Dec 18 00:04:57.167 INFO checking fredrikpe/less2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 00:04:57.167 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/fredrikpe/less2:/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 00:04:57.864 INFO [stdout] adef6ae399b7ad4cd0461bcd62c2beb391801d1f1b40946ebdbbf1a4a7417727
Dec 18 00:04:57.870 INFO running `"docker" "start" "-a" "adef6ae399b7ad4cd0461bcd62c2beb391801d1f1b40946ebdbbf1a4a7417727"`
Dec 18 00:04:59.138 INFO [stderr]     Checking bytecount v0.3.2
Dec 18 00:04:59.139 INFO [stderr]     Checking encoding_rs_io v0.1.3
Dec 18 00:04:59.140 INFO [stderr]     Checking grep-matcher v0.1.1
Dec 18 00:04:59.140 INFO [stderr]     Checking grep-cli v0.1.1
Dec 18 00:04:59.793 INFO [stderr]     Checking grep-searcher v0.1.1
Dec 18 00:04:59.793 INFO [stderr]     Checking grep-regex v0.1.1
Dec 18 00:05:00.730 INFO [stderr]     Checking grep-printer v0.1.1
Dec 18 00:05:02.109 INFO [stderr]     Checking grep v0.2.3
Dec 18 00:05:03.689 INFO [stderr]     Checking less2 v0.1.0 (/opt/crater/workdir)
Dec 18 00:05:04.437 INFO [stderr] warning: unused imports: `Read`, `Seek`
Dec 18 00:05:04.437 INFO [stderr]  --> src/commands.rs:2:15
Dec 18 00:05:04.437 INFO [stderr]   |
Dec 18 00:05:04.437 INFO [stderr] 2 | use std::io::{Seek, Read, Error, ErrorKind};
Dec 18 00:05:04.437 INFO [stderr]   |               ^^^^  ^^^^
Dec 18 00:05:04.437 INFO [stderr]   |
Dec 18 00:05:04.437 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 00:05:04.437 INFO [stderr] 
Dec 18 00:05:04.437 INFO [stderr] warning: unused import: `std::io`
Dec 18 00:05:04.437 INFO [stderr]  --> src/searcher.rs:3:5
Dec 18 00:05:04.437 INFO [stderr]   |
Dec 18 00:05:04.437 INFO [stderr] 3 | use std::io;
Dec 18 00:05:04.437 INFO [stderr]   |     ^^^^^^^
Dec 18 00:05:04.437 INFO [stderr] 
Dec 18 00:05:04.437 INFO [stderr] warning: unused imports: `SinkMatch`, `Sink`
Dec 18 00:05:04.437 INFO [stderr]  --> src/searcher.rs:6:32
Dec 18 00:05:04.437 INFO [stderr]   |
Dec 18 00:05:04.437 INFO [stderr] 6 | use grep::searcher::{Searcher, Sink, SinkMatch};
Dec 18 00:05:04.437 INFO [stderr]   |                                ^^^^  ^^^^^^^^^
Dec 18 00:05:04.437 INFO [stderr] 
Dec 18 00:05:04.437 INFO [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
Dec 18 00:05:04.438 INFO [stderr]  --> src/string_util.rs:2:5
Dec 18 00:05:04.438 INFO [stderr]   |
Dec 18 00:05:04.438 INFO [stderr] 2 | use unicode_segmentation::GraphemeCursor;
Dec 18 00:05:04.438 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.438 INFO [stderr] 
Dec 18 00:05:04.438 INFO [stderr] warning: unused import: `std::str`
Dec 18 00:05:04.438 INFO [stderr]  --> src/valid_reader.rs:3:5
Dec 18 00:05:04.438 INFO [stderr]   |
Dec 18 00:05:04.438 INFO [stderr] 3 | use std::str;
Dec 18 00:05:04.438 INFO [stderr]   |     ^^^^^^^^
Dec 18 00:05:04.438 INFO [stderr] 
Dec 18 00:05:04.438 INFO [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
Dec 18 00:05:04.438 INFO [stderr]  --> src/valid_reader.rs:5:5
Dec 18 00:05:04.438 INFO [stderr]   |
Dec 18 00:05:04.438 INFO [stderr] 5 | use unicode_segmentation::GraphemeCursor;
Dec 18 00:05:04.438 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.438 INFO [stderr] 
Dec 18 00:05:04.468 INFO [stderr] warning: unused imports: `Read`, `Seek`
Dec 18 00:05:04.468 INFO [stderr]  --> src/commands.rs:2:15
Dec 18 00:05:04.469 INFO [stderr]   |
Dec 18 00:05:04.469 INFO [stderr] 2 | use std::io::{Seek, Read, Error, ErrorKind};
Dec 18 00:05:04.469 INFO [stderr]   |               ^^^^  ^^^^
