[INFO] cloning repository https://github.com/LemonHX/concurrent_adaptive_radix_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LemonHX/concurrent_adaptive_radix_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLemonHX%2Fconcurrent_adaptive_radix_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLemonHX%2Fconcurrent_adaptive_radix_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a507b08baa9d577a6fb26dd37f0b94b6d536ed80
[INFO] checking LemonHX/concurrent_adaptive_radix_tree against try#78c81ee3917a99dcff6e2e6822800f0492c415c3 for pr-148967
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLemonHX%2Fconcurrent_adaptive_radix_tree" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/LemonHX/concurrent_adaptive_radix_tree
[INFO] finished tweaking git repo https://github.com/LemonHX/concurrent_adaptive_radix_tree
[INFO] tweaked toml for git repo https://github.com/LemonHX/concurrent_adaptive_radix_tree written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LemonHX/concurrent_adaptive_radix_tree on toolchain 78c81ee3917a99dcff6e2e6822800f0492c415c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LemonHX/concurrent_adaptive_radix_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" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dc59d4134e8038d6cde2abbc54193f1f120de4812dfb986ab239d64eb36c4af
[INFO] running `Command { std: "docker" "start" "-a" "9dc59d4134e8038d6cde2abbc54193f1f120de4812dfb986ab239d64eb36c4af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dc59d4134e8038d6cde2abbc54193f1f120de4812dfb986ab239d64eb36c4af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dc59d4134e8038d6cde2abbc54193f1f120de4812dfb986ab239d64eb36c4af", kill_on_drop: false }`
[INFO] [stdout] 9dc59d4134e8038d6cde2abbc54193f1f120de4812dfb986ab239d64eb36c4af
[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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f212894a7c2c3e21aeef0ad52ce22d6b4138edae76add1bceadd0f7b9a277d31
[INFO] running `Command { std: "docker" "start" "-a" "f212894a7c2c3e21aeef0ad52ce22d6b4138edae76add1bceadd0f7b9a277d31", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking concurrent_adaptive_radix_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `std::simd::SimdPartialEq`, `std::simd::ToBitMask`
[INFO] [stdout]  --> src/node/n16.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Index, simd::{SimdPartialEq, ToBitMask}};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^  ^^^^^^^^^ no `ToBitMask` in `simd`
[INFO] [stdout]   |                              |
[INFO] [stdout]   |                              no `SimdPartialEq` in `simd`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this trait instead:
[INFO] [stdout]           std::simd::prelude::SimdPartialEq
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::simd::SimdPartialOrd`
[INFO] [stdout]  --> src/node/n16.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::simd::SimdPartialOrd;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `SimdPartialOrd` in `simd`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait instead
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::simd::prelude::SimdPartialOrd;
[INFO] [stdout]   |                +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mem::ManuallyDrop`
[INFO] [stdout]  --> src/node/mod.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::atomic::AtomicUsize, mem::ManuallyDrop};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> src/node/n16.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Index, simd::{SimdPartialEq, ToBitMask}};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::simd::SimdPartialEq`, `std::simd::ToBitMask`
[INFO] [stdout]  --> src/node/n16.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Index, simd::{SimdPartialEq, ToBitMask}};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^  ^^^^^^^^^ no `ToBitMask` in `simd`
[INFO] [stdout]   |                              |
[INFO] [stdout]   |                              no `SimdPartialEq` in `simd`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing this trait instead:
[INFO] [stdout]           std::simd::prelude::SimdPartialEq
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::simd::SimdPartialOrd`
[INFO] [stdout]  --> src/node/n16.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::simd::SimdPartialOrd;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `SimdPartialOrd` in `simd`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait instead
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::simd::prelude::SimdPartialOrd;
[INFO] [stdout]   |                +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mem::ManuallyDrop`
[INFO] [stdout]  --> src/node/mod.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::atomic::AtomicUsize, mem::ManuallyDrop};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> src/node/n16.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Index, simd::{SimdPartialEq, ToBitMask}};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simd_eq` found for struct `Simd<T, N>` in the current scope
[INFO] [stdout]   --> src/node/n16.rs:31:28
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let mut mask = pos.simd_eq(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout]    |                            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/eq.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `Simd<u8, 16>` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SimdPartialEq` which provides `simd_eq` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::simd::cmp::SimdPartialEq;
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `simd_ge` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 31 -         let mut mask = pos.simd_eq(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout] 31 +         let mut mask = pos.simd_ge(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simd_lt` found for struct `Simd<T, N>` in the current scope
[INFO] [stdout]   --> src/node/n16.rs:46:28
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut mask = pos.simd_lt(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout]    |                            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/ord.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `Simd<u8, 16>` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SimdPartialOrd` which provides `simd_lt` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::simd::cmp::SimdPartialOrd;
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `simd_gt` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 46 -         let mut mask = pos.simd_lt(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout] 46 +         let mut mask = pos.simd_gt(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simd_eq` found for struct `Simd<T, N>` in the current scope
[INFO] [stdout]   --> src/node/n16.rs:31:28
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let mut mask = pos.simd_eq(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout]    |                            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/eq.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `Simd<u8, 16>` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SimdPartialEq` which provides `simd_eq` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::simd::cmp::SimdPartialEq;
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `simd_ge` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 31 -         let mut mask = pos.simd_eq(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout] 31 +         let mut mask = pos.simd_ge(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n16.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         self.children[pos] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                    |
[INFO] [stdout]    |         |                    any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n16.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         Some(todo!())
[INFO] [stdout]    |         ^^^^ ------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n16.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         Some(todo!())
[INFO] [stdout]    |         ^^^^ ------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simd_lt` found for struct `Simd<T, N>` in the current scope
