[INFO] cloning repository https://github.com/morka17/binary_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/morka17/binary_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorka17%2Fbinary_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorka17%2Fbinary_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64988f8b28e91b0e410813e6c5332cf73fed5fe0
[INFO] testing morka17/binary_tree against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorka17%2Fbinary_tree" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/morka17/binary_tree
[INFO] finished tweaking git repo https://github.com/morka17/binary_tree
[INFO] tweaked toml for git repo https://github.com/morka17/binary_tree written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/morka17/binary_tree on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/morka17/binary_tree 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30135c34d3127226d624351e7ec2548090e219bd6c70b814c7cc0a91992521af
[INFO] running `Command { std: "docker" "start" "-a" "30135c34d3127226d624351e7ec2548090e219bd6c70b814c7cc0a91992521af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30135c34d3127226d624351e7ec2548090e219bd6c70b814c7cc0a91992521af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30135c34d3127226d624351e7ec2548090e219bd6c70b814c7cc0a91992521af", kill_on_drop: false }`
[INFO] [stdout] 30135c34d3127226d624351e7ec2548090e219bd6c70b814c7cc0a91992521af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3b21a172cdab1e3d2d0e7780c65a9bc8c0bb670c10d86852385d1a02a783482
[INFO] running `Command { std: "docker" "start" "-a" "d3b21a172cdab1e3d2d0e7780c65a9bc8c0bb670c10d86852385d1a02a783482", kill_on_drop: false }`
[INFO] [stderr]    Compiling binary_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/b_tree.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Node<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTree` is never constructed
[INFO] [stdout]   --> src/b_tree.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct BTree<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTreeProps` is never constructed
[INFO] [stdout]   --> src/b_tree.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct BTreeProps {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `is_leaf` are never used
[INFO] [stdout]   --> src/b_tree.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | / impl<T> Node<T>
[INFO] [stdout] 22 | | where
[INFO] [stdout] 23 | |     T: Ord,
[INFO] [stdout]    | |___________- associated items in this implementation
[INFO] [stdout] 24 |   {
[INFO] [stdout] 25 |       fn new(degree: usize, _keys: Option<Vec<T>>, _children: Option<Vec<Node<T>>>) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |       fn is_leaf(&self) -> bool {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_maxed_out`, `split_child`, `insert_non_full`, and `traverse_node` are never used
[INFO] [stdout]   --> src/b_tree.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl BTreeProps {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 44 |     fn new(degree: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn is_maxed_out<T: Ord + Copy>(&self, node: &Node<T>) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn split_child<T: Ord + Copy + Default>(&self, parent: &mut Node<T>, child_index: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     fn insert_non_full<T: Ord + Copy + Default>(&mut self, node: &mut Node<T>, key: T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     fn traverse_node<T: Ord + Debug>(node: &Node<T>, depth: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, `traverse`, and `search` are never used
[INFO] [stdout]    --> src/b_tree.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | / impl<T> BTree<T>
[INFO] [stdout] 114 | | where
[INFO] [stdout] 115 | |     T: Ord + Copy + Debug + Default,
[INFO] [stdout]     | |____________________________________- associated items in this implementation
[INFO] [stdout] 116 |   {
[INFO] [stdout] 117 |       pub fn new(branch_factor: usize) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |       pub fn insert(&mut self, key: T) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |       pub fn traverse(&self) {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |       pub fn search(&self, key: T) -> bool {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinarySearchTree` is never constructed
[INFO] [stdout]  --> src/b_search_tree.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct BinarySearchTree<T>
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/b_search_tree.rs:31:12
[INFO] [stdout]     |
[INFO] [stdout] 26  | / impl<T> BinarySearchTree<T>
[INFO] [stdout] 27  | | where
[INFO] [stdout] 28  | |     T: Ord,
[INFO] [stdout]     | |___________- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31  |       pub fn new() -> BinarySearchTree<T> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41  |       pub fn search(&self, value: &T) -> bool {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67  |       pub fn iter(&self) -> impl Iterator<Item = &T> {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72  |       pub fn insert(&mut self, value: T) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |       pub fn minimum(&self) -> Option<&T>{
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |       pub fn maximum(&self) -> Option<&T>{
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |       pub fn floor(&self, value: &T) -> Option<&T>{
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |       pub fn ceil(&self, value: &T) -> Option<&T>{
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinarySearchTreeIter` is never constructed
[INFO] [stdout]    --> src/b_search_tree.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 | struct BinarySearchTreeIter<'a, T>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `stack_push_left` are never used
[INFO] [stdout]    --> src/b_search_tree.rs:195:12
[INFO] [stdout]     |
[INFO] [stdout] 191 | / impl<'a, T> BinarySearchTreeIter<'a, T>
[INFO] [stdout] 192 | | where 
