Dec 05 06:28:00.313 INFO testing stallmanifold/ring-buffer against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 06:28:00.314 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 05 06:28:00.847 INFO [stdout] 9ab877d5a6aeae1b28502c7868a0135857cb1d0cf878849ac4f7c90a34eae0ee
Dec 05 06:28:00.849 INFO running `"docker" "start" "-a" "9ab877d5a6aeae1b28502c7868a0135857cb1d0cf878849ac4f7c90a34eae0ee"`
Dec 05 06:28:02.845 INFO [stderr] usermod: no changes
Dec 05 06:28:02.903 INFO [stderr]    Compiling ring-buffer v0.1.0 (/source)
Dec 05 06:28:03.164 INFO [stderr] warning: unused variable: `i`
Dec 05 06:28:03.164 INFO [stderr]   --> src/ring_buffer.rs:24:13
Dec 05 06:28:03.164 INFO [stderr]    |
Dec 05 06:28:03.164 INFO [stderr] 24 |         for i in 0..buffer.capacity() {
Dec 05 06:28:03.164 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 05 06:28:03.164 INFO [stderr]    |
Dec 05 06:28:03.164 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 06:28:03.164 INFO [stderr] 
Dec 05 06:28:03.164 INFO [stderr] warning: unused variable: `but`
Dec 05 06:28:03.164 INFO [stderr]    --> src/ring_buffer.rs:132:24
Dec 05 06:28:03.164 INFO [stderr]     |
Dec 05 06:28:03.164 INFO [stderr] 132 |     fn read(&mut self, but: &mut [u8]) -> io::Result<usize> {
Dec 05 06:28:03.164 INFO [stderr]     |                        ^^^ help: consider using `_but` instead
Dec 05 06:28:03.164 INFO [stderr] 
Dec 05 06:28:03.164 INFO [stderr] warning: unused variable: `buf`
Dec 05 06:28:03.164 INFO [stderr]    --> src/ring_buffer.rs:140:25
Dec 05 06:28:03.164 INFO [stderr]     |
Dec 05 06:28:03.164 INFO [stderr] 140 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Dec 05 06:28:03.164 INFO [stderr]     |                         ^^^ help: consider using `_buf` instead
Dec 05 06:28:03.164 INFO [stderr] 
Dec 05 06:28:03.176 INFO [stderr] warning: field is never used: `buffer`
Dec 05 06:28:03.176 INFO [stderr]   --> src/ring_buffer.rs:14:5
Dec 05 06:28:03.176 INFO [stderr]    |
Dec 05 06:28:03.176 INFO [stderr] 14 |     buffer: Box<Vec<u8>>,
Dec 05 06:28:03.176 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.176 INFO [stderr]    |
Dec 05 06:28:03.176 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 06:28:03.176 INFO [stderr] 
Dec 05 06:28:03.176 INFO [stderr] warning: field is never used: `capacity`
Dec 05 06:28:03.176 INFO [stderr]   --> src/ring_buffer.rs:15:5
Dec 05 06:28:03.176 INFO [stderr]    |
Dec 05 06:28:03.176 INFO [stderr] 15 |     capacity: usize,
Dec 05 06:28:03.176 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 05 06:28:03.176 INFO [stderr] 
Dec 05 06:28:03.176 INFO [stderr] warning: field is never used: `start`
Dec 05 06:28:03.176 INFO [stderr]   --> src/ring_buffer.rs:16:5
Dec 05 06:28:03.176 INFO [stderr]    |
Dec 05 06:28:03.176 INFO [stderr] 16 |     start:  usize,
Dec 05 06:28:03.176 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 05 06:28:03.176 INFO [stderr] 
Dec 05 06:28:03.176 INFO [stderr] warning: field is never used: `end`
Dec 05 06:28:03.176 INFO [stderr]   --> src/ring_buffer.rs:17:5
Dec 05 06:28:03.176 INFO [stderr]    |
Dec 05 06:28:03.176 INFO [stderr] 17 |     end:    usize,    
Dec 05 06:28:03.176 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 05 06:28:03.176 INFO [stderr] 
Dec 05 06:28:03.176 INFO [stderr] warning: method is never used: `new`
Dec 05 06:28:03.176 INFO [stderr]   --> src/ring_buffer.rs:21:5
Dec 05 06:28:03.176 INFO [stderr]    |
Dec 05 06:28:03.176 INFO [stderr] 21 |     fn new(capacity: usize) -> RingBuffer {
Dec 05 06:28:03.176 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.176 INFO [stderr] 
Dec 05 06:28:03.176 INFO [stderr] warning: method is never used: `read_buf_amount`
Dec 05 06:28:03.176 INFO [stderr]   --> src/ring_buffer.rs:36:5
Dec 05 06:28:03.176 INFO [stderr]    |
Dec 05 06:28:03.176 INFO [stderr] 36 |     fn read_buf_amount(&mut self, target: &mut [u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 05 06:28:03.176 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.176 INFO [stderr] 
Dec 05 06:28:03.176 INFO [stderr] warning: method is never used: `write_buf_amount`
Dec 05 06:28:03.176 INFO [stderr]   --> src/ring_buffer.rs:57:5
