Dec 19 06:05:25.765 INFO checking vishusandy/splitter against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:05:25.765 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/vishusandy/splitter:/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 06:05:26.416 INFO [stdout] 39193e61a925884a3d2dcba4d5636292c3b331164c70cbc4653e5328b0dfb400
Dec 19 06:05:26.422 INFO running `"docker" "start" "-a" "39193e61a925884a3d2dcba4d5636292c3b331164c70cbc4653e5328b0dfb400"`
Dec 19 06:05:28.034 INFO [stderr]     Checking libc v0.2.30
Dec 19 06:05:29.088 INFO [stderr]     Checking memchr v1.0.1
Dec 19 06:05:29.088 INFO [stderr]     Checking time v0.1.38
Dec 19 06:05:29.430 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 19 06:05:30.538 INFO [stderr]     Checking regex v0.2.2
Dec 19 06:05:32.677 INFO [stderr]     Checking splitter v0.1.0 (/opt/crater/workdir)
Dec 19 06:05:32.810 INFO [stderr] warning: unused import: `BufReader`
Dec 19 06:05:32.810 INFO [stderr]  --> src/main.rs:9:15
Dec 19 06:05:32.810 INFO [stderr]   |
Dec 19 06:05:32.810 INFO [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
Dec 19 06:05:32.810 INFO [stderr]   |               ^^^^^^^^^
Dec 19 06:05:32.811 INFO [stderr]   |
Dec 19 06:05:32.811 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 06:05:32.811 INFO [stderr] 
Dec 19 06:05:32.811 INFO [stderr] warning: unused import: `std::prelude::*`
Dec 19 06:05:32.811 INFO [stderr]   --> src/main.rs:11:5
Dec 19 06:05:32.811 INFO [stderr]    |
Dec 19 06:05:32.811 INFO [stderr] 11 | use std::prelude::*;
Dec 19 06:05:32.811 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 06:05:32.811 INFO [stderr] 
Dec 19 06:05:32.811 INFO [stderr] warning: unused import: `StoreFalse`
Dec 19 06:05:32.811 INFO [stderr]   --> src/main.rs:14:59
Dec 19 06:05:32.811 INFO [stderr]    |
Dec 19 06:05:32.811 INFO [stderr] 14 | use argparse::{ArgumentParser, Collect, StoreTrue, Store, StoreFalse};
Dec 19 06:05:32.811 INFO [stderr]    |                                                           ^^^^^^^^^^
Dec 19 06:05:32.811 INFO [stderr] 
Dec 19 06:05:32.811 INFO [stderr] warning: unused import: `regex::Regex`
Dec 19 06:05:32.811 INFO [stderr]   --> src/main.rs:15:5
Dec 19 06:05:32.811 INFO [stderr]    |
Dec 19 06:05:32.811 INFO [stderr] 15 | use regex::Regex;
Dec 19 06:05:32.811 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 06:05:32.811 INFO [stderr] 
Dec 19 06:05:32.824 INFO [stderr] warning: unused import: `BufReader`
Dec 19 06:05:32.824 INFO [stderr]  --> src/main.rs:9:15
Dec 19 06:05:32.824 INFO [stderr]   |
Dec 19 06:05:32.824 INFO [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
Dec 19 06:05:32.824 INFO [stderr]   |               ^^^^^^^^^
Dec 19 06:05:32.824 INFO [stderr]   |
Dec 19 06:05:32.824 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 06:05:32.824 INFO [stderr] 
Dec 19 06:05:32.825 INFO [stderr] warning: unused import: `std::prelude::*`
Dec 19 06:05:32.825 INFO [stderr]   --> src/main.rs:11:5
Dec 19 06:05:32.825 INFO [stderr]    |
Dec 19 06:05:32.825 INFO [stderr] 11 | use std::prelude::*;
Dec 19 06:05:32.825 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 06:05:32.825 INFO [stderr] 
Dec 19 06:05:32.825 INFO [stderr] warning: unused import: `StoreFalse`
