Nov 29 16:49:05.722 INFO checking tera3939/rustcp_client against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 16:49:05.723 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 16:49:06.225 INFO [stdout] d3c5e96ba751e763b22ce27d6692e0c441ec204b4713d0466febe535e4e3a3c4
Nov 29 16:49:06.232 INFO running `"docker" "start" "-a" "d3c5e96ba751e763b22ce27d6692e0c441ec204b4713d0466febe535e4e3a3c4"`
Nov 29 16:49:07.216 INFO [stderr] usermod: no changes
Nov 29 16:49:07.272 INFO [stderr]     Checking rustcp_client v0.1.0 (/source)
Nov 29 16:49:07.512 INFO [stderr] warning: unused variable: `buffer`
Nov 29 16:49:07.512 INFO [stderr]   --> src/main.rs:12:13
Nov 29 16:49:07.512 INFO [stderr]    |
Nov 29 16:49:07.512 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 29 16:49:07.512 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Nov 29 16:49:07.512 INFO [stderr]    |
Nov 29 16:49:07.513 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 16:49:07.513 INFO [stderr] 
Nov 29 16:49:07.513 INFO [stderr] warning: variable does not need to be mutable
Nov 29 16:49:07.513 INFO [stderr]   --> src/main.rs:12:9
Nov 29 16:49:07.513 INFO [stderr]    |
Nov 29 16:49:07.513 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 29 16:49:07.513 INFO [stderr]    |         ----^^^^^^
Nov 29 16:49:07.513 INFO [stderr]    |         |
Nov 29 16:49:07.513 INFO [stderr]    |         help: remove this `mut`
Nov 29 16:49:07.513 INFO [stderr]    |
Nov 29 16:49:07.513 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 16:49:07.513 INFO [stderr] 
Nov 29 16:49:07.524 INFO [stderr] warning: unused variable: `buffer`
Nov 29 16:49:07.524 INFO [stderr]   --> src/main.rs:12:13
Nov 29 16:49:07.524 INFO [stderr]    |
Nov 29 16:49:07.524 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 29 16:49:07.524 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Nov 29 16:49:07.524 INFO [stderr]    |
Nov 29 16:49:07.524 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 16:49:07.524 INFO [stderr] 
Nov 29 16:49:07.538 INFO [stderr] warning: variable does not need to be mutable
Nov 29 16:49:07.538 INFO [stderr]   --> src/main.rs:12:9
Nov 29 16:49:07.538 INFO [stderr]    |
Nov 29 16:49:07.538 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 29 16:49:07.538 INFO [stderr]    |         ----^^^^^^
Nov 29 16:49:07.538 INFO [stderr]    |         |
Nov 29 16:49:07.538 INFO [stderr]    |         help: remove this `mut`
Nov 29 16:49:07.538 INFO [stderr]    |
Nov 29 16:49:07.538 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 16:49:07.538 INFO [stderr] 
Nov 29 16:49:07.538 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 16:49:07.538 INFO [stderr]   --> src/main.rs:18:21
Nov 29 16:49:07.538 INFO [stderr]    |
Nov 29 16:49:07.538 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Nov 29 16:49:07.538 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:49:07.538 INFO [stderr]    |
Nov 29 16:49:07.538 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 16:49:07.538 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 16:49:07.538 INFO [stderr] 
Nov 29 16:49:07.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 16:49:07.547 INFO [stderr]   --> src/main.rs:18:21
Nov 29 16:49:07.547 INFO [stderr]    |
Nov 29 16:49:07.547 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Nov 29 16:49:07.547 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:49:07.547 INFO [stderr]    |
Nov 29 16:49:07.547 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 16:49:07.547 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 16:49:07.547 INFO [stderr] 
Nov 29 16:49:07.565 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
Nov 29 16:49:07.580 INFO [stderr] su: No module specific data is present
Nov 29 16:49:08.232 INFO running `"docker" "inspect" "d3c5e96ba751e763b22ce27d6692e0c441ec204b4713d0466febe535e4e3a3c4"`
Nov 29 16:49:08.445 INFO running `"docker" "rm" "-f" "d3c5e96ba751e763b22ce27d6692e0c441ec204b4713d0466febe535e4e3a3c4"`
Nov 29 16:49:08.619 INFO [stdout] d3c5e96ba751e763b22ce27d6692e0c441ec204b4713d0466febe535e4e3a3c4