[INFO] fetching crate fastbloom-rs 0.5.10...
[INFO] checking fastbloom-rs-0.5.10 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fastbloom-rs 0.5.10 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate fastbloom-rs 0.5.10
[INFO] finished tweaking crates.io crate fastbloom-rs 0.5.10
[INFO] tweaked toml for crates.io crate fastbloom-rs 0.5.10 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fastbloom-rs 0.5.10 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 crates.io crate fastbloom-rs 0.5.10 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] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8873af3ac216527c4f811161aabb634d237e46b168a9cd1141ffeb0176b7c030
[INFO] running `Command { std: "docker" "start" "-a" "8873af3ac216527c4f811161aabb634d237e46b168a9cd1141ffeb0176b7c030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8873af3ac216527c4f811161aabb634d237e46b168a9cd1141ffeb0176b7c030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8873af3ac216527c4f811161aabb634d237e46b168a9cd1141ffeb0176b7c030", kill_on_drop: false }`
[INFO] [stdout] 8873af3ac216527c4f811161aabb634d237e46b168a9cd1141ffeb0176b7c030
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7be7d64ad8933595ed4746a835b3b0c7db43e0449b1aa48be286af72769a0bcd
[INFO] running `Command { std: "docker" "start" "-a" "7be7d64ad8933595ed4746a835b3b0c7db43e0449b1aa48be286af72769a0bcd", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Checking xxhash-rust v0.8.15
[INFO] [stderr]     Checking fastmurmur3 v0.2.0
[INFO] [stderr]     Checking xorfilter-rs v0.5.1
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking cuckoofilter v0.5.0
[INFO] [stderr]     Checking fastbloom-rs v0.5.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bit_set`
[INFO] [stdout]   --> src/bloom.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn get_bit_indices(bit_set: &BloomBitVec, value: &[u8], m: u64, k: u64) -> Vec<u64> {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bit_set`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Membership`
[INFO] [stdout]  --> src/builder.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::Membership;
[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: `std::fs`
[INFO] [stdout]  --> src/bloom.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bloom.rs:761:13
[INFO] [stdout]     |
[INFO] [stdout] 761 |         let mut bloom2 = BloomFilter::from_u64_array(bloom.get_u64_array(), bloom.hashes());
[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: value assigned to `hashes` is never read
[INFO] [stdout]    --> src/bloom.rs:853:22
[INFO] [stdout]     |
[INFO] [stdout] 853 |     let mut hashes = 0;
[INFO] [stdout]     |                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `expected_elements`, `false_positive_probability`, and `size` are never used
[INFO] [stdout]    --> src/builder.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl FilterBuilder {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn expected_elements(&mut self, expected_elements: u64) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn false_positive_probability(&mut self, false_positive_probability: f64) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn size(&mut self, size: u64) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_bit_vec` is never used
[INFO] [stdout]    --> src/bloom.rs:433:19
[INFO] [stdout]     |
[INFO] [stdout] 137 | impl BloomFilter {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 433 |     pub(crate) fn set_bit_vec(&mut self, bit_vec: BloomBitVec) {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_counting_vec` and `compatible` are never used
[INFO] [stdout]    --> src/bloom.rs:495:19
[INFO] [stdout]     |
[INFO] [stdout] 485 | impl CountingBloomFilter {
[INFO] [stdout]     | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 495 |     pub(crate) fn set_counting_vec(&mut self, counting_vec: CountingVec) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 502 |     fn compatible(&self, other: &BloomFilter) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PartitionedBloomFilter` is never constructed
[INFO] [stdout]    --> src/bloom.rs:703:19
[INFO] [stdout]     |
[INFO] [stdout] 703 | pub(crate) struct PartitionedBloomFilter {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ScalableBloomFilter` is never constructed
[INFO] [stdout]    --> src/bloom.rs:715:19
[INFO] [stdout]     |
[INFO] [stdout] 715 | pub(crate) struct ScalableBloomFilter {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InvertibleBloomFilter` is never constructed
[INFO] [stdout]    --> src/bloom.rs:733:19
[INFO] [stdout]     |
[INFO] [stdout] 733 | pub(crate) struct InvertibleBloomFilter {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GarbledBloomFilter` is never constructed
[INFO] [stdout]    --> src/bloom.rs:739:19
[INFO] [stdout]     |
[INFO] [stdout] 739 | pub(crate) struct GarbledBloomFilter {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `nbits` is never read
[INFO] [stdout]   --> src/vec.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct BloomBitVec {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub(crate) nbits: u64,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BloomBitVec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_elem`, `xor`, `nor`, `xnor`, `nand`, and `difference` are never used
[INFO] [stdout]    --> src/vec.rs:30:12
[INFO] [stdout]     |
[INFO] [stdout]  22 | impl BloomBitVec {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  30 |     pub fn from_elem(slots: usize, bit: bool) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     pub fn xor(&mut self, other: &BloomBitVec) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     pub fn nor(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub fn xnor(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn nand(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn difference(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `counters` and `counter_per_slot` are never read
[INFO] [stdout]    --> src/vec.rs:145:16
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub(crate) struct CountingVec {
[INFO] [stdout]     |                   ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 145 |     pub(crate) counters: u64,
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 146 |     /// The number of valid counter in a slot which mean usize.