Dec 19 06:05:32.825 INFO [stderr]   --> src/main.rs:14:59
Dec 19 06:05:32.826 INFO [stderr]    |
Dec 19 06:05:32.826 INFO [stderr] 14 | use argparse::{ArgumentParser, Collect, StoreTrue, Store, StoreFalse};
Dec 19 06:05:32.826 INFO [stderr]    |                                                           ^^^^^^^^^^
Dec 19 06:05:32.826 INFO [stderr] 
Dec 19 06:05:32.826 INFO [stderr] warning: unused import: `regex::Regex`
Dec 19 06:05:32.826 INFO [stderr]   --> src/main.rs:15:5
Dec 19 06:05:32.826 INFO [stderr]    |
Dec 19 06:05:32.826 INFO [stderr] 15 | use regex::Regex;
Dec 19 06:05:32.827 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 06:05:32.827 INFO [stderr] 
Dec 19 06:05:32.882 INFO [stderr] warning: unused import: `BufRead`
Dec 19 06:05:32.882 INFO [stderr]  --> src/main.rs:9:26
Dec 19 06:05:32.882 INFO [stderr]   |
Dec 19 06:05:32.882 INFO [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
Dec 19 06:05:32.882 INFO [stderr]   |                          ^^^^^^^
Dec 19 06:05:32.882 INFO [stderr] 
Dec 19 06:05:32.887 INFO [stderr] warning: unused variable: `size`
Dec 19 06:05:32.887 INFO [stderr]   --> src/main.rs:54:9
Dec 19 06:05:32.887 INFO [stderr]    |
Dec 19 06:05:32.887 INFO [stderr] 54 |     let size = f.read_to_end(&mut b);
Dec 19 06:05:32.887 INFO [stderr]    |         ^^^^ help: consider using `_size` instead
Dec 19 06:05:32.888 INFO [stderr]    |
Dec 19 06:05:32.888 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 06:05:32.888 INFO [stderr] 
Dec 19 06:05:32.888 INFO [stderr] warning: unused variable: `file_path`
Dec 19 06:05:32.888 INFO [stderr]    --> src/main.rs:137:9
Dec 19 06:05:32.888 INFO [stderr]     |
Dec 19 06:05:32.888 INFO [stderr] 137 |     let file_path = path.parent().unwrap().to_str().unwrap();
Dec 19 06:05:32.888 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_file_path` instead
Dec 19 06:05:32.888 INFO [stderr] 
Dec 19 06:05:32.902 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:05:32.902 INFO [stderr]   --> src/main.rs:62:9
Dec 19 06:05:32.902 INFO [stderr]    |
Dec 19 06:05:32.902 INFO [stderr] 62 |     let mut text = &contents[..];
Dec 19 06:05:32.902 INFO [stderr]    |         ----^^^^
Dec 19 06:05:32.902 INFO [stderr]    |         |
Dec 19 06:05:32.902 INFO [stderr]    |         help: remove this `mut`
Dec 19 06:05:32.917 INFO [stderr]    |
Dec 19 06:05:32.917 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:05:32.917 INFO [stderr] 
Dec 19 06:05:32.920 INFO [stderr] warning: function is never used: `is_sep`
Dec 19 06:05:32.920 INFO [stderr]   --> src/main.rs:18:1
Dec 19 06:05:32.920 INFO [stderr]    |
Dec 19 06:05:32.920 INFO [stderr] 18 | fn is_sep(r: &str) -> bool {
Dec 19 06:05:32.920 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:05:32.920 INFO [stderr]    |
Dec 19 06:05:32.920 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 06:05:32.920 INFO [stderr] 
Dec 19 06:05:32.936 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:05:32.936 INFO [stderr]    --> src/main.rs:178:9
Dec 19 06:05:32.936 INFO [stderr]     |
Dec 19 06:05:32.936 INFO [stderr] 178 |         o.write(chunk.as_bytes());
Dec 19 06:05:32.936 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:05:32.936 INFO [stderr] warning: unused import: `BufRead`
