Dec 19 21:59:21.276 INFO checking SSStormy/stdf-spectrogram against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 21:59:21.276 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/SSStormy/stdf-spectrogram:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:59:21.775 INFO [stdout] 443c156498d4af1c0a1703c697955b4dd541d88dcf603c227160536d5a35c9b8
Dec 19 21:59:21.777 INFO running `"docker" "start" "-a" "443c156498d4af1c0a1703c697955b4dd541d88dcf603c227160536d5a35c9b8"`
Dec 19 21:59:24.716 INFO [stderr]     Checking spmc v0.2.2
Dec 19 21:59:24.717 INFO [stderr]     Checking bmp v0.4.0
Dec 19 21:59:24.717 INFO [stderr]     Checking rustfft v2.0.0
Dec 19 21:59:26.478 INFO [stderr]     Checking fft v0.1.0 (/opt/crater/workdir)
Dec 19 21:59:27.145 INFO [stderr] warning: unused variable: `freq`
Dec 19 21:59:27.146 INFO [stderr]   --> src/main.rs:68:29
Dec 19 21:59:27.146 INFO [stderr]    |
Dec 19 21:59:27.146 INFO [stderr] 68 |                         let freq = i as f32 * sampleRate as f32 / FFT_SIZE as f32;
Dec 19 21:59:27.147 INFO [stderr]    |                             ^^^^ help: consider using `_freq` instead
Dec 19 21:59:27.147 INFO [stderr]    |
Dec 19 21:59:27.147 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:59:27.147 INFO [stderr] 
Dec 19 21:59:27.148 INFO [stderr] warning: unused variable: `sampleSize`
Dec 19 21:59:27.149 INFO [stderr]   --> src/main.rs:40:9
Dec 19 21:59:27.149 INFO [stderr]    |
Dec 19 21:59:27.149 INFO [stderr] 40 |     let sampleSize = reader.spec().sample_rate;
Dec 19 21:59:27.150 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_sampleSize` instead
Dec 19 21:59:27.150 INFO [stderr] 
Dec 19 21:59:27.150 INFO [stderr] warning: unused variable: `i`
Dec 19 21:59:27.151 INFO [stderr]   --> src/main.rs:95:9
Dec 19 21:59:27.151 INFO [stderr]    |
Dec 19 21:59:27.151 INFO [stderr] 95 |     for i in 0..NUM_WORKERS {
Dec 19 21:59:27.151 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 19 21:59:27.151 INFO [stderr] 
Dec 19 21:59:27.191 INFO [stderr] warning: unused variable: `freq`
Dec 19 21:59:27.191 INFO [stderr]   --> src/main.rs:68:29
Dec 19 21:59:27.191 INFO [stderr]    |
Dec 19 21:59:27.191 INFO [stderr] 68 |                         let freq = i as f32 * sampleRate as f32 / FFT_SIZE as f32;
Dec 19 21:59:27.191 INFO [stderr]    |                             ^^^^ help: consider using `_freq` instead
Dec 19 21:59:27.191 INFO [stderr]    |
Dec 19 21:59:27.200 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:59:27.200 INFO [stderr] 
Dec 19 21:59:27.200 INFO [stderr] warning: unused variable: `sampleSize`
Dec 19 21:59:27.200 INFO [stderr]   --> src/main.rs:40:9
Dec 19 21:59:27.200 INFO [stderr]    |
Dec 19 21:59:27.200 INFO [stderr] 40 |     let sampleSize = reader.spec().sample_rate;
Dec 19 21:59:27.200 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_sampleSize` instead
Dec 19 21:59:27.200 INFO [stderr] 
Dec 19 21:59:27.200 INFO [stderr] warning: unused variable: `i`
Dec 19 21:59:27.200 INFO [stderr]   --> src/main.rs:95:9
Dec 19 21:59:27.200 INFO [stderr]    |
Dec 19 21:59:27.200 INFO [stderr] 95 |     for i in 0..NUM_WORKERS {
Dec 19 21:59:27.200 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 19 21:59:27.200 INFO [stderr] 
Dec 19 21:59:27.201 INFO [stderr] warning: variable `sampleRate` should have a snake case name such as `sample_rate`
Dec 19 21:59:27.201 INFO [stderr]   --> src/main.rs:28:27
Dec 19 21:59:27.201 INFO [stderr]    |
