Dec 17 17:35:49.589 INFO checking privatemani/basic_server against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 17:35:49.590 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/privatemani/basic_server:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 17:35:49.798 INFO [stdout] 1bd031206fc9f16355215f5599976ee68daffbc20bab54fd2ea7fb5b8b98040f
Dec 17 17:35:49.800 INFO running `"docker" "start" "-a" "1bd031206fc9f16355215f5599976ee68daffbc20bab54fd2ea7fb5b8b98040f"`
Dec 17 17:35:50.464 INFO [stderr]     Checking network_server v0.1.0 (/opt/crater/workdir)
Dec 17 17:35:50.565 INFO [stderr] warning: unused import: `TcpStream`
Dec 17 17:35:50.565 INFO [stderr]  --> src/main.rs:1:16
Dec 17 17:35:50.565 INFO [stderr]   |
Dec 17 17:35:50.566 INFO [stderr] 1 | use std::net::{TcpStream, TcpListener};
Dec 17 17:35:50.566 INFO [stderr]   |                ^^^^^^^^^
Dec 17 17:35:50.566 INFO [stderr]   |
Dec 17 17:35:50.566 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 17:35:50.566 INFO [stderr] 
Dec 17 17:35:50.566 INFO [stderr] warning: unused import: `Read`
Dec 17 17:35:50.566 INFO [stderr]  --> src/main.rs:2:22
Dec 17 17:35:50.566 INFO [stderr]   |
Dec 17 17:35:50.566 INFO [stderr] 2 | use std::io::{Write, Read};
Dec 17 17:35:50.566 INFO [stderr]   |                      ^^^^
Dec 17 17:35:50.566 INFO [stderr] 
Dec 17 17:35:50.566 INFO [stderr] warning: unused import: `std::net::Shutdown`
Dec 17 17:35:50.566 INFO [stderr]  --> src/main.rs:3:5
Dec 17 17:35:50.566 INFO [stderr]   |
Dec 17 17:35:50.566 INFO [stderr] 3 | use std::net::Shutdown;
Dec 17 17:35:50.566 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 17 17:35:50.566 INFO [stderr] 
Dec 17 17:35:50.573 INFO [stderr] warning: unused import: `TcpStream`
Dec 17 17:35:50.573 INFO [stderr]  --> src/main.rs:1:16
Dec 17 17:35:50.573 INFO [stderr]   |
Dec 17 17:35:50.573 INFO [stderr] 1 | use std::net::{TcpStream, TcpListener};
Dec 17 17:35:50.573 INFO [stderr]   |                ^^^^^^^^^
Dec 17 17:35:50.573 INFO [stderr]   |
Dec 17 17:35:50.573 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 17:35:50.573 INFO [stderr] 
Dec 17 17:35:50.573 INFO [stderr] warning: unused import: `Read`
Dec 17 17:35:50.573 INFO [stderr]  --> src/main.rs:2:22
Dec 17 17:35:50.573 INFO [stderr]   |
Dec 17 17:35:50.573 INFO [stderr] 2 | use std::io::{Write, Read};
Dec 17 17:35:50.573 INFO [stderr]   |                      ^^^^
Dec 17 17:35:50.573 INFO [stderr] 
Dec 17 17:35:50.573 INFO [stderr] warning: unused import: `std::net::Shutdown`
Dec 17 17:35:50.573 INFO [stderr]  --> src/main.rs:3:5
Dec 17 17:35:50.573 INFO [stderr]   |
Dec 17 17:35:50.573 INFO [stderr] 3 | use std::net::Shutdown;
Dec 17 17:35:50.573 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 17 17:35:50.573 INFO [stderr] 
Dec 17 17:35:50.614 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
Dec 17 17:35:50.860 INFO running `"docker" "inspect" "1bd031206fc9f16355215f5599976ee68daffbc20bab54fd2ea7fb5b8b98040f"`
Dec 17 17:35:50.971 INFO running `"docker" "rm" "-f" "1bd031206fc9f16355215f5599976ee68daffbc20bab54fd2ea7fb5b8b98040f"`
Dec 17 17:35:51.067 INFO [stdout] 1bd031206fc9f16355215f5599976ee68daffbc20bab54fd2ea7fb5b8b98040f