[INFO] cloning repository https://github.com/fhbzyc/rust_practise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fhbzyc/rust_practise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhbzyc%2Frust_practise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhbzyc%2Frust_practise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0323d88e7714e28d9c612610e0a8129b08019218
[INFO] checking fhbzyc/rust_practise against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffhbzyc%2Frust_practise" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fhbzyc/rust_practise on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fhbzyc/rust_practise
[INFO] finished tweaking git repo https://github.com/fhbzyc/rust_practise
[INFO] tweaked toml for git repo https://github.com/fhbzyc/rust_practise written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/fhbzyc/rust_practise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f240767f65898ff678e5cac7f1b131776444d47337086153c12190b27a862fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1f240767f65898ff678e5cac7f1b131776444d47337086153c12190b27a862fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f240767f65898ff678e5cac7f1b131776444d47337086153c12190b27a862fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f240767f65898ff678e5cac7f1b131776444d47337086153c12190b27a862fc", kill_on_drop: false }`
[INFO] [stdout] 1f240767f65898ff678e5cac7f1b131776444d47337086153c12190b27a862fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e08c675a60888051fd8e8084ae7dc146052881bc05e6acc8cf02097d913ee41
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2e08c675a60888051fd8e8084ae7dc146052881bc05e6acc8cf02097d913ee41", kill_on_drop: false }`
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool/thread_pool.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `workers`
[INFO] [stdout]  --> src/thread_pool/thread_pool.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/thread_pool/thread_pool.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     id: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread`
[INFO] [stdout]   --> src/thread_pool/thread_pool.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool/thread_pool.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `workers`
[INFO] [stdout]  --> src/thread_pool/thread_pool.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     workers: Vec<Worker>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/thread_pool/thread_pool.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     id: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread`
[INFO] [stdout]   --> src/thread_pool/thread_pool.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cmp`
[INFO] [stdout]    --> src/tree/blance_tree.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |             cmp::max(
[INFO] [stdout]     |             ^^^ use of undeclared crate or module `cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RefCell` in this scope
[INFO] [stdout]   --> src/tree/blance_tree.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 | type TreeNode<T> = Rc<RefCell<Node<T>>>;
[INFO] [stdout]    |                       ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Weak` in this scope
[INFO] [stdout]   --> src/tree/blance_tree.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 | type ParentNode<T> = Weak<RefCell<Node<T>>>;
[INFO] [stdout]    |                      ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::rc::Weak;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::sync::Weak;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RefCell` in this scope
[INFO] [stdout]   --> src/tree/blance_tree.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 | type ParentNode<T> = Weak<RefCell<Node<T>>>;
[INFO] [stdout]    |                           ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RefCell`
[INFO] [stdout]   --> src/tree/blance_tree.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Rc::new(RefCell::new(node))
[INFO] [stdout]    |                 ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Weak`
[INFO] [stdout]    --> src/tree/blance_tree.rs:110:34
[INFO] [stdout]     |
[INFO] [stdout] 110 |                     let parent = Weak::upgrade(&node).unwrap();
[INFO] [stdout]     |                                  ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::rc::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::sync::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RefCell` in this scope
[INFO] [stdout]    --> src/tree/blance_tree.rs:157:21
[INFO] [stdout]     |
[INFO] [stdout] 157 |     root: Option<Rc<RefCell<Node<T>>>>,
[INFO] [stdout]     |                     ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::cell::RefCell;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::cell::RefCell;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RefCell` in this scope
[INFO] [stdout]    --> src/tree/blance_tree.rs:172:29
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn select_node(node: Rc<RefCell<Node<T>>>, key: i64) -> Option<TreeNode<T>> {
[INFO] [stdout]     |                             ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::cell::RefCell;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::cell::RefCell;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `new` in module `blance_tree`
[INFO] [stdout]  --> src/main.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut tree = blance_tree::new(0);
[INFO] [stdout]   |                                 ^^^ not found in `blance_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/tree/blance_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `resp` is never read
[INFO] [stdout]   --> src/bin/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut resp = "";
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `T` is never used
[INFO] [stdout]    --> src/tree/blance_tree.rs:156:19
[INFO] [stdout]     |
[INFO] [stdout] 156 | struct BlanceTree<T> {
[INFO] [stdout]     |                   ^ unused parameter
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0412, E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `server`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cmp`
[INFO] [stdout]    --> src/tree/blance_tree.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |             cmp::max(
[INFO] [stdout]     |             ^^^ use of undeclared crate or module `cmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RefCell` in this scope
[INFO] [stdout]   --> src/tree/blance_tree.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 | type TreeNode<T> = Rc<RefCell<Node<T>>>;
[INFO] [stdout]    |                       ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Weak` in this scope
[INFO] [stdout]   --> src/tree/blance_tree.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 | type ParentNode<T> = Weak<RefCell<Node<T>>>;
[INFO] [stdout]    |                      ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::rc::Weak;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::sync::Weak;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RefCell` in this scope
[INFO] [stdout]   --> src/tree/blance_tree.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 | type ParentNode<T> = Weak<RefCell<Node<T>>>;
[INFO] [stdout]    |                           ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `RefCell`
[INFO] [stdout]   --> src/tree/blance_tree.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Rc::new(RefCell::new(node))
[INFO] [stdout]    |                 ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Weak`
[INFO] [stdout]    --> src/tree/blance_tree.rs:110:34
[INFO] [stdout]     |
[INFO] [stdout] 110 |                     let parent = Weak::upgrade(&node).unwrap();
[INFO] [stdout]     |                                  ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::rc::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::sync::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RefCell` in this scope
[INFO] [stdout]    --> src/tree/blance_tree.rs:157:21
[INFO] [stdout]     |
[INFO] [stdout] 157 |     root: Option<Rc<RefCell<Node<T>>>>,
[INFO] [stdout]     |                     ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::cell::RefCell;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::cell::RefCell;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `RefCell` in this scope
[INFO] [stdout]    --> src/tree/blance_tree.rs:172:29
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn select_node(node: Rc<RefCell<Node<T>>>, key: i64) -> Option<TreeNode<T>> {
[INFO] [stdout]     |                             ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::cell::RefCell;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::cell::RefCell;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `new` in module `blance_tree`
[INFO] [stdout]  --> src/main.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut tree = blance_tree::new(0);
[INFO] [stdout]   |                                 ^^^ not found in `blance_tree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/tree/blance_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `resp` is never read
[INFO] [stdout]   --> src/bin/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut resp = "";
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `T` is never used
[INFO] [stdout]    --> src/tree/blance_tree.rs:156:19
[INFO] [stdout]     |
[INFO] [stdout] 156 | struct BlanceTree<T> {
[INFO] [stdout]     |                   ^ unused parameter
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0412, E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2e08c675a60888051fd8e8084ae7dc146052881bc05e6acc8cf02097d913ee41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e08c675a60888051fd8e8084ae7dc146052881bc05e6acc8cf02097d913ee41", kill_on_drop: false }`
[INFO] [stdout] 2e08c675a60888051fd8e8084ae7dc146052881bc05e6acc8cf02097d913ee41