Dec 19 21:59:27.201 INFO [stderr] 28 | fn freq_to_bin(freq: u32, sampleRate: u32) -> usize {
Dec 19 21:59:27.201 INFO [stderr]    |                           ^^^^^^^^^^
Dec 19 21:59:27.201 INFO [stderr]    |
Dec 19 21:59:27.201 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 19 21:59:27.201 INFO [stderr] 
Dec 19 21:59:27.202 INFO [stderr] warning: variable `sampleSize` should have a snake case name such as `sample_size`
Dec 19 21:59:27.202 INFO [stderr]   --> src/main.rs:40:9
Dec 19 21:59:27.202 INFO [stderr]    |
Dec 19 21:59:27.202 INFO [stderr] 40 |     let sampleSize = reader.spec().sample_rate;
Dec 19 21:59:27.202 INFO [stderr]    |         ^^^^^^^^^^
Dec 19 21:59:27.202 INFO [stderr] 
Dec 19 21:59:27.202 INFO [stderr] warning: variable `jobProd` should have a snake case name such as `job_prod`
Dec 19 21:59:27.202 INFO [stderr]   --> src/main.rs:50:10
Dec 19 21:59:27.202 INFO [stderr]    |
Dec 19 21:59:27.202 INFO [stderr] 50 |     let (jobProd, jobRecv) = spmc::channel();
Dec 19 21:59:27.202 INFO [stderr]    |          ^^^^^^^
Dec 19 21:59:27.202 INFO [stderr] 
Dec 19 21:59:27.202 INFO [stderr] warning: variable `jobRecv` should have a snake case name such as `job_recv`
Dec 19 21:59:27.202 INFO [stderr]   --> src/main.rs:50:19
Dec 19 21:59:27.202 INFO [stderr]    |
Dec 19 21:59:27.202 INFO [stderr] 50 |     let (jobProd, jobRecv) = spmc::channel();
Dec 19 21:59:27.202 INFO [stderr]    |                   ^^^^^^^
Dec 19 21:59:27.202 INFO [stderr] 
Dec 19 21:59:27.202 INFO [stderr] warning: variable `printProd` should have a snake case name such as `print_prod`
Dec 19 21:59:27.202 INFO [stderr]   --> src/main.rs:51:10
Dec 19 21:59:27.202 INFO [stderr]    |
Dec 19 21:59:27.202 INFO [stderr] 51 |     let (printProd, printRecv) = mpsc::channel();
Dec 19 21:59:27.202 INFO [stderr]    |          ^^^^^^^^^
Dec 19 21:59:27.202 INFO [stderr] 
Dec 19 21:59:27.202 INFO [stderr] warning: variable `printRecv` should have a snake case name such as `print_recv`
Dec 19 21:59:27.203 INFO [stderr]   --> src/main.rs:51:21
Dec 19 21:59:27.203 INFO [stderr]    |
Dec 19 21:59:27.203 INFO [stderr] 51 |     let (printProd, printRecv) = mpsc::channel();
Dec 19 21:59:27.203 INFO [stderr]    |                     ^^^^^^^^^
Dec 19 21:59:27.203 INFO [stderr] 
Dec 19 21:59:27.203 INFO [stderr] warning: variable `widthPerIter` should have a snake case name such as `width_per_iter`
Dec 19 21:59:27.203 INFO [stderr]   --> src/main.rs:55:13
Dec 19 21:59:27.203 INFO [stderr]    |
Dec 19 21:59:27.203 INFO [stderr] 55 |         let widthPerIter = (1_f32 + (FFT_SIZE as f32/ 1024_f32).round()) as u32;
Dec 19 21:59:27.203 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 19 21:59:27.203 INFO [stderr] 
Dec 19 21:59:27.204 INFO [stderr] warning: variable `sampleRate` should have a snake case name such as `sample_rate`
Dec 19 21:59:27.204 INFO [stderr]   --> src/main.rs:61:50
Dec 19 21:59:27.204 INFO [stderr]    |
Dec 19 21:59:27.204 INFO [stderr] 61 |                 PrintJob::Print(iteration, data, sampleRate) => {
Dec 19 21:59:27.204 INFO [stderr]    |                                                  ^^^^^^^^^^
Dec 19 21:59:27.204 INFO [stderr] 
Dec 19 21:59:27.204 INFO [stderr] warning: variable `minFreq` should have a snake case name such as `min_freq`
Dec 19 21:59:27.204 INFO [stderr]   --> src/main.rs:62:25
Dec 19 21:59:27.204 INFO [stderr]    |
Dec 19 21:59:27.204 INFO [stderr] 62 |                     let minFreq = 20;
