Dec 19 15:21:52.600 INFO checking jbcden/csv_parser against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 15:21:52.600 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:21:52.886 INFO [stdout] 1aad481e2dc080e48d8e09befa9cf74e249eb63c23f8018dbd04bee282a2fc57
Dec 19 15:21:52.889 INFO running `"docker" "start" "-a" "1aad481e2dc080e48d8e09befa9cf74e249eb63c23f8018dbd04bee282a2fc57"`
Dec 19 15:21:53.818 INFO [stderr]     Checking csv_parser v0.1.0 (/opt/crater/workdir)
Dec 19 15:21:54.028 INFO [stderr] warning: unused import: `std::fs::File`
Dec 19 15:21:54.028 INFO [stderr]  --> src/main.rs:1:5
Dec 19 15:21:54.028 INFO [stderr]   |
Dec 19 15:21:54.028 INFO [stderr] 1 | use std::fs::File;
Dec 19 15:21:54.028 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 15:21:54.028 INFO [stderr]   |
Dec 19 15:21:54.028 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:21:54.028 INFO [stderr] 
Dec 19 15:21:54.028 INFO [stderr] warning: unused import: `std::io::Read`
Dec 19 15:21:54.028 INFO [stderr]  --> src/main.rs:2:5
Dec 19 15:21:54.028 INFO [stderr]   |
Dec 19 15:21:54.028 INFO [stderr] 2 | use std::io::Read;
Dec 19 15:21:54.028 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 15:21:54.028 INFO [stderr] 
Dec 19 15:21:54.028 INFO [stderr] warning: unused import: `std::fs::File`
Dec 19 15:21:54.028 INFO [stderr]  --> src/main.rs:1:5
Dec 19 15:21:54.028 INFO [stderr]   |
Dec 19 15:21:54.029 INFO [stderr] 1 | use std::fs::File;
Dec 19 15:21:54.029 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 15:21:54.029 INFO [stderr]   |
Dec 19 15:21:54.029 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:21:54.029 INFO [stderr] 
Dec 19 15:21:54.029 INFO [stderr] warning: unused import: `std::io::Read`
Dec 19 15:21:54.029 INFO [stderr]  --> src/main.rs:2:5
Dec 19 15:21:54.029 INFO [stderr]   |
Dec 19 15:21:54.029 INFO [stderr] 2 | use std::io::Read;
Dec 19 15:21:54.029 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 15:21:54.029 INFO [stderr] 
Dec 19 15:21:54.063 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:21:54.063 INFO [stderr]  --> src/main.rs:7:9
Dec 19 15:21:54.063 INFO [stderr]   |
Dec 19 15:21:54.063 INFO [stderr] 7 |     let mut csv = std::fs::File::open("../FINAL.csv").unwrap();
Dec 19 15:21:54.063 INFO [stderr]   |         ----^^^
Dec 19 15:21:54.063 INFO [stderr]   |         |
Dec 19 15:21:54.063 INFO [stderr]   |         help: remove this `mut`
Dec 19 15:21:54.063 INFO [stderr]   |
Dec 19 15:21:54.063 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 15:21:54.063 INFO [stderr] 
Dec 19 15:21:54.063 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:21:54.063 INFO [stderr]  --> src/main.rs:8:9
Dec 19 15:21:54.063 INFO [stderr]   |
Dec 19 15:21:54.063 INFO [stderr] 8 |     let mut buf_read = BufReader::new(&csv);
Dec 19 15:21:54.063 INFO [stderr]   |         ----^^^^^^^^
Dec 19 15:21:54.063 INFO [stderr]   |         |
Dec 19 15:21:54.063 INFO [stderr]   |         help: remove this `mut`
Dec 19 15:21:54.063 INFO [stderr] 
Dec 19 15:21:54.066 INFO [stderr] warning: function is never used: `efficient_unsafe`
Dec 19 15:21:54.066 INFO [stderr]   --> src/main.rs:34:1
Dec 19 15:21:54.066 INFO [stderr]    |
Dec 19 15:21:54.066 INFO [stderr] 34 | fn efficient_unsafe(line: Result<String, String>) -> i32 {
Dec 19 15:21:54.066 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:21:54.066 INFO [stderr]    |
Dec 19 15:21:54.066 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 15:21:54.066 INFO [stderr] 
Dec 19 15:21:54.069 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:21:54.069 INFO [stderr]  --> src/main.rs:7:9
Dec 19 15:21:54.069 INFO [stderr]   |
Dec 19 15:21:54.069 INFO [stderr] 7 |     let mut csv = std::fs::File::open("../FINAL.csv").unwrap();
Dec 19 15:21:54.069 INFO [stderr]   |         ----^^^
Dec 19 15:21:54.069 INFO [stderr]   |         |
Dec 19 15:21:54.069 INFO [stderr]   |         help: remove this `mut`
Dec 19 15:21:54.069 INFO [stderr]   |
Dec 19 15:21:54.069 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 15:21:54.069 INFO [stderr] 
Dec 19 15:21:54.069 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:21:54.069 INFO [stderr]  --> src/main.rs:8:9
Dec 19 15:21:54.069 INFO [stderr]   |
Dec 19 15:21:54.069 INFO [stderr] 8 |     let mut buf_read = BufReader::new(&csv);
Dec 19 15:21:54.069 INFO [stderr]   |         ----^^^^^^^^
Dec 19 15:21:54.069 INFO [stderr]   |         |
Dec 19 15:21:54.069 INFO [stderr]   |         help: remove this `mut`
Dec 19 15:21:54.070 INFO [stderr] 
Dec 19 15:21:54.073 INFO [stderr] warning: function is never used: `efficient_unsafe`
Dec 19 15:21:54.073 INFO [stderr]   --> src/main.rs:34:1
Dec 19 15:21:54.073 INFO [stderr]    |
Dec 19 15:21:54.073 INFO [stderr] 34 | fn efficient_unsafe(line: Result<String, String>) -> i32 {
Dec 19 15:21:54.073 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:21:54.073 INFO [stderr]    |
Dec 19 15:21:54.073 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 15:21:54.073 INFO [stderr] 
Dec 19 15:21:54.109 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
Dec 19 15:21:54.471 INFO running `"docker" "inspect" "1aad481e2dc080e48d8e09befa9cf74e249eb63c23f8018dbd04bee282a2fc57"`
Dec 19 15:21:54.540 INFO running `"docker" "rm" "-f" "1aad481e2dc080e48d8e09befa9cf74e249eb63c23f8018dbd04bee282a2fc57"`
Dec 19 15:21:54.637 INFO [stdout] 1aad481e2dc080e48d8e09befa9cf74e249eb63c23f8018dbd04bee282a2fc57