[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#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLegendarySaiyan%2Fstructures" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LegendarySaiyan/structures on toolchain 1ddedbaa5919b7b3e70d984660e21e844c615c97 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "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-4-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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 82c820f4918a3fe783a7c6994e66c9dd9d17f84f9eeb259c0d5e005471c01b91 [INFO] running `Command { std: "docker" "start" "-a" "82c820f4918a3fe783a7c6994e66c9dd9d17f84f9eeb259c0d5e005471c01b91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "82c820f4918a3fe783a7c6994e66c9dd9d17f84f9eeb259c0d5e005471c01b91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "82c820f4918a3fe783a7c6994e66c9dd9d17f84f9eeb259c0d5e005471c01b91", kill_on_drop: false }` [INFO] [stdout] 82c820f4918a3fe783a7c6994e66c9dd9d17f84f9eeb259c0d5e005471c01b91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b0a724007b4724dac408ef502b031bd55c19cccb509b81ce4c3cf4a463312a79 [INFO] running `Command { std: "docker" "start" "-a" "b0a724007b4724dac408ef502b031bd55c19cccb509b81ce4c3cf4a463312a79", 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 0.24s [INFO] running `Command { std: "docker" "inspect" "b0a724007b4724dac408ef502b031bd55c19cccb509b81ce4c3cf4a463312a79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0a724007b4724dac408ef502b031bd55c19cccb509b81ce4c3cf4a463312a79", kill_on_drop: false }` [INFO] [stdout] b0a724007b4724dac408ef502b031bd55c19cccb509b81ce4c3cf4a463312a79 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f50e358cce692da59d51031d31f8ad9a3df5e872288c2ad05f21748b46b5392d [INFO] running `Command { std: "docker" "start" "-a" "f50e358cce692da59d51031d31f8ad9a3df5e872288c2ad05f21748b46b5392d", 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] [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 0.36s [INFO] running `Command { std: "docker" "inspect" "f50e358cce692da59d51031d31f8ad9a3df5e872288c2ad05f21748b46b5392d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f50e358cce692da59d51031d31f8ad9a3df5e872288c2ad05f21748b46b5392d", kill_on_drop: false }` [INFO] [stdout] f50e358cce692da59d51031d31f8ad9a3df5e872288c2ad05f21748b46b5392d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0c44171a25d294450ca12e4fd123d11df1627f48b79b12b945137536064dc8f0 [INFO] running `Command { std: "docker" "start" "-a" "0c44171a25d294450ca12e4fd123d11df1627f48b79b12b945137536064dc8f0", 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 0.02s [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 ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- red_black_tree::tests::test_red_black_tree stdout ---- [INFO] [stdout] thread 'red_black_tree::tests::test_red_black_tree' panicked at src/red_black_tree.rs:261:80: [INFO] [stdout] called `Option::unwrap()` on a `None` value [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x558bc4decf35 - std::backtrace_rs::backtrace::libunwind::trace::hdfc9607bf31dbc86 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x558bc4decf35 - std::backtrace_rs::backtrace::trace_unsynchronized::h835e0ca3083fcb54 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x558bc4decf35 - std::sys::backtrace::_print_fmt::hf81d1bed8dde1f05 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x558bc4decf35 - ::fmt::h0e21387e4dc195e8 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x558bc4e13c1b - core::fmt::rt::Argument::fmt::hf0a2360aea19729b [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x558bc4e13c1b - core::fmt::write::h76a391ed15942408 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x558bc4dea2ff - std::io::Write::write_fmt::h3a6701c05eae4e21 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x558bc4dee751 - std::sys::backtrace::BacktraceLock::print::hfbac027926ddf935 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x558bc4dee751 - std::panicking::default_hook::{{closure}}::h901010a60b64ccc3 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x558bc4dee2f8 - std::panicking::default_hook::had7425277af071c7 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x558bc4dba3ba - as core::ops::function::Fn>::call::h0e74b18ddebb72fa [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 11: 0x558bc4dba3ba - test::test_main::{{closure}}::he27b357a2172d646 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x558bc4def05f - as core::ops::function::Fn>::call::ha2e26086c015e62d [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 13: 0x558bc4def05f - std::panicking::rust_panic_with_hook::hac0e92610e1e4d1b [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x558bc4deec53 - std::panicking::begin_panic_handler::{{closure}}::h1fb6563ca25c0091 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:664:13 [INFO] [stdout] 15: 0x558bc4ded3f9 - std::sys::backtrace::__rust_end_short_backtrace::he90d714ee124ec57 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x558bc4dee914 - rust_begin_unwind [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x558bc4e12553 - core::panicking::panic_fmt::h2c076b2ed9eeb82c [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x558bc4e125dc - core::panicking::panic::h1d4cb541d143c452 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panicking.rs:148:5 [INFO] [stdout] 19: 0x558bc4e12439 - core::option::unwrap_failed::h286fa05e7a71f0cb [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/option.rs:2017:5 [INFO] [stdout] 20: 0x558bc4d7ace3 - core::option::Option::unwrap::h98ca846a66172340 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/option.rs:967:21 [INFO] [stdout] 21: 0x558bc4d7ace3 - structures::red_black_tree::RedBlackTree::insert_fixup::he9830e16e8c5c52f [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:261:37 [INFO] [stdout] 22: 0x558bc4d7a857 - structures::red_black_tree::RedBlackTree::insert::h23003cb8eaf77ac9 [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:251:13 [INFO] [stdout] 23: 0x558bc4d7905a - structures::red_black_tree::RedBlackTree::tree_insert::h4f68175bcc6f8458 [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:62:9 [INFO] [stdout] 24: 0x558bc4d7df15 - structures::red_black_tree::tests::test_red_black_tree::h5c1ca7ea4b80b9c5 [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:509:9 [INFO] [stdout] 25: 0x558bc4d7ded7 - structures::red_black_tree::tests::test_red_black_tree::{{closure}}::ha9e8a2b3c7076fb0 [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:504:29 [INFO] [stdout] 26: 0x558bc4d7f076 - core::ops::function::FnOnce::call_once::h8a74f92603aa1f4c [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 27: 0x558bc4dbee8b - core::ops::function::FnOnce::call_once::hca6bde12b6a630f1 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 28: 0x558bc4dbee8b - test::__rust_begin_short_backtrace::h12810d14a702ebbc [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:620:18 [INFO] [stdout] 29: 0x558bc4dbe755 - test::run_test_in_process::{{closure}}::h59541574124f7772 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:643:60 [INFO] [stdout] 30: 0x558bc4dbe755 - as core::ops::function::FnOnce<()>>::call_once::h21b81f6278222813 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 31: 0x558bc4dbe755 - std::panicking::try::do_call::h95caa0508e76e60a [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:554:40 [INFO] [stdout] 32: 0x558bc4dbe755 - std::panicking::try::ha936e1facd3a2c2c [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:518:19 [INFO] [stdout] 33: 0x558bc4dbe755 - std::panic::catch_unwind::h5528768c35d92b58 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panic.rs:345:14 [INFO] [stdout] 34: 0x558bc4dbe755 - test::run_test_in_process::h90d0fae4cc0656ab [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:643:27 [INFO] [stdout] 35: 0x558bc4dbe755 - test::run_test::{{closure}}::hd832ed1086168438 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:564:43 [INFO] [stdout] 36: 0x558bc4d84024 - test::run_test::{{closure}}::h9fadb9f2ff3418ff [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:594:41 [INFO] [stdout] 37: 0x558bc4d84024 - std::sys::backtrace::__rust_begin_short_backtrace::h83762f6f2409a243 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 38: 0x558bc4d877f2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h30150ce916fdd544 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/thread/mod.rs:524:17 [INFO] [stdout] 39: 0x558bc4d877f2 - as core::ops::function::FnOnce<()>>::call_once::hc325bc97006a5368 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 40: 0x558bc4d877f2 - std::panicking::try::do_call::h3c463856408c67a4 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:554:40 [INFO] [stdout] 41: 0x558bc4d877f2 - std::panicking::try::h692f72559df6d3bf [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:518:19 [INFO] [stdout] 42: 0x558bc4d877f2 - std::panic::catch_unwind::h1dcc0ad4c36d774e [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panic.rs:345:14 [INFO] [stdout] 43: 0x558bc4d877f2 - std::thread::Builder::spawn_unchecked_::{{closure}}::hc95846b45d8ce7ce [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/thread/mod.rs:523:30 [INFO] [stdout] 44: 0x558bc4d877f2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h802463e6db21440a [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 45: 0x558bc4df31bb - as core::ops::function::FnOnce>::call_once::h186f3f12fe64acb3 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 46: 0x558bc4df31bb - as core::ops::function::FnOnce>::call_once::h58b0e3febdb462cc [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 47: 0x558bc4df31bb - std::sys::pal::unix::thread::Thread::new::thread_start::h146ca4d6d16f256f [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 48: 0x7f1a6368eac3 - [INFO] [stdout] 49: 0x7f1a6371fa04 - clone [INFO] [stdout] 50: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] red_black_tree::tests::test_red_black_tree [INFO] [stdout] [INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] running `Command { std: "docker" "inspect" "0c44171a25d294450ca12e4fd123d11df1627f48b79b12b945137536064dc8f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c44171a25d294450ca12e4fd123d11df1627f48b79b12b945137536064dc8f0", kill_on_drop: false }` [INFO] [stdout] 0c44171a25d294450ca12e4fd123d11df1627f48b79b12b945137536064dc8f0