Dec 19 21:59:27.204 INFO [stderr]    |                         ^^^^^^^
Dec 19 21:59:27.205 INFO [stderr] 
Dec 19 21:59:27.205 INFO [stderr] warning: variable `maxFreq` should have a snake case name such as `max_freq`
Dec 19 21:59:27.205 INFO [stderr]   --> src/main.rs:63:25
Dec 19 21:59:27.205 INFO [stderr]    |
Dec 19 21:59:27.205 INFO [stderr] 63 |                     let maxFreq = 8000;
Dec 19 21:59:27.205 INFO [stderr]    |                         ^^^^^^^
Dec 19 21:59:27.205 INFO [stderr] 
Dec 19 21:59:27.205 INFO [stderr] warning: variable `printThread` should have a snake case name such as `print_thread`
Dec 19 21:59:27.205 INFO [stderr]   --> src/main.rs:53:9
Dec 19 21:59:27.205 INFO [stderr]    |
Dec 19 21:59:27.205 INFO [stderr] 53 |     let printThread = thread::spawn(move || {
Dec 19 21:59:27.205 INFO [stderr]    |         ^^^^^^^^^^^
Dec 19 21:59:27.205 INFO [stderr] 
Dec 19 21:59:27.206 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:59:27.206 INFO [stderr]   --> src/main.rs:88:9
Dec 19 21:59:27.206 INFO [stderr]    |
Dec 19 21:59:27.206 INFO [stderr] 88 |         jobProd.send(iteration);
Dec 19 21:59:27.206 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:59:27.206 INFO [stderr]    |
Dec 19 21:59:27.206 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:59:27.206 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:59:27.206 INFO [stderr] 
Dec 19 21:59:27.206 INFO [stderr] warning: variable `jobRecv` should have a snake case name such as `job_recv`
Dec 19 21:59:27.206 INFO [stderr]   --> src/main.rs:96:13
Dec 19 21:59:27.206 INFO [stderr]    |
Dec 19 21:59:27.206 INFO [stderr] 96 |         let jobRecv = jobRecv.clone();
Dec 19 21:59:27.206 INFO [stderr]    |             ^^^^^^^
Dec 19 21:59:27.206 INFO [stderr] 
Dec 19 21:59:27.206 INFO [stderr] warning: variable `printProd` should have a snake case name such as `print_prod`
Dec 19 21:59:27.207 INFO [stderr]   --> src/main.rs:97:13
Dec 19 21:59:27.207 INFO [stderr]    |
Dec 19 21:59:27.207 INFO [stderr] 97 |         let printProd = printProd.clone();
Dec 19 21:59:27.207 INFO [stderr]    |             ^^^^^^^^^
Dec 19 21:59:27.207 INFO [stderr] 
Dec 19 21:59:27.207 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:59:27.207 INFO [stderr]    --> src/main.rs:113:25
Dec 19 21:59:27.207 INFO [stderr]     |
Dec 19 21:59:27.207 INFO [stderr] 113 |                         reader.seek(iteration * spec.channels as u32 * FFT_SIZE as u32);
Dec 19 21:59:27.207 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:59:27.207 INFO [stderr]     |
Dec 19 21:59:27.207 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:59:27.207 INFO [stderr] 
Dec 19 21:59:27.208 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:59:27.208 INFO [stderr]    --> src/main.rs:144:25
Dec 19 21:59:27.208 INFO [stderr]     |
Dec 19 21:59:27.208 INFO [stderr] 144 |                         printProd.send(PrintJob::Print(iteration, output, spec.sample_rate));
Dec 19 21:59:27.208 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:59:27.208 INFO [stderr]     |
Dec 19 21:59:27.208 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:59:27.208 INFO [stderr] 
Dec 19 21:59:27.268 INFO [stderr] warning: variable `sampleRate` should have a snake case name such as `sample_rate`
Dec 19 21:59:27.268 INFO [stderr]   --> src/main.rs:28:27
Dec 19 21:59:27.268 INFO [stderr]    |