[INFO] [stdout] 193 | | T: Ord,
[INFO] [stdout]     | |_______- associated items in this implementation
[INFO] [stdout] 194 |   {
[INFO] [stdout] 195 |       pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T>{
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |       pub fn stack_push_left(&mut self){
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/b_search_tree.rs:195:22
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T>{
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<'_, T>{
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "d3b21a172cdab1e3d2d0e7780c65a9bc8c0bb670c10d86852385d1a02a783482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b21a172cdab1e3d2d0e7780c65a9bc8c0bb670c10d86852385d1a02a783482", kill_on_drop: false }`
[INFO] [stdout] d3b21a172cdab1e3d2d0e7780c65a9bc8c0bb670c10d86852385d1a02a783482
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40795f9fbd7c8d3e0bfad3a851b477d39f59eabc6c5ff36ea6ba89abebb19b0e
[INFO] running `Command { std: "docker" "start" "-a" "40795f9fbd7c8d3e0bfad3a851b477d39f59eabc6c5ff36ea6ba89abebb19b0e", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/b_tree.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Node<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTree` is never constructed
[INFO] [stdout]   --> src/b_tree.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct BTree<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTreeProps` is never constructed
[INFO] [stdout]   --> src/b_tree.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct BTreeProps {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `is_leaf` are never used
[INFO] [stdout]   --> src/b_tree.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | / impl<T> Node<T>
[INFO] [stdout] 22 | | where
[INFO] [stdout] 23 | |     T: Ord,
[INFO] [stdout]    | |___________- associated items in this implementation
[INFO] [stdout] 24 |   {
[INFO] [stdout] 25 |       fn new(degree: usize, _keys: Option<Vec<T>>, _children: Option<Vec<Node<T>>>) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |       fn is_leaf(&self) -> bool {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_maxed_out`, `split_child`, `insert_non_full`, and `traverse_node` are never used
[INFO] [stdout]   --> src/b_tree.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl BTreeProps {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 44 |     fn new(degree: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn is_maxed_out<T: Ord + Copy>(&self, node: &Node<T>) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn split_child<T: Ord + Copy + Default>(&self, parent: &mut Node<T>, child_index: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     fn insert_non_full<T: Ord + Copy + Default>(&mut self, node: &mut Node<T>, key: T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     fn traverse_node<T: Ord + Debug>(node: &Node<T>, depth: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, `traverse`, and `search` are never used
[INFO] [stdout]    --> src/b_tree.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | / impl<T> BTree<T>
[INFO] [stdout] 114 | | where
[INFO] [stdout] 115 | |     T: Ord + Copy + Debug + Default,
[INFO] [stdout]     | |____________________________________- associated items in this implementation
[INFO] [stdout] 116 |   {
[INFO] [stdout] 117 |       pub fn new(branch_factor: usize) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |       pub fn insert(&mut self, key: T) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |       pub fn traverse(&self) {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |       pub fn search(&self, key: T) -> bool {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinarySearchTree` is never constructed
[INFO] [stdout]  --> src/b_search_tree.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct BinarySearchTree<T>
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/b_search_tree.rs:31:12
[INFO] [stdout]     |
[INFO] [stdout] 26  | / impl<T> BinarySearchTree<T>
[INFO] [stdout] 27  | | where
[INFO] [stdout] 28  | |     T: Ord,
[INFO] [stdout]     | |___________- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31  |       pub fn new() -> BinarySearchTree<T> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41  |       pub fn search(&self, value: &T) -> bool {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67  |       pub fn iter(&self) -> impl Iterator<Item = &T> {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72  |       pub fn insert(&mut self, value: T) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |       pub fn minimum(&self) -> Option<&T>{
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |       pub fn maximum(&self) -> Option<&T>{
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |       pub fn floor(&self, value: &T) -> Option<&T>{
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |       pub fn ceil(&self, value: &T) -> Option<&T>{
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinarySearchTreeIter` is never constructed
[INFO] [stdout]    --> src/b_search_tree.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 | struct BinarySearchTreeIter<'a, T>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `stack_push_left` are never used
[INFO] [stdout]    --> src/b_search_tree.rs:195:12
[INFO] [stdout]     |
[INFO] [stdout] 191 | / impl<'a, T> BinarySearchTreeIter<'a, T>
[INFO] [stdout] 192 | | where 
[INFO] [stdout] 193 | | T: Ord,
[INFO] [stdout]     | |_______- associated items in this implementation
[INFO] [stdout] 194 |   {
[INFO] [stdout] 195 |       pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T>{
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |       pub fn stack_push_left(&mut self){
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/b_search_tree.rs:195:22
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T>{
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<'_, T>{
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling binary_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `traverse_node` is never used
