Dec 19 10:09:00.377 INFO checking rikshot/testbed against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:09:00.378 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/rikshot/testbed:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:09:00.800 INFO [stdout] 3233e80571cc1164633e46792fafa195162631f32a2b378155149031f3d4dfa3
Dec 19 10:09:00.806 INFO running `"docker" "start" "-a" "3233e80571cc1164633e46792fafa195162631f32a2b378155149031f3d4dfa3"`
Dec 19 10:09:01.829 INFO [stderr]     Checking mandelbrot v0.1.0 (/opt/crater/workdir)
Dec 19 10:09:02.051 INFO [stderr] warning: unused import: `CString`
Dec 19 10:09:02.051 INFO [stderr]   --> src/rs/mandelbrot.rs:11:16
Dec 19 10:09:02.051 INFO [stderr]    |
Dec 19 10:09:02.051 INFO [stderr] 11 | use std::ffi::{CString, CStr};
Dec 19 10:09:02.051 INFO [stderr]    |                ^^^^^^^
Dec 19 10:09:02.051 INFO [stderr]    |
Dec 19 10:09:02.051 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 10:09:02.051 INFO [stderr] 
Dec 19 10:09:02.364 INFO [stderr] warning: unused variable: `config`
Dec 19 10:09:02.364 INFO [stderr]    --> src/rs/mandelbrot.rs:135:9
Dec 19 10:09:02.364 INFO [stderr]     |
Dec 19 10:09:02.364 INFO [stderr] 135 |     let config: Config = serde_json::from_str(config_json.to_str().unwrap()).unwrap();
Dec 19 10:09:02.364 INFO [stderr]     |         ^^^^^^ help: consider using `_config` instead
Dec 19 10:09:02.364 INFO [stderr]     |
Dec 19 10:09:02.364 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 10:09:02.364 INFO [stderr] 
Dec 19 10:09:02.364 INFO [stderr] warning: unused variable: `raw_chunk_config`
Dec 19 10:09:02.364 INFO [stderr]    --> src/rs/mandelbrot.rs:133:66
Dec 19 10:09:02.364 INFO [stderr]     |
Dec 19 10:09:02.364 INFO [stderr] 133 | pub unsafe extern "C" fn iterateChunk(raw_config: *const c_char, raw_chunk_config: *const c_char) -> u32 {
Dec 19 10:09:02.364 INFO [stderr]     |                                                                  ^^^^^^^^^^^^^^^^ help: consider using `_raw_chunk_config` instead
Dec 19 10:09:02.364 INFO [stderr] 
Dec 19 10:09:02.364 INFO [stderr] warning: unused variable: `config`
Dec 19 10:09:02.364 INFO [stderr]    --> src/rs/mandelbrot.rs:209:9
Dec 19 10:09:02.364 INFO [stderr]     |
Dec 19 10:09:02.364 INFO [stderr] 209 |     let config: Config = serde_json::from_str(config_json.to_str().unwrap()).unwrap();
Dec 19 10:09:02.364 INFO [stderr]     |         ^^^^^^ help: consider using `_config` instead
Dec 19 10:09:02.364 INFO [stderr] 
Dec 19 10:09:02.364 INFO [stderr] warning: unused variable: `chunk_config`
Dec 19 10:09:02.364 INFO [stderr]    --> src/rs/mandelbrot.rs:212:9
Dec 19 10:09:02.364 INFO [stderr]     |
Dec 19 10:09:02.364 INFO [stderr] 212 |     let chunk_config: ChunkConfig = serde_json::from_str(chunk_config_json.to_str().unwrap()).unwrap();
Dec 19 10:09:02.364 INFO [stderr]     |         ^^^^^^^^^^^^ help: consider using `_chunk_config` instead
Dec 19 10:09:02.364 INFO [stderr] 
Dec 19 10:09:02.364 INFO [stderr] warning: unused variable: `buffers`
Dec 19 10:09:02.364 INFO [stderr]    --> src/rs/mandelbrot.rs:207:97
Dec 19 10:09:02.364 INFO [stderr]     |
Dec 19 10:09:02.364 INFO [stderr] 207 | pub unsafe extern "C" fn colorChunk(raw_config: *const c_char, raw_chunk_config: *const c_char, buffers: Buffers, total: u32) {
