Dec 13 19:01:17.639 INFO testing fredrikpe/less2 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 19:01:17.639 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 19:01:18.048 INFO [stdout] d956f5a9bf9cb5ee0f9fc649d08291fc0045debb37b2099f60fcd85952e3649d
Dec 13 19:01:18.054 INFO running `"docker" "start" "-a" "d956f5a9bf9cb5ee0f9fc649d08291fc0045debb37b2099f60fcd85952e3649d"`
Dec 13 19:01:19.119 INFO [stderr] usermod: no changes
Dec 13 19:01:19.323 INFO [stderr]    Compiling encoding_rs_io v0.1.3
Dec 13 19:01:19.323 INFO [stderr]    Compiling grep-matcher v0.1.1
Dec 13 19:01:19.335 INFO [stderr]    Compiling syn v0.15.21
Dec 13 19:01:19.335 INFO [stderr]    Compiling globset v0.4.2
Dec 13 19:01:21.475 INFO [stderr]    Compiling grep-searcher v0.1.1
Dec 13 19:01:21.475 INFO [stderr]    Compiling grep-regex v0.1.1
Dec 13 19:01:24.433 INFO [stderr]    Compiling grep-cli v0.1.1
Dec 13 19:01:29.090 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 13 19:01:39.422 INFO [stderr]    Compiling grep-printer v0.1.1
Dec 13 19:01:41.763 INFO [stderr]    Compiling grep v0.2.3
Dec 13 19:01:44.353 INFO [stderr]    Compiling less2 v0.1.0 (/source)
Dec 13 19:01:45.995 INFO [stderr] warning: unused imports: `Read`, `Seek`
Dec 13 19:01:45.995 INFO [stderr]  --> src/commands.rs:2:15
Dec 13 19:01:45.995 INFO [stderr]   |
Dec 13 19:01:45.995 INFO [stderr] 2 | use std::io::{Seek, Read, Error, ErrorKind};
Dec 13 19:01:45.995 INFO [stderr]   |               ^^^^  ^^^^
Dec 13 19:01:45.995 INFO [stderr]   |
Dec 13 19:01:45.995 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 19:01:45.995 INFO [stderr] 
Dec 13 19:01:46.007 INFO [stderr] warning: unused import: `std::io`
Dec 13 19:01:46.007 INFO [stderr]  --> src/searcher.rs:3:5
Dec 13 19:01:46.008 INFO [stderr]   |
Dec 13 19:01:46.008 INFO [stderr] 3 | use std::io;
Dec 13 19:01:46.008 INFO [stderr]   |     ^^^^^^^
Dec 13 19:01:46.008 INFO [stderr] 
Dec 13 19:01:46.008 INFO [stderr] warning: unused imports: `SinkMatch`, `Sink`
Dec 13 19:01:46.008 INFO [stderr]  --> src/searcher.rs:6:32
Dec 13 19:01:46.008 INFO [stderr]   |
Dec 13 19:01:46.008 INFO [stderr] 6 | use grep::searcher::{Searcher, Sink, SinkMatch};
Dec 13 19:01:46.008 INFO [stderr]   |                                ^^^^  ^^^^^^^^^
Dec 13 19:01:46.008 INFO [stderr] 
Dec 13 19:01:46.008 INFO [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
Dec 13 19:01:46.009 INFO [stderr]  --> src/string_util.rs:2:5
Dec 13 19:01:46.009 INFO [stderr]   |
Dec 13 19:01:46.009 INFO [stderr] 2 | use unicode_segmentation::GraphemeCursor;
Dec 13 19:01:46.009 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:46.009 INFO [stderr] 
Dec 13 19:01:46.010 INFO [stderr] warning: unused import: `std::str`
Dec 13 19:01:46.010 INFO [stderr]  --> src/valid_reader.rs:3:5
Dec 13 19:01:46.010 INFO [stderr]   |
Dec 13 19:01:46.010 INFO [stderr] 3 | use std::str;
Dec 13 19:01:46.011 INFO [stderr]   |     ^^^^^^^^
Dec 13 19:01:46.011 INFO [stderr] 
Dec 13 19:01:46.011 INFO [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
Dec 13 19:01:46.011 INFO [stderr]  --> src/valid_reader.rs:5:5
Dec 13 19:01:46.011 INFO [stderr]   |
Dec 13 19:01:46.012 INFO [stderr] 5 | use unicode_segmentation::GraphemeCursor;
Dec 13 19:01:46.012 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:46.012 INFO [stderr] 
Dec 13 19:01:46.318 INFO [stderr] warning: unused variable: `e`
Dec 13 19:01:46.318 INFO [stderr]   --> src/utf8_validation.rs:15:56
Dec 13 19:01:46.318 INFO [stderr]    |