[INFO] [stdout]   --> src/b_tree.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl BTreeProps {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99 |     fn traverse_node<T: Ord + Debug>(node: &Node<T>, depth: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `traverse` is never used
[INFO] [stdout]    --> src/b_tree.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | / impl<T> BTree<T>
[INFO] [stdout] 114 | | where
[INFO] [stdout] 115 | |     T: Ord + Copy + Debug + Default,
[INFO] [stdout]     | |____________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 134 |       pub fn traverse(&self) {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/b_search_tree.rs:195:22
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T>{
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<'_, T>{
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "40795f9fbd7c8d3e0bfad3a851b477d39f59eabc6c5ff36ea6ba89abebb19b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40795f9fbd7c8d3e0bfad3a851b477d39f59eabc6c5ff36ea6ba89abebb19b0e", kill_on_drop: false }`
[INFO] [stdout] 40795f9fbd7c8d3e0bfad3a851b477d39f59eabc6c5ff36ea6ba89abebb19b0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e102f274b1bf9b5516520027602c62824e8f754e2ebdf44ca9a9d20c093430d5
[INFO] running `Command { std: "docker" "start" "-a" "e102f274b1bf9b5516520027602c62824e8f754e2ebdf44ca9a9d20c093430d5", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]  --> src/b_tree.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Node<T> {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BTree` is never constructed
[INFO] [stderr]   --> src/b_tree.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct BTree<T> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BTreeProps` is never constructed
[INFO] [stderr]   --> src/b_tree.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct BTreeProps {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `is_leaf` are never used
[INFO] [stderr]   --> src/b_tree.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | / impl<T> Node<T>
[INFO] [stderr] 22 | | where
[INFO] [stderr] 23 | |     T: Ord,
[INFO] [stderr]    | |___________- associated items in this implementation
[INFO] [stderr] 24 |   {
[INFO] [stderr] 25 |       fn new(degree: usize, _keys: Option<Vec<T>>, _children: Option<Vec<Node<T>>>) -> Self {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |       fn is_leaf(&self) -> bool {
[INFO] [stderr]    |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `is_maxed_out`, `split_child`, `insert_non_full`, and `traverse_node` are never used
[INFO] [stderr]   --> src/b_tree.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | impl BTreeProps {
[INFO] [stderr]    | --------------- associated items in this implementation
[INFO] [stderr] 44 |     fn new(degree: usize) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 52 |     fn is_maxed_out<T: Ord + Copy>(&self, node: &Node<T>) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |     fn split_child<T: Ord + Copy + Default>(&self, parent: &mut Node<T>, child_index: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 78 |     fn insert_non_full<T: Ord + Copy + Default>(&mut self, node: &mut Node<T>, key: T) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 99 |     fn traverse_node<T: Ord + Debug>(node: &Node<T>, depth: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `insert`, `traverse`, and `search` are never used
[INFO] [stderr]    --> src/b_tree.rs:117:12
[INFO] [stderr]     |
[INFO] [stderr] 113 | / impl<T> BTree<T>
[INFO] [stderr] 114 | | where
[INFO] [stderr] 115 | |     T: Ord + Copy + Debug + Default,
[INFO] [stderr]     | |____________________________________- associated items in this implementation
[INFO] [stderr] 116 |   {
[INFO] [stderr] 117 |       pub fn new(branch_factor: usize) -> Self {
[INFO] [stderr]     |              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 125 |       pub fn insert(&mut self, key: T) {
[INFO] [stderr]     |              ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 134 |       pub fn traverse(&self) {
[INFO] [stderr]     |              ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 139 |       pub fn search(&self, key: T) -> bool {
[INFO] [stderr]     |              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BinarySearchTree` is never constructed
[INFO] [stderr]  --> src/b_search_tree.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct BinarySearchTree<T>
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/b_search_tree.rs:31:12
[INFO] [stderr]     |
[INFO] [stderr] 26  | / impl<T> BinarySearchTree<T>
[INFO] [stderr] 27  | | where
[INFO] [stderr] 28  | |     T: Ord,
[INFO] [stderr]     | |___________- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 31  |       pub fn new() -> BinarySearchTree<T> {
[INFO] [stderr]     |              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 41  |       pub fn search(&self, value: &T) -> bool {
[INFO] [stderr]     |              ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 67  |       pub fn iter(&self) -> impl Iterator<Item = &T> {
[INFO] [stderr]     |              ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 72  |       pub fn insert(&mut self, value: T) {
[INFO] [stderr]     |              ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 100 |       pub fn minimum(&self) -> Option<&T>{
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 108 |       pub fn maximum(&self) -> Option<&T>{
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 116 |       pub fn floor(&self, value: &T) -> Option<&T>{
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 149 |       pub fn ceil(&self, value: &T) -> Option<&T>{
[INFO] [stderr]     |              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BinarySearchTreeIter` is never constructed
[INFO] [stderr]    --> src/b_search_tree.rs:184:8
[INFO] [stderr]     |
[INFO] [stderr] 184 | struct BinarySearchTreeIter<'a, T>