Dec 05 06:28:03.176 INFO [stderr]    |
Dec 05 06:28:03.176 INFO [stderr] 57 |     fn write_buf_amount(&mut self, data: &[u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 05 06:28:03.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.177 INFO [stderr] warning: method is never used: `is_empty`
Dec 05 06:28:03.177 INFO [stderr]   --> src/ring_buffer.rs:80:5
Dec 05 06:28:03.177 INFO [stderr]    |
Dec 05 06:28:03.177 INFO [stderr] 80 |     fn is_empty(&self) -> bool {
Dec 05 06:28:03.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.177 INFO [stderr] warning: method is never used: `is_full`
Dec 05 06:28:03.177 INFO [stderr]   --> src/ring_buffer.rs:85:5
Dec 05 06:28:03.177 INFO [stderr]    |
Dec 05 06:28:03.177 INFO [stderr] 85 |     fn is_full(&self) -> bool {
Dec 05 06:28:03.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.177 INFO [stderr] warning: method is never used: `available_data`
Dec 05 06:28:03.177 INFO [stderr]   --> src/ring_buffer.rs:90:5
Dec 05 06:28:03.177 INFO [stderr]    |
Dec 05 06:28:03.177 INFO [stderr] 90 |     fn available_data(&self) -> usize {
Dec 05 06:28:03.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.177 INFO [stderr] warning: method is never used: `available_space`
Dec 05 06:28:03.177 INFO [stderr]   --> src/ring_buffer.rs:95:5
Dec 05 06:28:03.177 INFO [stderr]    |
Dec 05 06:28:03.177 INFO [stderr] 95 |     fn available_space(&self) -> usize {
Dec 05 06:28:03.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.177 INFO [stderr] warning: method is never used: `gets`
Dec 05 06:28:03.177 INFO [stderr]   --> src/ring_buffer.rs:99:5
Dec 05 06:28:03.177 INFO [stderr]    |
Dec 05 06:28:03.177 INFO [stderr] 99 |     fn gets(&mut self, amount: usize) -> Result<Box<[u8]>, RingBufferError> {
Dec 05 06:28:03.177 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.177 INFO [stderr] warning: method is never used: `puts`
Dec 05 06:28:03.177 INFO [stderr]    --> src/ring_buffer.rs:116:5
Dec 05 06:28:03.177 INFO [stderr]     |
Dec 05 06:28:03.177 INFO [stderr] 116 |     fn puts(&mut self, data: &[u8]) -> Result<usize, RingBufferError> {
Dec 05 06:28:03.177 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.177 INFO [stderr] warning: method is never used: `commit_read`
Dec 05 06:28:03.177 INFO [stderr]    --> src/ring_buffer.rs:121:5
Dec 05 06:28:03.177 INFO [stderr]     |
Dec 05 06:28:03.177 INFO [stderr] 121 |     fn commit_read(&mut self, amount: usize) {
Dec 05 06:28:03.177 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.177 INFO [stderr] warning: method is never used: `commit_write`
Dec 05 06:28:03.177 INFO [stderr]    --> src/ring_buffer.rs:126:5
Dec 05 06:28:03.177 INFO [stderr]     |
Dec 05 06:28:03.177 INFO [stderr] 126 |     fn commit_write(&mut self, amount: usize) {
Dec 05 06:28:03.177 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.177 INFO [stderr] 
Dec 05 06:28:03.188 INFO [stderr] warning: comparison is useless due to type limits
Dec 05 06:28:03.188 INFO [stderr]    --> src/ring_buffer.rs:111:17
Dec 05 06:28:03.188 INFO [stderr]     |
Dec 05 06:28:03.188 INFO [stderr] 111 |         assert!(self.available_data() >= 0, "Error in read commit.");
Dec 05 06:28:03.188 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:03.196 INFO [stderr]     |
Dec 05 06:28:03.196 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Dec 05 06:28:03.196 INFO [stderr] 
Dec 05 06:28:03.392 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 05 06:28:03.394 INFO [stderr] su: No module specific data is present
Dec 05 06:28:04.436 INFO running `"docker" "inspect" "9ab877d5a6aeae1b28502c7868a0135857cb1d0cf878849ac4f7c90a34eae0ee"`
Dec 05 06:28:04.788 INFO running `"docker" "rm" "-f" "9ab877d5a6aeae1b28502c7868a0135857cb1d0cf878849ac4f7c90a34eae0ee"`
Dec 05 06:28:05.184 INFO [stdout] 9ab877d5a6aeae1b28502c7868a0135857cb1d0cf878849ac4f7c90a34eae0ee
Dec 05 06:28:05.186 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 05 06:28:05.594 INFO [stdout] bd5d103e98a72c1ae3e11f22045b7924f09c1571b1f2d28a192ecc39b3b6c08a
Dec 05 06:28:05.602 INFO running `"docker" "start" "-a" "bd5d103e98a72c1ae3e11f22045b7924f09c1571b1f2d28a192ecc39b3b6c08a"`
