[INFO] cloning repository https://github.com/gilbertbizz/learn_algorithms_in_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gilbertbizz/learn_algorithms_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilbertbizz%2Flearn_algorithms_in_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilbertbizz%2Flearn_algorithms_in_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f2543b44e8385e830f2579e60fdeca5bf265a8bd [INFO] testing gilbertbizz/learn_algorithms_in_rust against 1.84.0 for beta-1.85-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilbertbizz%2Flearn_algorithms_in_rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gilbertbizz/learn_algorithms_in_rust on toolchain 1.84.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.84.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gilbertbizz/learn_algorithms_in_rust [INFO] finished tweaking git repo https://github.com/gilbertbizz/learn_algorithms_in_rust [INFO] tweaked toml for git repo https://github.com/gilbertbizz/learn_algorithms_in_rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/gilbertbizz/learn_algorithms_in_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" "+1.84.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c19cd05be3c91d3a7f70f555bffa80527d19857a9e602756e32fae7f4436cd19 [INFO] running `Command { std: "docker" "start" "-a" "c19cd05be3c91d3a7f70f555bffa80527d19857a9e602756e32fae7f4436cd19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c19cd05be3c91d3a7f70f555bffa80527d19857a9e602756e32fae7f4436cd19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c19cd05be3c91d3a7f70f555bffa80527d19857a9e602756e32fae7f4436cd19", kill_on_drop: false }` [INFO] [stdout] c19cd05be3c91d3a7f70f555bffa80527d19857a9e602756e32fae7f4436cd19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ce87bb8bd091faf156e5c8ef7ddba1c2e68d70f7a151ced5ac3dff0a79ad2bbb [INFO] running `Command { std: "docker" "start" "-a" "ce87bb8bd091faf156e5c8ef7ddba1c2e68d70f7a151ced5ac3dff0a79ad2bbb", kill_on_drop: false }` [INFO] [stderr] Compiling my_rust_basics v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `mem::transmute_copy` [INFO] [stdout] --> src/graph.rs:1:58 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, fmt::Display, mem::transmute_copy}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `side` [INFO] [stdout] --> src/avl_tree.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | let side = match self.balance_factor() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_side` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `n` is assigned to, but never used [INFO] [stdout] --> src/array.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | let mut n: T; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_n` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n` is never read [INFO] [stdout] --> src/array.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | n = *r; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `child_mut` is never used [INFO] [stdout] --> src/avl_tree.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 30 | impl AVLNode { [INFO] [stdout] | ----------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 38 | fn child_mut(&mut self, side: Side) -> &mut Option>> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s [INFO] running `Command { std: "docker" "inspect" "ce87bb8bd091faf156e5c8ef7ddba1c2e68d70f7a151ced5ac3dff0a79ad2bbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce87bb8bd091faf156e5c8ef7ddba1c2e68d70f7a151ced5ac3dff0a79ad2bbb", kill_on_drop: false }` [INFO] [stdout] ce87bb8bd091faf156e5c8ef7ddba1c2e68d70f7a151ced5ac3dff0a79ad2bbb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b0fc150c769a864cd1015427eb1cb954e436c93ad072bbedc3dc106c34dbe77 [INFO] running `Command { std: "docker" "start" "-a" "4b0fc150c769a864cd1015427eb1cb954e436c93ad072bbedc3dc106c34dbe77", kill_on_drop: false }` [INFO] [stderr] Compiling my_rust_basics v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `mem::transmute_copy` [INFO] [stdout] --> src/graph.rs:1:58 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, fmt::Display, mem::transmute_copy}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `side` [INFO] [stdout] --> src/avl_tree.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | let side = match self.balance_factor() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_side` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `n` is assigned to, but never used [INFO] [stdout] --> src/array.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | let mut n: T; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_n` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n` is never read [INFO] [stdout] --> src/array.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | n = *r; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `child_mut` is never used [INFO] [stdout] --> src/avl_tree.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 30 | impl AVLNode { [INFO] [stdout] | ----------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 38 | fn child_mut(&mut self, side: Side) -> &mut Option>> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `mem::transmute_copy` [INFO] [stdout] --> src/graph.rs:1:58 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, fmt::Display, mem::transmute_copy}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `side` [INFO] [stdout] --> src/avl_tree.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | let side = match self.balance_factor() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_side` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `n` is assigned to, but never used [INFO] [stdout] --> src/array.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | let mut n: T; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_n` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `n` is never read [INFO] [stdout] --> src/array.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | n = *r; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/sudoku.rs:117:17 [INFO] [stdout] | [INFO] [stdout] 117 | let mut sudoku = Sudoku::new(board); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `child_mut` is never used [INFO] [stdout] --> src/avl_tree.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 30 | impl AVLNode { [INFO] [stdout] | ----------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 38 | fn child_mut(&mut self, side: Side) -> &mut Option>> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.79s [INFO] running `Command { std: "docker" "inspect" "4b0fc150c769a864cd1015427eb1cb954e436c93ad072bbedc3dc106c34dbe77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b0fc150c769a864cd1015427eb1cb954e436c93ad072bbedc3dc106c34dbe77", kill_on_drop: false }` [INFO] [stdout] 4b0fc150c769a864cd1015427eb1cb954e436c93ad072bbedc3dc106c34dbe77 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 42e94f6dc2e60b16d697466956835104f0a20a0e2c2c9f5239d05b4a022c1761 [INFO] running `Command { std: "docker" "start" "-a" "42e94f6dc2e60b16d697466956835104f0a20a0e2c2c9f5239d05b4a022c1761", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `mem::transmute_copy` [INFO] [stderr] --> src/graph.rs:1:58 [INFO] [stderr] | [INFO] [stderr] 1 | use std::{collections::{HashMap, HashSet}, fmt::Display, mem::transmute_copy}; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `side` [INFO] [stderr] --> src/avl_tree.rs:64:13 [INFO] [stderr] | [INFO] [stderr] 64 | let side = match self.balance_factor() { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_side` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `n` is assigned to, but never used [INFO] [stderr] --> src/array.rs:2:13 [INFO] [stderr] | [INFO] [stderr] 2 | let mut n: T; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_n` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `n` is never read [INFO] [stderr] --> src/array.rs:7:13 [INFO] [stderr] | [INFO] [stderr] 7 | n = *r; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `child_mut` is never used [INFO] [stderr] --> src/avl_tree.rs:38:8 [INFO] [stderr] | [INFO] [stderr] 30 | impl AVLNode { [INFO] [stderr] | ----------------------- method in this implementation [INFO] [stderr] ... [INFO] [stderr] 38 | fn child_mut(&mut self, side: Side) -> &mut Option>> { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `my_rust_basics` (lib) generated 5 warnings (run `cargo fix --lib -p my_rust_basics` to apply 1 suggestion) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/sudoku.rs:117:17 [INFO] [stderr] | [INFO] [stderr] 117 | let mut sudoku = Sudoku::new(board); [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: `my_rust_basics` (lib test) generated 6 warnings (5 duplicates) (run `cargo fix --lib -p my_rust_basics --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/my_rust_basics-a2c5b70736f2a9e7) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test sudoku::tests::test_sudoku_correct ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/my_rust_basics-3870aff1e9457fc6) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests my_rust_basics [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "42e94f6dc2e60b16d697466956835104f0a20a0e2c2c9f5239d05b4a022c1761", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42e94f6dc2e60b16d697466956835104f0a20a0e2c2c9f5239d05b4a022c1761", kill_on_drop: false }` [INFO] [stdout] 42e94f6dc2e60b16d697466956835104f0a20a0e2c2c9f5239d05b4a022c1761