Dec 19 10:09:02.364 INFO [stderr]     |                                                                                                 ^^^^^^^ help: consider using `_buffers` instead
Dec 19 10:09:02.364 INFO [stderr] 
Dec 19 10:09:02.364 INFO [stderr] warning: unused variable: `total`
Dec 19 10:09:02.364 INFO [stderr]    --> src/rs/mandelbrot.rs:207:115
Dec 19 10:09:02.364 INFO [stderr]     |
Dec 19 10:09:02.364 INFO [stderr] 207 | pub unsafe extern "C" fn colorChunk(raw_config: *const c_char, raw_chunk_config: *const c_char, buffers: Buffers, total: u32) {
Dec 19 10:09:02.364 INFO [stderr]     |                                                                                                                   ^^^^^ help: consider using `_total` instead
Dec 19 10:09:02.364 INFO [stderr] 
Dec 19 10:09:02.368 INFO [stderr] warning: unused variable: `config`
Dec 19 10:09:02.369 INFO [stderr]    --> src/rs/mandelbrot.rs:135:9
Dec 19 10:09:02.369 INFO [stderr]     |
Dec 19 10:09:02.369 INFO [stderr] 135 |     let config: Config = serde_json::from_str(config_json.to_str().unwrap()).unwrap();
Dec 19 10:09:02.369 INFO [stderr]     |         ^^^^^^ help: consider using `_config` instead
Dec 19 10:09:02.369 INFO [stderr]     |
Dec 19 10:09:02.369 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 10:09:02.369 INFO [stderr] 
Dec 19 10:09:02.369 INFO [stderr] warning: unused variable: `raw_chunk_config`
Dec 19 10:09:02.369 INFO [stderr]    --> src/rs/mandelbrot.rs:133:66
Dec 19 10:09:02.369 INFO [stderr]     |
Dec 19 10:09:02.369 INFO [stderr] 133 | pub unsafe extern "C" fn iterateChunk(raw_config: *const c_char, raw_chunk_config: *const c_char) -> u32 {
Dec 19 10:09:02.369 INFO [stderr]     |                                                                  ^^^^^^^^^^^^^^^^ help: consider using `_raw_chunk_config` instead
Dec 19 10:09:02.369 INFO [stderr] 
Dec 19 10:09:02.369 INFO [stderr] warning: unused variable: `config`
Dec 19 10:09:02.369 INFO [stderr]    --> src/rs/mandelbrot.rs:209:9
Dec 19 10:09:02.369 INFO [stderr]     |
Dec 19 10:09:02.369 INFO [stderr] 209 |     let config: Config = serde_json::from_str(config_json.to_str().unwrap()).unwrap();
Dec 19 10:09:02.369 INFO [stderr]     |         ^^^^^^ help: consider using `_config` instead
Dec 19 10:09:02.369 INFO [stderr] 
Dec 19 10:09:02.369 INFO [stderr] warning: unused variable: `chunk_config`
Dec 19 10:09:02.369 INFO [stderr]    --> src/rs/mandelbrot.rs:212:9
Dec 19 10:09:02.369 INFO [stderr]     |
Dec 19 10:09:02.369 INFO [stderr] 212 |     let chunk_config: ChunkConfig = serde_json::from_str(chunk_config_json.to_str().unwrap()).unwrap();
Dec 19 10:09:02.369 INFO [stderr]     |         ^^^^^^^^^^^^ help: consider using `_chunk_config` instead
Dec 19 10:09:02.369 INFO [stderr] 
Dec 19 10:09:02.369 INFO [stderr] warning: unused variable: `buffers`
Dec 19 10:09:02.369 INFO [stderr]    --> src/rs/mandelbrot.rs:207:97
Dec 19 10:09:02.369 INFO [stderr]     |
Dec 19 10:09:02.369 INFO [stderr] 207 | pub unsafe extern "C" fn colorChunk(raw_config: *const c_char, raw_chunk_config: *const c_char, buffers: Buffers, total: u32) {
