Dec 04 09:37:18.460 INFO checking stallmanifold/ring-buffer against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 09:37:18.460 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 09:37:18.987 INFO [stdout] 2fadaab57b1bd4a7d19655ae6c6e1ce02ec37e91c4b0bf0891b43e581e147bd9
Dec 04 09:37:18.995 INFO running `"docker" "start" "-a" "2fadaab57b1bd4a7d19655ae6c6e1ce02ec37e91c4b0bf0891b43e581e147bd9"`
Dec 04 09:37:21.235 INFO [stderr] usermod: no changes
Dec 04 09:37:21.291 INFO [stderr]     Checking ring-buffer v0.1.0 (/source)
Dec 04 09:37:21.683 INFO [stderr] warning: unused import: `ring_buffer::RingBuffer`
Dec 04 09:37:21.683 INFO [stderr]  --> src/tests.rs:1:5
Dec 04 09:37:21.683 INFO [stderr]   |
Dec 04 09:37:21.683 INFO [stderr] 1 | use ring_buffer::RingBuffer;
Dec 04 09:37:21.683 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.683 INFO [stderr]   |
Dec 04 09:37:21.683 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 09:37:21.683 INFO [stderr] 
Dec 04 09:37:21.683 INFO [stderr] warning: unused imports: `Read`, `Write`
Dec 04 09:37:21.683 INFO [stderr]  --> src/tests.rs:2:15
Dec 04 09:37:21.683 INFO [stderr]   |
Dec 04 09:37:21.683 INFO [stderr] 2 | use std::io::{Read, Write};
Dec 04 09:37:21.683 INFO [stderr]   |               ^^^^  ^^^^^
Dec 04 09:37:21.683 INFO [stderr] 
Dec 04 09:37:21.707 INFO [stderr] warning: unused variable: `i`
Dec 04 09:37:21.707 INFO [stderr]   --> src/ring_buffer.rs:24:13
Dec 04 09:37:21.707 INFO [stderr]    |
Dec 04 09:37:21.707 INFO [stderr] 24 |         for i in 0..buffer.capacity() {
Dec 04 09:37:21.707 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 04 09:37:21.707 INFO [stderr]    |
Dec 04 09:37:21.707 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 09:37:21.707 INFO [stderr] 
Dec 04 09:37:21.707 INFO [stderr] warning: unused variable: `but`
Dec 04 09:37:21.707 INFO [stderr]    --> src/ring_buffer.rs:132:24
Dec 04 09:37:21.707 INFO [stderr]     |
Dec 04 09:37:21.707 INFO [stderr] 132 |     fn read(&mut self, but: &mut [u8]) -> io::Result<usize> {
Dec 04 09:37:21.707 INFO [stderr]     |                        ^^^ help: consider using `_but` instead
Dec 04 09:37:21.707 INFO [stderr] 
Dec 04 09:37:21.707 INFO [stderr] warning: unused variable: `buf`
Dec 04 09:37:21.707 INFO [stderr]    --> src/ring_buffer.rs:140:25
Dec 04 09:37:21.707 INFO [stderr]     |
Dec 04 09:37:21.707 INFO [stderr] 140 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Dec 04 09:37:21.707 INFO [stderr]     |                         ^^^ help: consider using `_buf` instead
Dec 04 09:37:21.707 INFO [stderr] 
Dec 04 09:37:21.723 INFO [stderr] warning: field is never used: `buffer`
Dec 04 09:37:21.723 INFO [stderr]   --> src/ring_buffer.rs:14:5
Dec 04 09:37:21.723 INFO [stderr]    |
Dec 04 09:37:21.723 INFO [stderr] 14 |     buffer: Box<Vec<u8>>,
Dec 04 09:37:21.723 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.723 INFO [stderr]    |
Dec 04 09:37:21.723 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 09:37:21.723 INFO [stderr] 
Dec 04 09:37:21.723 INFO [stderr] warning: field is never used: `capacity`
Dec 04 09:37:21.723 INFO [stderr]   --> src/ring_buffer.rs:15:5
Dec 04 09:37:21.723 INFO [stderr]    |
