[INFO] cloning repository https://github.com/vikiboss/learn-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vikiboss/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikiboss%2Flearn-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikiboss%2Flearn-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 803e6450004d1181ab8ade83aaab7f0f004dcd93 [INFO] checking vikiboss/learn-rust against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikiboss%2Flearn-rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/vikiboss/learn-rust [INFO] finished tweaking git repo https://github.com/vikiboss/learn-rust [INFO] tweaked toml for git repo https://github.com/vikiboss/learn-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/vikiboss/learn-rust on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/vikiboss/learn-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5c46fa3ec19fdd4a54235fd50685045d85ec9846478d99d9dab204215bd084a9 [INFO] running `Command { std: "docker" "start" "-a" "5c46fa3ec19fdd4a54235fd50685045d85ec9846478d99d9dab204215bd084a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5c46fa3ec19fdd4a54235fd50685045d85ec9846478d99d9dab204215bd084a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c46fa3ec19fdd4a54235fd50685045d85ec9846478d99d9dab204215bd084a9", kill_on_drop: false }` [INFO] [stdout] 5c46fa3ec19fdd4a54235fd50685045d85ec9846478d99d9dab204215bd084a9 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a8ff2744b2f168d4fac3052803091e1e4b1e7fbc9d31a0a3b2286272b2faa0ba [INFO] running `Command { std: "docker" "start" "-a" "a8ff2744b2f168d4fac3052803091e1e4b1e7fbc9d31a0a3b2286272b2faa0ba", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.98 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking bytes v1.10.0 [INFO] [stderr] Checking once_cell v1.20.3 [INFO] [stderr] Checking litemap v0.7.4 [INFO] [stderr] Compiling cc v1.2.13 [INFO] [stderr] Compiling openssl v0.10.70 [INFO] [stderr] Checking futures-task v0.3.31 [INFO] [stderr] Compiling serde v1.0.217 [INFO] [stderr] Checking bitflags v2.8.0 [INFO] [stderr] Compiling native-tls v0.2.13 [INFO] [stderr] Checking hashbrown v0.15.2 [INFO] [stderr] Compiling httparse v1.10.0 [INFO] [stderr] Checking log v0.4.25 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling serde_json v1.0.138 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking tracing-core v0.1.33 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking indexmap v2.7.1 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Compiling openssl-sys v0.9.105 [INFO] [stderr] Checking http-body v0.4.6 [INFO] [stderr] Compiling synstructure v0.13.1 [INFO] [stderr] Compiling zerovec-derive v0.10.3 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling icu_provider_macros v1.5.0 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.217 [INFO] [stderr] Compiling zerofrom-derive v0.1.5 [INFO] [stderr] Compiling yoke-derive v0.7.5 [INFO] [stderr] Checking tokio v1.43.0 [INFO] [stderr] Checking zerofrom v0.1.5 [INFO] [stderr] Checking yoke v0.7.5 [INFO] [stderr] Checking zerovec v0.10.4 [INFO] [stderr] Checking tinystr v0.7.6 [INFO] [stderr] Checking icu_collections v1.5.0 [INFO] [stderr] Checking icu_locid v1.5.0 [INFO] [stderr] Checking icu_provider v1.5.0 [INFO] [stderr] Checking icu_locid_transform v1.5.0 [INFO] [stderr] Checking icu_properties v1.5.1 [INFO] [stderr] Checking tokio-util v0.7.13 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking h2 v0.3.26 [INFO] [stderr] Checking icu_normalizer v1.5.0 [INFO] [stderr] Checking idna_adapter v1.2.0 [INFO] [stderr] Checking idna v1.0.3 [INFO] [stderr] Checking url v2.5.4 [INFO] [stderr] Checking hyper v0.14.32 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.27 [INFO] [stderr] Checking learn-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `target` [INFO] [stdout] --> src/main.rs:180:9 [INFO] [stdout] | [INFO] [stdout] 180 | let mut target = 1232345; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/main.rs:188:9 [INFO] [stdout] | [INFO] [stdout] 188 | for n in 1..=5 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:192:9 [INFO] [stdout] | [INFO] [stdout] 192 | for e in [1, 2, 3] { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> src/main.rs:196:9 [INFO] [stdout] | [INFO] [stdout] 196 | let mut num = 0; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:198:9 [INFO] [stdout] | [INFO] [stdout] 198 | let x = loop { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:207:9 [INFO] [stdout] | [INFO] [stdout] 207 | let a = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/main.rs:210:9 [INFO] [stdout] | [INFO] [stdout] 210 | let str = format!("a is {}", a); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:214:13 [INFO] [stdout] | [INFO] [stdout] 214 | let a = "hello"; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:217:13 [INFO] [stdout] | [INFO] [stdout] 217 | let a = true; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:220:13 [INFO] [stdout] | [INFO] [stdout] 220 | let a = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `target` [INFO] [stdout] --> src/main.rs:180:9 [INFO] [stdout] | [INFO] [stdout] 180 | let mut target = 1232345; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 232 | let res = collatz_length_refined(10); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arr` [INFO] [stdout] --> src/main.rs:235:9 [INFO] [stdout] | [INFO] [stdout] 235 | let mut arr: [i32; 3] = [1, 2, 3]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/main.rs:188:9 [INFO] [stdout] | [INFO] [stdout] 188 | for n in 1..