[INFO] fetching crate ratio-bus 0.1.0...
[INFO] checking ratio-bus-0.1.0 against nightly-2024-02-05 for check-cfg-2
[INFO] extracting crate ratio-bus 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate ratio-bus 0.1.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ratio-bus 0.1.0
[INFO] finished tweaking crates.io crate ratio-bus 0.1.0
[INFO] tweaked toml for crates.io crate ratio-bus 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu v0.7.5
[INFO] [stderr]   Downloaded snafu-derive v0.7.5
[INFO] [stderr]   Downloaded simba v0.7.3
[INFO] [stderr]   Downloaded nalgebra v0.31.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07fae54c6b878bd9704c474b56663f6895734290a53dbfca3247b752260269d7
[INFO] running `Command { std: "docker" "start" "-a" "07fae54c6b878bd9704c474b56663f6895734290a53dbfca3247b752260269d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07fae54c6b878bd9704c474b56663f6895734290a53dbfca3247b752260269d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07fae54c6b878bd9704c474b56663f6895734290a53dbfca3247b752260269d7", kill_on_drop: false }`
[INFO] [stdout] 07fae54c6b878bd9704c474b56663f6895734290a53dbfca3247b752260269d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a58f6a819c8c7388c2e6b350c6c39ed6887782dbc35fa7016b4a5fad26f73fd
[INFO] running `Command { std: "docker" "start" "-a" "4a58f6a819c8c7388c2e6b350c6c39ed6887782dbc35fa7016b4a5fad26f73fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytemuck v1.14.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking wide v0.7.15
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking snafu v0.7.5
[INFO] [stderr]     Checking nalgebra v0.31.4
[INFO] [stderr]     Checking ratio-bus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout]     |                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout] 102 +             in_degree[i] = in_degree[(i)] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:102:40
[INFO] [stdout]     |
[INFO] [stdout] 102 |             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout]     |                                        ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout] 102 +             in_degree[(i)] = in_degree[i] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 103 |             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout]     |                        ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout] 103 +             out_degree[j] = out_degree[(j)] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout]     |                                          ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout] 103 +             out_degree[(j)] = out_degree[j] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout]     |                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout] 102 +             in_degree[i] = in_degree[(i)] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:102:40
[INFO] [stdout]     |
[INFO] [stdout] 102 |             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout]     |                                        ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout] 102 +             in_degree[(i)] = in_degree[i] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 103 |             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout]     |                        ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout] 103 +             out_degree[j] = out_degree[(j)] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout]     |                                          ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout] 103 +             out_degree[(j)] = out_degree[j] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.08s
[INFO] running `Command { std: "docker" "inspect" "4a58f6a819c8c7388c2e6b350c6c39ed6887782dbc35fa7016b4a5fad26f73fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a58f6a819c8c7388c2e6b350c6c39ed6887782dbc35fa7016b4a5fad26f73fd", kill_on_drop: false }`
[INFO] [stdout] 4a58f6a819c8c7388c2e6b350c6c39ed6887782dbc35fa7016b4a5fad26f73fd
[INFO] checking ratio-bus-0.1.0 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg-2
[INFO] extracting crate ratio-bus 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate ratio-bus 0.1.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ratio-bus 0.1.0
[INFO] finished tweaking crates.io crate ratio-bus 0.1.0
[INFO] tweaked toml for crates.io crate ratio-bus 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cc0dfd3a602c2785dbc2c1275cb2ad196f8949b09b766024bd2dfd74e6fbddf
[INFO] running `Command { std: "docker" "start" "-a" "7cc0dfd3a602c2785dbc2c1275cb2ad196f8949b09b766024bd2dfd74e6fbddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cc0dfd3a602c2785dbc2c1275cb2ad196f8949b09b766024bd2dfd74e6fbddf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc0dfd3a602c2785dbc2c1275cb2ad196f8949b09b766024bd2dfd74e6fbddf", kill_on_drop: false }`
[INFO] [stdout] 7cc0dfd3a602c2785dbc2c1275cb2ad196f8949b09b766024bd2dfd74e6fbddf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunexpected_cfgs" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] f7fbf24dad382baded26c0f50c9e92cfd0bf0a9435a28d1392063dbb507cf1ed
[INFO] running `Command { std: "docker" "start" "-a" "f7fbf24dad382baded26c0f50c9e92cfd0bf0a9435a28d1392063dbb507cf1ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytemuck v1.14.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking wide v0.7.15
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]     Checking snafu v0.7.5
[INFO] [stderr]     Checking nalgebra v0.31.4
[INFO] [stderr]     Checking ratio-bus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout]     |                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout] 102 +             in_degree[i] = in_degree[(i)] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:102:40
[INFO] [stdout]     |
[INFO] [stdout] 102 |             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout]     |                                        ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout] 102 +             in_degree[(i)] = in_degree[i] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 103 |             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout]     |                        ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout] 103 +             out_degree[j] = out_degree[(j)] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout]     |                                          ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout] 103 +             out_degree[(j)] = out_degree[j] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `tarpaulin_include`
[INFO] [stdout]    --> src/lib.rs:110:11
[INFO] [stdout]     |
[INFO] [stdout] 110 | #[cfg(not(tarpaulin_include))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(tarpaulin_include)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout]     |                       ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout] 102 +             in_degree[i] = in_degree[(i)] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:102:40
[INFO] [stdout]     |
[INFO] [stdout] 102 |             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout]     |                                        ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -             in_degree[(i)] = in_degree[(i)] + 1;
[INFO] [stdout] 102 +             in_degree[(i)] = in_degree[i] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 103 |             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout]     |                        ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout] 103 +             out_degree[j] = out_degree[(j)] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout]     |                                          ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             out_degree[(j)] = out_degree[(j)] + 1;
[INFO] [stdout] 103 +             out_degree[(j)] = out_degree[j] + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ratio-bus` (lib test) due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f7fbf24dad382baded26c0f50c9e92cfd0bf0a9435a28d1392063dbb507cf1ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7fbf24dad382baded26c0f50c9e92cfd0bf0a9435a28d1392063dbb507cf1ed", kill_on_drop: false }`
[INFO] [stdout] f7fbf24dad382baded26c0f50c9e92cfd0bf0a9435a28d1392063dbb507cf1ed