Dec 04 09:37:21.723 INFO [stderr] 15 |     capacity: usize,
Dec 04 09:37:21.723 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 09:37:21.723 INFO [stderr] 
Dec 04 09:37:21.723 INFO [stderr] warning: field is never used: `start`
Dec 04 09:37:21.723 INFO [stderr]   --> src/ring_buffer.rs:16:5
Dec 04 09:37:21.723 INFO [stderr]    |
Dec 04 09:37:21.723 INFO [stderr] 16 |     start:  usize,
Dec 04 09:37:21.723 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 04 09:37:21.723 INFO [stderr] 
Dec 04 09:37:21.723 INFO [stderr] warning: field is never used: `end`
Dec 04 09:37:21.723 INFO [stderr]   --> src/ring_buffer.rs:17:5
Dec 04 09:37:21.723 INFO [stderr]    |
Dec 04 09:37:21.723 INFO [stderr] 17 |     end:    usize,    
Dec 04 09:37:21.723 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 04 09:37:21.723 INFO [stderr] 
Dec 04 09:37:21.723 INFO [stderr] warning: method is never used: `new`
Dec 04 09:37:21.723 INFO [stderr]   --> src/ring_buffer.rs:21:5
Dec 04 09:37:21.723 INFO [stderr]    |
Dec 04 09:37:21.723 INFO [stderr] 21 |     fn new(capacity: usize) -> RingBuffer {
Dec 04 09:37:21.723 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.723 INFO [stderr] 
Dec 04 09:37:21.723 INFO [stderr] warning: method is never used: `read_buf_amount`
Dec 04 09:37:21.723 INFO [stderr]   --> src/ring_buffer.rs:36:5
Dec 04 09:37:21.723 INFO [stderr]    |
Dec 04 09:37:21.723 INFO [stderr] 36 |     fn read_buf_amount(&mut self, target: &mut [u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 04 09:37:21.723 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.723 INFO [stderr] 
Dec 04 09:37:21.723 INFO [stderr] warning: method is never used: `write_buf_amount`
Dec 04 09:37:21.724 INFO [stderr]   --> src/ring_buffer.rs:57:5
Dec 04 09:37:21.724 INFO [stderr]    |
Dec 04 09:37:21.724 INFO [stderr] 57 |     fn write_buf_amount(&mut self, data: &[u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 04 09:37:21.724 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.724 INFO [stderr] warning: method is never used: `is_empty`
Dec 04 09:37:21.724 INFO [stderr]   --> src/ring_buffer.rs:80:5
Dec 04 09:37:21.724 INFO [stderr]    |
Dec 04 09:37:21.724 INFO [stderr] 80 |     fn is_empty(&self) -> bool {
Dec 04 09:37:21.724 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.724 INFO [stderr] warning: method is never used: `is_full`
Dec 04 09:37:21.724 INFO [stderr]   --> src/ring_buffer.rs:85:5
Dec 04 09:37:21.724 INFO [stderr]    |
Dec 04 09:37:21.724 INFO [stderr] 85 |     fn is_full(&self) -> bool {
Dec 04 09:37:21.724 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.724 INFO [stderr] warning: method is never used: `available_data`
Dec 04 09:37:21.724 INFO [stderr]   --> src/ring_buffer.rs:90:5
Dec 04 09:37:21.724 INFO [stderr]    |
Dec 04 09:37:21.724 INFO [stderr] 90 |     fn available_data(&self) -> usize {
Dec 04 09:37:21.724 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.724 INFO [stderr] warning: method is never used: `available_space`
Dec 04 09:37:21.724 INFO [stderr]   --> src/ring_buffer.rs:95:5
Dec 04 09:37:21.724 INFO [stderr]    |
Dec 04 09:37:21.724 INFO [stderr] 95 |     fn available_space(&self) -> usize {
