[INFO] updating cached repository andysalerno/explain_rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andysalerno/explain_rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andysalerno/explain_rs" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/andysalerno/explain_rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/andysalerno/explain_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andysalerno/explain_rs" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/andysalerno/explain_rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/andysalerno/explain_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 211aa5f0405032834f15a99ad837b620b173d1e5
[INFO] sha for GitHub repo andysalerno/explain_rs: 211aa5f0405032834f15a99ad837b620b173d1e5
[INFO] validating manifest of andysalerno/explain_rs on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of andysalerno/explain_rs on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing andysalerno/explain_rs
[INFO] finished frobbing andysalerno/explain_rs
[INFO] frobbed toml for andysalerno/explain_rs written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/andysalerno/explain_rs/Cargo.toml
[INFO] started frobbing andysalerno/explain_rs
[INFO] finished frobbing andysalerno/explain_rs
[INFO] frobbed toml for andysalerno/explain_rs written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/andysalerno/explain_rs/Cargo.toml
[INFO] crate andysalerno/explain_rs has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking andysalerno/explain_rs against master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039 for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-7/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/andysalerno/explain_rs:/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" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b0c4568f0cfd865b91b45f70baf22eab757d45261fd53fb2239f6c4335c5b67a
[INFO] running `"docker" "start" "-a" "b0c4568f0cfd865b91b45f70baf22eab757d45261fd53fb2239f6c4335c5b67a"`
[INFO] [stderr]     Checking explain_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `difference`
[INFO] [stderr]    --> src/man_parse/term_writer/troff_term_writer.rs:262:13
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let difference = text_start_pos - count_whitespace;
[INFO] [stderr]     |             ^^^^^^^^^^ help: consider using `_difference` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/man_parse/troff_parser.rs:338:13
[INFO] [stderr]     |
[INFO] [stderr] 338 |         let mut pops = if let Some(tok) = decrease_arg {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Underlined`
[INFO] [stderr]   --> src/man_parse/term_writer/font_style.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Underlined,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NonWhitespace`
[INFO] [stderr]  --> src/man_parse/term_writer/line_info.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     NonWhitespace,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `disable_debug`
[INFO] [stderr]   --> src/man_parse/term_writer/troff_term_writer.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn disable_debug(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `indent`
[INFO] [stderr]   --> src/man_parse/term_writer/troff_term_writer.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn indent(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `default_indent`
[INFO] [stderr]    --> src/man_parse/term_writer/troff_term_writer.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 |     pub fn default_indent(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `difference`
[INFO] [stderr]    --> src/man_parse/term_writer/troff_term_writer.rs:262:13
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let difference = text_start_pos - count_whitespace;
[INFO] [stderr]     |             ^^^^^^^^^^ help: consider using `_difference` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/man_parse/troff_parser.rs:338:13
[INFO] [stderr]     |
[INFO] [stderr] 338 |         let mut pops = if let Some(tok) = decrease_arg {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Underlined`
[INFO] [stderr]   --> src/man_parse/term_writer/font_style.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Underlined,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NonWhitespace`
[INFO] [stderr]  --> src/man_parse/term_writer/line_info.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     NonWhitespace,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `disable_debug`
[INFO] [stderr]   --> src/man_parse/term_writer/troff_term_writer.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn disable_debug(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `indent`
[INFO] [stderr]   --> src/man_parse/term_writer/troff_term_writer.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn indent(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `default_indent`
[INFO] [stderr]    --> src/man_parse/term_writer/troff_term_writer.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 |     pub fn default_indent(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "b0c4568f0cfd865b91b45f70baf22eab757d45261fd53fb2239f6c4335c5b67a"`
[INFO] running `"docker" "rm" "-f" "b0c4568f0cfd865b91b45f70baf22eab757d45261fd53fb2239f6c4335c5b67a"`
[INFO] [stdout] b0c4568f0cfd865b91b45f70baf22eab757d45261fd53fb2239f6c4335c5b67a