Dec 05 06:28:07.078 INFO [stderr] usermod: no changes
Dec 05 06:28:07.136 INFO [stderr]    Compiling ring-buffer v0.1.0 (/source)
Dec 05 06:28:07.355 INFO [stderr] warning: unused import: `ring_buffer::RingBuffer`
Dec 05 06:28:07.355 INFO [stderr]  --> src/tests.rs:1:5
Dec 05 06:28:07.355 INFO [stderr]   |
Dec 05 06:28:07.355 INFO [stderr] 1 | use ring_buffer::RingBuffer;
Dec 05 06:28:07.355 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.355 INFO [stderr]   |
Dec 05 06:28:07.355 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 06:28:07.355 INFO [stderr] 
Dec 05 06:28:07.355 INFO [stderr] warning: unused imports: `Read`, `Write`
Dec 05 06:28:07.355 INFO [stderr]  --> src/tests.rs:2:15
Dec 05 06:28:07.355 INFO [stderr]   |
Dec 05 06:28:07.355 INFO [stderr] 2 | use std::io::{Read, Write};
Dec 05 06:28:07.355 INFO [stderr]   |               ^^^^  ^^^^^
Dec 05 06:28:07.355 INFO [stderr] 
Dec 05 06:28:07.412 INFO [stderr] warning: unused variable: `i`
Dec 05 06:28:07.412 INFO [stderr]   --> src/ring_buffer.rs:24:13
Dec 05 06:28:07.412 INFO [stderr]    |
Dec 05 06:28:07.412 INFO [stderr] 24 |         for i in 0..buffer.capacity() {
Dec 05 06:28:07.412 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 05 06:28:07.412 INFO [stderr]    |
Dec 05 06:28:07.412 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 06:28:07.412 INFO [stderr] 
Dec 05 06:28:07.412 INFO [stderr] warning: unused variable: `but`
Dec 05 06:28:07.412 INFO [stderr]    --> src/ring_buffer.rs:132:24
Dec 05 06:28:07.412 INFO [stderr]     |
Dec 05 06:28:07.412 INFO [stderr] 132 |     fn read(&mut self, but: &mut [u8]) -> io::Result<usize> {
Dec 05 06:28:07.412 INFO [stderr]     |                        ^^^ help: consider using `_but` instead
Dec 05 06:28:07.412 INFO [stderr] 
Dec 05 06:28:07.412 INFO [stderr] warning: unused variable: `buf`
Dec 05 06:28:07.412 INFO [stderr]    --> src/ring_buffer.rs:140:25
Dec 05 06:28:07.412 INFO [stderr]     |
Dec 05 06:28:07.412 INFO [stderr] 140 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Dec 05 06:28:07.412 INFO [stderr]     |                         ^^^ help: consider using `_buf` instead
Dec 05 06:28:07.412 INFO [stderr] 
Dec 05 06:28:07.420 INFO [stderr] warning: field is never used: `buffer`
Dec 05 06:28:07.420 INFO [stderr]   --> src/ring_buffer.rs:14:5
Dec 05 06:28:07.420 INFO [stderr]    |
Dec 05 06:28:07.420 INFO [stderr] 14 |     buffer: Box<Vec<u8>>,
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: field is never used: `capacity`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:15:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 15 |     capacity: usize,
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: field is never used: `start`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:16:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 16 |     start:  usize,
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: field is never used: `end`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:17:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 17 |     end:    usize,    
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `new`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:21:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 21 |     fn new(capacity: usize) -> RingBuffer {
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `read_buf_amount`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:36:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 36 |     fn read_buf_amount(&mut self, target: &mut [u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `write_buf_amount`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:57:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 57 |     fn write_buf_amount(&mut self, data: &[u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `is_empty`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:80:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 80 |     fn is_empty(&self) -> bool {
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `is_full`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:85:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 85 |     fn is_full(&self) -> bool {
