/bin/main.rs:95:33
Dec 12 19:34:20.177 INFO [stderr]    |
Dec 12 19:34:20.177 INFO [stderr] 95 |                                 connection.write_message(&ClientMessage::QueryChain);
Dec 12 19:34:20.177 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.177 INFO [stderr]    |
Dec 12 19:34:20.177 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:20.177 INFO [stderr] 
Dec 12 19:34:20.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:20.178 INFO [stderr]    --> src/bin/main.rs:212:5
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr] 212 |     nameserver_connection.write_message(&ClientToNameserverMessage::Query);
Dec 12 19:34:20.178 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:20.178 INFO [stderr] 
Dec 12 19:34:20.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:20.178 INFO [stderr]    --> src/bin/main.rs:268:5
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr] 268 |     nameserver_connection.write_message(&ClientToNameserverMessage::Inform(my_addr.port()));
Dec 12 19:34:20.178 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:20.178 INFO [stderr] 
Dec 12 19:34:20.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:20.178 INFO [stderr]    --> src/bin/main.rs:291:33
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr] 291 |                                 peer.write_message(&ClientMessage::NewBlock(new_block.clone()));
Dec 12 19:34:20.178 INFO [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:20.178 INFO [stderr] 
Dec 12 19:34:20.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:20.178 INFO [stderr]    --> src/bin/main.rs:357:5
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr] 357 |     repl_thread.join();
Dec 12 19:34:20.178 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:20.178 INFO [stderr] 
Dec 12 19:34:20.178 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:20.178 INFO [stderr]    --> src/bin/main.rs:358:5
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr] 358 |     listener_thread.join();
Dec 12 19:34:20.178 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:20.178 INFO [stderr]     |
Dec 12 19:34:20.178 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:20.178 INFO [stderr] 
Dec 12 19:34:21.805 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.77s
Dec 12 19:34:21.810 INFO [stderr] su: No module specific data is present
Dec 12 19:34:22.274 INFO running `"docker" "inspect" "c127478d96f5b6d4a9fd03d2fa69d9cef4ec9242fd5a93f47e1baac5fb05122d"`
Dec 12 19:34:22.444 INFO running `"docker" "rm" "-f" "c127478d96f5b6d4a9fd03d2fa69d9cef4ec9242fd5a93f47e1baac5fb05122d"`
Dec 12 19:34:22.575 INFO [stdout] c127478d96f5b6d4a9fd03d2fa69d9cef4ec9242fd5a93f47e1baac5fb05122d
Dec 12 19:34:22.577 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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"`
Dec 12 19:34:22.830 INFO [stdout] fc6d36994375e71d1e3f78b25da9f3a891f55777bc7261f21967f33b2ca22dc2
Dec 12 19:34:22.832 INFO running `"docker" "start" "-a" "fc6d36994375e71d1e3f78b25da9f3a891f55777bc7261f21967f33b2ca22dc2"`
Dec 12 19:34:23.183 INFO [stderr] usermod: no changes
Dec 12 19:34:23.233 INFO [stderr]    Compiling naivechain-rs v0.1.0 (/source)
Dec 12 19:34:23.375 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 19:34:23.375 INFO [stderr]  --> src/bin/main.rs:3:1
Dec 12 19:34:23.375 INFO [stderr]   |
Dec 12 19:34:23.375 INFO [stderr] 3 | #[macro_use]
Dec 12 19:34:23.375 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 19:34:23.375 INFO [stderr]   |
Dec 12 19:34:23.375 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 19:34:23.375 INFO [stderr] 
Dec 12 19:34:23.375 INFO [stderr] warning: unused import: `std::error::Error`
Dec 12 19:34:23.375 INFO [stderr]   --> src/bin/main.rs:13:5
Dec 12 19:34:23.375 INFO [stderr]    |
Dec 12 19:34:23.375 INFO [stderr] 13 | use std::error::Error;
Dec 12 19:34:23.375 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.375 INFO [stderr] 