Dec 18 00:05:04.469 INFO [stderr]   |
Dec 18 00:05:04.469 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 00:05:04.469 INFO [stderr] 
Dec 18 00:05:04.469 INFO [stderr] warning: unused import: `std::io`
Dec 18 00:05:04.469 INFO [stderr]  --> src/searcher.rs:3:5
Dec 18 00:05:04.469 INFO [stderr]   |
Dec 18 00:05:04.469 INFO [stderr] 3 | use std::io;
Dec 18 00:05:04.469 INFO [stderr]   |     ^^^^^^^
Dec 18 00:05:04.469 INFO [stderr] 
Dec 18 00:05:04.469 INFO [stderr] warning: unused imports: `SinkMatch`, `Sink`
Dec 18 00:05:04.469 INFO [stderr]  --> src/searcher.rs:6:32
Dec 18 00:05:04.469 INFO [stderr]   |
Dec 18 00:05:04.469 INFO [stderr] 6 | use grep::searcher::{Searcher, Sink, SinkMatch};
Dec 18 00:05:04.469 INFO [stderr]   |                                ^^^^  ^^^^^^^^^
Dec 18 00:05:04.469 INFO [stderr] 
Dec 18 00:05:04.469 INFO [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
Dec 18 00:05:04.469 INFO [stderr]  --> src/string_util.rs:2:5
Dec 18 00:05:04.469 INFO [stderr]   |
Dec 18 00:05:04.469 INFO [stderr] 2 | use unicode_segmentation::GraphemeCursor;
Dec 18 00:05:04.469 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.469 INFO [stderr] 
Dec 18 00:05:04.470 INFO [stderr] warning: unused import: `std::str`
Dec 18 00:05:04.470 INFO [stderr]  --> src/valid_reader.rs:3:5
Dec 18 00:05:04.470 INFO [stderr]   |
Dec 18 00:05:04.470 INFO [stderr] 3 | use std::str;
Dec 18 00:05:04.470 INFO [stderr]   |     ^^^^^^^^
Dec 18 00:05:04.470 INFO [stderr] 
Dec 18 00:05:04.470 INFO [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
Dec 18 00:05:04.470 INFO [stderr]  --> src/valid_reader.rs:5:5
Dec 18 00:05:04.470 INFO [stderr]   |
Dec 18 00:05:04.470 INFO [stderr] 5 | use unicode_segmentation::GraphemeCursor;
Dec 18 00:05:04.470 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.470 INFO [stderr] 
Dec 18 00:05:04.815 INFO [stderr] warning: unused variable: `e`
Dec 18 00:05:04.816 INFO [stderr]   --> src/utf8_validation.rs:15:56
Dec 18 00:05:04.816 INFO [stderr]    |
Dec 18 00:05:04.816 INFO [stderr] 15 |             Err(Utf8Error { valid_up_to: v, error_len: e }) => {
Dec 18 00:05:04.826 INFO [stderr]    |                                                        ^ help: consider using `_e` instead
Dec 18 00:05:04.827 INFO [stderr]    |
Dec 18 00:05:04.827 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 00:05:04.827 INFO [stderr] 
Dec 18 00:05:04.831 INFO [stderr] warning: unused variable: `new_pos`
Dec 18 00:05:04.831 INFO [stderr]    --> src/file_buffer.rs:120:13
Dec 18 00:05:04.831 INFO [stderr]     |
Dec 18 00:05:04.831 INFO [stderr] 120 |         let new_pos = self.seek(SeekFrom::Current(-(size as i64)))?;
Dec 18 00:05:04.832 INFO [stderr]     |             ^^^^^^^ help: consider using `_new_pos` instead
Dec 18 00:05:04.832 INFO [stderr] 
Dec 18 00:05:04.868 INFO [stderr] warning: unused variable: `e`
Dec 18 00:05:04.868 INFO [stderr]   --> src/utf8_validation.rs:15:56
Dec 18 00:05:04.868 INFO [stderr]    |
Dec 18 00:05:04.868 INFO [stderr] 15 |             Err(Utf8Error { valid_up_to: v, error_len: e }) => {
Dec 18 00:05:04.868 INFO [stderr]    |                                                        ^ help: consider using `_e` instead
Dec 18 00:05:04.868 INFO [stderr]    |
Dec 18 00:05:04.868 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 00:05:04.868 INFO [stderr] 
Dec 18 00:05:04.868 INFO [stderr] warning: unused variable: `new_pos`
Dec 18 00:05:04.868 INFO [stderr]    --> src/file_buffer.rs:120:13