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `stack_push_left` are never used
[INFO] [stderr]    --> src/b_search_tree.rs:195:12
[INFO] [stderr]     |
[INFO] [stderr] 191 | / impl<'a, T> BinarySearchTreeIter<'a, T>
[INFO] [stderr] 192 | | where 
[INFO] [stderr] 193 | | T: Ord,
[INFO] [stderr]     | |_______- associated items in this implementation
[INFO] [stderr] 194 |   {
[INFO] [stderr] 195 |       pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T>{
[INFO] [stderr]     |              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 201 |       pub fn stack_push_left(&mut self){
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/b_search_tree.rs:195:22
[INFO] [stderr]     |
[INFO] [stderr] 195 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T>{
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 195 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<'_, T>{
[INFO] [stderr]     |                                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: `binary_tree` (lib) generated 11 warnings
[INFO] [stderr] warning: associated function `traverse_node` is never used
[INFO] [stderr]   --> src/b_tree.rs:99:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | impl BTreeProps {
[INFO] [stderr]    | --------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 99 |     fn traverse_node<T: Ord + Debug>(node: &Node<T>, depth: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `traverse` is never used
[INFO] [stderr]    --> src/b_tree.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 113 | / impl<T> BTree<T>
[INFO] [stderr] 114 | | where
[INFO] [stderr] 115 | |     T: Ord + Copy + Debug + Default,
[INFO] [stderr]     | |____________________________________- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 134 |       pub fn traverse(&self) {
[INFO] [stderr]     |              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `binary_tree` (lib test) generated 3 warnings (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/binary_tree-ef4c0974db6dcca2)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test b_search_tree::test::test_maximum_and_minimum ... ok
[INFO] [stdout] test b_search_tree::test::test_iterator ... ok
[INFO] [stdout] test b_search_tree::test::test_search ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test b_search_tree::test::test_floor_and_ceil ... FAILED
[INFO] [stdout] test b_tree::test::test_search ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- b_search_tree::test::test_floor_and_ceil stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'b_search_tree::test::test_floor_and_ceil' panicked at src/b_search_tree.rs:310:18:
[INFO] [stdout] called `Option::unwrap()` on a `None` value
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58441d89ea52 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58441d89ea52 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58441d89ea52 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58441d89ea52 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58441d8c3bd3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58441d8c3bd3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x58441d89b9e3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58441d89b9e3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58441d89e8a2 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58441d89ffbc - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x58441d89fe12 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x58441d867f34 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x58441d867f34 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58441d8a099b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x58441d8a099b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x58441d8a0736 - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:699:13
[INFO] [stdout]   16:     0x58441d89ef49 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x58441d8a03fd - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x58441d8c2750 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x58441d8c27bc - core::panicking::panic::hd2a569f4f37f7e10
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:145:5
[INFO] [stdout]   20:     0x58441d8c26c9 - core::option::unwrap_failed::ha14784b3b8a80e23
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/option.rs:2072:5
[INFO] [stdout]   21:     0x58441d82e045 - core::option::Option<T>::unwrap::hf9c7ded37bbe1252
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/option.rs:1005:21
[INFO] [stdout]   22:     0x58441d82e045 - binary_tree::b_search_tree::test::test_floor_and_ceil::hcd90c5406a72b38b
[INFO] [stdout]   23:     0x58441d82b6a9 - binary_tree::b_search_tree::test::test_floor_and_ceil::{{closure}}::h8806d4f696099c40
[INFO] [stdout]                                at /opt/rustwide/workdir/src/b_search_tree.rs:286:29
[INFO] [stdout]   24:     0x58441d82b6a9 - core::ops::function::FnOnce::call_once::h742295aeb83aee30
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x58441d86d66b - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x58441d86d66b - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   27:     0x58441d86c8ae - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   28:     0x58441d86c8ae - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   29:     0x58441d86c8ae - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   30:     0x58441d86c8ae - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   31:     0x58441d86c8ae - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x58441d86c8ae - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   33:     0x58441d86c8ae - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   34:     0x58441d830454 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   35:     0x58441d830454 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   36:     0x58441d833dfa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   37:     0x58441d833dfa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   38:     0x58441d833dfa - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   39:     0x58441d833dfa - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   40:     0x58441d833dfa - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x58441d833dfa - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   42:     0x58441d833dfa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x58441d8a38f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x58441d8a38f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   45:     0x58441d8a38f7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   46:     0x700bc661baa4 - <unknown>
