[INFO] cloning repository https://github.com/LegendarySaiyan/structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LegendarySaiyan/structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLegendarySaiyan%2Fstructures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLegendarySaiyan%2Fstructures'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f375d1f242c501951f7a3a6c49a09a7895f57326 [INFO] testing LegendarySaiyan/structures against master#595316b4006932405a63862d8fe65f71a6356293 for pr-128254 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLegendarySaiyan%2Fstructures" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LegendarySaiyan/structures on toolchain 595316b4006932405a63862d8fe65f71a6356293 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LegendarySaiyan/structures [INFO] finished tweaking git repo https://github.com/LegendarySaiyan/structures [INFO] tweaked toml for git repo https://github.com/LegendarySaiyan/structures written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/LegendarySaiyan/structures 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" "+595316b4006932405a63862d8fe65f71a6356293" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 023ff381c3934eb6bc048fe25732fd0566c484c2e31589c8147996ef98903b64 [INFO] running `Command { std: "docker" "start" "-a" "023ff381c3934eb6bc048fe25732fd0566c484c2e31589c8147996ef98903b64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "023ff381c3934eb6bc048fe25732fd0566c484c2e31589c8147996ef98903b64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "023ff381c3934eb6bc048fe25732fd0566c484c2e31589c8147996ef98903b64", kill_on_drop: false }` [INFO] [stdout] 023ff381c3934eb6bc048fe25732fd0566c484c2e31589c8147996ef98903b64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e2d5ecc78bc483957c2faa2616582bf9e6108cd6e7ea9b3e6bfc4144b58b951a [INFO] running `Command { std: "docker" "start" "-a" "e2d5ecc78bc483957c2faa2616582bf9e6108cd6e7ea9b3e6bfc4144b58b951a", kill_on_drop: false }` [INFO] [stderr] Compiling structures v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `left` is never read [INFO] [stdout] --> src/binary_tree.rs:272:17 [INFO] [stdout] | [INFO] [stdout] 272 | let mut left = std::option::Option::None; [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: value assigned to `right` is never read [INFO] [stdout] --> src/binary_tree.rs:273:17 [INFO] [stdout] | [INFO] [stdout] 273 | let mut right = std::option::Option::None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `parent` is never read [INFO] [stdout] --> src/binary_tree.rs:274:17 [INFO] [stdout] | [INFO] [stdout] 274 | let mut parent = std::option::Option::None; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/red_black_tree.rs:343:17 [INFO] [stdout] | [INFO] [stdout] 343 | let mut x = None; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/red_black_tree.rs:396:13 [INFO] [stdout] | [INFO] [stdout] 396 | let mut x_ptr = x.unwrap().as_ptr(); [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: struct `BinaryTree` is never constructed [INFO] [stdout] --> src/binary_tree.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct BinaryTree { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple methods are never used [INFO] [stdout] --> src/binary_tree.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl BinaryTree { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 72 | fn private_inorder_tree_walk(&self, x: Option>, vec: &mut Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | fn process_result(&self, result: Option>) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | fn tree_search(&self, x: Option>, k: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 129 | fn find_minimum(&self, x: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | fn find_maximum(&self, x: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 155 | fn successor(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 175 | fn insert(&mut self, node: Box) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 205 | fn transplant(&mut self, u: Option>, v: Option>) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 228 | fn delete(&mut self, z: Option>){ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s [INFO] running `Command { std: "docker" "inspect" "e2d5ecc78bc483957c2faa2616582bf9e6108cd6e7ea9b3e6bfc4144b58b951a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2d5ecc78bc483957c2faa2616582bf9e6108cd6e7ea9b3e6bfc4144b58b951a", kill_on_drop: false }` [INFO] [stdout] e2d5ecc78bc483957c2faa2616582bf9e6108cd6e7ea9b3e6bfc4144b58b951a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5d632efb2923bd53926492a5f9c692bf220c19ae599277a87b9778aabee58927 [INFO] running `Command { std: "docker" "start" "-a" "5d632efb2923bd53926492a5f9c692bf220c19ae599277a87b9778aabee58927", kill_on_drop: false }` [INFO] [stdout] warning: value assigned to `left` is never read [INFO] [stdout] --> src/binary_tree.rs:272:17 [INFO] [stdout] | [INFO] [stdout] 272 | let mut left = std::option::Option::None; [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: value assigned to `right` is never read [INFO] [stdout] --> src/binary_tree.rs:273:17 [INFO] [stdout] | [INFO] [stdout] 273 | let mut right = std::option::Option::None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `parent` is never read [INFO] [stdout] --> src/binary_tree.rs:274:17 [INFO] [stdout] | [INFO] [stdout] 274 | let mut parent = std::option::Option::None; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/red_black_tree.rs:343:17 [INFO] [stdout] | [INFO] [stdout] 343 | let mut x = None; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/red_black_tree.rs:396:13 [INFO] [stdout] | [INFO] [stdout] 396 | let mut x_ptr = x.unwrap().as_ptr(); [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: struct `BinaryTree` is never constructed [INFO] [stdout] --> src/binary_tree.