[INFO] [stdout] 147 |     pub(crate) counter_per_slot: usize,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CountingVec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/vec.rs:57:20
[INFO] [stdout]    |
[INFO] [stdout] 57 |             nbits: nbits.try_into().unwrap()
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fastbloom-rs` (lib test) due to 1 previous error; 13 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `bit_set`
[INFO] [stdout]   --> src/bloom.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn get_bit_indices(bit_set: &BloomBitVec, value: &[u8], m: u64, k: u64) -> Vec<u64> {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bit_set`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `expected_elements`, `false_positive_probability`, and `size` are never used
[INFO] [stdout]    --> src/builder.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl FilterBuilder {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn expected_elements(&mut self, expected_elements: u64) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn false_positive_probability(&mut self, false_positive_probability: f64) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn size(&mut self, size: u64) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_bit_vec` is never used
[INFO] [stdout]    --> src/bloom.rs:433:19
[INFO] [stdout]     |
[INFO] [stdout] 137 | impl BloomFilter {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 433 |     pub(crate) fn set_bit_vec(&mut self, bit_vec: BloomBitVec) {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_counting_vec` and `compatible` are never used
[INFO] [stdout]    --> src/bloom.rs:495:19
[INFO] [stdout]     |
[INFO] [stdout] 485 | impl CountingBloomFilter {
[INFO] [stdout]     | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 495 |     pub(crate) fn set_counting_vec(&mut self, counting_vec: CountingVec) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 502 |     fn compatible(&self, other: &BloomFilter) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PartitionedBloomFilter` is never constructed
[INFO] [stdout]    --> src/bloom.rs:703:19
[INFO] [stdout]     |
[INFO] [stdout] 703 | pub(crate) struct PartitionedBloomFilter {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ScalableBloomFilter` is never constructed
[INFO] [stdout]    --> src/bloom.rs:715:19
[INFO] [stdout]     |
[INFO] [stdout] 715 | pub(crate) struct ScalableBloomFilter {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InvertibleBloomFilter` is never constructed
[INFO] [stdout]    --> src/bloom.rs:733:19
[INFO] [stdout]     |
[INFO] [stdout] 733 | pub(crate) struct InvertibleBloomFilter {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GarbledBloomFilter` is never constructed
[INFO] [stdout]    --> src/bloom.rs:739:19
[INFO] [stdout]     |
[INFO] [stdout] 739 | pub(crate) struct GarbledBloomFilter {}
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `nbits` is never read
[INFO] [stdout]   --> src/vec.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct BloomBitVec {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub(crate) nbits: u64,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BloomBitVec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_elem`, `xor`, `nor`, `xnor`, `nand`, and `difference` are never used
[INFO] [stdout]    --> src/vec.rs:30:12
[INFO] [stdout]     |
[INFO] [stdout]  22 | impl BloomBitVec {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  30 |     pub fn from_elem(slots: usize, bit: bool) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     pub fn xor(&mut self, other: &BloomBitVec) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     pub fn nor(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub fn xnor(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn nand(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     pub fn difference(&mut self, other: &Self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `counters` and `counter_per_slot` are never read
[INFO] [stdout]    --> src/vec.rs:145:16
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub(crate) struct CountingVec {
[INFO] [stdout]     |                   ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 145 |     pub(crate) counters: u64,
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 146 |     /// The number of valid counter in a slot which mean usize.
[INFO] [stdout] 147 |     pub(crate) counter_per_slot: usize,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CountingVec` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]   --> src/vec.rs:57:20
[INFO] [stdout]    |
[INFO] [stdout] 57 |             nbits: nbits.try_into().unwrap()
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fastbloom-rs` (lib) due to 1 previous error; 13 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7be7d64ad8933595ed4746a835b3b0c7db43e0449b1aa48be286af72769a0bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be7d64ad8933595ed4746a835b3b0c7db43e0449b1aa48be286af72769a0bcd", kill_on_drop: false }`
[INFO] [stdout] 7be7d64ad8933595ed4746a835b3b0c7db43e0449b1aa48be286af72769a0bcd
