Dec 13 02:17:27.044 INFO testing stallmanifold/ring-buffer against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 02:17:27.044 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 02:17:27.707 INFO [stdout] 396924c032b1315d7ef50dc4fdab32c36a22ca5edd227de1aedaa6eb7f10a02a
Dec 13 02:17:27.715 INFO running `"docker" "start" "-a" "396924c032b1315d7ef50dc4fdab32c36a22ca5edd227de1aedaa6eb7f10a02a"`
Dec 13 02:17:29.209 INFO [stderr] usermod: no changes
Dec 13 02:17:29.255 INFO [stderr]    Compiling ring-buffer v0.1.0 (/source)
Dec 13 02:17:29.555 INFO [stderr] warning: unused variable: `i`
Dec 13 02:17:29.555 INFO [stderr]   --> src/ring_buffer.rs:24:13
Dec 13 02:17:29.555 INFO [stderr]    |
Dec 13 02:17:29.555 INFO [stderr] 24 |         for i in 0..buffer.capacity() {
Dec 13 02:17:29.555 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 13 02:17:29.555 INFO [stderr]    |
Dec 13 02:17:29.555 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 02:17:29.555 INFO [stderr] 
Dec 13 02:17:29.555 INFO [stderr] warning: unused variable: `but`
Dec 13 02:17:29.555 INFO [stderr]    --> src/ring_buffer.rs:132:24
Dec 13 02:17:29.555 INFO [stderr]     |
Dec 13 02:17:29.555 INFO [stderr] 132 |     fn read(&mut self, but: &mut [u8]) -> io::Result<usize> {
Dec 13 02:17:29.555 INFO [stderr]     |                        ^^^ help: consider using `_but` instead
Dec 13 02:17:29.555 INFO [stderr] 
Dec 13 02:17:29.555 INFO [stderr] warning: unused variable: `buf`
Dec 13 02:17:29.555 INFO [stderr]    --> src/ring_buffer.rs:140:25
Dec 13 02:17:29.555 INFO [stderr]     |
Dec 13 02:17:29.555 INFO [stderr] 140 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Dec 13 02:17:29.555 INFO [stderr]     |                         ^^^ help: consider using `_buf` instead
Dec 13 02:17:29.555 INFO [stderr] 
Dec 13 02:17:29.562 INFO [stderr] warning: field is never used: `buffer`
Dec 13 02:17:29.562 INFO [stderr]   --> src/ring_buffer.rs:14:5
Dec 13 02:17:29.562 INFO [stderr]    |
Dec 13 02:17:29.562 INFO [stderr] 14 |     buffer: Box<Vec<u8>>,
Dec 13 02:17:29.562 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.562 INFO [stderr]    |
Dec 13 02:17:29.562 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 02:17:29.562 INFO [stderr] 
Dec 13 02:17:29.562 INFO [stderr] warning: field is never used: `capacity`
Dec 13 02:17:29.562 INFO [stderr]   --> src/ring_buffer.rs:15:5
Dec 13 02:17:29.562 INFO [stderr]    |
Dec 13 02:17:29.562 INFO [stderr] 15 |     capacity: usize,
Dec 13 02:17:29.562 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 13 02:17:29.562 INFO [stderr] 
Dec 13 02:17:29.562 INFO [stderr] warning: field is never used: `start`
Dec 13 02:17:29.562 INFO [stderr]   --> src/ring_buffer.rs:16:5
Dec 13 02:17:29.562 INFO [stderr]    |
Dec 13 02:17:29.562 INFO [stderr] 16 |     start:  usize,
Dec 13 02:17:29.562 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 13 02:17:29.562 INFO [stderr] 
Dec 13 02:17:29.562 INFO [stderr] warning: field is never used: `end`
Dec 13 02:17:29.562 INFO [stderr]   --> src/ring_buffer.rs:17:5
Dec 13 02:17:29.562 INFO [stderr]    |
Dec 13 02:17:29.562 INFO [stderr] 17 |     end:    usize,    
Dec 13 02:17:29.562 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 13 02:17:29.562 INFO [stderr] 
Dec 13 02:17:29.562 INFO [stderr] warning: method is never used: `new`
Dec 13 02:17:29.562 INFO [stderr]   --> src/ring_buffer.rs:21:5
Dec 13 02:17:29.562 INFO [stderr]    |
