Dec 18 13:40:02.445 INFO checking nexrs-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:40:02.445 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/nexrs/0.1.0:/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 18 13:40:02.601 INFO [stdout] 65611c83b14bbaf21e4f0cc14f73980bf14e95157c533541417be6f7c6f0a92c
Dec 18 13:40:02.603 INFO running `"docker" "start" "-a" "65611c83b14bbaf21e4f0cc14f73980bf14e95157c533541417be6f7c6f0a92c"`
Dec 18 13:40:03.699 INFO [stderr]     Checking nexrs v0.1.0 (/opt/crater/workdir)
Dec 18 13:40:04.172 INFO [stderr] warning: unused import: `std::error::Error`
Dec 18 13:40:04.172 INFO [stderr]  --> src/discovery.rs:2:5
Dec 18 13:40:04.172 INFO [stderr]   |
Dec 18 13:40:04.172 INFO [stderr] 2 | use std::error::Error;
Dec 18 13:40:04.172 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 18 13:40:04.172 INFO [stderr]   |
Dec 18 13:40:04.172 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 13:40:04.172 INFO [stderr] 
Dec 18 13:40:04.172 INFO [stderr] warning: unused import: `std::io::Result as IoResult`
Dec 18 13:40:04.172 INFO [stderr]  --> src/discovery.rs:6:5
Dec 18 13:40:04.172 INFO [stderr]   |
Dec 18 13:40:04.172 INFO [stderr] 6 | use std::io::Result as IoResult;
Dec 18 13:40:04.172 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:40:04.172 INFO [stderr] 
Dec 18 13:40:04.172 INFO [stderr] warning: unused import: `discovery::*`
Dec 18 13:40:04.172 INFO [stderr]  --> src/main.rs:4:5
Dec 18 13:40:04.172 INFO [stderr]   |
Dec 18 13:40:04.172 INFO [stderr] 4 | use discovery::*;
Dec 18 13:40:04.172 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 18 13:40:04.172 INFO [stderr] 
Dec 18 13:40:04.172 INFO [stderr] warning: unused import: `SocketAddr`
Dec 18 13:40:04.172 INFO [stderr]  --> src/main.rs:5:16
Dec 18 13:40:04.172 INFO [stderr]   |
Dec 18 13:40:04.173 INFO [stderr] 5 | use std::net::{SocketAddr};
Dec 18 13:40:04.173 INFO [stderr]   |                ^^^^^^^^^^
Dec 18 13:40:04.173 INFO [stderr] 
Dec 18 13:40:04.208 INFO [stderr] warning: unused import: `std::error::Error`
Dec 18 13:40:04.208 INFO [stderr]  --> src/discovery.rs:2:5
Dec 18 13:40:04.208 INFO [stderr]   |
Dec 18 13:40:04.208 INFO [stderr] 2 | use std::error::Error;
Dec 18 13:40:04.208 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 18 13:40:04.208 INFO [stderr]   |
Dec 18 13:40:04.208 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 13:40:04.208 INFO [stderr] 
Dec 18 13:40:04.208 INFO [stderr] warning: unused import: `std::io::Result as IoResult`
Dec 18 13:40:04.208 INFO [stderr]  --> src/discovery.rs:6:5
Dec 18 13:40:04.208 INFO [stderr]   |
Dec 18 13:40:04.208 INFO [stderr] 6 | use std::io::Result as IoResult;
Dec 18 13:40:04.208 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:40:04.208 INFO [stderr] 
Dec 18 13:40:04.208 INFO [stderr] warning: unused import: `discovery::*`
Dec 18 13:40:04.208 INFO [stderr]  --> src/main.rs:4:5
Dec 18 13:40:04.208 INFO [stderr]   |
Dec 18 13:40:04.208 INFO [stderr] 4 | use discovery::*;
Dec 18 13:40:04.208 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 18 13:40:04.209 INFO [stderr] 
Dec 18 13:40:04.209 INFO [stderr] warning: unused import: `SocketAddr`
Dec 18 13:40:04.209 INFO [stderr]  --> src/main.rs:5:16
