Sep 01 13:02:33.530 INFO checking nexrs-0.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 13:02:33.530 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 13:02:33.530 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 13:02:33.697 INFO blam! 0394b1619712920d5c0070e135d23b6b279d7769462ee022c1817ab2a529a06d
Sep 01 13:02:33.700 INFO running `"docker" "start" "-a" "0394b1619712920d5c0070e135d23b6b279d7769462ee022c1817ab2a529a06d"`
Sep 01 13:02:34.357 INFO kablam!     Checking nexrs v0.1.0 (file:///source)
Sep 01 13:02:34.730 INFO kablam! warning: unused import: `std::error::Error`
Sep 01 13:02:34.730 INFO kablam!  --> src/discovery.rs:2:5
Sep 01 13:02:34.730 INFO kablam!   |
Sep 01 13:02:34.730 INFO kablam! 2 | use std::error::Error;
Sep 01 13:02:34.730 INFO kablam!   |     ^^^^^^^^^^^^^^^^^
Sep 01 13:02:34.730 INFO kablam!   |
Sep 01 13:02:34.730 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 13:02:34.730 INFO kablam! 
Sep 01 13:02:34.731 INFO kablam! warning: unused import: `std::io::Result as IoResult`
Sep 01 13:02:34.731 INFO kablam!  --> src/discovery.rs:6:5
Sep 01 13:02:34.731 INFO kablam!   |
Sep 01 13:02:34.731 INFO kablam! 6 | use std::io::Result as IoResult;
Sep 01 13:02:34.731 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 13:02:34.731 INFO kablam! 
Sep 01 13:02:34.731 INFO kablam! warning: unused import: `discovery::*`
Sep 01 13:02:34.731 INFO kablam!  --> src/main.rs:4:5
Sep 01 13:02:34.731 INFO kablam!   |
Sep 01 13:02:34.731 INFO kablam! 4 | use discovery::*;
Sep 01 13:02:34.731 INFO kablam!   |     ^^^^^^^^^^^^
Sep 01 13:02:34.731 INFO kablam! 
Sep 01 13:02:34.731 INFO kablam! warning: unused import: `SocketAddr`
Sep 01 13:02:34.731 INFO kablam!  --> src/main.rs:5:16
Sep 01 13:02:34.731 INFO kablam!   |
Sep 01 13:02:34.731 INFO kablam! 5 | use std::net::{SocketAddr};
Sep 01 13:02:34.731 INFO kablam!   |                ^^^^^^^^^^
Sep 01 13:02:34.731 INFO kablam! 
Sep 01 13:02:34.832 INFO kablam! warning: unused variable: `buf`
Sep 01 13:02:34.832 INFO kablam!   --> src/discovery.rs:86:17
Sep 01 13:02:34.832 INFO kablam!    |
Sep 01 13:02:34.832 INFO kablam! 86 |         let mut buf: [u8; 32] = [0; 32];
Sep 01 13:02:34.832 INFO kablam!    |                 ^^^ help: consider using `_buf` instead
Sep 01 13:02:34.832 INFO kablam!    |
Sep 01 13:02:34.832 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 01 13:02:34.832 INFO kablam! 
Sep 01 13:02:34.840 INFO kablam! warning: unused import: `std::error::Error`
Sep 01 13:02:34.840 INFO kablam!  --> src/discovery.rs:2:5
Sep 01 13:02:34.840 INFO kablam!   |
Sep 01 13:02:34.840 INFO kablam! 2 | use std::error::Error;
Sep 01 13:02:34.840 INFO kablam!   |     ^^^^^^^^^^^^^^^^^
Sep 01 13:02:34.840 INFO kablam!   |
Sep 01 13:02:34.840 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 13:02:34.841 INFO kablam! 
Sep 01 13:02:34.841 INFO kablam! warning: unused import: `std::io::Result as IoResult`
Sep 01 13:02:34.841 INFO kablam!  --> src/discovery.rs:6:5
Sep 01 13:02:34.841 INFO kablam!   |
Sep 01 13:02:34.841 INFO kablam! 6 | use std::io::Result as IoResult;
Sep 01 13:02:34.841 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 13:02:34.841 INFO kablam! 