Dec 19 06:05:32.936 INFO [stderr]  --> src/main.rs:9:26
Dec 19 06:05:32.936 INFO [stderr]   |
Dec 19 06:05:32.936 INFO [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
Dec 19 06:05:32.936 INFO [stderr]   |                          ^^^^^^^
Dec 19 06:05:32.936 INFO [stderr] 
Dec 19 06:05:32.940 INFO [stderr]     |
Dec 19 06:05:32.940 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 06:05:32.940 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:05:32.940 INFO [stderr] 
Dec 19 06:05:32.940 INFO [stderr] warning: unused variable: `size`
Dec 19 06:05:32.940 INFO [stderr]   --> src/main.rs:54:9
Dec 19 06:05:32.940 INFO [stderr]    |
Dec 19 06:05:32.940 INFO [stderr] 54 |     let size = f.read_to_end(&mut b);
Dec 19 06:05:32.940 INFO [stderr]    |         ^^^^ help: consider using `_size` instead
Dec 19 06:05:32.940 INFO [stderr]    |
Dec 19 06:05:32.940 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 06:05:32.940 INFO [stderr] 
Dec 19 06:05:32.940 INFO [stderr] warning: unused variable: `file_path`
Dec 19 06:05:32.940 INFO [stderr]    --> src/main.rs:137:9
Dec 19 06:05:32.940 INFO [stderr]     |
Dec 19 06:05:32.940 INFO [stderr] 137 |     let file_path = path.parent().unwrap().to_str().unwrap();
Dec 19 06:05:32.940 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_file_path` instead
Dec 19 06:05:32.940 INFO [stderr] 
Dec 19 06:05:32.968 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:05:32.968 INFO [stderr]   --> src/main.rs:62:9
Dec 19 06:05:32.968 INFO [stderr]    |
Dec 19 06:05:32.968 INFO [stderr] 62 |     let mut text = &contents[..];
Dec 19 06:05:32.968 INFO [stderr]    |         ----^^^^
Dec 19 06:05:32.968 INFO [stderr]    |         |
Dec 19 06:05:32.968 INFO [stderr]    |         help: remove this `mut`
Dec 19 06:05:32.968 INFO [stderr]    |
Dec 19 06:05:32.968 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:05:32.968 INFO [stderr] 
Dec 19 06:05:32.968 INFO [stderr] warning: function is never used: `is_sep`
Dec 19 06:05:32.968 INFO [stderr]   --> src/main.rs:18:1
Dec 19 06:05:32.968 INFO [stderr]    |
Dec 19 06:05:32.968 INFO [stderr] 18 | fn is_sep(r: &str) -> bool {
Dec 19 06:05:32.968 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:05:32.968 INFO [stderr]    |
Dec 19 06:05:32.968 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 06:05:32.968 INFO [stderr] 
Dec 19 06:05:32.975 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:05:32.975 INFO [stderr]    --> src/main.rs:178:9
Dec 19 06:05:32.975 INFO [stderr]     |
Dec 19 06:05:32.975 INFO [stderr] 178 |         o.write(chunk.as_bytes());
Dec 19 06:05:32.975 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:05:32.975 INFO [stderr]     |
Dec 19 06:05:32.975 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 06:05:32.975 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:05:32.975 INFO [stderr] 
Dec 19 06:05:32.995 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.04s
Dec 19 06:05:33.774 INFO running `"docker" "inspect" "39193e61a925884a3d2dcba4d5636292c3b331164c70cbc4653e5328b0dfb400"`
Dec 19 06:05:34.116 INFO running `"docker" "rm" "-f" "39193e61a925884a3d2dcba4d5636292c3b331164c70cbc4653e5328b0dfb400"`
Dec 19 06:05:34.433 INFO [stdout] 39193e61a925884a3d2dcba4d5636292c3b331164c70cbc4653e5328b0dfb400