Dec 18 13:40:04.209 INFO [stderr]   |
Dec 18 13:40:04.209 INFO [stderr] 5 | use std::net::{SocketAddr};
Dec 18 13:40:04.209 INFO [stderr]   |                ^^^^^^^^^^
Dec 18 13:40:04.209 INFO [stderr] 
Dec 18 13:40:04.224 INFO [stderr] warning: unused variable: `buf`
Dec 18 13:40:04.224 INFO [stderr]   --> src/discovery.rs:86:17
Dec 18 13:40:04.224 INFO [stderr]    |
Dec 18 13:40:04.224 INFO [stderr] 86 |         let mut buf: [u8; 32] = [0; 32];
Dec 18 13:40:04.224 INFO [stderr]    |                 ^^^ help: consider using `_buf` instead
Dec 18 13:40:04.224 INFO [stderr]    |
Dec 18 13:40:04.224 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 13:40:04.224 INFO [stderr] 
Dec 18 13:40:04.240 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:40:04.240 INFO [stderr]   --> src/discovery.rs:16:9
Dec 18 13:40:04.240 INFO [stderr]    |
Dec 18 13:40:04.240 INFO [stderr] 16 |     let mut cmd_if = Command::new("ifconfig")
Dec 18 13:40:04.240 INFO [stderr]    |         ----^^^^^^
Dec 18 13:40:04.240 INFO [stderr]    |         |
Dec 18 13:40:04.240 INFO [stderr]    |         help: remove this `mut`
Dec 18 13:40:04.240 INFO [stderr]    |
Dec 18 13:40:04.240 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 13:40:04.240 INFO [stderr] 
Dec 18 13:40:04.240 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:40:04.240 INFO [stderr]   --> src/discovery.rs:36:9
Dec 18 13:40:04.240 INFO [stderr]    |
Dec 18 13:40:04.241 INFO [stderr] 36 |     let mut addr = addr_iter
Dec 18 13:40:04.241 INFO [stderr]    |         ----^^^^
Dec 18 13:40:04.241 INFO [stderr]    |         |
Dec 18 13:40:04.241 INFO [stderr]    |         help: remove this `mut`
Dec 18 13:40:04.241 INFO [stderr] 
Dec 18 13:40:04.241 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:40:04.241 INFO [stderr]   --> src/discovery.rs:86:13
Dec 18 13:40:04.241 INFO [stderr]    |
Dec 18 13:40:04.241 INFO [stderr] 86 |         let mut buf: [u8; 32] = [0; 32];
Dec 18 13:40:04.241 INFO [stderr]    |             ----^^^
Dec 18 13:40:04.241 INFO [stderr]    |             |
Dec 18 13:40:04.241 INFO [stderr]    |             help: remove this `mut`
Dec 18 13:40:04.241 INFO [stderr] 
Dec 18 13:40:04.241 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:40:04.241 INFO [stderr]   --> src/discovery.rs:87:9
Dec 18 13:40:04.241 INFO [stderr]    |
Dec 18 13:40:04.241 INFO [stderr] 87 |         stream.set_write_timeout(Some(Duration::new(3, 0)));
Dec 18 13:40:04.241 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:40:04.241 INFO [stderr]    |
Dec 18 13:40:04.241 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 13:40:04.241 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:40:04.241 INFO [stderr] 
Dec 18 13:40:04.241 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:40:04.241 INFO [stderr]   --> src/discovery.rs:88:9
Dec 18 13:40:04.241 INFO [stderr]    |
Dec 18 13:40:04.241 INFO [stderr] 88 |         stream.set_read_timeout(Some(Duration::new(3, 0)));
Dec 18 13:40:04.241 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:40:04.241 INFO [stderr]    |
Dec 18 13:40:04.241 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:40:04.241 INFO [stderr] 
Dec 18 13:40:04.263 INFO [stderr] warning: unused variable: `buf`
Dec 18 13:40:04.263 INFO [stderr]   --> src/discovery.rs:86:17
