[INFO] cloning repository https://github.com/tingerrr/srb-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tingerrr/srb-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftingerrr%2Fsrb-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftingerrr%2Fsrb-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da347eb1c93d5937f8bd0e9a1094c6902599d6d1
[INFO] checking tingerrr/srb-tree against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftingerrr%2Fsrb-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/tingerrr/srb-tree
[INFO] finished tweaking git repo https://github.com/tingerrr/srb-tree
[INFO] tweaked toml for git repo https://github.com/tingerrr/srb-tree written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tingerrr/srb-tree on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tingerrr/srb-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00f4cb1902667626d936dee9b7d3af5ad9cdae49b516dd1877d178e6596157da
[INFO] running `Command { std: "docker" "start" "-a" "00f4cb1902667626d936dee9b7d3af5ad9cdae49b516dd1877d178e6596157da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00f4cb1902667626d936dee9b7d3af5ad9cdae49b516dd1877d178e6596157da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f4cb1902667626d936dee9b7d3af5ad9cdae49b516dd1877d178e6596157da", kill_on_drop: false }`
[INFO] [stdout] 00f4cb1902667626d936dee9b7d3af5ad9cdae49b516dd1877d178e6596157da
[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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f87fc10e44c3d5491818546a3ab3185b744b15a5feabb938f86762b78878678f
[INFO] running `Command { std: "docker" "start" "-a" "f87fc10e44c3d5491818546a3ab3185b744b15a5feabb938f86762b78878678f", kill_on_drop: false }`
[INFO] [stderr]     Checking srb-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated constants `SIZE`, `MAX`, and `MIN` are never used
[INFO] [stdout]  --> src/key.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Key: Ord + Sized {
[INFO] [stdout]   |           --- associated constants in this trait
[INFO] [stdout] 2 |     const SIZE: u8;
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 3 |
[INFO] [stdout] 4 |     const MAX: Self;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 5 |     const MIN: Self;
[INFO] [stdout]   |           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SrbTreeMap` is never constructed
[INFO] [stdout]  --> src/tree/map.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct SrbTreeMap<K, V> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tree/map.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<K, V> SrbTreeMap<K, V> {
[INFO] [stdout]    | --------------------------- associated function in this implementation
[INFO] [stdout] 13 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/tree/map.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<K: Key, V> SrbTreeMap<K, V> {
[INFO] [stdout]    | -------------------------------- methods in this implementation
[INFO] [stdout] 21 |     pub fn insert(&mut self, key: K, value: V) -> Option<(K, V)> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn remove<Q: Borrow<K>>(&mut self, key: &Q) -> Option<(K, V)> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn get<Q: Borrow<K>>(&self, key: &Q) -> Option<(&K, &V)> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn get_mut<Q: Borrow<K>>(&mut self, key: &Q) -> Option<(&K, &mut V)> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn first(&self) -> Option<(&K, &V)> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn first_mut(&mut self) -> Option<(&K, &mut V)> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn last(&self) -> Option<(&K, &V)> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn last_mut(&mut self) -> Option<(&K, &mut V)> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_non_empty` is never used
[INFO] [stdout]   --> src/tree/node.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn get_non_empty<K, V, const B: usize, const FIRST_LAST: bool>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_non_empty_mut` is never used
[INFO] [stdout]   --> src/tree/node.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn get_non_empty_mut<K, V, const B: usize, const FIRST_LAST: bool>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `replace_child_at` is never used
[INFO] [stdout]   --> src/tree/node.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<K, V, const B: usize> Node<K, V, B> {
[INFO] [stdout]    | ---------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn replace_child_at(&mut self, idx: usize, child: Option<Self>) -> Option<Self> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `keys` and `values` are never used
[INFO] [stdout]    --> src/tree/node.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl<K, V, const B: usize> Node<K, V, B> {
[INFO] [stdout]     | ---------------------------------------- methods in this implementation
[INFO] [stdout] 159 |     pub fn keys(&self) -> Keys<'_, K, V, B> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pub fn values(&self) -> Values<'_, K, V, B> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/tree/node.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | impl<K: Key, V, const B: usize> Node<K, V, B> {
[INFO] [stdout]     | --------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn remove(&mut self, depth: usize, key: &K) -> Option<(K, V)> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |     pub fn get(&self, depth: usize, key: &K) -> Option<(&K, &V)> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 264 |     pub fn get_mut(&mut self, depth: usize, key: &K) -> Option<(&mut K, &mut V)> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 280 |     pub fn first(&self) -> Option<(&K, &V)> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 |     pub fn first_mut(&mut self) -> Option<(&mut K, &mut V)> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 306 |     pub fn last(&self) -> Option<(&K, &V)> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 319 |     pub fn last_mut(&mut self) -> Option<(&mut K, &mut V)> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Keys` is never constructed
[INFO] [stdout]    --> src/tree/node/iter.rs:299:12
[INFO] [stdout]     |
[INFO] [stdout] 299 | pub struct Keys<'n, K, V, const B: usize> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Values` is never constructed
[INFO] [stdout]    --> src/tree/node/iter.rs:318:12
[INFO] [stdout]     |
[INFO] [stdout] 318 | pub struct Values<'n, K, V, const B: usize> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `remove`, `get`, `first`, `last`, and `iter` are never used
[INFO] [stdout]   --> src/tree/set.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<T: Key> SrbTreeSet<T> {
[INFO] [stdout]    | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn remove<Q: Borrow<T>>(&mut self, value: &Q) -> Option<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn get<Q: Borrow<T>>(&self, value: &Q) -> Option<&T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn first(&self) -> Option<&T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn last(&self) -> Option<&T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn iter(&self) -> node::iter::Keys<'_, T, (), B> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/key.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 (*self).try_into().unwrap()
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 | impl_key!(u8);
[INFO] [stdout]    | ------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_key` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/key.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 (*self).try_into().unwrap()