Dec 13 02:17:29.562 INFO [stderr] 21 |     fn new(capacity: usize) -> RingBuffer {
Dec 13 02:17:29.562 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.562 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `read_buf_amount`
Dec 13 02:17:29.563 INFO [stderr]   --> src/ring_buffer.rs:36:5
Dec 13 02:17:29.563 INFO [stderr]    |
Dec 13 02:17:29.563 INFO [stderr] 36 |     fn read_buf_amount(&mut self, target: &mut [u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 13 02:17:29.563 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `write_buf_amount`
Dec 13 02:17:29.563 INFO [stderr]   --> src/ring_buffer.rs:57:5
Dec 13 02:17:29.563 INFO [stderr]    |
Dec 13 02:17:29.563 INFO [stderr] 57 |     fn write_buf_amount(&mut self, data: &[u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 13 02:17:29.563 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `is_empty`
Dec 13 02:17:29.563 INFO [stderr]   --> src/ring_buffer.rs:80:5
Dec 13 02:17:29.563 INFO [stderr]    |
Dec 13 02:17:29.563 INFO [stderr] 80 |     fn is_empty(&self) -> bool {
Dec 13 02:17:29.563 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `is_full`
Dec 13 02:17:29.563 INFO [stderr]   --> src/ring_buffer.rs:85:5
Dec 13 02:17:29.563 INFO [stderr]    |
Dec 13 02:17:29.563 INFO [stderr] 85 |     fn is_full(&self) -> bool {
Dec 13 02:17:29.563 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `available_data`
Dec 13 02:17:29.563 INFO [stderr]   --> src/ring_buffer.rs:90:5
Dec 13 02:17:29.563 INFO [stderr]    |
Dec 13 02:17:29.563 INFO [stderr] 90 |     fn available_data(&self) -> usize {
Dec 13 02:17:29.563 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `available_space`
Dec 13 02:17:29.563 INFO [stderr]   --> src/ring_buffer.rs:95:5
Dec 13 02:17:29.563 INFO [stderr]    |
Dec 13 02:17:29.563 INFO [stderr] 95 |     fn available_space(&self) -> usize {
Dec 13 02:17:29.563 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `gets`
Dec 13 02:17:29.563 INFO [stderr]   --> src/ring_buffer.rs:99:5
Dec 13 02:17:29.563 INFO [stderr]    |
Dec 13 02:17:29.563 INFO [stderr] 99 |     fn gets(&mut self, amount: usize) -> Result<Box<[u8]>, RingBufferError> {
Dec 13 02:17:29.563 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `puts`
Dec 13 02:17:29.563 INFO [stderr]    --> src/ring_buffer.rs:116:5
Dec 13 02:17:29.563 INFO [stderr]     |
Dec 13 02:17:29.563 INFO [stderr] 116 |     fn puts(&mut self, data: &[u8]) -> Result<usize, RingBufferError> {
Dec 13 02:17:29.563 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `commit_read`
Dec 13 02:17:29.563 INFO [stderr]    --> src/ring_buffer.rs:121:5
Dec 13 02:17:29.563 INFO [stderr]     |
Dec 13 02:17:29.563 INFO [stderr] 121 |     fn commit_read(&mut self, amount: usize) {
Dec 13 02:17:29.563 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.563 INFO [stderr] 
Dec 13 02:17:29.563 INFO [stderr] warning: method is never used: `commit_write`
Dec 13 02:17:29.563 INFO [stderr]    --> src/ring_buffer.rs:126:5
Dec 13 02:17:29.567 INFO [stderr]     |
Dec 13 02:17:29.567 INFO [stderr] 126 |     fn commit_write(&mut self, amount: usize) {
Dec 13 02:17:29.567 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.567 INFO [stderr] 
Dec 13 02:17:29.579 INFO [stderr] warning: comparison is useless due to type limits
Dec 13 02:17:29.579 INFO [stderr]    --> src/ring_buffer.rs:111:17
Dec 13 02:17:29.579 INFO [stderr]     |