Dec 13 19:01:46.318 INFO [stderr] 15 |             Err(Utf8Error { valid_up_to: v, error_len: e }) => {
Dec 13 19:01:46.318 INFO [stderr]    |                                                        ^ help: consider using `_e` instead
Dec 13 19:01:46.318 INFO [stderr]    |
Dec 13 19:01:46.318 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 19:01:46.318 INFO [stderr] 
Dec 13 19:01:46.318 INFO [stderr] warning: unused variable: `new_pos`
Dec 13 19:01:46.318 INFO [stderr]    --> src/file_buffer.rs:120:13
Dec 13 19:01:46.318 INFO [stderr]     |
Dec 13 19:01:46.318 INFO [stderr] 120 |         let new_pos = self.seek(SeekFrom::Current(-(size as i64)))?;
Dec 13 19:01:46.318 INFO [stderr]     |             ^^^^^^^ help: consider using `_new_pos` instead
Dec 13 19:01:46.318 INFO [stderr] 
Dec 13 19:01:46.415 INFO [stderr] warning: struct is never constructed: `NormalMode`
Dec 13 19:01:46.415 INFO [stderr]    --> src/commands.rs:253:1
Dec 13 19:01:46.415 INFO [stderr]     |
Dec 13 19:01:46.415 INFO [stderr] 253 | pub struct NormalMode {
Dec 13 19:01:46.415 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:46.415 INFO [stderr]     |
Dec 13 19:01:46.415 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 13 19:01:46.415 INFO [stderr] 
Dec 13 19:01:46.415 INFO [stderr] warning: function is never used: `nth_grapheme_offset`
Dec 13 19:01:46.415 INFO [stderr]  --> src/string_util.rs:9:1
Dec 13 19:01:46.415 INFO [stderr]   |
Dec 13 19:01:46.415 INFO [stderr] 9 | pub fn nth_grapheme_offset(buf: &str, n: usize) -> Option<usize> {
Dec 13 19:01:46.415 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:46.415 INFO [stderr] 
Dec 13 19:01:46.415 INFO [stderr] warning: function is never used: `last_newline_offset`
Dec 13 19:01:46.415 INFO [stderr]   --> src/string_util.rs:37:1
Dec 13 19:01:46.415 INFO [stderr]    |
Dec 13 19:01:46.415 INFO [stderr] 37 | pub fn last_newline_offset(buf: &str) -> Option<usize> {
Dec 13 19:01:46.415 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:46.415 INFO [stderr] 
Dec 13 19:01:46.415 INFO [stderr] warning: function is never used: `snd_last_newline_wrapped`
Dec 13 19:01:46.415 INFO [stderr]   --> src/string_util.rs:67:1
Dec 13 19:01:46.415 INFO [stderr]    |
Dec 13 19:01:46.415 INFO [stderr] 67 | pub fn snd_last_newline_wrapped(buf: &str, screen_width: usize) -> usize {
Dec 13 19:01:46.416 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:46.416 INFO [stderr] 
Dec 13 19:01:46.416 INFO [stderr] warning: function is never used: `utf8_char_width`
Dec 13 19:01:46.416 INFO [stderr]    --> src/utf8_validation.rs:190:1
Dec 13 19:01:46.416 INFO [stderr]     |
Dec 13 19:01:46.416 INFO [stderr] 190 | pub fn utf8_char_width(b: u8) -> usize {
Dec 13 19:01:46.416 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:46.416 INFO [stderr] 
Dec 13 19:01:50.031 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.86s
Dec 13 19:01:50.031 INFO [stderr] su: No module specific data is present
Dec 13 19:01:50.304 INFO running `"docker" "inspect" "d956f5a9bf9cb5ee0f9fc649d08291fc0045debb37b2099f60fcd85952e3649d"`
Dec 13 19:01:50.388 INFO running `"docker" "rm" "-f" "d956f5a9bf9cb5ee0f9fc649d08291fc0045debb37b2099f60fcd85952e3649d"`
Dec 13 19:01:50.471 INFO [stdout] d956f5a9bf9cb5ee0f9fc649d08291fc0045debb37b2099f60fcd85952e3649d
Dec 13 19:01:50.473 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 19:01:50.647 INFO [stdout] 2ac5afeccbfade5ca1cf7d0a49ede3fe6a44d902e1bdb22cef9c2108c91c15a5
Dec 13 19:01:50.649 INFO running `"docker" "start" "-a" "2ac5afeccbfade5ca1cf7d0a49ede3fe6a44d902e1bdb22cef9c2108c91c15a5"`