Dec 18 13:40:04.263 INFO [stderr]    |
Dec 18 13:40:04.263 INFO [stderr] 86 |         let mut buf: [u8; 32] = [0; 32];
Dec 18 13:40:04.263 INFO [stderr]    |                 ^^^ help: consider using `_buf` instead
Dec 18 13:40:04.263 INFO [stderr]    |
Dec 18 13:40:04.263 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 13:40:04.263 INFO [stderr] 
Dec 18 13:40:04.276 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:40:04.276 INFO [stderr]   --> src/discovery.rs:16:9
Dec 18 13:40:04.276 INFO [stderr]    |
Dec 18 13:40:04.276 INFO [stderr] 16 |     let mut cmd_if = Command::new("ifconfig")
Dec 18 13:40:04.276 INFO [stderr]    |         ----^^^^^^
Dec 18 13:40:04.276 INFO [stderr]    |         |
Dec 18 13:40:04.276 INFO [stderr]    |         help: remove this `mut`
Dec 18 13:40:04.276 INFO [stderr]    |
Dec 18 13:40:04.276 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 13:40:04.276 INFO [stderr] 
Dec 18 13:40:04.276 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:40:04.276 INFO [stderr]   --> src/discovery.rs:36:9
Dec 18 13:40:04.276 INFO [stderr]    |
Dec 18 13:40:04.276 INFO [stderr] 36 |     let mut addr = addr_iter
Dec 18 13:40:04.276 INFO [stderr]    |         ----^^^^
Dec 18 13:40:04.276 INFO [stderr]    |         |
Dec 18 13:40:04.276 INFO [stderr]    |         help: remove this `mut`
Dec 18 13:40:04.276 INFO [stderr] 
Dec 18 13:40:04.284 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:40:04.284 INFO [stderr]   --> src/discovery.rs:86:13
Dec 18 13:40:04.284 INFO [stderr]    |
Dec 18 13:40:04.284 INFO [stderr] 86 |         let mut buf: [u8; 32] = [0; 32];
Dec 18 13:40:04.284 INFO [stderr]    |             ----^^^
Dec 18 13:40:04.284 INFO [stderr]    |             |
Dec 18 13:40:04.284 INFO [stderr]    |             help: remove this `mut`
Dec 18 13:40:04.284 INFO [stderr] 
Dec 18 13:40:04.284 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:40:04.284 INFO [stderr]   --> src/discovery.rs:87:9
Dec 18 13:40:04.284 INFO [stderr]    |
Dec 18 13:40:04.284 INFO [stderr] 87 |         stream.set_write_timeout(Some(Duration::new(3, 0)));
Dec 18 13:40:04.284 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:40:04.284 INFO [stderr]    |
Dec 18 13:40:04.284 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 13:40:04.284 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:40:04.284 INFO [stderr] 
Dec 18 13:40:04.284 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:40:04.284 INFO [stderr]   --> src/discovery.rs:88:9
Dec 18 13:40:04.284 INFO [stderr]    |
Dec 18 13:40:04.284 INFO [stderr] 88 |         stream.set_read_timeout(Some(Duration::new(3, 0)));
Dec 18 13:40:04.284 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:40:04.284 INFO [stderr]    |
Dec 18 13:40:04.284 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:40:04.284 INFO [stderr] 
Dec 18 13:40:04.344 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 18 13:40:04.912 INFO running `"docker" "inspect" "65611c83b14bbaf21e4f0cc14f73980bf14e95157c533541417be6f7c6f0a92c"`
Dec 18 13:40:05.178 INFO running `"docker" "rm" "-f" "65611c83b14bbaf21e4f0cc14f73980bf14e95157c533541417be6f7c6f0a92c"`
Dec 18 13:40:05.542 INFO [stdout] 65611c83b14bbaf21e4f0cc14f73980bf14e95157c533541417be6f7c6f0a92c