Dec 13 02:17:29.579 INFO [stderr] 111 |         assert!(self.available_data() >= 0, "Error in read commit.");
Dec 13 02:17:29.579 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:29.579 INFO [stderr]     |
Dec 13 02:17:29.579 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Dec 13 02:17:29.579 INFO [stderr] 
Dec 13 02:17:29.771 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 13 02:17:29.771 INFO [stderr] su: No module specific data is present
Dec 13 02:17:30.437 INFO running `"docker" "inspect" "396924c032b1315d7ef50dc4fdab32c36a22ca5edd227de1aedaa6eb7f10a02a"`
Dec 13 02:17:30.841 INFO running `"docker" "rm" "-f" "396924c032b1315d7ef50dc4fdab32c36a22ca5edd227de1aedaa6eb7f10a02a"`
Dec 13 02:17:31.155 INFO [stdout] 396924c032b1315d7ef50dc4fdab32c36a22ca5edd227de1aedaa6eb7f10a02a
Dec 13 02:17:31.161 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 02:17:31.558 INFO [stdout] b045a78b58b88ddcd5be3e9bccb625da7bcbe49a3e5d239ee1a4caf87505595a
Dec 13 02:17:31.560 INFO running `"docker" "start" "-a" "b045a78b58b88ddcd5be3e9bccb625da7bcbe49a3e5d239ee1a4caf87505595a"`
Dec 13 02:17:32.959 INFO [stderr] usermod: no changes
Dec 13 02:17:33.007 INFO [stderr]    Compiling ring-buffer v0.1.0 (/source)
Dec 13 02:17:33.247 INFO [stderr] warning: unused import: `ring_buffer::RingBuffer`
Dec 13 02:17:33.247 INFO [stderr]  --> src/tests.rs:1:5
Dec 13 02:17:33.247 INFO [stderr]   |
Dec 13 02:17:33.247 INFO [stderr] 1 | use ring_buffer::RingBuffer;
Dec 13 02:17:33.247 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.247 INFO [stderr]   |
Dec 13 02:17:33.247 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 02:17:33.247 INFO [stderr] 
Dec 13 02:17:33.247 INFO [stderr] warning: unused imports: `Read`, `Write`
Dec 13 02:17:33.247 INFO [stderr]  --> src/tests.rs:2:15
Dec 13 02:17:33.247 INFO [stderr]   |
Dec 13 02:17:33.247 INFO [stderr] 2 | use std::io::{Read, Write};
Dec 13 02:17:33.247 INFO [stderr]   |               ^^^^  ^^^^^
Dec 13 02:17:33.247 INFO [stderr] 
Dec 13 02:17:33.287 INFO [stderr] warning: unused variable: `i`
Dec 13 02:17:33.287 INFO [stderr]   --> src/ring_buffer.rs:24:13
Dec 13 02:17:33.287 INFO [stderr]    |
Dec 13 02:17:33.287 INFO [stderr] 24 |         for i in 0..buffer.capacity() {
Dec 13 02:17:33.287 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 13 02:17:33.287 INFO [stderr]    |
Dec 13 02:17:33.287 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 02:17:33.287 INFO [stderr] 
Dec 13 02:17:33.297 INFO [stderr] warning: unused variable: `but`
Dec 13 02:17:33.297 INFO [stderr]    --> src/ring_buffer.rs:132:24
Dec 13 02:17:33.297 INFO [stderr]     |
Dec 13 02:17:33.297 INFO [stderr] 132 |     fn read(&mut self, but: &mut [u8]) -> io::Result<usize> {
Dec 13 02:17:33.297 INFO [stderr]     |                        ^^^ help: consider using `_but` instead
Dec 13 02:17:33.297 INFO [stderr] 
Dec 13 02:17:33.297 INFO [stderr] warning: unused variable: `buf`
Dec 13 02:17:33.297 INFO [stderr]    --> src/ring_buffer.rs:140:25
Dec 13 02:17:33.297 INFO [stderr]     |
Dec 13 02:17:33.297 INFO [stderr] 140 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
Dec 13 02:17:33.297 INFO [stderr]     |                         ^^^ help: consider using `_buf` instead
Dec 13 02:17:33.297 INFO [stderr] 
Dec 13 02:17:33.297 INFO [stderr] warning: field is never used: `buffer`
Dec 13 02:17:33.297 INFO [stderr]   --> src/ring_buffer.rs:14:5
Dec 13 02:17:33.297 INFO [stderr]    |