Dec 04 09:37:21.724 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.724 INFO [stderr] warning: method is never used: `gets`
Dec 04 09:37:21.724 INFO [stderr]   --> src/ring_buffer.rs:99:5
Dec 04 09:37:21.724 INFO [stderr]    |
Dec 04 09:37:21.724 INFO [stderr] 99 |     fn gets(&mut self, amount: usize) -> Result<Box<[u8]>, RingBufferError> {
Dec 04 09:37:21.724 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.724 INFO [stderr] warning: method is never used: `puts`
Dec 04 09:37:21.724 INFO [stderr]    --> src/ring_buffer.rs:116:5
Dec 04 09:37:21.724 INFO [stderr]     |
Dec 04 09:37:21.724 INFO [stderr] 116 |     fn puts(&mut self, data: &[u8]) -> Result<usize, RingBufferError> {
Dec 04 09:37:21.724 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.724 INFO [stderr] warning: method is never used: `commit_read`
Dec 04 09:37:21.724 INFO [stderr]    --> src/ring_buffer.rs:121:5
Dec 04 09:37:21.724 INFO [stderr]     |
Dec 04 09:37:21.724 INFO [stderr] 121 |     fn commit_read(&mut self, amount: usize) {
Dec 04 09:37:21.724 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.724 INFO [stderr] warning: method is never used: `commit_write`
Dec 04 09:37:21.724 INFO [stderr]    --> src/ring_buffer.rs:126:5
Dec 04 09:37:21.724 INFO [stderr]     |
Dec 04 09:37:21.724 INFO [stderr] 126 |     fn commit_write(&mut self, amount: usize) {
Dec 04 09:37:21.724 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.724 INFO [stderr] 
Dec 04 09:37:21.739 INFO [stderr] warning: comparison is useless due to type limits
Dec 04 09:37:21.739 INFO [stderr]    --> src/ring_buffer.rs:111:17
Dec 04 09:37:21.739 INFO [stderr]     |
Dec 04 09:37:21.739 INFO [stderr] 111 |         assert!(self.available_data() >= 0, "Error in read commit.");
Dec 04 09:37:21.739 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.739 INFO [stderr]     |
Dec 04 09:37:21.739 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Dec 04 09:37:21.739 INFO [stderr] 
Dec 04 09:37:21.800 INFO [stderr] warning: unused variable: `i`
Dec 04 09:37:21.800 INFO [stderr]   --> src/ring_buffer.rs:24:13
Dec 04 09:37:21.800 INFO [stderr]    |
Dec 04 09:37:21.800 INFO [stderr] 24 |         for i in 0..buffer.capacity() {
Dec 04 09:37:21.800 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 04 09:37:21.801 INFO [stderr]    |
Dec 04 09:37:21.807 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 09:37:21.807 INFO [stderr] 
Dec 04 09:37:21.807 INFO [stderr] warning: unused variable: `but`
Dec 04 09:37:21.807 INFO [stderr]    --> src/ring_buffer.rs:132:24
Dec 04 09:37:21.807 INFO [stderr]     |
Dec 04 09:37:21.807 INFO [stderr] 132 |     fn read(&mut self, but: &mut [u8]) -> io::Result<usize> {
Dec 04 09:37:21.807 INFO [stderr]     |                        ^^^ help: consider using `_but` instead
Dec 04 09:37:21.807 INFO [stderr] 
Dec 04 09:37:21.807 INFO [stderr] warning: unused variable: `buf`
Dec 04 09:37:21.807 INFO [stderr]    --> src/ring_buffer.rs:140:25
Dec 04 09:37:21.807 INFO [stderr]     |
Dec 04 09:37:21.807 INFO [stderr] 140 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Dec 04 09:37:21.807 INFO [stderr]     |                         ^^^ help: consider using `_buf` instead
Dec 04 09:37:21.807 INFO [stderr] 
Dec 04 09:37:21.829 INFO [stderr] warning: field is never used: `buffer`
