[INFO] updating cached repository fredrikpe/less2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fredrikpe/less2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fredrikpe/less2" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/fredrikpe/less2"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/fredrikpe/less2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fredrikpe/less2" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/fredrikpe/less2"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/fredrikpe/less2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7606d4916aa0f71eb915e0f9020f3356d4fac8e1
[INFO] sha for GitHub repo fredrikpe/less2: 7606d4916aa0f71eb915e0f9020f3356d4fac8e1
[INFO] validating manifest of fredrikpe/less2 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fredrikpe/less2 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fredrikpe/less2
[INFO] finished frobbing fredrikpe/less2
[INFO] frobbed toml for fredrikpe/less2 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/fredrikpe/less2/Cargo.toml
[INFO] started frobbing fredrikpe/less2
[INFO] finished frobbing fredrikpe/less2
[INFO] frobbed toml for fredrikpe/less2 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/fredrikpe/less2/Cargo.toml
[INFO] crate fredrikpe/less2 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fredrikpe/less2 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-0/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/fredrikpe/less2:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ff416dca2897d06673db534f9e2dc8f528b457daa60eae3731bfa043635da67e
[INFO] running `"docker" "start" "-a" "ff416dca2897d06673db534f9e2dc8f528b457daa60eae3731bfa043635da67e"`
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking encoding_rs_io v0.1.3
[INFO] [stderr]     Checking grep-matcher v0.1.1
[INFO] [stderr]     Checking globset v0.4.2
[INFO] [stderr]     Checking grep-searcher v0.1.1
[INFO] [stderr]     Checking grep-regex v0.1.1
[INFO] [stderr]     Checking grep-cli v0.1.1
[INFO] [stderr]     Checking grep-printer v0.1.1
[INFO] [stderr]     Checking grep v0.2.3
[INFO] [stderr]     Checking less2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Read`, `Seek`
[INFO] [stderr]  --> src/commands.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Seek, Read, Error, ErrorKind};
[INFO] [stderr]   |               ^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/searcher.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SinkMatch`, `Sink`
[INFO] [stderr]  --> src/searcher.rs:6:32
[INFO] [stderr]   |
[INFO] [stderr] 6 | use grep::searcher::{Searcher, Sink, SinkMatch};
[INFO] [stderr]   |                                ^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
[INFO] [stderr]  --> src/string_util.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use unicode_segmentation::GraphemeCursor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/valid_reader.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
[INFO] [stderr]  --> src/valid_reader.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use unicode_segmentation::GraphemeCursor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `Seek`
[INFO] [stderr]  --> src/commands.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Seek, Read, Error, ErrorKind};
[INFO] [stderr]   |               ^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/searcher.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SinkMatch`, `Sink`
[INFO] [stderr]  --> src/searcher.rs:6:32
[INFO] [stderr]   |
[INFO] [stderr] 6 | use grep::searcher::{Searcher, Sink, SinkMatch};
[INFO] [stderr]   |                                ^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
[INFO] [stderr]  --> src/string_util.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use unicode_segmentation::GraphemeCursor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/valid_reader.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `unicode_segmentation::GraphemeCursor`
[INFO] [stderr]  --> src/valid_reader.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use unicode_segmentation::GraphemeCursor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_pos`
[INFO] [stderr]    --> src/file_buffer.rs:120:13
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let new_pos = self.seek(SeekFrom::Current(-(size as i64)))?;
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_new_pos`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/utf8_validation.rs:15:56
[INFO] [stderr]    |
[INFO] [stderr] 15 |             Err(Utf8Error { valid_up_to: v, error_len: e }) => {
[INFO] [stderr]    |                                                        ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NormalMode`
[INFO] [stderr]    --> src/commands.rs:253:1
[INFO] [stderr]     |
[INFO] [stderr] 253 | pub struct NormalMode {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `nth_grapheme_offset`
[INFO] [stderr]  --> src/string_util.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn nth_grapheme_offset(buf: &str, n: usize) -> Option<usize> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `last_newline_offset`
[INFO] [stderr]   --> src/string_util.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn last_newline_offset(buf: &str) -> Option<usize> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `snd_last_newline_wrapped`
[INFO] [stderr]   --> src/string_util.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn snd_last_newline_wrapped(buf: &str, screen_width: usize) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `utf8_char_width`
[INFO] [stderr]    --> src/utf8_validation.rs:190:1
[INFO] [stderr]     |
[INFO] [stderr] 190 | pub fn utf8_char_width(b: u8) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_pos`
[INFO] [stderr]    --> src/file_buffer.rs:120:13
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let new_pos = self.seek(SeekFrom::Current(-(size as i64)))?;
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_new_pos`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/utf8_validation.rs:15:56
[INFO] [stderr]    |
[INFO] [stderr] 15 |             Err(Utf8Error { valid_up_to: v, error_len: e }) => {
[INFO] [stderr]    |                                                        ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NormalMode`
[INFO] [stderr]    --> src/commands.rs:253:1
[INFO] [stderr]     |
[INFO] [stderr] 253 | pub struct NormalMode {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `utf8_char_width`
[INFO] [stderr]    --> src/utf8_validation.rs:190:1
[INFO] [stderr]     |
[INFO] [stderr] 190 | pub fn utf8_char_width(b: u8) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.98s
[INFO] running `"docker" "inspect" "ff416dca2897d06673db534f9e2dc8f528b457daa60eae3731bfa043635da67e"`
[INFO] running `"docker" "rm" "-f" "ff416dca2897d06673db534f9e2dc8f528b457daa60eae3731bfa043635da67e"`
[INFO] [stdout] ff416dca2897d06673db534f9e2dc8f528b457daa60eae3731bfa043635da67e