[INFO] [stdout]   47:     0x700bc66a8a34 - clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- b_tree::test::test_search stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'b_tree::test::test_search' panicked at src/b_tree.rs:60:41:
[INFO] [stdout] index out of bounds: the len is 0 but the index is 0
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58441d89ea52 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58441d89ea52 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58441d89ea52 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58441d89ea52 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58441d8c3bd3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58441d8c3bd3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x58441d89b9e3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58441d89b9e3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58441d89e8a2 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58441d89ffbc - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x58441d89fe12 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x58441d867f34 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x58441d867f34 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58441d8a099b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x58441d8a099b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x58441d8a076a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x58441d89ef49 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x58441d8a03fd - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x58441d8c2750 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x58441d8c28b1 - core::panicking::panic_bounds_check::hae8b7dcf0e85b3a1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:280:5
[INFO] [stdout]   20:     0x58441d82cbb1 - <usize as core::slice::index::SliceIndex<[T]>>::index_mut::h433fdaf55f1ee832
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/slice/index.rs:275:14
[INFO] [stdout]   21:     0x58441d82cbb1 - core::slice::index::<impl core::ops::index::IndexMut<I> for [T]>::index_mut::h8d5723054f72aeab
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/slice/index.rs:28:15
[INFO] [stdout]   22:     0x58441d82cbb1 - <alloc::vec::Vec<T,A> as core::ops::index::IndexMut<I>>::index_mut::h4eeb33a3126f4600
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/vec/mod.rs:3471:9
[INFO] [stdout]   23:     0x58441d82cbb1 - binary_tree::b_tree::BTreeProps::split_child::hdc1a2e27f6cf3210
[INFO] [stdout]                                at /opt/rustwide/workdir/src/b_tree.rs:60:41
[INFO] [stdout]   24:     0x58441d82cd11 - binary_tree::b_tree::BTree<T>::insert::h1909ac38cafbaee3
[INFO] [stdout]                                at /opt/rustwide/workdir/src/b_tree.rs:129:24
[INFO] [stdout]   25:     0x58441d82b76c - binary_tree::b_tree::test::test_search::hda8526d7b91ea06f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/b_tree.rs:170:14
[INFO] [stdout]   26:     0x58441d82b76c - binary_tree::b_tree::test::test_search::{{closure}}::h3664118b1ba7af06
[INFO] [stdout]                                at /opt/rustwide/workdir/src/b_tree.rs:165:21
[INFO] [stdout]   27:     0x58441d82b76c - core::ops::function::FnOnce::call_once::hc1c83a80885bbd82
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x58441d86d66b - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x58441d86d66b - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   30:     0x58441d86c8ae - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   31:     0x58441d86c8ae - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   32:     0x58441d86c8ae - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   33:     0x58441d86c8ae - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   34:     0x58441d86c8ae - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x58441d86c8ae - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   36:     0x58441d86c8ae - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   37:     0x58441d830454 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   38:     0x58441d830454 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   39:     0x58441d833dfa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   40:     0x58441d833dfa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   41:     0x58441d833dfa - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   42:     0x58441d833dfa - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   43:     0x58441d833dfa - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   44:     0x58441d833dfa - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   45:     0x58441d833dfa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x58441d8a38f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   47:     0x58441d8a38f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   48:     0x58441d8a38f7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   49:     0x700bc661baa4 - <unknown>
[INFO] [stdout]   50:     0x700bc66a8a34 - clone
[INFO] [stdout]   51:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     b_search_tree::test::test_floor_and_ceil
[INFO] [stdout]     b_tree::test::test_search
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e102f274b1bf9b5516520027602c62824e8f754e2ebdf44ca9a9d20c093430d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e102f274b1bf9b5516520027602c62824e8f754e2ebdf44ca9a9d20c093430d5", kill_on_drop: false }`
[INFO] [stdout] e102f274b1bf9b5516520027602c62824e8f754e2ebdf44ca9a9d20c093430d5
