[INFO] cloning repository https://github.com/kyzooghost/RustInPeace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kyzooghost/RustInPeace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyzooghost%2FRustInPeace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyzooghost%2FRustInPeace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65dd83350e1348bf369e9aa203944846bba245c7
[INFO] testing kyzooghost/RustInPeace against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyzooghost%2FRustInPeace" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kyzooghost/RustInPeace
[INFO] finished tweaking git repo https://github.com/kyzooghost/RustInPeace
[INFO] tweaked toml for git repo https://github.com/kyzooghost/RustInPeace written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kyzooghost/RustInPeace on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kyzooghost/RustInPeace 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4b49f6c226ab8a676ea7aa34df3d821e10995c2be7d9d2fc7c86f751bbf2ade
[INFO] running `Command { std: "docker" "start" "-a" "d4b49f6c226ab8a676ea7aa34df3d821e10995c2be7d9d2fc7c86f751bbf2ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4b49f6c226ab8a676ea7aa34df3d821e10995c2be7d9d2fc7c86f751bbf2ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b49f6c226ab8a676ea7aa34df3d821e10995c2be7d9d2fc7c86f751bbf2ade", kill_on_drop: false }`
[INFO] [stdout] d4b49f6c226ab8a676ea7aa34df3d821e10995c2be7d9d2fc7c86f751bbf2ade
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d3396204f92ec53d07a3e5b1ff9c433450644e570bde22b6f12a11523bb16fa
[INFO] running `Command { std: "docker" "start" "-a" "4d3396204f92ec53d07a3e5b1ff9c433450644e570bde22b6f12a11523bb16fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.48
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.22
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling my-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `num_of_keys`, `isEmpty`, and `keys` are never used
[INFO] [stdout]   --> src/utils/LinearProbingHashTable.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | / impl<T: Copy + Clone + PartialOrd + PartialEq + std::fmt::Debug + Hash
[INFO] [stdout] 13 | | , U: Copy + Clone + PartialOrd + PartialEq + std::fmt::Debug> 
[INFO] [stdout] 14 | |     LinearProbingHashTable<T, U> {
[INFO] [stdout]    | |________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |       pub fn num_of_keys(&self) -> usize {self.num_of_keys}
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 18 |       pub fn isEmpty(&self) -> bool {self.num_of_keys == 0}
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |       pub fn keys(&self) -> Vec<&T> {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IntoIter` is never constructed
[INFO] [stdout]   --> src/utils/RedBlackBST.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct IntoIter<T: Clone + PartialOrd + PartialEq + Copy + std::fmt::Debug, U: Clone + PartialOrd + PartialEq + Copy>(RedBlackBST<T, ...
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/utils/RedBlackBST.rs:148:12
[INFO] [stdout]     |
[INFO] [stdout]  26 | impl<T: Clone + PartialOrd + PartialEq + Copy + std::fmt::Debug, U: Clone + PartialOrd + PartialEq + Copy> RedBlackBST<T, U> {
[INFO] [stdout]     | ---------------------------------------------------------------------------------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 148 |     pub fn is23(&self) -> bool {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn isBalanced(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 299 |     pub fn floor(&self, key: T) -> Option<T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 325 |     pub fn ceiling(&self, key: T) -> Option<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 364 |     pub fn rank(&self, key: T) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 381 |     pub fn peek_at_root(&self) -> Option<(&T, &U)> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 388 |     pub fn peek_mut_at_root(&mut self) -> Option<(&mut T, &mut U)> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 395 |     pub fn into_iter(self) -> IntoIter<T, U> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 399 |     pub fn height(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 423 |     pub fn all_keys(&self) -> Vec<T> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 428 |     pub fn keys(&self, low_key: T, high_key: T) -> Vec<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 623 |     pub fn printTree(&self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "4d3396204f92ec53d07a3e5b1ff9c433450644e570bde22b6f12a11523bb16fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d3396204f92ec53d07a3e5b1ff9c433450644e570bde22b6f12a11523bb16fa", kill_on_drop: false }`
[INFO] [stdout] 4d3396204f92ec53d07a3e5b1ff9c433450644e570bde22b6f12a11523bb16fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c7501647309f307412e52f0c69b66b68a8711da6b0936a8e7945322f7440cf1
[INFO] running `Command { std: "docker" "start" "-a" "6c7501647309f307412e52f0c69b66b68a8711da6b0936a8e7945322f7440cf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling my-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `num_of_keys`, `isEmpty`, and `keys` are never used
[INFO] [stdout]   --> src/utils/LinearProbingHashTable.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | / impl<T: Copy + Clone + PartialOrd + PartialEq + std::fmt::Debug + Hash
[INFO] [stdout] 13 | | , U: Copy + Clone + PartialOrd + PartialEq + std::fmt::Debug> 
[INFO] [stdout] 14 | |     LinearProbingHashTable<T, U> {
[INFO] [stdout]    | |________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |       pub fn num_of_keys(&self) -> usize {self.num_of_keys}
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 18 |       pub fn isEmpty(&self) -> bool {self.num_of_keys == 0}
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |       pub fn keys(&self) -> Vec<&T> {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IntoIter` is never constructed
[INFO] [stdout]   --> src/utils/RedBlackBST.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct IntoIter<T: Clone + PartialOrd + PartialEq + Copy + std::fmt::Debug, U: Clone + PartialOrd + PartialEq + Copy>(RedBlackBST<T, ...