Dec 12 19:34:23.375 INFO [stderr] warning: unused import: `std::fs::File`
Dec 12 19:34:23.375 INFO [stderr]   --> src/bin/main.rs:14:5
Dec 12 19:34:23.375 INFO [stderr]    |
Dec 12 19:34:23.375 INFO [stderr] 14 | use std::fs::File;
Dec 12 19:34:23.375 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 12 19:34:23.375 INFO [stderr] 
Dec 12 19:34:23.375 INFO [stderr] warning: unused import: `std::path::Path`
Dec 12 19:34:23.375 INFO [stderr]   --> src/bin/main.rs:15:5
Dec 12 19:34:23.375 INFO [stderr]    |
Dec 12 19:34:23.375 INFO [stderr] 15 | use std::path::Path;
Dec 12 19:34:23.375 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 12 19:34:23.375 INFO [stderr] 
Dec 12 19:34:23.375 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Dec 12 19:34:23.375 INFO [stderr]   --> src/bin/main.rs:18:5
Dec 12 19:34:23.375 INFO [stderr]    |
Dec 12 19:34:23.375 INFO [stderr] 18 | use std::net::ToSocketAddrs;
Dec 12 19:34:23.375 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.375 INFO [stderr] 
Dec 12 19:34:23.375 INFO [stderr] warning: unused imports: `Infinite`, `serialize`
Dec 12 19:34:23.375 INFO [stderr]   --> src/bin/main.rs:24:15
Dec 12 19:34:23.375 INFO [stderr]    |
Dec 12 19:34:23.375 INFO [stderr] 24 | use bincode::{serialize, deserialize, Infinite};
Dec 12 19:34:23.375 INFO [stderr]    |               ^^^^^^^^^               ^^^^^^^^
Dec 12 19:34:23.375 INFO [stderr] 
Dec 12 19:34:23.375 INFO [stderr] warning: unused import: `TcpStream`
Dec 12 19:34:23.375 INFO [stderr]  --> src/bin/nameserver.rs:1:29
Dec 12 19:34:23.375 INFO [stderr]   |
Dec 12 19:34:23.375 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream, SocketAddr};
Dec 12 19:34:23.375 INFO [stderr]   |                             ^^^^^^^^^
Dec 12 19:34:23.375 INFO [stderr]   |
Dec 12 19:34:23.375 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 19:34:23.375 INFO [stderr] 
Dec 12 19:34:23.375 INFO [stderr] warning: unused import: `std::net::ToSocketAddrs`
Dec 12 19:34:23.375 INFO [stderr]  --> src/bin/nameserver.rs:7:5
Dec 12 19:34:23.375 INFO [stderr]   |
Dec 12 19:34:23.376 INFO [stderr] 7 | use std::net::ToSocketAddrs;
Dec 12 19:34:23.376 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.376 INFO [stderr] 
Dec 12 19:34:23.376 INFO [stderr] warning: unused import: `ClientMessage`
Dec 12 19:34:23.376 INFO [stderr]   --> src/bin/nameserver.rs:12:30
Dec 12 19:34:23.376 INFO [stderr]    |
Dec 12 19:34:23.376 INFO [stderr] 12 | use naivechain_rs::message::{ClientMessage, ClientToNameserverMessage, NameserverToClientMessage};
Dec 12 19:34:23.376 INFO [stderr]    |                              ^^^^^^^^^^^^^
Dec 12 19:34:23.376 INFO [stderr] 
Dec 12 19:34:23.412 INFO [stderr] warning: unused import: `std::io::Read`
Dec 12 19:34:23.412 INFO [stderr]  --> src/bin/nameserver.rs:3:5
Dec 12 19:34:23.412 INFO [stderr]   |
Dec 12 19:34:23.412 INFO [stderr] 3 | use std::io::Read;
Dec 12 19:34:23.412 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 19:34:23.413 INFO [stderr] 
Dec 12 19:34:23.490 INFO [stderr] warning: unreachable pattern
Dec 12 19:34:23.490 INFO [stderr]    --> src/bin/main.rs:315:21
Dec 12 19:34:23.490 INFO [stderr]     |
Dec 12 19:34:23.490 INFO [stderr] 315 |                     Ok(_) => {println!("Unhandled command");},
Dec 12 19:34:23.490 INFO [stderr]     |                     ^^^^^
Dec 12 19:34:23.490 INFO [stderr]     |
Dec 12 19:34:23.490 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 12 19:34:23.490 INFO [stderr] 
Dec 12 19:34:23.564 INFO [stderr] warning: variable does not need to be mutable
Dec 12 19:34:23.564 INFO [stderr]    --> src/bin/main.rs:188:9
Dec 12 19:34:23.564 INFO [stderr]     |
Dec 12 19:34:23.564 INFO [stderr] 188 |     let mut nameserver_stream = TcpStream::connect(nameserver_str).expect("Couldn't connet to nameserver");