Dec 13 19:01:51.242 INFO [stderr] usermod: no changes
Dec 13 19:01:51.347 INFO [stderr]    Compiling less2 v0.1.0 (/source)
Dec 13 19:01:53.031 INFO [stderr] warning: unused imports: `Read`, `Seek`
Dec 13 19:01:53.031 INFO [stderr]  --> src/commands.rs:2:15
Dec 13 19:01:53.031 INFO [stderr]   |
Dec 13 19:01:53.031 INFO [stderr] 2 | use std::io::{Seek, Read, Error, ErrorKind};
Dec 13 19:01:53.031 INFO [stderr]   |               ^^^^  ^^^^
Dec 13 19:01:53.031 INFO [stderr]   |
Dec 13 19:01:53.031 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 19:01:53.031 INFO [stderr] 
Dec 13 19:01:53.031 INFO [stderr] warning: unused import: `std::io`
Dec 13 19:01:53.031 INFO [stderr]  --> src/searcher.rs:3:5
Dec 13 19:01:53.031 INFO [stderr]   |
Dec 13 19:01:53.031 INFO [stderr] 3 | use std::io;
Dec 13 19:01:53.031 INFO [stderr]   |     ^^^^^^^
Dec 13 19:01:53.031 INFO [stderr] 
Dec 13 19:01:53.031 INFO [stderr] warning: unused imports: `SinkMatch`, `Sink`
Dec 13 19:01:53.031 INFO [stderr]  --> src/searcher.rs:6:32
Dec 13 19:01:53.031 INFO [stderr]   |
Dec 13 19:01:53.031 INFO [stderr] 6 | use grep::searcher::{Searcher, Sink, SinkMatch};
Dec 13 19:01:53.031 INFO [stderr]   |                                ^^^^  ^^^^^^^^^
Dec 13 19:01:53.031 INFO [stderr] 
Dec 13 19:01:53.031 INFO [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
Dec 13 19:01:53.031 INFO [stderr]  --> src/string_util.rs:2:5
Dec 13 19:01:53.031 INFO [stderr]   |
Dec 13 19:01:53.031 INFO [stderr] 2 | use unicode_segmentation::GraphemeCursor;
Dec 13 19:01:53.031 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:53.031 INFO [stderr] 
Dec 13 19:01:53.031 INFO [stderr] warning: unused import: `std::str`
Dec 13 19:01:53.031 INFO [stderr]  --> src/valid_reader.rs:3:5
Dec 13 19:01:53.031 INFO [stderr]   |
Dec 13 19:01:53.031 INFO [stderr] 3 | use std::str;
Dec 13 19:01:53.031 INFO [stderr]   |     ^^^^^^^^
Dec 13 19:01:53.031 INFO [stderr] 
Dec 13 19:01:53.031 INFO [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
Dec 13 19:01:53.031 INFO [stderr]  --> src/valid_reader.rs:5:5
Dec 13 19:01:53.031 INFO [stderr]   |
Dec 13 19:01:53.031 INFO [stderr] 5 | use unicode_segmentation::GraphemeCursor;
Dec 13 19:01:53.031 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:53.031 INFO [stderr] 
Dec 13 19:01:53.403 INFO [stderr] warning: unused variable: `e`
Dec 13 19:01:53.403 INFO [stderr]   --> src/utf8_validation.rs:15:56
Dec 13 19:01:53.403 INFO [stderr]    |
Dec 13 19:01:53.403 INFO [stderr] 15 |             Err(Utf8Error { valid_up_to: v, error_len: e }) => {
Dec 13 19:01:53.403 INFO [stderr]    |                                                        ^ help: consider using `_e` instead
Dec 13 19:01:53.403 INFO [stderr]    |
Dec 13 19:01:53.403 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 19:01:53.403 INFO [stderr] 
Dec 13 19:01:53.403 INFO [stderr] warning: unused variable: `new_pos`
Dec 13 19:01:53.403 INFO [stderr]    --> src/file_buffer.rs:120:13
Dec 13 19:01:53.403 INFO [stderr]     |
Dec 13 19:01:53.403 INFO [stderr] 120 |         let new_pos = self.seek(SeekFrom::Current(-(size as i64)))?;
Dec 13 19:01:53.403 INFO [stderr]     |             ^^^^^^^ help: consider using `_new_pos` instead
Dec 13 19:01:53.403 INFO [stderr] 
Dec 13 19:01:53.545 INFO [stderr] warning: struct is never constructed: `NormalMode`
Dec 13 19:01:53.545 INFO [stderr]    --> src/commands.rs:253:1
Dec 13 19:01:53.545 INFO [stderr]     |