Dec 19 10:09:02.369 INFO [stderr]     |                                                                                                 ^^^^^^^ help: consider using `_buffers` instead
Dec 19 10:09:02.369 INFO [stderr] 
Dec 19 10:09:02.369 INFO [stderr] warning: unused variable: `total`
Dec 19 10:09:02.369 INFO [stderr]    --> src/rs/mandelbrot.rs:207:115
Dec 19 10:09:02.369 INFO [stderr]     |
Dec 19 10:09:02.369 INFO [stderr] 207 | pub unsafe extern "C" fn colorChunk(raw_config: *const c_char, raw_chunk_config: *const c_char, buffers: Buffers, total: u32) {
Dec 19 10:09:02.369 INFO [stderr]     |                                                                                                                   ^^^^^ help: consider using `_total` instead
Dec 19 10:09:02.369 INFO [stderr] 
Dec 19 10:09:02.504 INFO [stderr] warning: method is never used: `new`
Dec 19 10:09:02.504 INFO [stderr]   --> src/rs/mandelbrot.rs:82:5
Dec 19 10:09:02.506 INFO [stderr]    |
Dec 19 10:09:02.506 INFO [stderr] 82 |     pub fn new(min: T, max: T) -> NumberRange<T> {
Dec 19 10:09:02.506 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.506 INFO [stderr]    |
Dec 19 10:09:02.506 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 10:09:02.506 INFO [stderr] 
Dec 19 10:09:02.506 INFO [stderr] warning: method is never used: `scale`
Dec 19 10:09:02.506 INFO [stderr]   --> src/rs/mandelbrot.rs:90:5
Dec 19 10:09:02.506 INFO [stderr]    |
Dec 19 10:09:02.506 INFO [stderr] 90 |     pub fn scale(input: &NumberRange<T>, value: T, output: &NumberRange<T>) -> T {
Dec 19 10:09:02.506 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.506 INFO [stderr] 
Dec 19 10:09:02.506 INFO [stderr] warning: struct is never constructed: `Color`
Dec 19 10:09:02.506 INFO [stderr]   --> src/rs/mandelbrot.rs:96:1
Dec 19 10:09:02.506 INFO [stderr]    |
Dec 19 10:09:02.506 INFO [stderr] 96 | struct Color {
Dec 19 10:09:02.506 INFO [stderr]    | ^^^^^^^^^^^^
Dec 19 10:09:02.506 INFO [stderr] 
Dec 19 10:09:02.506 INFO [stderr] warning: method is never used: `black`
Dec 19 10:09:02.506 INFO [stderr]    --> src/rs/mandelbrot.rs:106:5
Dec 19 10:09:02.506 INFO [stderr]     |
Dec 19 10:09:02.506 INFO [stderr] 106 |     pub fn black() -> &'static Color {
Dec 19 10:09:02.506 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.506 INFO [stderr] 
Dec 19 10:09:02.506 INFO [stderr] warning: static item is never used: `BLACK`
Dec 19 10:09:02.506 INFO [stderr]    --> src/rs/mandelbrot.rs:107:9
Dec 19 10:09:02.506 INFO [stderr]     |
Dec 19 10:09:02.506 INFO [stderr] 107 |         static BLACK: Color = Color {red: 0, green: 0, blue: 0, alpha: 0xFF, abgr: 0};
Dec 19 10:09:02.506 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.506 INFO [stderr] 
Dec 19 10:09:02.506 INFO [stderr] warning: method is never used: `new`
Dec 19 10:09:02.506 INFO [stderr]    --> src/rs/mandelbrot.rs:111:5
Dec 19 10:09:02.506 INFO [stderr]     |
Dec 19 10:09:02.506 INFO [stderr] 111 |     pub fn new(red: u8, green: u8, blue: u8, alpha: u8) -> Color {
Dec 19 10:09:02.506 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.507 INFO [stderr] 
Dec 19 10:09:02.507 INFO [stderr] warning: method is never used: `lerp`
Dec 19 10:09:02.507 INFO [stderr]    --> src/rs/mandelbrot.rs:121:5
Dec 19 10:09:02.507 INFO [stderr]     |
Dec 19 10:09:02.507 INFO [stderr] 121 |     pub fn lerp(color1: &Color, color2: &Color, value: f64) -> Color {