Sep 01 13:02:34.841 INFO kablam! warning: unused import: `discovery::*`
Sep 01 13:02:34.841 INFO kablam!  --> src/main.rs:4:5
Sep 01 13:02:34.841 INFO kablam!   |
Sep 01 13:02:34.841 INFO kablam! 4 | use discovery::*;
Sep 01 13:02:34.841 INFO kablam!   |     ^^^^^^^^^^^^
Sep 01 13:02:34.841 INFO kablam! 
Sep 01 13:02:34.841 INFO kablam! warning: unused import: `SocketAddr`
Sep 01 13:02:34.841 INFO kablam!  --> src/main.rs:5:16
Sep 01 13:02:34.841 INFO kablam!   |
Sep 01 13:02:34.841 INFO kablam! 5 | use std::net::{SocketAddr};
Sep 01 13:02:34.841 INFO kablam!   |                ^^^^^^^^^^
Sep 01 13:02:34.841 INFO kablam! 
Sep 01 13:02:34.847 INFO kablam! warning: variable does not need to be mutable
Sep 01 13:02:34.847 INFO kablam!   --> src/discovery.rs:16:9
Sep 01 13:02:34.847 INFO kablam!    |
Sep 01 13:02:34.847 INFO kablam! 16 |     let mut cmd_if = Command::new("ifconfig")
Sep 01 13:02:34.847 INFO kablam!    |         ----^^^^^^
Sep 01 13:02:34.847 INFO kablam!    |         |
Sep 01 13:02:34.847 INFO kablam!    |         help: remove this `mut`
Sep 01 13:02:34.847 INFO kablam!    |
Sep 01 13:02:34.847 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 01 13:02:34.847 INFO kablam! 
Sep 01 13:02:34.847 INFO kablam! warning: variable does not need to be mutable
Sep 01 13:02:34.847 INFO kablam!   --> src/discovery.rs:36:9
Sep 01 13:02:34.847 INFO kablam!    |
Sep 01 13:02:34.847 INFO kablam! 36 |     let mut addr = addr_iter
Sep 01 13:02:34.847 INFO kablam!    |         ----^^^^
Sep 01 13:02:34.847 INFO kablam!    |         |
Sep 01 13:02:34.847 INFO kablam!    |         help: remove this `mut`
Sep 01 13:02:34.847 INFO kablam! 
Sep 01 13:02:34.854 INFO kablam! warning: variable does not need to be mutable
Sep 01 13:02:34.854 INFO kablam!   --> src/discovery.rs:86:13
Sep 01 13:02:34.854 INFO kablam!    |
Sep 01 13:02:34.854 INFO kablam! 86 |         let mut buf: [u8; 32] = [0; 32];
Sep 01 13:02:34.854 INFO kablam!    |             ----^^^
Sep 01 13:02:34.854 INFO kablam!    |             |
Sep 01 13:02:34.854 INFO kablam!    |             help: remove this `mut`
Sep 01 13:02:34.854 INFO kablam! 
Sep 01 13:02:34.855 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 01 13:02:34.855 INFO kablam!   --> src/discovery.rs:87:9
Sep 01 13:02:34.855 INFO kablam!    |
Sep 01 13:02:34.855 INFO kablam! 87 |         stream.set_write_timeout(Some(Duration::new(3, 0)));
Sep 01 13:02:34.855 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 13:02:34.855 INFO kablam!    |
Sep 01 13:02:34.855 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 01 13:02:34.855 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 01 13:02:34.855 INFO kablam! 
Sep 01 13:02:34.855 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 01 13:02:34.855 INFO kablam!   --> src/discovery.rs:88:9
Sep 01 13:02:34.855 INFO kablam!    |
Sep 01 13:02:34.855 INFO kablam! 88 |         stream.set_read_timeout(Some(Duration::new(3, 0)));
Sep 01 13:02:34.855 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 13:02:34.855 INFO kablam!    |
Sep 01 13:02:34.855 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 01 13:02:34.855 INFO kablam! 
