Dec 18 05:42:58.698 INFO checking Rep2/RS_2_lab against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:42:58.698 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/Rep2/RS_2_lab:/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 05:42:58.939 INFO [stdout] cfa8c0d5b4582d8485bd33572a0745376ea7c78a83ded6e56e1d47bf824e41cb
Dec 18 05:42:58.945 INFO running `"docker" "start" "-a" "cfa8c0d5b4582d8485bd33572a0745376ea7c78a83ded6e56e1d47bf824e41cb"`
Dec 18 05:42:59.556 INFO [stderr]     Checking rs2 v0.1.0 (/opt/crater/workdir)
Dec 18 05:42:59.690 INFO [stderr] warning: unused import: `self`
Dec 18 05:42:59.690 INFO [stderr]  --> src/nodes.rs:1:15
Dec 18 05:42:59.690 INFO [stderr]   |
Dec 18 05:42:59.690 INFO [stderr] 1 | use std::io::{self, BufReader};
Dec 18 05:42:59.690 INFO [stderr]   |               ^^^^
Dec 18 05:42:59.690 INFO [stderr]   |
Dec 18 05:42:59.690 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:42:59.690 INFO [stderr] 
Dec 18 05:42:59.690 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 05:42:59.690 INFO [stderr]  --> src/nodes.rs:3:5
Dec 18 05:42:59.690 INFO [stderr]   |
Dec 18 05:42:59.690 INFO [stderr] 3 | use std::fs::File;
Dec 18 05:42:59.690 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:42:59.690 INFO [stderr] 
Dec 18 05:42:59.735 INFO [stderr] warning: unused import: `self`
Dec 18 05:42:59.735 INFO [stderr]  --> src/nodes.rs:1:15
Dec 18 05:42:59.735 INFO [stderr]   |
Dec 18 05:42:59.735 INFO [stderr] 1 | use std::io::{self, BufReader};
Dec 18 05:42:59.735 INFO [stderr]   |               ^^^^
Dec 18 05:42:59.736 INFO [stderr]   |
Dec 18 05:42:59.736 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:42:59.736 INFO [stderr] 
Dec 18 05:42:59.736 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 05:42:59.737 INFO [stderr]  --> src/nodes.rs:3:5
Dec 18 05:42:59.737 INFO [stderr]   |
Dec 18 05:42:59.737 INFO [stderr] 3 | use std::fs::File;
Dec 18 05:42:59.737 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:42:59.737 INFO [stderr] 
Dec 18 05:42:59.737 INFO [stderr] warning: unused variable: `node`
Dec 18 05:42:59.737 INFO [stderr]   --> src/main.rs:24:6
Dec 18 05:42:59.737 INFO [stderr]    |
Dec 18 05:42:59.737 INFO [stderr] 24 |     let node = nodes::register_node();
Dec 18 05:42:59.737 INFO [stderr]    |         ^^^^ help: consider using `_node` instead
Dec 18 05:42:59.737 INFO [stderr]    |
Dec 18 05:42:59.738 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:42:59.738 INFO [stderr] 
Dec 18 05:42:59.750 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:42:59.750 INFO [stderr]   --> src/nodes.rs:16:9
Dec 18 05:42:59.750 INFO [stderr]    |
Dec 18 05:42:59.750 INFO [stderr] 16 |     let mut file_in = match OpenOptions::new().
Dec 18 05:42:59.750 INFO [stderr]    |         ----^^^^^^^
Dec 18 05:42:59.750 INFO [stderr]    |         |
Dec 18 05:42:59.750 INFO [stderr]    |         help: remove this `mut`
Dec 18 05:42:59.750 INFO [stderr]    |
Dec 18 05:42:59.751 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:42:59.751 INFO [stderr] 
Dec 18 05:42:59.751 INFO [stderr] warning: variable `readLine` should have a snake case name such as `read_line`
Dec 18 05:42:59.751 INFO [stderr]   --> src/nodes.rs:30:6
Dec 18 05:42:59.751 INFO [stderr]    |
Dec 18 05:42:59.751 INFO [stderr] 30 |     let mut readLine = String::new();
Dec 18 05:42:59.752 INFO [stderr]    |         ^^^^^^^^^^^^
Dec 18 05:42:59.752 INFO [stderr]    |
Dec 18 05:42:59.752 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 18 05:42:59.752 INFO [stderr] 
Dec 18 05:42:59.820 INFO [stderr] warning: unused variable: `node`
Dec 18 05:42:59.820 INFO [stderr]   --> src/main.rs:24:6
Dec 18 05:42:59.820 INFO [stderr]    |
Dec 18 05:42:59.820 INFO [stderr] 24 |     let node = nodes::register_node();
Dec 18 05:42:59.820 INFO [stderr]    |         ^^^^ help: consider using `_node` instead
Dec 18 05:42:59.820 INFO [stderr]    |
Dec 18 05:42:59.820 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:42:59.820 INFO [stderr] 
Dec 18 05:42:59.825 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:42:59.825 INFO [stderr]   --> src/nodes.rs:16:9
Dec 18 05:42:59.825 INFO [stderr]    |
Dec 18 05:42:59.826 INFO [stderr] 16 |     let mut file_in = match OpenOptions::new().
Dec 18 05:42:59.826 INFO [stderr]    |         ----^^^^^^^
Dec 18 05:42:59.826 INFO [stderr]    |         |
Dec 18 05:42:59.826 INFO [stderr]    |         help: remove this `mut`
Dec 18 05:42:59.826 INFO [stderr]    |
Dec 18 05:42:59.826 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:42:59.826 INFO [stderr] 
Dec 18 05:42:59.826 INFO [stderr] warning: variable `readLine` should have a snake case name such as `read_line`
Dec 18 05:42:59.826 INFO [stderr]   --> src/nodes.rs:30:6
Dec 18 05:42:59.826 INFO [stderr]    |
Dec 18 05:42:59.826 INFO [stderr] 30 |     let mut readLine = String::new();
Dec 18 05:42:59.826 INFO [stderr]    |         ^^^^^^^^^^^^
Dec 18 05:42:59.826 INFO [stderr]    |
Dec 18 05:42:59.826 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 18 05:42:59.826 INFO [stderr] 
Dec 18 05:42:59.855 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
Dec 18 05:43:00.397 INFO running `"docker" "inspect" "cfa8c0d5b4582d8485bd33572a0745376ea7c78a83ded6e56e1d47bf824e41cb"`
Dec 18 05:43:00.509 INFO running `"docker" "rm" "-f" "cfa8c0d5b4582d8485bd33572a0745376ea7c78a83ded6e56e1d47bf824e41cb"`
Dec 18 05:43:00.568 INFO [stdout] cfa8c0d5b4582d8485bd33572a0745376ea7c78a83ded6e56e1d47bf824e41cb