Dec 19 10:09:02.507 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.507 INFO [stderr] 
Dec 19 10:09:02.507 INFO [stderr] warning: method is never used: `new`
Dec 19 10:09:02.507 INFO [stderr]   --> src/rs/mandelbrot.rs:82:5
Dec 19 10:09:02.507 INFO [stderr]    |
Dec 19 10:09:02.507 INFO [stderr] 82 |     pub fn new(min: T, max: T) -> NumberRange<T> {
Dec 19 10:09:02.507 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.507 INFO [stderr]    |
Dec 19 10:09:02.507 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 10:09:02.507 INFO [stderr] 
Dec 19 10:09:02.507 INFO [stderr] warning: method is never used: `scale`
Dec 19 10:09:02.507 INFO [stderr]   --> src/rs/mandelbrot.rs:90:5
Dec 19 10:09:02.507 INFO [stderr]    |
Dec 19 10:09:02.507 INFO [stderr] 90 |     pub fn scale(input: &NumberRange<T>, value: T, output: &NumberRange<T>) -> T {
Dec 19 10:09:02.507 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.507 INFO [stderr] 
Dec 19 10:09:02.507 INFO [stderr] warning: struct is never constructed: `Color`
Dec 19 10:09:02.507 INFO [stderr]   --> src/rs/mandelbrot.rs:96:1
Dec 19 10:09:02.507 INFO [stderr]    |
Dec 19 10:09:02.507 INFO [stderr] 96 | struct Color {
Dec 19 10:09:02.507 INFO [stderr]    | ^^^^^^^^^^^^
Dec 19 10:09:02.507 INFO [stderr] 
Dec 19 10:09:02.507 INFO [stderr] warning: method is never used: `black`
Dec 19 10:09:02.507 INFO [stderr]    --> src/rs/mandelbrot.rs:106:5
Dec 19 10:09:02.507 INFO [stderr]     |
Dec 19 10:09:02.507 INFO [stderr] 106 |     pub fn black() -> &'static Color {
Dec 19 10:09:02.507 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.507 INFO [stderr] 
Dec 19 10:09:02.507 INFO [stderr] warning: static item is never used: `BLACK`
Dec 19 10:09:02.507 INFO [stderr]    --> src/rs/mandelbrot.rs:107:9
Dec 19 10:09:02.507 INFO [stderr]     |
Dec 19 10:09:02.507 INFO [stderr] 107 |         static BLACK: Color = Color {red: 0, green: 0, blue: 0, alpha: 0xFF, abgr: 0};
Dec 19 10:09:02.507 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.507 INFO [stderr] 
Dec 19 10:09:02.507 INFO [stderr] warning: method is never used: `new`
Dec 19 10:09:02.507 INFO [stderr]    --> src/rs/mandelbrot.rs:111:5
Dec 19 10:09:02.507 INFO [stderr]     |
Dec 19 10:09:02.507 INFO [stderr] 111 |     pub fn new(red: u8, green: u8, blue: u8, alpha: u8) -> Color {
Dec 19 10:09:02.507 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.508 INFO [stderr] 
Dec 19 10:09:02.508 INFO [stderr] warning: method is never used: `lerp`
Dec 19 10:09:02.508 INFO [stderr]    --> src/rs/mandelbrot.rs:121:5
Dec 19 10:09:02.508 INFO [stderr]     |
Dec 19 10:09:02.508 INFO [stderr] 121 |     pub fn lerp(color1: &Color, color2: &Color, value: f64) -> Color {
Dec 19 10:09:02.508 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:09:02.508 INFO [stderr] 
Dec 19 10:09:02.512 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Dec 19 10:09:02.838 INFO running `"docker" "inspect" "3233e80571cc1164633e46792fafa195162631f32a2b378155149031f3d4dfa3"`
Dec 19 10:09:02.930 INFO running `"docker" "rm" "-f" "3233e80571cc1164633e46792fafa195162631f32a2b378155149031f3d4dfa3"`
Dec 19 10:09:03.099 INFO [stdout] 3233e80571cc1164633e46792fafa195162631f32a2b378155149031f3d4dfa3