Sep 01 13:02:34.964 INFO kablam! warning: unused variable: `buf`
Sep 01 13:02:34.964 INFO kablam!   --> src/discovery.rs:86:17
Sep 01 13:02:34.964 INFO kablam!    |
Sep 01 13:02:34.964 INFO kablam! 86 |         let mut buf: [u8; 32] = [0; 32];
Sep 01 13:02:34.964 INFO kablam!    |                 ^^^ help: consider using `_buf` instead
Sep 01 13:02:34.964 INFO kablam!    |
Sep 01 13:02:34.964 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 01 13:02:34.964 INFO kablam! 
Sep 01 13:02:34.977 INFO kablam! warning: variable does not need to be mutable
Sep 01 13:02:34.977 INFO kablam!   --> src/discovery.rs:16:9
Sep 01 13:02:34.977 INFO kablam!    |
Sep 01 13:02:34.977 INFO kablam! 16 |     let mut cmd_if = Command::new("ifconfig")
Sep 01 13:02:34.977 INFO kablam!    |         ----^^^^^^
Sep 01 13:02:34.977 INFO kablam!    |         |
Sep 01 13:02:34.977 INFO kablam!    |         help: remove this `mut`
Sep 01 13:02:34.978 INFO kablam!    |
Sep 01 13:02:34.978 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 01 13:02:34.978 INFO kablam! 
Sep 01 13:02:34.978 INFO kablam! warning: variable does not need to be mutable
Sep 01 13:02:34.978 INFO kablam!   --> src/discovery.rs:36:9
Sep 01 13:02:34.978 INFO kablam!    |
Sep 01 13:02:34.978 INFO kablam! 36 |     let mut addr = addr_iter
Sep 01 13:02:34.978 INFO kablam!    |         ----^^^^
Sep 01 13:02:34.978 INFO kablam!    |         |
Sep 01 13:02:34.978 INFO kablam!    |         help: remove this `mut`
Sep 01 13:02:34.978 INFO kablam! 
Sep 01 13:02:34.987 INFO kablam! warning: variable does not need to be mutable
Sep 01 13:02:34.987 INFO kablam!   --> src/discovery.rs:86:13
Sep 01 13:02:34.987 INFO kablam!    |
Sep 01 13:02:34.987 INFO kablam! 86 |         let mut buf: [u8; 32] = [0; 32];
Sep 01 13:02:34.987 INFO kablam!    |             ----^^^
Sep 01 13:02:34.987 INFO kablam!    |             |
Sep 01 13:02:34.987 INFO kablam!    |             help: remove this `mut`
Sep 01 13:02:34.987 INFO kablam! 
Sep 01 13:02:34.988 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 01 13:02:34.989 INFO kablam!   --> src/discovery.rs:87:9
Sep 01 13:02:34.989 INFO kablam!    |
Sep 01 13:02:34.989 INFO kablam! 87 |         stream.set_write_timeout(Some(Duration::new(3, 0)));
Sep 01 13:02:34.989 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 13:02:34.989 INFO kablam!    |
Sep 01 13:02:34.989 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 01 13:02:34.989 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 01 13:02:34.989 INFO kablam! 
Sep 01 13:02:34.989 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 01 13:02:34.989 INFO kablam!   --> src/discovery.rs:88:9
Sep 01 13:02:34.989 INFO kablam!    |
Sep 01 13:02:34.989 INFO kablam! 88 |         stream.set_read_timeout(Some(Duration::new(3, 0)));
Sep 01 13:02:34.989 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 13:02:34.989 INFO kablam!    |
Sep 01 13:02:34.989 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 01 13:02:34.989 INFO kablam! 
Sep 01 13:02:35.004 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Sep 01 13:02:35.006 INFO kablam! su: No module specific data is present
Sep 01 13:02:35.614 INFO running `"docker" "rm" "-f" "0394b1619712920d5c0070e135d23b6b279d7769462ee022c1817ab2a529a06d"`
Sep 01 13:02:35.693 INFO blam! 0394b1619712920d5c0070e135d23b6b279d7769462ee022c1817ab2a529a06d