Dec 13 02:17:33.297 INFO [stderr] 14 |     buffer: Box<Vec<u8>>,
Dec 13 02:17:33.297 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.297 INFO [stderr]    |
Dec 13 02:17:33.297 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 02:17:33.297 INFO [stderr] 
Dec 13 02:17:33.297 INFO [stderr] warning: field is never used: `capacity`
Dec 13 02:17:33.297 INFO [stderr]   --> src/ring_buffer.rs:15:5
Dec 13 02:17:33.297 INFO [stderr]    |
Dec 13 02:17:33.297 INFO [stderr] 15 |     capacity: usize,
Dec 13 02:17:33.297 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 13 02:17:33.297 INFO [stderr] 
Dec 13 02:17:33.297 INFO [stderr] warning: field is never used: `start`
Dec 13 02:17:33.297 INFO [stderr]   --> src/ring_buffer.rs:16:5
Dec 13 02:17:33.297 INFO [stderr]    |
Dec 13 02:17:33.297 INFO [stderr] 16 |     start:  usize,
Dec 13 02:17:33.297 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 13 02:17:33.297 INFO [stderr] 
Dec 13 02:17:33.297 INFO [stderr] warning: field is never used: `end`
Dec 13 02:17:33.297 INFO [stderr]   --> src/ring_buffer.rs:17:5
Dec 13 02:17:33.297 INFO [stderr]    |
Dec 13 02:17:33.297 INFO [stderr] 17 |     end:    usize,    
Dec 13 02:17:33.297 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `new`
Dec 13 02:17:33.298 INFO [stderr]   --> src/ring_buffer.rs:21:5
Dec 13 02:17:33.298 INFO [stderr]    |
Dec 13 02:17:33.298 INFO [stderr] 21 |     fn new(capacity: usize) -> RingBuffer {
Dec 13 02:17:33.298 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `read_buf_amount`
Dec 13 02:17:33.298 INFO [stderr]   --> src/ring_buffer.rs:36:5
Dec 13 02:17:33.298 INFO [stderr]    |
Dec 13 02:17:33.298 INFO [stderr] 36 |     fn read_buf_amount(&mut self, target: &mut [u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 13 02:17:33.298 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `write_buf_amount`
Dec 13 02:17:33.298 INFO [stderr]   --> src/ring_buffer.rs:57:5
Dec 13 02:17:33.298 INFO [stderr]    |
Dec 13 02:17:33.298 INFO [stderr] 57 |     fn write_buf_amount(&mut self, data: &[u8], amount: usize) -> Result<usize, RingBufferError> {
Dec 13 02:17:33.298 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `is_empty`
Dec 13 02:17:33.298 INFO [stderr]   --> src/ring_buffer.rs:80:5
Dec 13 02:17:33.298 INFO [stderr]    |
Dec 13 02:17:33.298 INFO [stderr] 80 |     fn is_empty(&self) -> bool {
Dec 13 02:17:33.298 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `is_full`
Dec 13 02:17:33.298 INFO [stderr]   --> src/ring_buffer.rs:85:5
Dec 13 02:17:33.298 INFO [stderr]    |
Dec 13 02:17:33.298 INFO [stderr] 85 |     fn is_full(&self) -> bool {
Dec 13 02:17:33.298 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `available_data`
Dec 13 02:17:33.298 INFO [stderr]   --> src/ring_buffer.rs:90:5
Dec 13 02:17:33.298 INFO [stderr]    |
Dec 13 02:17:33.298 INFO [stderr] 90 |     fn available_data(&self) -> usize {
Dec 13 02:17:33.298 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `available_space`
Dec 13 02:17:33.298 INFO [stderr]   --> src/ring_buffer.rs:95:5
Dec 13 02:17:33.298 INFO [stderr]    |
Dec 13 02:17:33.298 INFO [stderr] 95 |     fn available_space(&self) -> usize {
Dec 13 02:17:33.298 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `gets`
Dec 13 02:17:33.298 INFO [stderr]   --> src/ring_buffer.rs:99:5
Dec 13 02:17:33.298 INFO [stderr]    |
Dec 13 02:17:33.298 INFO [stderr] 99 |     fn gets(&mut self, amount: usize) -> Result<Box<[u8]>, RingBufferError> {
