[INFO] cloning repository https://github.com/misfityudi/bplustree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/misfityudi/bplustree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmisfityudi%2Fbplustree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmisfityudi%2Fbplustree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c243f4b41bf548f21fbb5e3d3c0d78263d6ca02
[INFO] checking misfityudi/bplustree/2c243f4b41bf548f21fbb5e3d3c0d78263d6ca02 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmisfityudi%2Fbplustree" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/misfityudi/bplustree
[INFO] finished tweaking git repo https://github.com/misfityudi/bplustree
[INFO] tweaked toml for git repo https://github.com/misfityudi/bplustree written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/misfityudi/bplustree on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/misfityudi/bplustree 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecf2ac39382cb139109317c472e4a52b676be440d9e5039ab67cf3fe20062ac4
[INFO] running `Command { std: "docker" "start" "-a" "ecf2ac39382cb139109317c472e4a52b676be440d9e5039ab67cf3fe20062ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecf2ac39382cb139109317c472e4a52b676be440d9e5039ab67cf3fe20062ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf2ac39382cb139109317c472e4a52b676be440d9e5039ab67cf3fe20062ac4", kill_on_drop: false }`
[INFO] [stdout] ecf2ac39382cb139109317c472e4a52b676be440d9e5039ab67cf3fe20062ac4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4708126511c91249337400bbc2c5576b5b03b7f3d800d9a2dd192d2ad71d0d9
[INFO] running `Command { std: "docker" "start" "-a" "e4708126511c91249337400bbc2c5576b5b03b7f3d800d9a2dd192d2ad71d0d9", kill_on_drop: false }`
[INFO] [stderr]     Checking bplustree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `Node`
[INFO] [stdout]   --> src/lib.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Some(Node) => println!("insert into either an internal node or a leaf node"),
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_Node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Node`
[INFO] [stdout]   --> src/lib.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Some(Node) => println!("bulk insert into either and internal node or a leaf node"),
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/lib.rs:102:35
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn merge_with_left(&mut self, left: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]    --> src/lib.rs:102:52
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn merge_with_left(&mut self, left: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/lib.rs:106:36
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn merge_with_right(&mut self, right: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]    --> src/lib.rs:106:54
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn merge_with_right(&mut self, right: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `merge_with_left`, `merge_with_right`, `borrow_from_sibiling`, and `traverse` are never used
[INFO] [stdout]    --> src/lib.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout]  20 | impl BPlusTree {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn merge_with_left(&mut self, left: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn merge_with_right(&mut self, right: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn borrow_from_sibiling() {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 111 |
[INFO] [stdout] 112 |     fn traverse() {}
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Node` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Some(Node) => println!("insert into either an internal node or a leaf node"),
[INFO] [stdout]    |                  ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Node` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Some(Node) => println!("bulk insert into either and internal node or a leaf node"),
[INFO] [stdout]    |                  ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Node`
[INFO] [stdout]   --> src/lib.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Some(Node) => println!("insert into either an internal node or a leaf node"),
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_Node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Node`
[INFO] [stdout]   --> src/lib.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Some(Node) => println!("bulk insert into either and internal node or a leaf node"),
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/lib.rs:102:35
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn merge_with_left(&mut self, left: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]    --> src/lib.rs:102:52
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn merge_with_left(&mut self, left: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/lib.rs:106:36
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn merge_with_right(&mut self, right: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]    --> src/lib.rs:106:54
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn merge_with_right(&mut self, right: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |                                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `merge_with_left`, `merge_with_right`, `borrow_from_sibiling`, and `traverse` are never used
[INFO] [stdout]    --> src/lib.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout]  20 | impl BPlusTree {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn merge_with_left(&mut self, left: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn merge_with_right(&mut self, right: &mut Node, parent: &mut InternalNode) -> Option<Node> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn borrow_from_sibiling() {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 111 |
[INFO] [stdout] 112 |     fn traverse() {}
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Node` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Some(Node) => println!("insert into either an internal node or a leaf node"),
[INFO] [stdout]    |                  ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Node` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Some(Node) => println!("bulk insert into either and internal node or a leaf node"),
[INFO] [stdout]    |                  ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "e4708126511c91249337400bbc2c5576b5b03b7f3d800d9a2dd192d2ad71d0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4708126511c91249337400bbc2c5576b5b03b7f3d800d9a2dd192d2ad71d0d9", kill_on_drop: false }`
[INFO] [stdout] e4708126511c91249337400bbc2c5576b5b03b7f3d800d9a2dd192d2ad71d0d9