=5 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:192:9 [INFO] [stdout] | [INFO] [stdout] 192 | for e in [1, 2, 3] { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/main.rs:240:9 [INFO] [stdout] | [INFO] [stdout] 240 | let t: (i32, f64, u8, bool) = (500, 6.4, 1, true); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> src/main.rs:196:9 [INFO] [stdout] | [INFO] [stdout] 196 | let mut num = 0; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:241:10 [INFO] [stdout] | [INFO] [stdout] 241 | let (x, y, z, mut active) = t; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:241:13 [INFO] [stdout] | [INFO] [stdout] 241 | let (x, y, z, mut active) = t; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:198:9 [INFO] [stdout] | [INFO] [stdout] 198 | let x = loop { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/main.rs:241:16 [INFO] [stdout] | [INFO] [stdout] 241 | let (x, y, z, mut active) = t; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:207:9 [INFO] [stdout] | [INFO] [stdout] 207 | let a = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `active` [INFO] [stdout] --> src/main.rs:241:19 [INFO] [stdout] | [INFO] [stdout] 241 | let (x, y, z, mut active) = t; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_active` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/main.rs:210:9 [INFO] [stdout] | [INFO] [stdout] 210 | let str = format!("a is {}", a); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:248:9 [INFO] [stdout] | [INFO] [stdout] 248 | for a in arr { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:249:13 [INFO] [stdout] | [INFO] [stdout] 249 | for i in 0..a { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:214:13 [INFO] [stdout] | [INFO] [stdout] 214 | let a = "hello"; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `matrix` [INFO] [stdout] --> src/main.rs:254:9 [INFO] [stdout] | [INFO] [stdout] 254 | let matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_matrix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:217:13 [INFO] [stdout] | [INFO] [stdout] 217 | let a = true; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:220:13 [INFO] [stdout] | [INFO] [stdout] 220 | let a = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `matrix` [INFO] [stdout] --> src/main.rs:267:9 [INFO] [stdout] | [INFO] [stdout] 267 | let matrix = [[101, 102, 103], [201, 202, 203], [301, 302, 303]]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_matrix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 232 | let res = collatz_length_refined(10); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `transposed` [INFO] [stdout] --> src/main.rs:268:9 [INFO] [stdout] | [INFO] [stdout] 268 | let transposed = transpose(matrix); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transposed` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `arr` [INFO] [stdout] --> src/main.rs:235:9 [INFO] [stdout] | [INFO] [stdout] 235 | let mut arr: [i32; 3] = [1, 2, 3]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/main.rs:240:9 [INFO] [stdout] | [INFO] [stdout] 240 | let t: (i32, f64, u8, bool) = (500, 6.4, 1, true); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:241:10 [INFO] [stdout] | [INFO] [stdout] 241 | let (x, y, z, mut active) = t; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:241:13 [INFO] [stdout] | [INFO] [stdout] 241 | let (x, y, z, mut active) = t; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/main.rs:241:16 [INFO] [stdout] | [INFO] [stdout] 241 | let (x, y, z, mut active) = t; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `active` [INFO] [stdout] --> src/main.rs:241:19 [INFO] [stdout] | [INFO] [stdout] 241 | let (x, y, z, mut active) = t; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_active` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:248:9 [INFO] [stdout] | [INFO] [stdout] 248 | for a in arr { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:249:13 [INFO] [stdout] | [INFO] [stdout] 249 | for i in 0..a { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `matrix` [INFO] [stdout] --> src/main.rs:254:9 [INFO] [stdout] | [INFO] [stdout] 254 | let matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_matrix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `matrix` [INFO] [stdout] --> src/main.rs:267:9 [INFO] [stdout] | [INFO] [stdout] 267 | let matrix = [[101, 102, 103], [201, 202, 203], [301, 302, 303]]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_matrix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `transposed` [INFO] [stdout] --> src/main.rs:268:9 [INFO] [stdout] | [INFO] [stdout] 268 | let transposed = transpose(matrix); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transposed` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.78s [INFO] running `Command { std: "docker" "inspect" "a8ff2744b2f168d4fac3052803091e1e4b1e7fbc9d31a0a3b2286272b2faa0ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8ff2744b2f168d4fac3052803091e1e4b1e7fbc9d31a0a3b2286272b2faa0ba", kill_on_drop: false }` [INFO] [stdout] a8ff2744b2f168d4fac3052803091e1e4b1e7fbc9d31a0a3b2286272b2faa0ba