Sep 14 12:39:12.990 INFO checking nexrs-0.1.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 12:39:12.990 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 12:39:12.991 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-3/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 12:39:13.162 INFO blam! af666b12836a5044ee6ad293192e55ead66835db2f6f8a36194d6dd5e1720b0d
Sep 14 12:39:13.163 INFO running `"docker" "start" "-a" "af666b12836a5044ee6ad293192e55ead66835db2f6f8a36194d6dd5e1720b0d"`
Sep 14 12:39:14.092 INFO kablam! usermod: no changes
Sep 14 12:39:14.123 INFO kablam!     Checking nexrs v0.1.0 (file:///source)
Sep 14 12:39:14.279 INFO kablam! warning: unused import: `std::error::Error`
Sep 14 12:39:14.279 INFO kablam!  --> src/discovery.rs:2:5
Sep 14 12:39:14.279 INFO kablam!   |
Sep 14 12:39:14.279 INFO kablam! 2 | use std::error::Error;
Sep 14 12:39:14.279 INFO kablam!   |     ^^^^^^^^^^^^^^^^^
Sep 14 12:39:14.279 INFO kablam!   |
Sep 14 12:39:14.279 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 12:39:14.279 INFO kablam! 
Sep 14 12:39:14.279 INFO kablam! warning: unused import: `std::io::Result as IoResult`
Sep 14 12:39:14.279 INFO kablam!  --> src/discovery.rs:6:5
Sep 14 12:39:14.279 INFO kablam!   |
Sep 14 12:39:14.279 INFO kablam! 6 | use std::io::Result as IoResult;
Sep 14 12:39:14.279 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 12:39:14.279 INFO kablam! 
Sep 14 12:39:14.279 INFO kablam! warning: unused import: `discovery::*`
Sep 14 12:39:14.279 INFO kablam!  --> src/main.rs:4:5
Sep 14 12:39:14.279 INFO kablam!   |
Sep 14 12:39:14.279 INFO kablam! 4 | use discovery::*;
Sep 14 12:39:14.279 INFO kablam!   |     ^^^^^^^^^^^^
Sep 14 12:39:14.279 INFO kablam! 
Sep 14 12:39:14.279 INFO kablam! warning: unused import: `SocketAddr`
Sep 14 12:39:14.279 INFO kablam!  --> src/main.rs:5:16
Sep 14 12:39:14.279 INFO kablam!   |
Sep 14 12:39:14.279 INFO kablam! 5 | use std::net::{SocketAddr};
Sep 14 12:39:14.279 INFO kablam!   |                ^^^^^^^^^^
Sep 14 12:39:14.279 INFO kablam! 
Sep 14 12:39:14.343 INFO kablam! warning: unused variable: `buf`
Sep 14 12:39:14.343 INFO kablam!   --> src/discovery.rs:86:17
Sep 14 12:39:14.343 INFO kablam!    |
Sep 14 12:39:14.343 INFO kablam! 86 |         let mut buf: [u8; 32] = [0; 32];
Sep 14 12:39:14.343 INFO kablam!    |                 ^^^ help: consider using `_buf` instead
Sep 14 12:39:14.343 INFO kablam!    |
Sep 14 12:39:14.343 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 14 12:39:14.343 INFO kablam! 
Sep 14 12:39:14.347 INFO kablam! warning: variable does not need to be mutable
Sep 14 12:39:14.347 INFO kablam!   --> src/discovery.rs:16:9
Sep 14 12:39:14.347 INFO kablam!    |
Sep 14 12:39:14.347 INFO kablam! 16 |     let mut cmd_if = Command::new("ifconfig")
Sep 14 12:39:14.347 INFO kablam!    |         ----^^^^^^
Sep 14 12:39:14.347 INFO kablam!    |         |
Sep 14 12:39:14.347 INFO kablam!    |         help: remove this `mut`
Sep 14 12:39:14.347 INFO kablam!    |
Sep 14 12:39:14.347 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 14 12:39:14.347 INFO kablam! 