[INFO] [stdout]   --> src/node/n16.rs:46:28
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut mask = pos.simd_lt(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout]    |                            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/78c81ee3917a99dcff6e2e6822800f0492c415c3/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/ord.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `Simd<u8, 16>` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SimdPartialOrd` which provides `simd_lt` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::simd::cmp::SimdPartialOrd;
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `simd_gt` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 46 -         let mut mask = pos.simd_lt(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout] 46 +         let mut mask = pos.simd_gt(std::simd::u8x16::from_slice(&self.keys));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/node/n16.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         self.children[pos] = todo!("alloc node");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]     |         |                    |
[INFO] [stdout]     |         |                    any code following this expression is unreachable
[INFO] [stdout]     |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]    --> src/node/n16.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         Some(todo!())
[INFO] [stdout]     |         ^^^^ ------- any code following this expression is unreachable
[INFO] [stdout]     |         |
[INFO] [stdout]     |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n16.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         self.children[pos] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                    |
[INFO] [stdout]    |         |                    any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n16.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         Some(todo!())
[INFO] [stdout]    |         ^^^^ ------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n16.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         Some(todo!())
[INFO] [stdout]    |         ^^^^ ------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n256.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         self.children[key.as_ref()[0] as usize] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                                         |
[INFO] [stdout]    |         |                                         any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/node/n16.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         self.children[pos] = todo!("alloc node");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]     |         |                    |
[INFO] [stdout]     |         |                    any code following this expression is unreachable
[INFO] [stdout]     |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n256.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]    --> src/node/n16.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         Some(todo!())
[INFO] [stdout]     |         ^^^^ ------- any code following this expression is unreachable
[INFO] [stdout]     |         |
[INFO] [stdout]     |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n256.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         self.children[key.as_ref()[0] as usize] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                                         |
[INFO] [stdout]    |         |                                         any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n256.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n256.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             Some(todo!("return value"))
[INFO] [stdout]    |             ^^^^ --------------------- any code following this expression is unreachable
[INFO] [stdout]    |             |
[INFO] [stdout]    |             unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n4.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         self.children[pos] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                    |
[INFO] [stdout]    |         |                    any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n4.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 return Some(todo!("{:?}", ret));
[INFO] [stdout]    |                        ^^^^ ------------------ any code following this expression is unreachable
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n4.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 self.children[i] = todo!("alloc node");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |                 |                  |
[INFO] [stdout]    |                 |                  any code following this expression is unreachable
[INFO] [stdout]    |                 unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n256.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         self.children[key.as_ref()[0] as usize] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                                         |
[INFO] [stdout]    |         |                                         any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n4.rs:84:24
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 return Some(todo!("{:?}", ret));
[INFO] [stdout]    |                        ^^^^ ------------------ any code following this expression is unreachable
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n256.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n4.rs:93:24
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 return Some(todo!("{:?}", self.children[i]));
[INFO] [stdout]    |                        ^^^^ ------------------------------- any code following this expression is unreachable
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n256.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         self.children[key.as_ref()[0] as usize] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                                         |
[INFO] [stdout]    |         |                                         any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n256.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n256.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             Some(todo!("return value"))
[INFO] [stdout]    |             ^^^^ --------------------- any code following this expression is unreachable
[INFO] [stdout]    |             |
[INFO] [stdout]    |             unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n4.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         self.children[pos] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                    |
[INFO] [stdout]    |         |                    any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n48.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         self.children[pos as usize] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                             |
[INFO] [stdout]    |         |                             any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n4.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 return Some(todo!("{:?}", ret));
[INFO] [stdout]    |                        ^^^^ ------------------ any code following this expression is unreachable
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n48.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n48.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n4.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 self.children[i] = todo!("alloc node");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |                 |                  |
[INFO] [stdout]    |                 |                  any code following this expression is unreachable
[INFO] [stdout]    |                 unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n4.rs:84:24
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 return Some(todo!("{:?}", ret));
[INFO] [stdout]    |                        ^^^^ ------------------ any code following this expression is unreachable
