Dec 17 22:30:44.373 INFO checking jbcden/csv_parser against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:30:44.373 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/jbcden/csv_parser:/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 17 22:30:44.644 INFO [stdout] a04c0ad980b7fe5e16225bb52ef9e360fb8d6a52e18b8982f7b97100ad2fe846
Dec 17 22:30:44.646 INFO running `"docker" "start" "-a" "a04c0ad980b7fe5e16225bb52ef9e360fb8d6a52e18b8982f7b97100ad2fe846"`
Dec 17 22:30:45.644 INFO [stderr]     Checking csv_parser v0.1.0 (/opt/crater/workdir)
Dec 17 22:30:45.787 INFO [stderr] warning: unused import: `std::fs::File`
Dec 17 22:30:45.787 INFO [stderr]  --> src/main.rs:1:5
Dec 17 22:30:45.787 INFO [stderr]   |
Dec 17 22:30:45.787 INFO [stderr] 1 | use std::fs::File;
Dec 17 22:30:45.787 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 22:30:45.787 INFO [stderr]   |
Dec 17 22:30:45.787 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:30:45.787 INFO [stderr] 
Dec 17 22:30:45.787 INFO [stderr] warning: unused import: `std::io::Read`
Dec 17 22:30:45.787 INFO [stderr]  --> src/main.rs:2:5
Dec 17 22:30:45.787 INFO [stderr]   |
Dec 17 22:30:45.787 INFO [stderr] 2 | use std::io::Read;
Dec 17 22:30:45.787 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 22:30:45.787 INFO [stderr] 
Dec 17 22:30:45.805 INFO [stderr] warning: unused import: `std::fs::File`
Dec 17 22:30:45.805 INFO [stderr]  --> src/main.rs:1:5
Dec 17 22:30:45.805 INFO [stderr]   |
Dec 17 22:30:45.805 INFO [stderr] 1 | use std::fs::File;
Dec 17 22:30:45.805 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 22:30:45.805 INFO [stderr]   |
Dec 17 22:30:45.805 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:30:45.805 INFO [stderr] 
Dec 17 22:30:45.806 INFO [stderr] warning: unused import: `std::io::Read`
Dec 17 22:30:45.806 INFO [stderr]  --> src/main.rs:2:5
Dec 17 22:30:45.806 INFO [stderr]   |
Dec 17 22:30:45.806 INFO [stderr] 2 | use std::io::Read;
Dec 17 22:30:45.806 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 22:30:45.806 INFO [stderr] 
Dec 17 22:30:45.815 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:30:45.815 INFO [stderr]  --> src/main.rs:7:9
Dec 17 22:30:45.815 INFO [stderr]   |
Dec 17 22:30:45.815 INFO [stderr] 7 |     let mut csv = std::fs::File::open("../FINAL.csv").unwrap();
Dec 17 22:30:45.815 INFO [stderr]   |         ----^^^
Dec 17 22:30:45.815 INFO [stderr]   |         |
Dec 17 22:30:45.815 INFO [stderr]   |         help: remove this `mut`
Dec 17 22:30:45.815 INFO [stderr]   |
Dec 17 22:30:45.815 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 17 22:30:45.815 INFO [stderr] 
Dec 17 22:30:45.815 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:30:45.816 INFO [stderr]  --> src/main.rs:8:9
Dec 17 22:30:45.816 INFO [stderr]   |
Dec 17 22:30:45.816 INFO [stderr] 8 |     let mut buf_read = BufReader::new(&csv);
Dec 17 22:30:45.816 INFO [stderr]   |         ----^^^^^^^^
Dec 17 22:30:45.816 INFO [stderr]   |         |
Dec 17 22:30:45.816 INFO [stderr]   |         help: remove this `mut`
Dec 17 22:30:45.816 INFO [stderr] 
Dec 17 22:30:45.818 INFO [stderr] warning: function is never used: `efficient_unsafe`
Dec 17 22:30:45.818 INFO [stderr]   --> src/main.rs:34:1
Dec 17 22:30:45.818 INFO [stderr]    |
Dec 17 22:30:45.818 INFO [stderr] 34 | fn efficient_unsafe(line: Result<String, String>) -> i32 {
Dec 17 22:30:45.818 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:45.818 INFO [stderr]    |
Dec 17 22:30:45.818 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 22:30:45.818 INFO [stderr] 
Dec 17 22:30:45.843 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:30:45.843 INFO [stderr]  --> src/main.rs:7:9
Dec 17 22:30:45.843 INFO [stderr]   |
Dec 17 22:30:45.843 INFO [stderr] 7 |     let mut csv = std::fs::File::open("../FINAL.csv").unwrap();
Dec 17 22:30:45.843 INFO [stderr]   |         ----^^^
Dec 17 22:30:45.843 INFO [stderr]   |         |
Dec 17 22:30:45.843 INFO [stderr]   |         help: remove this `mut`
Dec 17 22:30:45.843 INFO [stderr]   |
Dec 17 22:30:45.843 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 17 22:30:45.843 INFO [stderr] 
Dec 17 22:30:45.843 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:30:45.843 INFO [stderr]  --> src/main.rs:8:9
Dec 17 22:30:45.843 INFO [stderr]   |
Dec 17 22:30:45.843 INFO [stderr] 8 |     let mut buf_read = BufReader::new(&csv);
Dec 17 22:30:45.843 INFO [stderr]   |         ----^^^^^^^^
Dec 17 22:30:45.843 INFO [stderr]   |         |
Dec 17 22:30:45.843 INFO [stderr]   |         help: remove this `mut`
Dec 17 22:30:45.843 INFO [stderr] 
Dec 17 22:30:45.844 INFO [stderr] warning: function is never used: `efficient_unsafe`
Dec 17 22:30:45.844 INFO [stderr]   --> src/main.rs:34:1
Dec 17 22:30:45.844 INFO [stderr]    |
Dec 17 22:30:45.844 INFO [stderr] 34 | fn efficient_unsafe(line: Result<String, String>) -> i32 {
Dec 17 22:30:45.844 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:30:45.844 INFO [stderr]    |
Dec 17 22:30:45.844 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 22:30:45.844 INFO [stderr] 
Dec 17 22:30:45.860 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
Dec 17 22:30:46.125 INFO running `"docker" "inspect" "a04c0ad980b7fe5e16225bb52ef9e360fb8d6a52e18b8982f7b97100ad2fe846"`
Dec 17 22:30:46.205 INFO running `"docker" "rm" "-f" "a04c0ad980b7fe5e16225bb52ef9e360fb8d6a52e18b8982f7b97100ad2fe846"`
Dec 17 22:30:46.288 INFO [stdout] a04c0ad980b7fe5e16225bb52ef9e360fb8d6a52e18b8982f7b97100ad2fe846