Sep 14 12:39:14.347 INFO kablam! warning: variable does not need to be mutable
Sep 14 12:39:14.347 INFO kablam!   --> src/discovery.rs:36:9
Sep 14 12:39:14.347 INFO kablam!    |
Sep 14 12:39:14.347 INFO kablam! 36 |     let mut addr = addr_iter
Sep 14 12:39:14.347 INFO kablam!    |         ----^^^^
Sep 14 12:39:14.347 INFO kablam!    |         |
Sep 14 12:39:14.347 INFO kablam!    |         help: remove this `mut`
Sep 14 12:39:14.347 INFO kablam! 
Sep 14 12:39:14.351 INFO kablam! warning: variable does not need to be mutable
Sep 14 12:39:14.351 INFO kablam!   --> src/discovery.rs:86:13
Sep 14 12:39:14.351 INFO kablam!    |
Sep 14 12:39:14.351 INFO kablam! 86 |         let mut buf: [u8; 32] = [0; 32];
Sep 14 12:39:14.351 INFO kablam!    |             ----^^^
Sep 14 12:39:14.351 INFO kablam!    |             |
Sep 14 12:39:14.351 INFO kablam!    |             help: remove this `mut`
Sep 14 12:39:14.351 INFO kablam! 
Sep 14 12:39:14.352 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 14 12:39:14.352 INFO kablam!   --> src/discovery.rs:87:9
Sep 14 12:39:14.352 INFO kablam!    |
Sep 14 12:39:14.352 INFO kablam! 87 |         stream.set_write_timeout(Some(Duration::new(3, 0)));
Sep 14 12:39:14.352 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 12:39:14.352 INFO kablam!    |
Sep 14 12:39:14.352 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 14 12:39:14.352 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 14 12:39:14.352 INFO kablam! 
Sep 14 12:39:14.352 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 14 12:39:14.352 INFO kablam!   --> src/discovery.rs:88:9
Sep 14 12:39:14.352 INFO kablam!    |
Sep 14 12:39:14.352 INFO kablam! 88 |         stream.set_read_timeout(Some(Duration::new(3, 0)));
Sep 14 12:39:14.352 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 12:39:14.352 INFO kablam!    |
Sep 14 12:39:14.352 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 14 12:39:14.352 INFO kablam! 
Sep 14 12:39:14.354 INFO kablam! warning: unused import: `std::error::Error`
Sep 14 12:39:14.354 INFO kablam!  --> src/discovery.rs:2:5
Sep 14 12:39:14.354 INFO kablam!   |
Sep 14 12:39:14.354 INFO kablam! 2 | use std::error::Error;
Sep 14 12:39:14.354 INFO kablam!   |     ^^^^^^^^^^^^^^^^^
Sep 14 12:39:14.355 INFO kablam!   |
Sep 14 12:39:14.355 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 12:39:14.355 INFO kablam! 
Sep 14 12:39:14.355 INFO kablam! warning: unused import: `std::io::Result as IoResult`
Sep 14 12:39:14.355 INFO kablam!  --> src/discovery.rs:6:5
Sep 14 12:39:14.355 INFO kablam!   |
Sep 14 12:39:14.355 INFO kablam! 6 | use std::io::Result as IoResult;
Sep 14 12:39:14.355 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 12:39:14.355 INFO kablam! 
Sep 14 12:39:14.355 INFO kablam! warning: unused import: `discovery::*`
Sep 14 12:39:14.355 INFO kablam!  --> src/main.rs:4:5
Sep 14 12:39:14.355 INFO kablam!   |
Sep 14 12:39:14.355 INFO kablam! 4 | use discovery::*;
Sep 14 12:39:14.355 INFO kablam!   |     ^^^^^^^^^^^^
Sep 14 12:39:14.355 INFO kablam! 
Sep 14 12:39:14.355 INFO kablam! warning: unused import: `SocketAddr`
Sep 14 12:39:14.355 INFO kablam!  --> src/main.rs:5:16
Sep 14 12:39:14.355 INFO kablam!   |
Sep 14 12:39:14.355 INFO kablam! 5 | use std::net::{SocketAddr};
Sep 14 12:39:14.355 INFO kablam!   |                ^^^^^^^^^^
Sep 14 12:39:14.355 INFO kablam! 