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n48.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         self.children[self.child_idx[key.as_ref()[0] as usize] as usize] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                                                                  |
[INFO] [stdout]    |         |                                                                  any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n48.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n48.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |             Some(todo!("return value"))
[INFO] [stdout]    |             ^^^^ --------------------- any code following this expression is unreachable
[INFO] [stdout]    |             |
[INFO] [stdout]    |             unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n4.rs:93:24
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 return Some(todo!("{:?}", self.children[i]));
[INFO] [stdout]    |                        ^^^^ ------------------------------- any code following this expression is unreachable
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n48.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         self.children[pos as usize] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                             |
[INFO] [stdout]    |         |                             any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n48.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n48.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n16.rs:62:34
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/node/n48.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         self.children[self.child_idx[key.as_ref()[0] as usize] as usize] = todo!("alloc node");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------------
[INFO] [stdout]    |         |                                                                  |
[INFO] [stdout]    |         |                                                                  any code following this expression is unreachable
[INFO] [stdout]    |         unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n48.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Some(todo!("return old value"))
[INFO] [stdout]    |         ^^^^ ------------------------- any code following this expression is unreachable
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/node/n48.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |             Some(todo!("return value"))
[INFO] [stdout]    |             ^^^^ --------------------- any code following this expression is unreachable
[INFO] [stdout]    |             |
[INFO] [stdout]    |             unreachable call
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/node/n16.rs:100:34
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn change(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]    --> src/node/n16.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let old = self.children[pos];
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]    --> src/node/n16.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let child = self.children[pos];
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/node/n256.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n256.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]   --> src/node/n256.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let old = self.children[key.as_ref()[0] as usize];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n256.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn change(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]   --> src/node/n256.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let old = self.children[key.as_ref()[0] as usize];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/node/n256.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let child = self.children[key.as_ref()[0] as usize];
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/node/n4.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut key = key.as_ref();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n4.rs:28:34
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n16.rs:62:34
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/node/n16.rs:100:34
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn change(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]     |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]    --> src/node/n16.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let old = self.children[pos];
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]    --> src/node/n16.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let child = self.children[pos];
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n4.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn change(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]   --> src/node/n4.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 let ret = self.children[i];
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/node/n256.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n256.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]   --> src/node/n256.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let old = self.children[key.as_ref()[0] as usize];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n256.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn change(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]   --> src/node/n256.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let old = self.children[key.as_ref()[0] as usize];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> src/node/n256.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let child = self.children[key.as_ref()[0] as usize];
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n48.rs:44:34
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]   --> src/node/n48.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let old = self.children[pos as usize];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n48.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn change(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]   --> src/node/n48.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let old = self.children[self.child_idx[key.as_ref()[0] as usize] as usize];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/node/n4.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut key = key.as_ref();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]   --> src/node/n48.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let ret = self.children[pos as usize];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n4.rs:28:34
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n4.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn change(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]   --> src/node/n4.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 let ret = self.children[i];
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n48.rs:44:34
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn insert(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]   --> src/node/n48.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let old = self.children[pos as usize];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/node/n48.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn change(&mut self, key: K, value: V) -> Option<V> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old`
[INFO] [stdout]   --> src/node/n48.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let old = self.children[self.child_idx[key.as_ref()[0] as usize] as usize];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_old`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]   --> src/node/n48.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let ret = self.children[pos as usize];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `concurrent_adaptive_radix_tree` (lib test) due to 4 previous errors; 42 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `concurrent_adaptive_radix_tree` (lib) due to 4 previous errors; 42 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f212894a7c2c3e21aeef0ad52ce22d6b4138edae76add1bceadd0f7b9a277d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f212894a7c2c3e21aeef0ad52ce22d6b4138edae76add1bceadd0f7b9a277d31", kill_on_drop: false }`
[INFO] [stdout] f212894a7c2c3e21aeef0ad52ce22d6b4138edae76add1bceadd0f7b9a277d31