Dec 12 19:34:23.564 INFO [stderr]     |         ----^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.564 INFO [stderr]     |         |
Dec 12 19:34:23.564 INFO [stderr]     |         help: remove this `mut`
Dec 12 19:34:23.564 INFO [stderr]     |
Dec 12 19:34:23.564 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 19:34:23.564 INFO [stderr] 
Dec 12 19:34:23.564 INFO [stderr] warning: variable does not need to be mutable
Dec 12 19:34:23.564 INFO [stderr]    --> src/bin/main.rs:206:9
Dec 12 19:34:23.564 INFO [stderr]     |
Dec 12 19:34:23.564 INFO [stderr] 206 |     let mut peers: Arc<Mutex<Vec<Arc<Mutex<Connection>>>>> = Arc::new(Mutex::new(Vec::new()));
Dec 12 19:34:23.564 INFO [stderr]     |         ----^^^^^
Dec 12 19:34:23.564 INFO [stderr]     |         |
Dec 12 19:34:23.564 INFO [stderr]     |         help: remove this `mut`
Dec 12 19:34:23.564 INFO [stderr] 
Dec 12 19:34:23.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:23.568 INFO [stderr]   --> src/bin/main.rs:76:29
Dec 12 19:34:23.568 INFO [stderr]    |
Dec 12 19:34:23.568 INFO [stderr] 76 |                             connection.write_message(&ClientMessage::Chain(chain.clone()));
Dec 12 19:34:23.568 INFO [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.568 INFO [stderr]    |
Dec 12 19:34:23.568 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 19:34:23.568 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:23.568 INFO [stderr] 
Dec 12 19:34:23.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:23.568 INFO [stderr]   --> src/bin/main.rs:95:33
Dec 12 19:34:23.568 INFO [stderr]    |
Dec 12 19:34:23.568 INFO [stderr] 95 |                                 connection.write_message(&ClientMessage::QueryChain);
Dec 12 19:34:23.568 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.568 INFO [stderr]    |
Dec 12 19:34:23.568 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:23.568 INFO [stderr] 
Dec 12 19:34:23.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:23.568 INFO [stderr]    --> src/bin/main.rs:212:5
Dec 12 19:34:23.568 INFO [stderr]     |
Dec 12 19:34:23.568 INFO [stderr] 212 |     nameserver_connection.write_message(&ClientToNameserverMessage::Query);
Dec 12 19:34:23.568 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.568 INFO [stderr]     |
Dec 12 19:34:23.568 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:23.568 INFO [stderr] 
Dec 12 19:34:23.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:23.568 INFO [stderr]    --> src/bin/main.rs:268:5
Dec 12 19:34:23.568 INFO [stderr]     |
Dec 12 19:34:23.568 INFO [stderr] 268 |     nameserver_connection.write_message(&ClientToNameserverMessage::Inform(my_addr.port()));
Dec 12 19:34:23.568 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.568 INFO [stderr]     |
Dec 12 19:34:23.568 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:23.568 INFO [stderr] 
Dec 12 19:34:23.568 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:23.568 INFO [stderr]    --> src/bin/main.rs:291:33
Dec 12 19:34:23.568 INFO [stderr]     |
Dec 12 19:34:23.568 INFO [stderr] 291 |                                 peer.write_message(&ClientMessage::NewBlock(new_block.clone()));
Dec 12 19:34:23.568 INFO [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.568 INFO [stderr]     |
Dec 12 19:34:23.568 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:23.569 INFO [stderr] 
Dec 12 19:34:23.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:23.569 INFO [stderr]    --> src/bin/main.rs:357:5
Dec 12 19:34:23.569 INFO [stderr]     |
Dec 12 19:34:23.569 INFO [stderr] 357 |     repl_thread.join();
Dec 12 19:34:23.569 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.569 INFO [stderr]     |
Dec 12 19:34:23.569 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:23.569 INFO [stderr] 
Dec 12 19:34:23.569 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:34:23.569 INFO [stderr]    --> src/bin/main.rs:358:5
Dec 12 19:34:23.569 INFO [stderr]     |