Dec 13 19:01:53.545 INFO [stderr] 253 | pub struct NormalMode {
Dec 13 19:01:53.545 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:53.545 INFO [stderr]     |
Dec 13 19:01:53.545 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 13 19:01:53.545 INFO [stderr] 
Dec 13 19:01:53.545 INFO [stderr] warning: function is never used: `utf8_char_width`
Dec 13 19:01:53.545 INFO [stderr]    --> src/utf8_validation.rs:190:1
Dec 13 19:01:53.545 INFO [stderr]     |
Dec 13 19:01:53.545 INFO [stderr] 190 | pub fn utf8_char_width(b: u8) -> usize {
Dec 13 19:01:53.545 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 19:01:53.545 INFO [stderr] 
Dec 13 19:01:55.422 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
Dec 13 19:01:55.431 INFO [stderr] su: No module specific data is present
Dec 13 19:01:55.704 INFO running `"docker" "inspect" "2ac5afeccbfade5ca1cf7d0a49ede3fe6a44d902e1bdb22cef9c2108c91c15a5"`
Dec 13 19:01:55.768 INFO running `"docker" "rm" "-f" "2ac5afeccbfade5ca1cf7d0a49ede3fe6a44d902e1bdb22cef9c2108c91c15a5"`
Dec 13 19:01:55.875 INFO [stdout] 2ac5afeccbfade5ca1cf7d0a49ede3fe6a44d902e1bdb22cef9c2108c91c15a5
Dec 13 19:01:55.877 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 19:01:56.155 INFO [stdout] 21ba377cda15f7baad6746309a5ac7059f59ad9ae53a2a5d0fcc6e2cfe76f167
Dec 13 19:01:56.160 INFO running `"docker" "start" "-a" "21ba377cda15f7baad6746309a5ac7059f59ad9ae53a2a5d0fcc6e2cfe76f167"`
Dec 13 19:01:56.860 INFO [stderr] usermod: no changes
Dec 13 19:01:56.967 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
Dec 13 19:01:56.986 INFO [stderr]      Running /target/debug/deps/less2-07d4f7d8f8afba2a
Dec 13 19:01:56.986 INFO [stdout] 
Dec 13 19:01:56.986 INFO [stdout] running 14 tests
Dec 13 19:01:56.986 INFO [stdout] test string_util::tests::byte_offset_simple ... ok
Dec 13 19:01:56.986 INFO [stdout] test string_util::tests::byte_offset_strange ... ok
Dec 13 19:01:56.986 INFO [stdout] test valid_reader::tests::test_bufreader_fails_end ... ok
Dec 13 19:01:56.986 INFO [stdout] test valid_reader::tests::test_bufreader_fails_start ... ok
Dec 13 19:01:56.986 INFO [stdout] test utf8_validation::tests::test_utf8_validation ... ok
Dec 13 19:01:56.986 INFO [stdout] test string_util::tests::test_nth_newline_wrapped ... ok
Dec 13 19:01:56.986 INFO [stdout] test utf8_validation::tests::test_first_valid_pos ... ok
Dec 13 19:01:56.986 INFO [stdout] test string_util::tests::test_snd_last_newline_wrapped ... ok
Dec 13 19:01:56.989 INFO [stdout] test valid_reader::tests::test_err_at_end ... ok
Dec 13 19:01:56.989 INFO [stdout] test string_util::tests::test_last_newline_offset ... ok
Dec 13 19:01:56.989 INFO [stdout] test valid_reader::tests::test_seek_0_returns_0 ... ok
Dec 13 19:01:56.989 INFO [stdout] test valid_reader::tests::test_seek_to_end ... ok
Dec 13 19:01:56.991 INFO [stdout] test valid_reader::tests::test_valid_from_1 ... ok
Dec 13 19:01:57.053 INFO [stdout] test string_util::tests::test_nth_last_newline_wrapped ... ok
Dec 13 19:01:57.055 INFO [stdout] 
Dec 13 19:01:57.055 INFO [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 19:01:57.055 INFO [stdout] 
Dec 13 19:01:57.059 INFO [stderr] su: No module specific data is present
Dec 13 19:01:57.392 INFO running `"docker" "inspect" "21ba377cda15f7baad6746309a5ac7059f59ad9ae53a2a5d0fcc6e2cfe76f167"`
Dec 13 19:01:57.547 INFO running `"docker" "rm" "-f" "21ba377cda15f7baad6746309a5ac7059f59ad9ae53a2a5d0fcc6e2cfe76f167"`
Dec 13 19:01:57.832 INFO [stdout] 21ba377cda15f7baad6746309a5ac7059f59ad9ae53a2a5d0fcc6e2cfe76f167