Dec 13 02:17:33.298 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `puts`
Dec 13 02:17:33.298 INFO [stderr]    --> src/ring_buffer.rs:116:5
Dec 13 02:17:33.298 INFO [stderr]     |
Dec 13 02:17:33.298 INFO [stderr] 116 |     fn puts(&mut self, data: &[u8]) -> Result<usize, RingBufferError> {
Dec 13 02:17:33.298 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `commit_read`
Dec 13 02:17:33.298 INFO [stderr]    --> src/ring_buffer.rs:121:5
Dec 13 02:17:33.298 INFO [stderr]     |
Dec 13 02:17:33.298 INFO [stderr] 121 |     fn commit_read(&mut self, amount: usize) {
Dec 13 02:17:33.298 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.298 INFO [stderr] warning: method is never used: `commit_write`
Dec 13 02:17:33.298 INFO [stderr]    --> src/ring_buffer.rs:126:5
Dec 13 02:17:33.298 INFO [stderr]     |
Dec 13 02:17:33.298 INFO [stderr] 126 |     fn commit_write(&mut self, amount: usize) {
Dec 13 02:17:33.298 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.298 INFO [stderr] 
Dec 13 02:17:33.306 INFO [stderr] warning: comparison is useless due to type limits
Dec 13 02:17:33.306 INFO [stderr]    --> src/ring_buffer.rs:111:17
Dec 13 02:17:33.306 INFO [stderr]     |
Dec 13 02:17:33.306 INFO [stderr] 111 |         assert!(self.available_data() >= 0, "Error in read commit.");
Dec 13 02:17:33.306 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 02:17:33.306 INFO [stderr]     |
Dec 13 02:17:33.307 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Dec 13 02:17:33.307 INFO [stderr] 
Dec 13 02:17:33.663 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Dec 13 02:17:33.668 INFO [stderr] su: No module specific data is present
Dec 13 02:17:34.279 INFO running `"docker" "inspect" "b045a78b58b88ddcd5be3e9bccb625da7bcbe49a3e5d239ee1a4caf87505595a"`
Dec 13 02:17:34.511 INFO running `"docker" "rm" "-f" "b045a78b58b88ddcd5be3e9bccb625da7bcbe49a3e5d239ee1a4caf87505595a"`
Dec 13 02:17:34.886 INFO [stdout] b045a78b58b88ddcd5be3e9bccb625da7bcbe49a3e5d239ee1a4caf87505595a
Dec 13 02:17:34.892 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 02:17:35.476 INFO [stdout] fe6f718957415122b34ddb134daf3d6c93ab5882162bb365e63207a37fdd1661
Dec 13 02:17:35.480 INFO running `"docker" "start" "-a" "fe6f718957415122b34ddb134daf3d6c93ab5882162bb365e63207a37fdd1661"`
Dec 13 02:17:36.880 INFO [stderr] usermod: no changes
Dec 13 02:17:36.967 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 13 02:17:36.967 INFO [stderr]      Running /target/debug/deps/ring_buffer-1133029c7301a4d7
Dec 13 02:17:36.978 INFO [stdout] 
Dec 13 02:17:36.978 INFO [stdout] running 0 tests
Dec 13 02:17:36.978 INFO [stdout] 
Dec 13 02:17:36.978 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 02:17:36.978 INFO [stdout] 
Dec 13 02:17:36.983 INFO [stderr]    Doc-tests ring-buffer
Dec 13 02:17:37.324 INFO [stdout] 
Dec 13 02:17:37.324 INFO [stdout] running 0 tests
Dec 13 02:17:37.324 INFO [stdout] 
Dec 13 02:17:37.324 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 02:17:37.324 INFO [stdout] 
Dec 13 02:17:37.327 INFO [stderr] su: No module specific data is present
Dec 13 02:17:37.983 INFO running `"docker" "inspect" "fe6f718957415122b34ddb134daf3d6c93ab5882162bb365e63207a37fdd1661"`
Dec 13 02:17:38.295 INFO running `"docker" "rm" "-f" "fe6f718957415122b34ddb134daf3d6c93ab5882162bb365e63207a37fdd1661"`
Dec 13 02:17:38.611 INFO [stdout] fe6f718957415122b34ddb134daf3d6c93ab5882162bb365e63207a37fdd1661