Dec 19 21:59:27.268 INFO [stderr] 28 | fn freq_to_bin(freq: u32, sampleRate: u32) -> usize {
Dec 19 21:59:27.268 INFO [stderr]    |                           ^^^^^^^^^^
Dec 19 21:59:27.268 INFO [stderr]    |
Dec 19 21:59:27.268 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 19 21:59:27.268 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `sampleSize` should have a snake case name such as `sample_size`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:40:9
Dec 19 21:59:27.269 INFO [stderr]    |
Dec 19 21:59:27.269 INFO [stderr] 40 |     let sampleSize = reader.spec().sample_rate;
Dec 19 21:59:27.269 INFO [stderr]    |         ^^^^^^^^^^
Dec 19 21:59:27.269 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `jobProd` should have a snake case name such as `job_prod`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:50:10
Dec 19 21:59:27.269 INFO [stderr]    |
Dec 19 21:59:27.269 INFO [stderr] 50 |     let (jobProd, jobRecv) = spmc::channel();
Dec 19 21:59:27.269 INFO [stderr]    |          ^^^^^^^
Dec 19 21:59:27.269 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `jobRecv` should have a snake case name such as `job_recv`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:50:19
Dec 19 21:59:27.269 INFO [stderr]    |
Dec 19 21:59:27.269 INFO [stderr] 50 |     let (jobProd, jobRecv) = spmc::channel();
Dec 19 21:59:27.269 INFO [stderr]    |                   ^^^^^^^
Dec 19 21:59:27.269 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `printProd` should have a snake case name such as `print_prod`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:51:10
Dec 19 21:59:27.269 INFO [stderr]    |
Dec 19 21:59:27.269 INFO [stderr] 51 |     let (printProd, printRecv) = mpsc::channel();
Dec 19 21:59:27.269 INFO [stderr]    |          ^^^^^^^^^
Dec 19 21:59:27.269 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `printRecv` should have a snake case name such as `print_recv`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:51:21
Dec 19 21:59:27.269 INFO [stderr]    |
Dec 19 21:59:27.269 INFO [stderr] 51 |     let (printProd, printRecv) = mpsc::channel();
Dec 19 21:59:27.269 INFO [stderr]    |                     ^^^^^^^^^
Dec 19 21:59:27.269 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `widthPerIter` should have a snake case name such as `width_per_iter`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:55:13
Dec 19 21:59:27.269 INFO [stderr]    |
Dec 19 21:59:27.269 INFO [stderr] 55 |         let widthPerIter = (1_f32 + (FFT_SIZE as f32/ 1024_f32).round()) as u32;
Dec 19 21:59:27.269 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 19 21:59:27.269 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `sampleRate` should have a snake case name such as `sample_rate`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:61:50
Dec 19 21:59:27.269 INFO [stderr]    |
Dec 19 21:59:27.269 INFO [stderr] 61 |                 PrintJob::Print(iteration, data, sampleRate) => {
Dec 19 21:59:27.269 INFO [stderr]    |                                                  ^^^^^^^^^^
Dec 19 21:59:27.269 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `minFreq` should have a snake case name such as `min_freq`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:62:25
Dec 19 21:59:27.269 INFO [stderr]    |
Dec 19 21:59:27.269 INFO [stderr] 62 |                     let minFreq = 20;
Dec 19 21:59:27.269 INFO [stderr]    |                         ^^^^^^^
Dec 19 21:59:27.269 INFO [stderr] 
