[INFO] updating cached repository naoppy/Language-processing-100-knocks-by-Rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/naoppy/Language-processing-100-knocks-by-Rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/naoppy/Language-processing-100-knocks-by-Rust" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/naoppy/Language-processing-100-knocks-by-Rust"` [INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/naoppy/Language-processing-100-knocks-by-Rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/naoppy/Language-processing-100-knocks-by-Rust" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/naoppy/Language-processing-100-knocks-by-Rust"` [INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/naoppy/Language-processing-100-knocks-by-Rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d124c0ec942ac01231dfce01eec322922e6f304b [INFO] sha for GitHub repo naoppy/Language-processing-100-knocks-by-Rust: d124c0ec942ac01231dfce01eec322922e6f304b [INFO] validating manifest of naoppy/Language-processing-100-knocks-by-Rust on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of naoppy/Language-processing-100-knocks-by-Rust on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing naoppy/Language-processing-100-knocks-by-Rust [INFO] finished frobbing naoppy/Language-processing-100-knocks-by-Rust [INFO] frobbed toml for naoppy/Language-processing-100-knocks-by-Rust written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/naoppy/Language-processing-100-knocks-by-Rust/Cargo.toml [INFO] started frobbing naoppy/Language-processing-100-knocks-by-Rust [INFO] finished frobbing naoppy/Language-processing-100-knocks-by-Rust [INFO] frobbed toml for naoppy/Language-processing-100-knocks-by-Rust written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/naoppy/Language-processing-100-knocks-by-Rust/Cargo.toml [INFO] crate naoppy/Language-processing-100-knocks-by-Rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking naoppy/Language-processing-100-knocks-by-Rust against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-1/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/naoppy/Language-processing-100-knocks-by-Rust:/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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 5cd93ba284a534cf34bdf4e5e8be5c0ff4e998a1a686d3ca16d2d87fac4d9a86 [INFO] running `"docker" "start" "-a" "5cd93ba284a534cf34bdf4e5e8be5c0ff4e998a1a686d3ca16d2d87fac4d9a86"` [INFO] [stderr] Checking gengo100 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: function is never used: `tab_to_space` [INFO] [stderr] --> src/chap2/main.rs:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | fn tab_to_space(path: &Path, tab_width: usize) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_col` [INFO] [stderr] --> src/chap2/main.rs:35:1 [INFO] [stderr] | [INFO] [stderr] 35 | fn get_col(source: &Path, out: &Path, column_number: usize) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge_columns` [INFO] [stderr] --> src/chap2/main.rs:57:1 [INFO] [stderr] | [INFO] [stderr] 57 | fn merge_columns(source1: &Path, source2: &Path) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `heads` [INFO] [stderr] --> src/chap2/main.rs:69:1 [INFO] [stderr] | [INFO] [stderr] 69 | fn heads(path: &Path, n: usize) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tails` [INFO] [stderr] --> src/chap2/main.rs:77:1 [INFO] [stderr] | [INFO] [stderr] 77 | fn tails(path: &Path, n: usize) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `split_file` [INFO] [stderr] --> src/chap2/main.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | fn split_file(path: &Path, n: usize) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_column_differences` [INFO] [stderr] --> src/chap2/main.rs:96:1 [INFO] [stderr] | [INFO] [stderr] 96 | fn get_column_differences(path: &Path, n: usize) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sort_by_column` [INFO] [stderr] --> src/chap2/main.rs:114:1 [INFO] [stderr] | [INFO] [stderr] 114 | fn sort_by_column(path: &Path, n: usize) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sort_by_frequency` [INFO] [stderr] --> src/chap2/main.rs:126:1 [INFO] [stderr] | [INFO] [stderr] 126 | fn sort_by_frequency(path: &Path) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tab_to_space` [INFO] [stderr] --> src/chap2/main.rs:23:1 [INFO] [stderr] | [INFO] [stderr] 23 | fn tab_to_space(path: &Path, tab_width: usize) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_col` [INFO] [stderr] --> src/chap2/main.rs:35:1 [INFO] [stderr] | [INFO] [stderr] 35 | fn get_col(source: &Path, out: &Path, column_number: usize) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge_columns` [INFO] [stderr] --> src/chap2/main.rs:57:1 [INFO] [stderr] | [INFO] [stderr] 57 | fn merge_columns(source1: &Path, source2: &Path) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `heads` [INFO] [stderr] --> src/chap2/main.rs:69:1 [INFO] [stderr] | [INFO] [stderr] 69 | fn heads(path: &Path, n: usize) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tails` [INFO] [stderr] --> src/chap2/main.rs:77:1 [INFO] [stderr] | [INFO] [stderr] 77 | fn tails(path: &Path, n: usize) -> io::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `split_file` [INFO] [stderr] --> src/chap2/main.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | fn split_file(path: &Path, n: usize) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_column_differences` [INFO] [stderr] --> src/chap2/main.rs:96:1 [INFO] [stderr] | [INFO] [stderr] 96 | fn get_column_differences(path: &Path, n: usize) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sort_by_column` [INFO] [stderr] --> src/chap2/main.rs:114:1 [INFO] [stderr] | [INFO] [stderr] 114 | fn sort_by_column(path: &Path, n: usize) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `sort_by_frequency` [INFO] [stderr] --> src/chap2/main.rs:126:1 [INFO] [stderr] | [INFO] [stderr] 126 | fn sort_by_frequency(path: &Path) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `"docker" "inspect" "5cd93ba284a534cf34bdf4e5e8be5c0ff4e998a1a686d3ca16d2d87fac4d9a86"` [INFO] running `"docker" "rm" "-f" "5cd93ba284a534cf34bdf4e5e8be5c0ff4e998a1a686d3ca16d2d87fac4d9a86"` [INFO] [stdout] 5cd93ba284a534cf34bdf4e5e8be5c0ff4e998a1a686d3ca16d2d87fac4d9a86