Oct 12 16:56:03.060 INFO checking muranoya/CubaLibre against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 16:56:03.060 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 16:56:03.404 INFO blam! 99f3a7d1e93380b1e0c43bbf5a16557c863477938c57015c18c9cb4a6bdcda3a
Oct 12 16:56:03.406 INFO running `"docker" "start" "-a" "99f3a7d1e93380b1e0c43bbf5a16557c863477938c57015c18c9cb4a6bdcda3a"`
Oct 12 16:56:04.712 INFO kablam! usermod: no changes
Oct 12 16:56:04.804 INFO kablam!     Checking cuba_libre v0.0.1 (/source)
Oct 12 16:56:05.246 INFO kablam! warning: unused import: `Shutdown`
Oct 12 16:56:05.246 INFO kablam!  --> src/main.rs:2:40
Oct 12 16:56:05.246 INFO kablam!   |
Oct 12 16:56:05.246 INFO kablam! 2 | use std::net::{TcpListener, TcpStream, Shutdown};
Oct 12 16:56:05.247 INFO kablam!   |                                        ^^^^^^^^
Oct 12 16:56:05.247 INFO kablam!   |
Oct 12 16:56:05.260 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 16:56:05.260 INFO kablam! 
Oct 12 16:56:05.374 INFO kablam! warning: unused import: `Shutdown`
Oct 12 16:56:05.375 INFO kablam!  --> src/main.rs:2:40
Oct 12 16:56:05.376 INFO kablam!   |
Oct 12 16:56:05.377 INFO kablam! 2 | use std::net::{TcpListener, TcpStream, Shutdown};
Oct 12 16:56:05.377 INFO kablam!   |                                        ^^^^^^^^
Oct 12 16:56:05.378 INFO kablam!   |
Oct 12 16:56:05.379 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 16:56:05.379 INFO kablam! 
Oct 12 16:56:05.484 INFO kablam! warning: unused variable: `args`
Oct 12 16:56:05.485 INFO kablam!    --> src/main.rs:103:16
Oct 12 16:56:05.486 INFO kablam!     |
Oct 12 16:56:05.487 INFO kablam! 103 | fn set_options(args:&mut env::Args) -> Result<RToption, String> {
Oct 12 16:56:05.487 INFO kablam!     |                ^^^^ help: consider using `_args` instead
Oct 12 16:56:05.488 INFO kablam!     |
Oct 12 16:56:05.489 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 12 16:56:05.489 INFO kablam! 
Oct 12 16:56:05.532 INFO kablam! warning: field is never used: `verbose`
Oct 12 16:56:05.533 INFO kablam!   --> src/main.rs:96:5
Oct 12 16:56:05.534 INFO kablam!    |
Oct 12 16:56:05.535 INFO kablam! 96 |     verbose:     i32,
Oct 12 16:56:05.536 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 12 16:56:05.536 INFO kablam!    |
Oct 12 16:56:05.537 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 16:56:05.538 INFO kablam! 
Oct 12 16:56:05.538 INFO kablam! warning: function is never used: `print_usage`
Oct 12 16:56:05.539 INFO kablam!   --> src/main.rs:99:1
Oct 12 16:56:05.540 INFO kablam!    |
Oct 12 16:56:05.540 INFO kablam! 99 | fn print_usage(args:&mut env::Args) {
Oct 12 16:56:05.541 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:56:05.542 INFO kablam! 
Oct 12 16:56:05.544 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 16:56:05.545 INFO kablam!    --> src/main.rs:257:21
Oct 12 16:56:05.545 INFO kablam!     |
Oct 12 16:56:05.545 INFO kablam! 257 |                     sendrecv_data(req, sock);
Oct 12 16:56:05.545 INFO kablam!     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:56:05.545 INFO kablam!     |
Oct 12 16:56:05.545 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 12 16:56:05.545 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 16:56:05.545 INFO kablam! 
Oct 12 16:56:05.670 INFO kablam! warning: unused variable: `args`
Oct 12 16:56:05.670 INFO kablam!    --> src/main.rs:103:16
Oct 12 16:56:05.670 INFO kablam!     |
Oct 12 16:56:05.670 INFO kablam! 103 | fn set_options(args:&mut env::Args) -> Result<RToption, String> {
Oct 12 16:56:05.670 INFO kablam!     |                ^^^^ help: consider using `_args` instead
Oct 12 16:56:05.670 INFO kablam!     |
Oct 12 16:56:05.670 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 12 16:56:05.670 INFO kablam! 
Oct 12 16:56:05.714 INFO kablam! warning: field is never used: `verbose`
Oct 12 16:56:05.714 INFO kablam!   --> src/main.rs:96:5
Oct 12 16:56:05.714 INFO kablam!    |
Oct 12 16:56:05.714 INFO kablam! 96 |     verbose:     i32,
Oct 12 16:56:05.714 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 12 16:56:05.714 INFO kablam!    |
Oct 12 16:56:05.714 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 16:56:05.714 INFO kablam! 
Oct 12 16:56:05.724 INFO kablam! warning: function is never used: `print_usage`
Oct 12 16:56:05.724 INFO kablam!   --> src/main.rs:99:1
Oct 12 16:56:05.724 INFO kablam!    |
Oct 12 16:56:05.724 INFO kablam! 99 | fn print_usage(args:&mut env::Args) {
Oct 12 16:56:05.724 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:56:05.724 INFO kablam! 
Oct 12 16:56:05.726 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 16:56:05.726 INFO kablam!    --> src/main.rs:257:21
Oct 12 16:56:05.726 INFO kablam!     |
Oct 12 16:56:05.726 INFO kablam! 257 |                     sendrecv_data(req, sock);
Oct 12 16:56:05.726 INFO kablam!     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 16:56:05.726 INFO kablam!     |
Oct 12 16:56:05.726 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 12 16:56:05.726 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 16:56:05.726 INFO kablam! 
Oct 12 16:56:05.781 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
Oct 12 16:56:05.786 INFO kablam! su: No module specific data is present
Oct 12 16:56:06.340 INFO running `"docker" "rm" "-f" "99f3a7d1e93380b1e0c43bbf5a16557c863477938c57015c18c9cb4a6bdcda3a"`
Oct 12 16:56:06.588 INFO blam! 99f3a7d1e93380b1e0c43bbf5a16557c863477938c57015c18c9cb4a6bdcda3a