Dec 18 00:05:04.868 INFO [stderr]     |
Dec 18 00:05:04.868 INFO [stderr] 120 |         let new_pos = self.seek(SeekFrom::Current(-(size as i64)))?;
Dec 18 00:05:04.868 INFO [stderr]     |             ^^^^^^^ help: consider using `_new_pos` instead
Dec 18 00:05:04.868 INFO [stderr] 
Dec 18 00:05:04.898 INFO [stderr] warning: struct is never constructed: `NormalMode`
Dec 18 00:05:04.898 INFO [stderr]    --> src/commands.rs:253:1
Dec 18 00:05:04.898 INFO [stderr]     |
Dec 18 00:05:04.898 INFO [stderr] 253 | pub struct NormalMode {
Dec 18 00:05:04.898 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.898 INFO [stderr]     |
Dec 18 00:05:04.898 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 00:05:04.898 INFO [stderr] 
Dec 18 00:05:04.898 INFO [stderr] warning: function is never used: `nth_grapheme_offset`
Dec 18 00:05:04.898 INFO [stderr]  --> src/string_util.rs:9:1
Dec 18 00:05:04.898 INFO [stderr]   |
Dec 18 00:05:04.899 INFO [stderr] 9 | pub fn nth_grapheme_offset(buf: &str, n: usize) -> Option<usize> {
Dec 18 00:05:04.899 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.899 INFO [stderr] 
Dec 18 00:05:04.899 INFO [stderr] warning: function is never used: `last_newline_offset`
Dec 18 00:05:04.899 INFO [stderr]   --> src/string_util.rs:37:1
Dec 18 00:05:04.899 INFO [stderr]    |
Dec 18 00:05:04.899 INFO [stderr] 37 | pub fn last_newline_offset(buf: &str) -> Option<usize> {
Dec 18 00:05:04.899 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.899 INFO [stderr] 
Dec 18 00:05:04.899 INFO [stderr] warning: function is never used: `snd_last_newline_wrapped`
Dec 18 00:05:04.899 INFO [stderr]   --> src/string_util.rs:67:1
Dec 18 00:05:04.899 INFO [stderr]    |
Dec 18 00:05:04.899 INFO [stderr] 67 | pub fn snd_last_newline_wrapped(buf: &str, screen_width: usize) -> usize {
Dec 18 00:05:04.899 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.899 INFO [stderr] 
Dec 18 00:05:04.899 INFO [stderr] warning: function is never used: `utf8_char_width`
Dec 18 00:05:04.899 INFO [stderr]    --> src/utf8_validation.rs:190:1
Dec 18 00:05:04.899 INFO [stderr]     |
Dec 18 00:05:04.899 INFO [stderr] 190 | pub fn utf8_char_width(b: u8) -> usize {
Dec 18 00:05:04.899 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:04.899 INFO [stderr] 
Dec 18 00:05:05.004 INFO [stderr] warning: struct is never constructed: `NormalMode`
Dec 18 00:05:05.004 INFO [stderr]    --> src/commands.rs:253:1
Dec 18 00:05:05.004 INFO [stderr]     |
Dec 18 00:05:05.004 INFO [stderr] 253 | pub struct NormalMode {
Dec 18 00:05:05.004 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:05.004 INFO [stderr]     |
Dec 18 00:05:05.004 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 00:05:05.004 INFO [stderr] 
Dec 18 00:05:05.004 INFO [stderr] warning: function is never used: `utf8_char_width`
Dec 18 00:05:05.004 INFO [stderr]    --> src/utf8_validation.rs:190:1
Dec 18 00:05:05.004 INFO [stderr]     |
Dec 18 00:05:05.004 INFO [stderr] 190 | pub fn utf8_char_width(b: u8) -> usize {
Dec 18 00:05:05.004 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:05:05.004 INFO [stderr] 
Dec 18 00:05:05.060 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.05s
Dec 18 00:05:05.490 INFO running `"docker" "inspect" "adef6ae399b7ad4cd0461bcd62c2beb391801d1f1b40946ebdbbf1a4a7417727"`
Dec 18 00:05:05.652 INFO running `"docker" "rm" "-f" "adef6ae399b7ad4cd0461bcd62c2beb391801d1f1b40946ebdbbf1a4a7417727"`
Dec 18 00:05:05.750 INFO [stdout] adef6ae399b7ad4cd0461bcd62c2beb391801d1f1b40946ebdbbf1a4a7417727