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 | impl_key!(u16);
[INFO] [stdout]    | -------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_key` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/key.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 (*self).try_into().unwrap()
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 | impl_key!(usize);
[INFO] [stdout]    | ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_key` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/key.rs:38:32
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 Self::MAX.ilog(branching_factor.try_into().unwrap()) as usize
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 | impl_key!(usize);
[INFO] [stdout]    | ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_key` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `srb-tree` (bin "srb-tree") due to 4 previous errors; 12 warnings emitted
[INFO] [stdout] warning: associated constants `SIZE`, `MAX`, and `MIN` are never used
[INFO] [stdout]  --> src/key.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Key: Ord + Sized {
[INFO] [stdout]   |           --- associated constants in this trait
[INFO] [stdout] 2 |     const SIZE: u8;
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 3 |
[INFO] [stdout] 4 |     const MAX: Self;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 5 |     const MIN: Self;
[INFO] [stdout]   |           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `SrbTreeMap` is never constructed
[INFO] [stdout]  --> src/tree/map.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct SrbTreeMap<K, V> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `srb-tree` (bin "srb-tree" test) due to 4 previous errors; 11 warnings emitted
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tree/map.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<K, V> SrbTreeMap<K, V> {
[INFO] [stdout]    | --------------------------- associated function in this implementation
[INFO] [stdout] 13 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/tree/map.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<K: Key, V> SrbTreeMap<K, V> {
[INFO] [stdout]    | -------------------------------- methods in this implementation
[INFO] [stdout] 21 |     pub fn insert(&mut self, key: K, value: V) -> Option<(K, V)> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn remove<Q: Borrow<K>>(&mut self, key: &Q) -> Option<(K, V)> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn get<Q: Borrow<K>>(&self, key: &Q) -> Option<(&K, &V)> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn get_mut<Q: Borrow<K>>(&mut self, key: &Q) -> Option<(&K, &mut V)> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn first(&self) -> Option<(&K, &V)> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn first_mut(&mut self) -> Option<(&K, &mut V)> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn last(&self) -> Option<(&K, &V)> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn last_mut(&mut self) -> Option<(&K, &mut V)> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_non_empty` is never used
[INFO] [stdout]   --> src/tree/node.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn get_non_empty<K, V, const B: usize, const FIRST_LAST: bool>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_non_empty_mut` is never used
[INFO] [stdout]   --> src/tree/node.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn get_non_empty_mut<K, V, const B: usize, const FIRST_LAST: bool>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `replace_child_at` is never used
[INFO] [stdout]   --> src/tree/node.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<K, V, const B: usize> Node<K, V, B> {
[INFO] [stdout]    | ---------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn replace_child_at(&mut self, idx: usize, child: Option<Self>) -> Option<Self> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `values` is never used
[INFO] [stdout]    --> src/tree/node.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl<K, V, const B: usize> Node<K, V, B> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pub fn values(&self) -> Values<'_, K, V, B> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/tree/node.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | impl<K: Key, V, const B: usize> Node<K, V, B> {
[INFO] [stdout]     | --------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn remove(&mut self, depth: usize, key: &K) -> Option<(K, V)> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |     pub fn get(&self, depth: usize, key: &K) -> Option<(&K, &V)> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 264 |     pub fn get_mut(&mut self, depth: usize, key: &K) -> Option<(&mut K, &mut V)> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 280 |     pub fn first(&self) -> Option<(&K, &V)> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 |     pub fn first_mut(&mut self) -> Option<(&mut K, &mut V)> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 306 |     pub fn last(&self) -> Option<(&K, &V)> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 319 |     pub fn last_mut(&mut self) -> Option<(&mut K, &mut V)> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Values` is never constructed
[INFO] [stdout]    --> src/tree/node/iter.rs:318:12
[INFO] [stdout]     |
[INFO] [stdout] 318 | pub struct Values<'n, K, V, const B: usize> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `remove`, `get`, `first`, `last`, and `iter` are never used
[INFO] [stdout]   --> src/tree/set.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<T: Key> SrbTreeSet<T> {
[INFO] [stdout]    | -------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn remove<Q: Borrow<T>>(&mut self, value: &Q) -> Option<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn get<Q: Borrow<T>>(&self, value: &Q) -> Option<&T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn first(&self) -> Option<&T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn last(&self) -> Option<&T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn iter(&self) -> node::iter::Keys<'_, T, (), B> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/key.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 (*self).try_into().unwrap()
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 | impl_key!(u8);
[INFO] [stdout]    | ------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_key` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/key.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 (*self).try_into().unwrap()
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 | impl_key!(u16);
[INFO] [stdout]    | -------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_key` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/key.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 (*self).try_into().unwrap()
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 | impl_key!(usize);
[INFO] [stdout]    | ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_key` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/key.rs:38:32
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 Self::MAX.ilog(branching_factor.try_into().unwrap()) as usize
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 | impl_key!(usize);
[INFO] [stdout]    | ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_key` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f87fc10e44c3d5491818546a3ab3185b744b15a5feabb938f86762b78878678f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f87fc10e44c3d5491818546a3ab3185b744b15a5feabb938f86762b78878678f", kill_on_drop: false }`
[INFO] [stdout] f87fc10e44c3d5491818546a3ab3185b744b15a5feabb938f86762b78878678f
