[INFO] cloning repository https://github.com/dinaraparanid/2-3-B-Tree-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dinaraparanid/2-3-B-Tree-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdinaraparanid%2F2-3-B-Tree-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdinaraparanid%2F2-3-B-Tree-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fcf7e41836c872c566cac45743638b164bee490b
[INFO] checking dinaraparanid/2-3-B-Tree-rs against nightly-2024-02-05 for check-cfg
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdinaraparanid%2F2-3-B-Tree-rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dinaraparanid/2-3-B-Tree-rs on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dinaraparanid/2-3-B-Tree-rs
[INFO] finished tweaking git repo https://github.com/dinaraparanid/2-3-B-Tree-rs
[INFO] tweaked toml for git repo https://github.com/dinaraparanid/2-3-B-Tree-rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dinaraparanid/2-3-B-Tree-rs 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking dinaraparanid/2-3-B-Tree-rs against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdinaraparanid%2F2-3-B-Tree-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dinaraparanid/2-3-B-Tree-rs on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dinaraparanid/2-3-B-Tree-rs
[INFO] finished tweaking git repo https://github.com/dinaraparanid/2-3-B-Tree-rs
[INFO] tweaked toml for git repo https://github.com/dinaraparanid/2-3-B-Tree-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dinaraparanid/2-3-B-Tree-rs 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" "+nightly-2024-02-05" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking dinaraparanid/2-3-B-Tree-rs against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdinaraparanid%2F2-3-B-Tree-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dinaraparanid/2-3-B-Tree-rs on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dinaraparanid/2-3-B-Tree-rs
[INFO] finished tweaking git repo https://github.com/dinaraparanid/2-3-B-Tree-rs
[INFO] tweaked toml for git repo https://github.com/dinaraparanid/2-3-B-Tree-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dinaraparanid/2-3-B-Tree-rs 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" "+nightly-2024-02-05" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cefba26c835a7aad8aeef0fba5d9da75c1553134193906b9f3e0b06f778f48f7
[INFO] running `Command { std: "docker" "start" "-a" "cefba26c835a7aad8aeef0fba5d9da75c1553134193906b9f3e0b06f778f48f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cefba26c835a7aad8aeef0fba5d9da75c1553134193906b9f3e0b06f778f48f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cefba26c835a7aad8aeef0fba5d9da75c1553134193906b9f3e0b06f778f48f7", kill_on_drop: false }`
[INFO] [stdout] cefba26c835a7aad8aeef0fba5d9da75c1553134193906b9f3e0b06f778f48f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 8be76f6b8b1db5d85bd2db7faa1efdfc63f2b41db336405c78c7a319f3a0e48b
[INFO] running `Command { std: "docker" "start" "-a" "8be76f6b8b1db5d85bd2db7faa1efdfc63f2b41db336405c78c7a319f3a0e48b", kill_on_drop: false }`
[INFO] [stderr]     Checking kek v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `MAX_CHILDREN` is never used
[INFO] [stdout]   --> src/main.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     const MAX_CHILDREN: usize = 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/main.rs:214:16
[INFO] [stdout]     |
[INFO] [stdout] 204 |     impl<T: Ord + Eq + Clone> BTreeNode<T> {
[INFO] [stdout]     |     -------------------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 214 |         pub fn is_node(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 219 |         pub fn unwrap_as_leaf(&self) -> &BTreeLeaf<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 227 |         pub fn unwrap_as_leaf_mut(&mut self) -> &mut BTreeLeaf<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |         pub fn unwrap_as_subtree(&self) -> &BTreeSubTree<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 267 |         pub fn unwrap_as_subtree_mut(&mut self) -> &mut BTreeSubTree<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |         pub fn get_parent(&self) -> Option<&Weak<RefCell<BTreeNode<T>>>> {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 291 |         pub fn get_parent_mut(&mut self) -> Option<&mut Weak<RefCell<BTreeNode<T>>>> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 315 |         pub fn get_values_mut(&mut self) -> &mut Vec<Rc<T>> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 341 |         pub fn first(this: Rc<RefCell<Self>>) -> Option<Rc<T>> {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 352 |         pub fn last_leaf(this: Rc<RefCell<Self>>) -> Rc<RefCell<Self>> {
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 371 |         pub fn last(this: Rc<RefCell<Self>>) -> Option<Rc<T>> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 405 |         pub fn get(this: Rc<RefCell<Self>>, index: usize) -> Rc<T> {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 442 |         pub fn find(this: Rc<RefCell<Self>>, value: &T) -> Rc<RefCell<Self>> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/main.rs:467:16
[INFO] [stdout]     |
[INFO] [stdout] 460 |     impl<T: Ord + Eq + Clone> BTree<T> {
[INFO] [stdout]     |     ---------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 467 |         pub fn len(&self) -> usize {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 475 |         pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 480 |         pub fn is_not_empty(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 835 |         pub fn first(&self) -> Option<Rc<T>> {
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 843 |         pub fn last(&self) -> Option<Rc<T>> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 851 |         pub fn iter(&self) -> BTreeIter<T> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 860 |         pub unsafe fn get_unchecked(&self, index: usize) -> Rc<T> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 865 |         pub fn get(&self, index: usize) -> Option<Rc<T>> {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 874 |         pub fn find(&self, value: &T) -> BTreeIter<T> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_CHILDREN` is never used
[INFO] [stdout]   --> src/main.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     const MAX_CHILDREN: usize = 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/main.rs:214:16
[INFO] [stdout]     |
[INFO] [stdout] 204 |     impl<T: Ord + Eq + Clone> BTreeNode<T> {
[INFO] [stdout]     |     -------------------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 214 |         pub fn is_node(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 219 |         pub fn unwrap_as_leaf(&self) -> &BTreeLeaf<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 227 |         pub fn unwrap_as_leaf_mut(&mut self) -> &mut BTreeLeaf<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |         pub fn unwrap_as_subtree(&self) -> &BTreeSubTree<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 267 |         pub fn unwrap_as_subtree_mut(&mut self) -> &mut BTreeSubTree<T> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |         pub fn get_parent(&self) -> Option<&Weak<RefCell<BTreeNode<T>>>> {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 291 |         pub fn get_parent_mut(&mut self) -> Option<&mut Weak<RefCell<BTreeNode<T>>>> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 315 |         pub fn get_values_mut(&mut self) -> &mut Vec<Rc<T>> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 442 |         pub fn find(this: Rc<RefCell<Self>>, value: &T) -> Rc<RefCell<Self>> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_empty`, `is_not_empty`, and `find` are never used
[INFO] [stdout]    --> src/main.rs:475:16
[INFO] [stdout]     |
[INFO] [stdout] 460 |     impl<T: Ord + Eq + Clone> BTree<T> {
[INFO] [stdout]     |     ---------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 475 |         pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 480 |         pub fn is_not_empty(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 874 |         pub fn find(&self, value: &T) -> BTreeIter<T> {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "8be76f6b8b1db5d85bd2db7faa1efdfc63f2b41db336405c78c7a319f3a0e48b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be76f6b8b1db5d85bd2db7faa1efdfc63f2b41db336405c78c7a319f3a0e48b", kill_on_drop: false }`
[INFO] [stdout] 8be76f6b8b1db5d85bd2db7faa1efdfc63f2b41db336405c78c7a319f3a0e48b