Dec 04 09:37:21.829 INFO [stderr]   --> src/ring_buffer.rs:14:5
Dec 04 09:37:21.829 INFO [stderr]    |
Dec 04 09:37:21.829 INFO [stderr] 14 |     buffer: Box<Vec<u8>>,
Dec 04 09:37:21.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.829 INFO [stderr]    |
Dec 04 09:37:21.830 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 09:37:21.830 INFO [stderr] 
Dec 04 09:37:21.830 INFO [stderr] warning: field is never used: `capacity`
Dec 04 09:37:21.830 INFO [stderr]   --> src/ring_buffer.rs:15:5
Dec 04 09:37:21.830 INFO [stderr]    |
Dec 04 09:37:21.830 INFO [stderr] 15 |     capacity: usize,
Dec 04 09:37:21.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 04 09:37:21.830 INFO [stderr] 
Dec 04 09:37:21.830 INFO [stderr] warning: field is never used: `start`
Dec 04 09:37:21.830 INFO [stderr]   --> src/ring_buffer.rs:16:5
Dec 04 09:37:21.830 INFO [stderr]    |
Dec 04 09:37:21.830 INFO [stderr] 16 |     start:  usize,
Dec 04 09:37:21.830 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 04 09:37:21.830 INFO [stderr] 
Dec 04 09:37:21.830 INFO [stderr] warning: field is never used: `end`
Dec 04 09:37:21.830 INFO [stderr]   --> src/ring_buffer.rs:17:5
Dec 04 09:37:21.830 INFO [stderr]    |
Dec 04 09:37:21.830 INFO [stderr] 17 |     end:    usize,    
Dec 04 09:37:21.830 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 04 09:37:21.830 INFO [stderr] 
Dec 04 09:37:21.830 INFO [stderr] warning: method is never used: `new`
Dec 04 09:37:21.830 INFO [stderr]   --> src/ring_buffer.rs:21:5
Dec 04 09:37:21.830 INFO [stderr]    |
Dec 04 09:37:21.830 INFO [stderr] 21 |     fn new(capacity: usize) -> RingBuffer {
Dec 04 09:37:21.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.830 INFO [stderr] 
Dec 04 09:37:21.830 INFO [stderr] warning: method is never used: `read_buf_amount`
Dec 04 09:37:21.830 INFO [stderr]   --> src/ring_buffer.rs:36:5
Dec 04 09:37:21.830 INFO [stderr]    |
Dec 04 09:37:21.830 INFO [stderr] 36 |     fn read_buf_amount(&mut self, target: &mut [u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 04 09:37:21.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.830 INFO [stderr] 
Dec 04 09:37:21.830 INFO [stderr] warning: method is never used: `write_buf_amount`
Dec 04 09:37:21.830 INFO [stderr]   --> src/ring_buffer.rs:57:5
Dec 04 09:37:21.830 INFO [stderr]    |
Dec 04 09:37:21.830 INFO [stderr] 57 |     fn write_buf_amount(&mut self, data: &[u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 04 09:37:21.830 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.830 INFO [stderr] 
Dec 04 09:37:21.831 INFO [stderr] warning: method is never used: `is_empty`
Dec 04 09:37:21.831 INFO [stderr]   --> src/ring_buffer.rs:80:5
Dec 04 09:37:21.831 INFO [stderr]    |
Dec 04 09:37:21.831 INFO [stderr] 80 |     fn is_empty(&self) -> bool {
Dec 04 09:37:21.831 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.831 INFO [stderr] 
Dec 04 09:37:21.831 INFO [stderr] warning: method is never used: `is_full`
Dec 04 09:37:21.831 INFO [stderr]   --> src/ring_buffer.rs:85:5
Dec 04 09:37:21.831 INFO [stderr]    |
Dec 04 09:37:21.831 INFO [stderr] 85 |     fn is_full(&self) -> bool {
Dec 04 09:37:21.831 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.831 INFO [stderr] 