Dec 12 19:34:23.569 INFO [stderr] 358 |     listener_thread.join();
Dec 12 19:34:23.569 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.569 INFO [stderr]     |
Dec 12 19:34:23.569 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:34:23.569 INFO [stderr] 
Dec 12 19:34:23.757 INFO [stderr] warning: variable does not need to be mutable
Dec 12 19:34:23.757 INFO [stderr]    --> src/block.rs:120:9
Dec 12 19:34:23.757 INFO [stderr]     |
Dec 12 19:34:23.757 INFO [stderr] 120 |     let mut buf = &mut [0; 8];
Dec 12 19:34:23.757 INFO [stderr]     |         ----^^^
Dec 12 19:34:23.759 INFO [stderr]     |         |
Dec 12 19:34:23.759 INFO [stderr]     |         help: remove this `mut`
Dec 12 19:34:23.759 INFO [stderr]     |
Dec 12 19:34:23.759 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 19:34:23.759 INFO [stderr] 
Dec 12 19:34:23.759 INFO [stderr] warning: field is never used: `next_message_size`
Dec 12 19:34:23.759 INFO [stderr]   --> src/connection.rs:11:5
Dec 12 19:34:23.759 INFO [stderr]    |
Dec 12 19:34:23.759 INFO [stderr] 11 |     next_message_size: Option<u64>,
Dec 12 19:34:23.759 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:34:23.759 INFO [stderr]    |
Dec 12 19:34:23.759 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 19:34:23.759 INFO [stderr] 
Dec 12 19:34:24.132 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
Dec 12 19:34:24.132 INFO [stderr] su: No module specific data is present
Dec 12 19:34:24.439 INFO running `"docker" "inspect" "fc6d36994375e71d1e3f78b25da9f3a891f55777bc7261f21967f33b2ca22dc2"`
Dec 12 19:34:24.589 INFO running `"docker" "rm" "-f" "fc6d36994375e71d1e3f78b25da9f3a891f55777bc7261f21967f33b2ca22dc2"`
Dec 12 19:34:24.658 INFO [stdout] fc6d36994375e71d1e3f78b25da9f3a891f55777bc7261f21967f33b2ca22dc2
Dec 12 19:34:24.661 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-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"`
Dec 12 19:34:24.878 INFO [stdout] 543eb5e490bed200a83ddffbf344d3aff96a81092f3f1b76dcc3f8eb7ac0961d
Dec 12 19:34:24.880 INFO running `"docker" "start" "-a" "543eb5e490bed200a83ddffbf344d3aff96a81092f3f1b76dcc3f8eb7ac0961d"`
Dec 12 19:34:25.284 INFO [stderr] usermod: no changes
Dec 12 19:34:25.342 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 12 19:34:25.344 INFO [stderr]      Running /target/debug/deps/naivechain_rs-d269c73f58947b7d
Dec 12 19:34:25.345 INFO [stdout] 
Dec 12 19:34:25.345 INFO [stdout] running 0 tests
Dec 12 19:34:25.345 INFO [stdout] 
Dec 12 19:34:25.346 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 19:34:25.346 INFO [stdout] 
Dec 12 19:34:25.346 INFO [stderr]      Running /target/debug/deps/main-667865c671a46048
Dec 12 19:34:25.347 INFO [stdout] 
Dec 12 19:34:25.347 INFO [stdout] running 0 tests
Dec 12 19:34:25.347 INFO [stdout] 
Dec 12 19:34:25.347 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 19:34:25.347 INFO [stdout] 
Dec 12 19:34:25.347 INFO [stderr]      Running /target/debug/deps/nameserver-9391adf5e6f0b7c6
Dec 12 19:34:25.349 INFO [stdout] 
Dec 12 19:34:25.349 INFO [stdout] running 0 tests
Dec 12 19:34:25.349 INFO [stdout] 
Dec 12 19:34:25.349 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 19:34:25.349 INFO [stdout] 
Dec 12 19:34:25.349 INFO [stderr]    Doc-tests naivechain-rs
Dec 12 19:34:25.456 INFO [stdout] 
Dec 12 19:34:25.456 INFO [stdout] running 0 tests
Dec 12 19:34:25.456 INFO [stdout] 
Dec 12 19:34:25.456 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 19:34:25.456 INFO [stdout] 
Dec 12 19:34:25.463 INFO [stderr] su: No module specific data is present
Dec 12 19:34:25.955 INFO running `"docker" "inspect" "543eb5e490bed200a83ddffbf344d3aff96a81092f3f1b76dcc3f8eb7ac0961d"`
Dec 12 19:34:26.203 INFO running `"docker" "rm" "-f" "543eb5e490bed200a83ddffbf344d3aff96a81092f3f1b76dcc3f8eb7ac0961d"`
Dec 12 19:34:26.474 INFO [stdout] 543eb5e490bed200a83ddffbf344d3aff96a81092f3f1b76dcc3f8eb7ac0961d