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/utils/RedBlackBST.rs:148:12
[INFO] [stdout]     |
[INFO] [stdout]  26 | impl<T: Clone + PartialOrd + PartialEq + Copy + std::fmt::Debug, U: Clone + PartialOrd + PartialEq + Copy> RedBlackBST<T, U> {
[INFO] [stdout]     | ---------------------------------------------------------------------------------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 148 |     pub fn is23(&self) -> bool {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn isBalanced(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 299 |     pub fn floor(&self, key: T) -> Option<T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 325 |     pub fn ceiling(&self, key: T) -> Option<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 364 |     pub fn rank(&self, key: T) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 381 |     pub fn peek_at_root(&self) -> Option<(&T, &U)> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 388 |     pub fn peek_mut_at_root(&mut self) -> Option<(&mut T, &mut U)> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 395 |     pub fn into_iter(self) -> IntoIter<T, U> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 399 |     pub fn height(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 423 |     pub fn all_keys(&self) -> Vec<T> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 428 |     pub fn keys(&self, low_key: T, high_key: T) -> Vec<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 623 |     pub fn printTree(&self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "6c7501647309f307412e52f0c69b66b68a8711da6b0936a8e7945322f7440cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c7501647309f307412e52f0c69b66b68a8711da6b0936a8e7945322f7440cf1", kill_on_drop: false }`
[INFO] [stdout] 6c7501647309f307412e52f0c69b66b68a8711da6b0936a8e7945322f7440cf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b10bdb157c775f765be6ffaeeccbec942cdd1f8fe00c15bbfd54623b19495a2d
[INFO] running `Command { std: "docker" "start" "-a" "b10bdb157c775f765be6ffaeeccbec942cdd1f8fe00c15bbfd54623b19495a2d", kill_on_drop: false }`
[INFO] [stderr] warning: methods `num_of_keys`, `isEmpty`, and `keys` are never used
[INFO] [stderr]   --> src/utils/LinearProbingHashTable.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | / impl<T: Copy + Clone + PartialOrd + PartialEq + std::fmt::Debug + Hash
[INFO] [stderr] 13 | | , U: Copy + Clone + PartialOrd + PartialEq + std::fmt::Debug> 
[INFO] [stderr] 14 | |     LinearProbingHashTable<T, U> {
[INFO] [stderr]    | |________________________________- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 17 |       pub fn num_of_keys(&self) -> usize {self.num_of_keys}
[INFO] [stderr]    |              ^^^^^^^^^^^
[INFO] [stderr] 18 |       pub fn isEmpty(&self) -> bool {self.num_of_keys == 0}
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |       pub fn keys(&self) -> Vec<&T> {
[INFO] [stderr]    |              ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `IntoIter` is never constructed
[INFO] [stderr]   --> src/utils/RedBlackBST.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct IntoIter<T: Clone + PartialOrd + PartialEq + Copy + std::fmt::Debug, U: Clone + PartialOrd + PartialEq + Copy>(RedBlackBST<T, ...
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple methods are never used
[INFO] [stderr]    --> src/utils/RedBlackBST.rs:148:12
[INFO] [stderr]     |
[INFO] [stderr]  26 | impl<T: Clone + PartialOrd + PartialEq + Copy + std::fmt::Debug, U: Clone + PartialOrd + PartialEq + Copy> RedBlackBST<T, U> {
[INFO] [stderr]     | ---------------------------------------------------------------------------------------------------------------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 148 |     pub fn is23(&self) -> bool {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 165 |     fn isBalanced(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 299 |     pub fn floor(&self, key: T) -> Option<T> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 325 |     pub fn ceiling(&self, key: T) -> Option<T> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 364 |     pub fn rank(&self, key: T) -> usize {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 381 |     pub fn peek_at_root(&self) -> Option<(&T, &U)> {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 388 |     pub fn peek_mut_at_root(&mut self) -> Option<(&mut T, &mut U)> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 395 |     pub fn into_iter(self) -> IntoIter<T, U> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 399 |     pub fn height(&self) -> usize {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 423 |     pub fn all_keys(&self) -> Vec<T> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 428 |     pub fn keys(&self, low_key: T, high_key: T) -> Vec<T> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 623 |     pub fn printTree(&self) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `my-project` (bin "my-project" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/my_project-436dab11519463b8)
[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" "b10bdb157c775f765be6ffaeeccbec942cdd1f8fe00c15bbfd54623b19495a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b10bdb157c775f765be6ffaeeccbec942cdd1f8fe00c15bbfd54623b19495a2d", kill_on_drop: false }`
[INFO] [stdout] b10bdb157c775f765be6ffaeeccbec942cdd1f8fe00c15bbfd54623b19495a2d