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `available_data`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:90:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 90 |     fn available_data(&self) -> usize {
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `available_space`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:95:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 95 |     fn available_space(&self) -> usize {
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `gets`
Dec 05 06:28:07.421 INFO [stderr]   --> src/ring_buffer.rs:99:5
Dec 05 06:28:07.421 INFO [stderr]    |
Dec 05 06:28:07.421 INFO [stderr] 99 |     fn gets(&mut self, amount: usize) -> Result<Box<[u8]>, RingBufferError> {
Dec 05 06:28:07.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `puts`
Dec 05 06:28:07.421 INFO [stderr]    --> src/ring_buffer.rs:116:5
Dec 05 06:28:07.421 INFO [stderr]     |
Dec 05 06:28:07.421 INFO [stderr] 116 |     fn puts(&mut self, data: &[u8]) -> Result<usize, RingBufferError> {
Dec 05 06:28:07.421 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `commit_read`
Dec 05 06:28:07.421 INFO [stderr]    --> src/ring_buffer.rs:121:5
Dec 05 06:28:07.421 INFO [stderr]     |
Dec 05 06:28:07.421 INFO [stderr] 121 |     fn commit_read(&mut self, amount: usize) {
Dec 05 06:28:07.421 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.421 INFO [stderr] 
Dec 05 06:28:07.421 INFO [stderr] warning: method is never used: `commit_write`
Dec 05 06:28:07.421 INFO [stderr]    --> src/ring_buffer.rs:126:5
Dec 05 06:28:07.421 INFO [stderr]     |
Dec 05 06:28:07.422 INFO [stderr] 126 |     fn commit_write(&mut self, amount: usize) {
Dec 05 06:28:07.422 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.422 INFO [stderr] 
Dec 05 06:28:07.432 INFO [stderr] warning: comparison is useless due to type limits
Dec 05 06:28:07.432 INFO [stderr]    --> src/ring_buffer.rs:111:17
Dec 05 06:28:07.432 INFO [stderr]     |
Dec 05 06:28:07.432 INFO [stderr] 111 |         assert!(self.available_data() >= 0, "Error in read commit.");
Dec 05 06:28:07.432 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 06:28:07.432 INFO [stderr]     |
Dec 05 06:28:07.432 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Dec 05 06:28:07.432 INFO [stderr] 
Dec 05 06:28:07.820 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Dec 05 06:28:07.821 INFO [stderr] su: No module specific data is present
Dec 05 06:28:08.650 INFO running `"docker" "inspect" "bd5d103e98a72c1ae3e11f22045b7924f09c1571b1f2d28a192ecc39b3b6c08a"`
Dec 05 06:28:08.938 INFO running `"docker" "rm" "-f" "bd5d103e98a72c1ae3e11f22045b7924f09c1571b1f2d28a192ecc39b3b6c08a"`
Dec 05 06:28:09.172 INFO [stdout] bd5d103e98a72c1ae3e11f22045b7924f09c1571b1f2d28a192ecc39b3b6c08a
Dec 05 06:28:09.174 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 05 06:28:09.565 INFO [stdout] f6bc0b8b777a7aed789a9f5fc84c85defdb67a77a14c3f9bbf20a152989995f0
Dec 05 06:28:09.574 INFO running `"docker" "start" "-a" "f6bc0b8b777a7aed789a9f5fc84c85defdb67a77a14c3f9bbf20a152989995f0"`
Dec 05 06:28:11.011 INFO [stderr] usermod: no changes
Dec 05 06:28:11.063 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 05 06:28:11.070 INFO [stderr]      Running /target/debug/deps/ring_buffer-99be50154e362c8d
Dec 05 06:28:11.076 INFO [stdout] 
Dec 05 06:28:11.076 INFO [stdout] running 0 tests
Dec 05 06:28:11.076 INFO [stdout] 
Dec 05 06:28:11.076 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 06:28:11.076 INFO [stdout] 
Dec 05 06:28:11.084 INFO [stderr]    Doc-tests ring-buffer
Dec 05 06:28:11.324 INFO [stdout] 
Dec 05 06:28:11.324 INFO [stdout] running 0 tests
Dec 05 06:28:11.324 INFO [stdout] 
Dec 05 06:28:11.324 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 06:28:11.324 INFO [stdout] 
Dec 05 06:28:11.328 INFO [stderr] su: No module specific data is present
Dec 05 06:28:12.050 INFO running `"docker" "inspect" "f6bc0b8b777a7aed789a9f5fc84c85defdb67a77a14c3f9bbf20a152989995f0"`
Dec 05 06:28:12.288 INFO running `"docker" "rm" "-f" "f6bc0b8b777a7aed789a9f5fc84c85defdb67a77a14c3f9bbf20a152989995f0"`
Dec 05 06:28:12.619 INFO [stdout] f6bc0b8b777a7aed789a9f5fc84c85defdb67a77a14c3f9bbf20a152989995f0