[INFO] updating cached repository https://github.com/1096189368/AVL-tree-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 28c0dbcf8eb7473e44c7062451a92f14a57166b6
[INFO] testing 1096189368/AVL-tree-rs against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1096189368%2FAVL-tree-rs" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/1096189368/AVL-tree-rs on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/1096189368/AVL-tree-rs
[INFO] finished tweaking git repo https://github.com/1096189368/AVL-tree-rs
[INFO] tweaked toml for git repo https://github.com/1096189368/AVL-tree-rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/1096189368/AVL-tree-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 219e01540ada8fa55692323ee532bae500b813b53ff70cd370bb328f03b56a8c
[INFO] running `"docker" "start" "-a" "219e01540ada8fa55692323ee532bae500b813b53ff70cd370bb328f03b56a8c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling simple_logger v1.6.0
[INFO] [stderr]    Compiling zbc_avl_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `simple_logger::*`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use simple_logger::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `swap`
[INFO] [stderr]  --> src/lib.rs:5:25
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::mem::{replace, swap};
[INFO] [stderr]   |                         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::fmt::Display`
[INFO] [stderr]  --> src/util.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test`
[INFO] [stderr]    --> src/lib.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |     let test = vec![
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lefth`
[INFO] [stderr]   --> src/lib.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |         let lefth = self.left.as_ref().map_or(0, |left| left.data);
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_lefth`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `righth`
[INFO] [stderr]    --> src/lib.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let righth = self.right.as_ref().map_or(0, |right| right.data);
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_righth`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tmp`
[INFO] [stderr]    --> src/lib.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |         let tmp = Node::new(88888, String::new(), None);
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_tmp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tmp`
[INFO] [stderr]    --> src/lib.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let tmp = Node::new(88888, String::new(), None);
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_tmp`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:131:13
[INFO] [stderr]     |
[INFO] [stderr] 131 |         let mut rightLeft = replace(&mut right.left, tmp2);
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:135:13
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let mut root = replace(self, *right);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:177:13
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let mut leftRight = replace(&mut left.right, tmp2);
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:181:13
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let mut root = replace(self, *left);
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `height`
[INFO] [stderr]   --> src/lib.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn height(&self) ->i32
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_child_parent`
[INFO] [stderr]    --> src/lib.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn update_child_parent(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `qianxu`
[INFO] [stderr]    --> src/lib.rs:274:4
[INFO] [stderr]     |
[INFO] [stderr] 274 | fn qianxu(link: &Link) {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `zhongxu`
[INFO] [stderr]    --> src/lib.rs:296:4
[INFO] [stderr]     |
[INFO] [stderr] 296 | fn zhongxu(link: &Link) {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `houxu`
[INFO] [stderr]    --> src/lib.rs:307:4
[INFO] [stderr]     |
[INFO] [stderr] 307 | fn houxu(link: &Link) {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `search`
[INFO] [stderr]    --> src/lib.rs:328:4
[INFO] [stderr]     |
[INFO] [stderr] 328 | fn search(link: &Link, data: i32) -> &str {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]    --> src/lib.rs:345:4
[INFO] [stderr]     |
[INFO] [stderr] 345 | fn main() {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `parentData` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let mut parentData = 0;
[INFO] [stderr]    |                 ^^^^^^^^^^ help: convert the identifier to snake case: `parent_data`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `selfPtr` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let selfPtr: Parent = Some(self);
[INFO] [stderr]     |             ^^^^^^^ help: convert the identifier to snake case: `self_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rightChild` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let rightChild = replace(&mut self.right, tmp1);
[INFO] [stderr]     |             ^^^^^^^^^^ help: convert the identifier to snake case: `right_child`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rightLeft` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 |         let mut rightLeft = replace(&mut right.left, tmp2);
[INFO] [stderr]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `right_left`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `leftPtr` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let leftPtr: Option<*mut Node> = self.left.as_mut().map_or(None, |left| Some(&mut **left));
[INFO] [stderr]     |             ^^^^^^^ help: convert the identifier to snake case: `left_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `leftChild` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let leftChild = replace(&mut self.left, tmp1);
[INFO] [stderr]     |             ^^^^^^^^^ help: convert the identifier to snake case: `left_child`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `leftRight` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:177:17
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let mut leftRight = replace(&mut left.right, tmp2);
[INFO] [stderr]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `left_right`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rightPtr` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:192:13
[INFO] [stderr]     |
[INFO] [stderr] 192 |         let rightPtr: Option<*mut Node> =
[INFO] [stderr]     |             ^^^^^^^^ help: convert the identifier to snake case: `right_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error[E0583]: file not found for module `demo`
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | mod demo;
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: to create the module `demo`, create file "src/demo.rs"
[INFO] [stderr] 
[INFO] [stderr] error[E0583]: file not found for module `tool`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | mod tool;
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: to create the module `tool`, create file "src/tool.rs"
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `simple_logger::*`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use simple_logger::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `swap`
[INFO] [stderr]  --> src/main.rs:5:25
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::mem::{replace, swap};
[INFO] [stderr]   |                         ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0583`.
[INFO] [stderr] error: could not compile `zbc_avl_tree`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "219e01540ada8fa55692323ee532bae500b813b53ff70cd370bb328f03b56a8c"`
[INFO] running `"docker" "rm" "-f" "219e01540ada8fa55692323ee532bae500b813b53ff70cd370bb328f03b56a8c"`
[INFO] [stdout] 219e01540ada8fa55692323ee532bae500b813b53ff70cd370bb328f03b56a8c