Dec 19 21:59:27.269 INFO [stderr] warning: variable `maxFreq` should have a snake case name such as `max_freq`
Dec 19 21:59:27.269 INFO [stderr]   --> src/main.rs:63:25
Dec 19 21:59:27.270 INFO [stderr]    |
Dec 19 21:59:27.270 INFO [stderr] 63 |                     let maxFreq = 8000;
Dec 19 21:59:27.270 INFO [stderr]    |                         ^^^^^^^
Dec 19 21:59:27.270 INFO [stderr] 
Dec 19 21:59:27.270 INFO [stderr] warning: variable `printThread` should have a snake case name such as `print_thread`
Dec 19 21:59:27.270 INFO [stderr]   --> src/main.rs:53:9
Dec 19 21:59:27.270 INFO [stderr]    |
Dec 19 21:59:27.270 INFO [stderr] 53 |     let printThread = thread::spawn(move || {
Dec 19 21:59:27.270 INFO [stderr]    |         ^^^^^^^^^^^
Dec 19 21:59:27.270 INFO [stderr] 
Dec 19 21:59:27.270 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:59:27.270 INFO [stderr]   --> src/main.rs:88:9
Dec 19 21:59:27.270 INFO [stderr]    |
Dec 19 21:59:27.270 INFO [stderr] 88 |         jobProd.send(iteration);
Dec 19 21:59:27.270 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:59:27.270 INFO [stderr]    |
Dec 19 21:59:27.270 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:59:27.270 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:59:27.270 INFO [stderr] 
Dec 19 21:59:27.270 INFO [stderr] warning: variable `jobRecv` should have a snake case name such as `job_recv`
Dec 19 21:59:27.270 INFO [stderr]   --> src/main.rs:96:13
Dec 19 21:59:27.270 INFO [stderr]    |
Dec 19 21:59:27.270 INFO [stderr] 96 |         let jobRecv = jobRecv.clone();
Dec 19 21:59:27.270 INFO [stderr]    |             ^^^^^^^
Dec 19 21:59:27.270 INFO [stderr] 
Dec 19 21:59:27.270 INFO [stderr] warning: variable `printProd` should have a snake case name such as `print_prod`
Dec 19 21:59:27.270 INFO [stderr]   --> src/main.rs:97:13
Dec 19 21:59:27.270 INFO [stderr]    |
Dec 19 21:59:27.270 INFO [stderr] 97 |         let printProd = printProd.clone();
Dec 19 21:59:27.270 INFO [stderr]    |             ^^^^^^^^^
Dec 19 21:59:27.270 INFO [stderr] 
Dec 19 21:59:27.270 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:59:27.270 INFO [stderr]    --> src/main.rs:113:25
Dec 19 21:59:27.270 INFO [stderr]     |
Dec 19 21:59:27.270 INFO [stderr] 113 |                         reader.seek(iteration * spec.channels as u32 * FFT_SIZE as u32);
Dec 19 21:59:27.270 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:59:27.270 INFO [stderr]     |
Dec 19 21:59:27.270 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:59:27.270 INFO [stderr] 
Dec 19 21:59:27.270 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:59:27.270 INFO [stderr]    --> src/main.rs:144:25
Dec 19 21:59:27.270 INFO [stderr]     |
Dec 19 21:59:27.270 INFO [stderr] 144 |                         printProd.send(PrintJob::Print(iteration, output, spec.sample_rate));
Dec 19 21:59:27.270 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:59:27.270 INFO [stderr]     |
Dec 19 21:59:27.270 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:59:27.270 INFO [stderr] 
Dec 19 21:59:27.306 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.64s
Dec 19 21:59:28.650 INFO running `"docker" "inspect" "443c156498d4af1c0a1703c697955b4dd541d88dcf603c227160536d5a35c9b8"`
Dec 19 21:59:28.922 INFO running `"docker" "rm" "-f" "443c156498d4af1c0a1703c697955b4dd541d88dcf603c227160536d5a35c9b8"`
Dec 19 21:59:29.208 INFO [stdout] 443c156498d4af1c0a1703c697955b4dd541d88dcf603c227160536d5a35c9b8