[INFO] cloning repository https://github.com/naoppy/Language-processing-100-knocks-by-Rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/naoppy/Language-processing-100-knocks-by-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaoppy%2FLanguage-processing-100-knocks-by-Rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaoppy%2FLanguage-processing-100-knocks-by-Rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d124c0ec942ac01231dfce01eec322922e6f304b [INFO] testing naoppy/Language-processing-100-knocks-by-Rust against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaoppy%2FLanguage-processing-100-knocks-by-Rust" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/naoppy/Language-processing-100-knocks-by-Rust on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/naoppy/Language-processing-100-knocks-by-Rust [INFO] finished tweaking git repo https://github.com/naoppy/Language-processing-100-knocks-by-Rust [INFO] tweaked toml for git repo https://github.com/naoppy/Language-processing-100-knocks-by-Rust written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/naoppy/Language-processing-100-knocks-by-Rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 56ad6f53d8b4bf15a5e0925fbe4bf29176026686061a7b7e278cb77de75b8ceb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "56ad6f53d8b4bf15a5e0925fbe4bf29176026686061a7b7e278cb77de75b8ceb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56ad6f53d8b4bf15a5e0925fbe4bf29176026686061a7b7e278cb77de75b8ceb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56ad6f53d8b4bf15a5e0925fbe4bf29176026686061a7b7e278cb77de75b8ceb", kill_on_drop: false }` [INFO] [stdout] 56ad6f53d8b4bf15a5e0925fbe4bf29176026686061a7b7e278cb77de75b8ceb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d4acbaa4ea1f544718f82eba26564aec03571b3b0a7c7d92f5ce47d69656edfd [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d4acbaa4ea1f544718f82eba26564aec03571b3b0a7c7d92f5ce47d69656edfd", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.4 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling rand_os v0.1.1 [INFO] [stderr] Compiling gengo100 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `tab_to_space` [INFO] [stdout] --> src/chap2/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn tab_to_space(path: &Path, tab_width: usize) -> io::Result { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_col` [INFO] [stdout] --> src/chap2/main.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn get_col(source: &Path, out: &Path, column_number: usize) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `merge_columns` [INFO] [stdout] --> src/chap2/main.rs:57:4 [INFO] [stdout] | [INFO] [stdout] 57 | fn merge_columns(source1: &Path, source2: &Path) -> io::Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `heads` [INFO] [stdout] --> src/chap2/main.rs:69:4 [INFO] [stdout] | [INFO] [stdout] 69 | fn heads(path: &Path, n: usize) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `tails` [INFO] [stdout] --> src/chap2/main.rs:77:4 [INFO] [stdout] | [INFO] [stdout] 77 | fn tails(path: &Path, n: usize) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `split_file` [INFO] [stdout] --> src/chap2/main.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn split_file(path: &Path, n: usize) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_column_differences` [INFO] [stdout] --> src/chap2/main.rs:96:4 [INFO] [stdout] | [INFO] [stdout] 96 | fn get_column_differences(path: &Path, n: usize) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sort_by_column` [INFO] [stdout] --> src/chap2/main.rs:114:4 [INFO] [stdout] | [INFO] [stdout] 114 | fn sort_by_column(path: &Path, n: usize) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sort_by_frequency` [INFO] [stdout] --> src/chap2/main.rs:126:4 [INFO] [stdout] | [INFO] [stdout] 126 | fn sort_by_frequency(path: &Path) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.63s [INFO] running `Command { std: "docker" "inspect" "d4acbaa4ea1f544718f82eba26564aec03571b3b0a7c7d92f5ce47d69656edfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4acbaa4ea1f544718f82eba26564aec03571b3b0a7c7d92f5ce47d69656edfd", kill_on_drop: false }` [INFO] [stdout] d4acbaa4ea1f544718f82eba26564aec03571b3b0a7c7d92f5ce47d69656edfd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4e3820095e0b0efd591ca169e6ef57259703fd89ad4b48a46db0f3b3bdaf9344 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4e3820095e0b0efd591ca169e6ef57259703fd89ad4b48a46db0f3b3bdaf9344", kill_on_drop: false }` [INFO] [stderr] Compiling gengo100 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `tab_to_space` [INFO] [stdout] --> src/chap2/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn tab_to_space(path: &Path, tab_width: usize) -> io::Result { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_col` [INFO] [stdout] --> src/chap2/main.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn get_col(source: &Path, out: &Path, column_number: usize) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `merge_columns` [INFO] [stdout] --> src/chap2/main.rs:57:4 [INFO] [stdout] | [INFO] [stdout] 57 | fn merge_columns(source1: &Path, source2: &Path) -> io::Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `heads` [INFO] [stdout] --> src/chap2/main.rs:69:4 [INFO] [stdout] | [INFO] [stdout] 69 | fn heads(path: &Path, n: usize) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `tails` [INFO] [stdout] --> src/chap2/main.rs:77:4 [INFO] [stdout] | [INFO] [stdout] 77 | fn tails(path: &Path, n: usize) -> io::Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `split_file` [INFO] [stdout] --> src/chap2/main.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn split_file(path: &Path, n: usize) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_column_differences` [INFO] [stdout] --> src/chap2/main.rs:96:4 [INFO] [stdout] | [INFO] [stdout] 96 | fn get_column_differences(path: &Path, n: usize) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sort_by_column` [INFO] [stdout] --> src/chap2/main.rs:114:4 [INFO] [stdout] | [INFO] [stdout] 114 | fn sort_by_column(path: &Path, n: usize) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sort_by_frequency` [INFO] [stdout] --> src/chap2/main.rs:126:4 [INFO] [stdout] | [INFO] [stdout] 126 | fn sort_by_frequency(path: &Path) -> io::Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.84s [INFO] running `Command { std: "docker" "inspect" "4e3820095e0b0efd591ca169e6ef57259703fd89ad4b48a46db0f3b3bdaf9344", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e3820095e0b0efd591ca169e6ef57259703fd89ad4b48a46db0f3b3bdaf9344", kill_on_drop: false }` [INFO] [stdout] 4e3820095e0b0efd591ca169e6ef57259703fd89ad4b48a46db0f3b3bdaf9344 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c8d278ffe57803d7f7ee4a8fe21dd7a215e98425e32f8f783944387c0b4d7d2f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c8d278ffe57803d7f7ee4a8fe21dd7a215e98425e32f8f783944387c0b4d7d2f", kill_on_drop: false }` [INFO] [stderr] warning: function is never used: `tab_to_space` [INFO] [stderr] --> src/chap2/main.rs:23:4 [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:35:4 [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:57:4 [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:69:4 [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:77:4 [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:87:4 [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:96:4 [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:114:4 [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:126:4 [INFO] [stderr] | [INFO] [stderr] 126 | fn sort_by_frequency(path: &Path) -> io::Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/chap2-35b2e6f6d28d0379 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c8d278ffe57803d7f7ee4a8fe21dd7a215e98425e32f8f783944387c0b4d7d2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8d278ffe57803d7f7ee4a8fe21dd7a215e98425e32f8f783944387c0b4d7d2f", kill_on_drop: false }` [INFO] [stdout] c8d278ffe57803d7f7ee4a8fe21dd7a215e98425e32f8f783944387c0b4d7d2f