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct BinaryTree { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple methods are never used [INFO] [stdout] --> src/binary_tree.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl BinaryTree { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 72 | fn private_inorder_tree_walk(&self, x: Option>, vec: &mut Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | fn process_result(&self, result: Option>) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 102 | fn tree_search(&self, x: Option>, k: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 129 | fn find_minimum(&self, x: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | fn find_maximum(&self, x: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 155 | fn successor(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 175 | fn insert(&mut self, node: Box) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 205 | fn transplant(&mut self, u: Option>, v: Option>) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 228 | fn delete(&mut self, z: Option>){ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling structures v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `left` is never read [INFO] [stdout] --> src/binary_tree.rs:272:17 [INFO] [stdout] | [INFO] [stdout] 272 | let mut left = std::option::Option::None; [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: value assigned to `right` is never read [INFO] [stdout] --> src/binary_tree.rs:273:17 [INFO] [stdout] | [INFO] [stdout] 273 | let mut right = std::option::Option::None; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `parent` is never read [INFO] [stdout] --> src/binary_tree.rs:274:17 [INFO] [stdout] | [INFO] [stdout] 274 | let mut parent = std::option::Option::None; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/red_black_tree.rs:343:17 [INFO] [stdout] | [INFO] [stdout] 343 | let mut x = None; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/red_black_tree.rs:396:13 [INFO] [stdout] | [INFO] [stdout] 396 | let mut x_ptr = x.unwrap().as_ptr(); [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: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s [INFO] running `Command { std: "docker" "inspect" "5d632efb2923bd53926492a5f9c692bf220c19ae599277a87b9778aabee58927", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d632efb2923bd53926492a5f9c692bf220c19ae599277a87b9778aabee58927", kill_on_drop: false }` [INFO] [stdout] 5d632efb2923bd53926492a5f9c692bf220c19ae599277a87b9778aabee58927 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 30b5c457821b4f09d83514e56c344c57702b5741018631de5f1797c939e51f7c [INFO] running `Command { std: "docker" "start" "-a" "30b5c457821b4f09d83514e56c344c57702b5741018631de5f1797c939e51f7c", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `left` is never read [INFO] [stderr] --> src/binary_tree.rs:272:17 [INFO] [stderr] | [INFO] [stderr] 272 | let mut left = std::option::Option::None; [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: value assigned to `right` is never read [INFO] [stderr] --> src/binary_tree.rs:273:17 [INFO] [stderr] | [INFO] [stderr] 273 | let mut right = std::option::Option::None; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `parent` is never read [INFO] [stderr] --> src/binary_tree.rs:274:17 [INFO] [stderr] | [INFO] [stderr] 274 | let mut parent = std::option::Option::None; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `x` is never read [INFO] [stderr] --> src/red_black_tree.rs:343:17 [INFO] [stderr] | [INFO] [stderr] 343 | let mut x = None; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/red_black_tree.rs:396:13 [INFO] [stderr] | [INFO] [stderr] 396 | let mut x_ptr = x.unwrap().as_ptr(); [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: struct `BinaryTree` is never constructed [INFO] [stderr] --> src/binary_tree.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct BinaryTree { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: multiple methods are never used [INFO] [stderr] --> src/binary_tree.rs:72:8 [INFO] [stderr] | [INFO] [stderr] 8 | impl BinaryTree { [INFO] [stderr] | --------------- methods in this implementation [INFO] [stderr] ... [INFO] [stderr] 72 | fn private_inorder_tree_walk(&self, x: Option>, vec: &mut Vec) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 93 | fn process_result(&self, result: Option>) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 102 | fn tree_search(&self, x: Option>, k: i32) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 129 | fn find_minimum(&self, x: Option>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 142 | fn find_maximum(&self, x: Option>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 155 | fn successor(&mut self) -> Option> { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 175 | fn insert(&mut self, node: Box) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 205 | fn transplant(&mut self, u: Option>, v: Option>) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 228 | fn delete(&mut self, z: Option>){ [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `structures` (lib) generated 7 warnings (run `cargo fix --lib -p structures` to apply 1 suggestion) [INFO] [stderr] warning: `structures` (lib test) generated 5 warnings (5 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/structures-f8360d1fdbcb11ad) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test binary_tree::tests::test_binary_tree ... ok [INFO] [stdout] test red_black_tree::tests::test_red_black_tree ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests structures [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" "30b5c457821b4f09d83514e56c344c57702b5741018631de5f1797c939e51f7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30b5c457821b4f09d83514e56c344c57702b5741018631de5f1797c939e51f7c", kill_on_drop: false }` [INFO] [stdout] 30b5c457821b4f09d83514e56c344c57702b5741018631de5f1797c939e51f7c