[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 [INFO] testing LegendarySaiyan/structures against try#5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b for pr-128254 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLegendarySaiyan%2Fstructures" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LegendarySaiyan/structures on toolchain 5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "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-tc2/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" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 25b3825bb3620d9148c3d2217ec30648cfed7fe9185346649224187bd73cb131 [INFO] running `Command { std: "docker" "start" "-a" "25b3825bb3620d9148c3d2217ec30648cfed7fe9185346649224187bd73cb131", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "25b3825bb3620d9148c3d2217ec30648cfed7fe9185346649224187bd73cb131", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25b3825bb3620d9148c3d2217ec30648cfed7fe9185346649224187bd73cb131", kill_on_drop: false }` [INFO] [stdout] 25b3825bb3620d9148c3d2217ec30648cfed7fe9185346649224187bd73cb131 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4d8251fb2896c1db8231d82952789d8b8c441ef4783aec7f4f354275581ca666 [INFO] running `Command { std: "docker" "start" "-a" "4d8251fb2896c1db8231d82952789d8b8c441ef4783aec7f4f354275581ca666", 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" "4d8251fb2896c1db8231d82952789d8b8c441ef4783aec7f4f354275581ca666", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d8251fb2896c1db8231d82952789d8b8c441ef4783aec7f4f354275581ca666", kill_on_drop: false }` [INFO] [stdout] 4d8251fb2896c1db8231d82952789d8b8c441ef4783aec7f4f354275581ca666 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de2048bec63ad57ebb030618ba3b3cc666a2c1993aeb35899a9cf5ac05f48814 [INFO] running `Command { std: "docker" "start" "-a" "de2048bec63ad57ebb030618ba3b3cc666a2c1993aeb35899a9cf5ac05f48814", 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] [stderr] Compiling structures v0.1.0 (/opt/rustwide/workdir) [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 0.17s [INFO] running `Command { std: "docker" "inspect" "de2048bec63ad57ebb030618ba3b3cc666a2c1993aeb35899a9cf5ac05f48814", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de2048bec63ad57ebb030618ba3b3cc666a2c1993aeb35899a9cf5ac05f48814", kill_on_drop: false }` [INFO] [stdout] de2048bec63ad57ebb030618ba3b3cc666a2c1993aeb35899a9cf5ac05f48814 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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" "+5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3211d2b6b18fc18aa63aede74c6ce8ff5167d29a68ee946805df28d655dd7ed2 [INFO] running `Command { std: "docker" "start" "-a" "3211d2b6b18fc18aa63aede74c6ce8ff5167d29a68ee946805df28d655dd7ed2", 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 ... 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: 0x55ea07f03f95 - std::backtrace_rs::backtrace::libunwind::trace::h68acc96dd29bfb25 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x55ea07f03f95 - std::backtrace_rs::backtrace::trace_unsynchronized::hc833f810d39d5258 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55ea07f03f95 - std::sys::backtrace::_print_fmt::h5f23caa5b7652308 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x55ea07f03f95 - ::fmt::hc81f55a2b3efffd1 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x55ea07f2b18b - core::fmt::rt::Argument::fmt::h731d8ba6b9c446d6 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x55ea07f2b18b - core::fmt::write::h6e5816e68b47f713 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x55ea07f0135f - std::io::Write::write_fmt::h3726facc0aa8eb67 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x55ea07f057b1 - std::sys::backtrace::BacktraceLock::print::hb98272574ac3b700 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x55ea07f057b1 - std::panicking::default_hook::{{closure}}::h979aa01ca70f7f8f [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x55ea07f05358 - std::panicking::default_hook::h17e52f086133e6fd [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x55ea07ed146a - as core::ops::function::Fn>::call::h4e1615f02d9f709a [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 11: 0x55ea07ed146a - test::test_main::{{closure}}::hc8df444856fcb257 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x55ea07f060bf - as core::ops::function::Fn>::call::hac606c4d68b970a6 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 13: 0x55ea07f060bf - std::panicking::rust_panic_with_hook::h694bfcec6451de5a [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x55ea07f05cb3 - std::panicking::begin_panic_handler::{{closure}}::hbd9f22f307951c96 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:664:13 [INFO] [stdout] 15: 0x55ea07f04459 - std::sys::backtrace::__rust_end_short_backtrace::h6e4502eb3c3e7834 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x55ea07f05974 - rust_begin_unwind [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x55ea07f29ac3 - core::panicking::panic_fmt::ha6b90685af50061f [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x55ea07f29b4c - core::panicking::panic::h38510eadf9b2eebe [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/panicking.rs:148:5 [INFO] [stdout] 19: 0x55ea07f299a9 - core::option::unwrap_failed::hb5fe16f2255a8e3e [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/option.rs:2017:5 [INFO] [stdout] 20: 0x55ea07e91d93 - core::option::Option::unwrap::h049dc5651f67c11b [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/option.rs:967:21 [INFO] [stdout] 21: 0x55ea07e91d93 - structures::red_black_tree::RedBlackTree::insert_fixup::hceeeac9f4877e144 [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:261:37 [INFO] [stdout] 22: 0x55ea07e91907 - structures::red_black_tree::RedBlackTree::insert::he712c8bf2f78b5e4 [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:251:13 [INFO] [stdout] 23: 0x55ea07e9010a - structures::red_black_tree::RedBlackTree::tree_insert::hf8088c9a2c79409d [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:62:9 [INFO] [stdout] 24: 0x55ea07e94fc5 - structures::red_black_tree::tests::test_red_black_tree::hb26a2f667efeb1f6 [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:509:9 [INFO] [stdout] 25: 0x55ea07e94f87 - structures::red_black_tree::tests::test_red_black_tree::{{closure}}::h7a98c9eaa8bd2ac1 [INFO] [stdout] at /opt/rustwide/workdir/src/red_black_tree.rs:504:29 [INFO] [stdout] 26: 0x55ea07e96146 - core::ops::function::FnOnce::call_once::hd455f39bed6ffa10 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 27: 0x55ea07ed5feb - core::ops::function::FnOnce::call_once::h321fab3f659b8f1c [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 28: 0x55ea07ed5feb - test::__rust_begin_short_backtrace::h7bcdd7ef45d5d11d [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/test/src/lib.rs:620:18 [INFO] [stdout] 29: 0x55ea07ed5805 - test::run_test_in_process::{{closure}}::h7e5c4c77b843c962 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/test/src/lib.rs:643:60 [INFO] [stdout] 30: 0x55ea07ed5805 - as core::ops::function::FnOnce<()>>::call_once::h9465365bda0c96e1 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 31: 0x55ea07ed5805 - std::panicking::try::do_call::h464859d60fe36ac8 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:554:40 [INFO] [stdout] 32: 0x55ea07ed5805 - std::panicking::try::h10bb685f1ad0ff38 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:518:19 [INFO] [stdout] 33: 0x55ea07ed5805 - std::panic::catch_unwind::hf3392dbe1556c5c7 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panic.rs:345:14 [INFO] [stdout] 34: 0x55ea07ed5805 - test::run_test_in_process::hc7c0ab6dab190e49 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/test/src/lib.rs:643:27 [INFO] [stdout] 35: 0x55ea07ed5805 - test::run_test::{{closure}}::hdb2183b5de946a08 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/test/src/lib.rs:564:43 [INFO] [stdout] 36: 0x55ea07e9b0d4 - test::run_test::{{closure}}::h8dcd9e4e5e3fbe5f [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/test/src/lib.rs:594:41 [INFO] [stdout] 37: 0x55ea07e9b0d4 - std::sys::backtrace::__rust_begin_short_backtrace::h41bf17e9b9ace8bc [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 38: 0x55ea07e9e8a2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h63bd96fcdd52032f [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/thread/mod.rs:524:17 [INFO] [stdout] 39: 0x55ea07e9e8a2 - as core::ops::function::FnOnce<()>>::call_once::ha8ff5ca2e19c8b3f [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 40: 0x55ea07e9e8a2 - std::panicking::try::do_call::h2c72967242944c46 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:554:40 [INFO] [stdout] 41: 0x55ea07e9e8a2 - std::panicking::try::h84beb938f6030c53 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panicking.rs:518:19 [INFO] [stdout] 42: 0x55ea07e9e8a2 - std::panic::catch_unwind::hca4383a7a644e749 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/panic.rs:345:14 [INFO] [stdout] 43: 0x55ea07e9e8a2 - std::thread::Builder::spawn_unchecked_::{{closure}}::h88915884a74f8e2a [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/thread/mod.rs:523:30 [INFO] [stdout] 44: 0x55ea07e9e8a2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4c032c9efdb7212a [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 45: 0x55ea07f0a21b - as core::ops::function::FnOnce>::call_once::h809cb44187f4e360 [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 46: 0x55ea07f0a21b - as core::ops::function::FnOnce>::call_once::h670f08f0ab61db1b [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 47: 0x55ea07f0a21b - std::sys::pal::unix::thread::Thread::new::thread_start::hee2b0396d7ed5bcb [INFO] [stdout] at /rustc/5e89635d7bf1d3033c2eb20378b7b3cbe2dd1a9b/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 48: 0x7efcc8692ac3 - [INFO] [stdout] 49: 0x7efcc8723a04 - 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 0.01s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] running `Command { std: "docker" "inspect" "3211d2b6b18fc18aa63aede74c6ce8ff5167d29a68ee946805df28d655dd7ed2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3211d2b6b18fc18aa63aede74c6ce8ff5167d29a68ee946805df28d655dd7ed2", kill_on_drop: false }` [INFO] [stdout] 3211d2b6b18fc18aa63aede74c6ce8ff5167d29a68ee946805df28d655dd7ed2