Sep 14 12:39:14.425 INFO kablam! warning: unused variable: `buf`
Sep 14 12:39:14.425 INFO kablam!   --> src/discovery.rs:86:17
Sep 14 12:39:14.425 INFO kablam!    |
Sep 14 12:39:14.426 INFO kablam! 86 |         let mut buf: [u8; 32] = [0; 32];
Sep 14 12:39:14.426 INFO kablam!    |                 ^^^ help: consider using `_buf` instead
Sep 14 12:39:14.426 INFO kablam!    |
Sep 14 12:39:14.426 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 14 12:39:14.426 INFO kablam! 
Sep 14 12:39:14.435 INFO kablam! warning: variable does not need to be mutable
Sep 14 12:39:14.435 INFO kablam!   --> src/discovery.rs:16:9
Sep 14 12:39:14.435 INFO kablam!    |
Sep 14 12:39:14.435 INFO kablam! 16 |     let mut cmd_if = Command::new("ifconfig")
Sep 14 12:39:14.435 INFO kablam!    |         ----^^^^^^
Sep 14 12:39:14.435 INFO kablam!    |         |
Sep 14 12:39:14.435 INFO kablam!    |         help: remove this `mut`
Sep 14 12:39:14.435 INFO kablam!    |
Sep 14 12:39:14.435 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 14 12:39:14.435 INFO kablam! 
Sep 14 12:39:14.435 INFO kablam! warning: variable does not need to be mutable
Sep 14 12:39:14.435 INFO kablam!   --> src/discovery.rs:36:9
Sep 14 12:39:14.435 INFO kablam!    |
Sep 14 12:39:14.435 INFO kablam! 36 |     let mut addr = addr_iter
Sep 14 12:39:14.435 INFO kablam!    |         ----^^^^
Sep 14 12:39:14.435 INFO kablam!    |         |
Sep 14 12:39:14.435 INFO kablam!    |         help: remove this `mut`
Sep 14 12:39:14.435 INFO kablam! 
Sep 14 12:39:14.440 INFO kablam! warning: variable does not need to be mutable
Sep 14 12:39:14.440 INFO kablam!   --> src/discovery.rs:86:13
Sep 14 12:39:14.440 INFO kablam!    |
Sep 14 12:39:14.440 INFO kablam! 86 |         let mut buf: [u8; 32] = [0; 32];
Sep 14 12:39:14.440 INFO kablam!    |             ----^^^
Sep 14 12:39:14.440 INFO kablam!    |             |
Sep 14 12:39:14.440 INFO kablam!    |             help: remove this `mut`
Sep 14 12:39:14.440 INFO kablam! 
Sep 14 12:39:14.441 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 14 12:39:14.441 INFO kablam!   --> src/discovery.rs:87:9
Sep 14 12:39:14.441 INFO kablam!    |
Sep 14 12:39:14.441 INFO kablam! 87 |         stream.set_write_timeout(Some(Duration::new(3, 0)));
Sep 14 12:39:14.441 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 12:39:14.441 INFO kablam!    |
Sep 14 12:39:14.441 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 14 12:39:14.441 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 14 12:39:14.441 INFO kablam! 
Sep 14 12:39:14.441 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 14 12:39:14.441 INFO kablam!   --> src/discovery.rs:88:9
Sep 14 12:39:14.441 INFO kablam!    |
Sep 14 12:39:14.441 INFO kablam! 88 |         stream.set_read_timeout(Some(Duration::new(3, 0)));
Sep 14 12:39:14.441 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 12:39:14.441 INFO kablam!    |
Sep 14 12:39:14.441 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 14 12:39:14.441 INFO kablam! 
Sep 14 12:39:14.454 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
Sep 14 12:39:14.455 INFO kablam! su: No module specific data is present
Sep 14 12:39:15.127 INFO running `"docker" "rm" "-f" "af666b12836a5044ee6ad293192e55ead66835db2f6f8a36194d6dd5e1720b0d"`
Sep 14 12:39:15.227 INFO blam! af666b12836a5044ee6ad293192e55ead66835db2f6f8a36194d6dd5e1720b0d