Dec 04 09:37:21.831 INFO [stderr] warning: method is never used: `available_data`
Dec 04 09:37:21.831 INFO [stderr]   --> src/ring_buffer.rs:90:5
Dec 04 09:37:21.831 INFO [stderr]    |
Dec 04 09:37:21.831 INFO [stderr] 90 |     fn available_data(&self) -> usize {
Dec 04 09:37:21.831 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.831 INFO [stderr] 
Dec 04 09:37:21.831 INFO [stderr] warning: method is never used: `available_space`
Dec 04 09:37:21.831 INFO [stderr]   --> src/ring_buffer.rs:95:5
Dec 04 09:37:21.831 INFO [stderr]    |
Dec 04 09:37:21.831 INFO [stderr] 95 |     fn available_space(&self) -> usize {
Dec 04 09:37:21.831 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.831 INFO [stderr] 
Dec 04 09:37:21.831 INFO [stderr] warning: method is never used: `gets`
Dec 04 09:37:21.831 INFO [stderr]   --> src/ring_buffer.rs:99:5
Dec 04 09:37:21.831 INFO [stderr]    |
Dec 04 09:37:21.831 INFO [stderr] 99 |     fn gets(&mut self, amount: usize) -> Result<Box<[u8]>, RingBufferError> {
Dec 04 09:37:21.831 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.831 INFO [stderr] 
Dec 04 09:37:21.831 INFO [stderr] warning: method is never used: `puts`
Dec 04 09:37:21.831 INFO [stderr]    --> src/ring_buffer.rs:116:5
Dec 04 09:37:21.831 INFO [stderr]     |
Dec 04 09:37:21.831 INFO [stderr] 116 |     fn puts(&mut self, data: &[u8]) -> Result<usize, RingBufferError> {
Dec 04 09:37:21.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.831 INFO [stderr] 
Dec 04 09:37:21.831 INFO [stderr] warning: method is never used: `commit_read`
Dec 04 09:37:21.831 INFO [stderr]    --> src/ring_buffer.rs:121:5
Dec 04 09:37:21.831 INFO [stderr]     |
Dec 04 09:37:21.831 INFO [stderr] 121 |     fn commit_read(&mut self, amount: usize) {
Dec 04 09:37:21.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.831 INFO [stderr] 
Dec 04 09:37:21.831 INFO [stderr] warning: method is never used: `commit_write`
Dec 04 09:37:21.831 INFO [stderr]    --> src/ring_buffer.rs:126:5
Dec 04 09:37:21.831 INFO [stderr]     |
Dec 04 09:37:21.831 INFO [stderr] 126 |     fn commit_write(&mut self, amount: usize) {
Dec 04 09:37:21.831 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.831 INFO [stderr] 
Dec 04 09:37:21.855 INFO [stderr] warning: comparison is useless due to type limits
Dec 04 09:37:21.855 INFO [stderr]    --> src/ring_buffer.rs:111:17
Dec 04 09:37:21.855 INFO [stderr]     |
Dec 04 09:37:21.855 INFO [stderr] 111 |         assert!(self.available_data() >= 0, "Error in read commit.");
Dec 04 09:37:21.855 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 09:37:21.855 INFO [stderr]     |
Dec 04 09:37:21.855 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Dec 04 09:37:21.855 INFO [stderr] 
Dec 04 09:37:21.919 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 04 09:37:21.931 INFO [stderr] su: No module specific data is present
Dec 04 09:37:22.708 INFO running `"docker" "inspect" "2fadaab57b1bd4a7d19655ae6c6e1ce02ec37e91c4b0bf0891b43e581e147bd9"`
Dec 04 09:37:22.979 INFO running `"docker" "rm" "-f" "2fadaab57b1bd4a7d19655ae6c6e1ce02ec37e91c4b0bf0891b43e581e147bd9"`
Dec 04 09:37:23.291 INFO [stdout] 2fadaab57b1bd4a7d19655ae6c6e1ce02ec37e91c4b0bf0891b43e581e147bd9