Dec 18 06:05:32.857 INFO checking OneMoreByte/ftp-downloader against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 06:05:32.857 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/OneMoreByte/ftp-downloader:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:05:33.368 INFO [stdout] 93adccd1841fc78bd0a29fd08841bd49ffe15f36fef3d2b17915361093d9f0f0
Dec 18 06:05:33.370 INFO running `"docker" "start" "-a" "93adccd1841fc78bd0a29fd08841bd49ffe15f36fef3d2b17915361093d9f0f0"`
Dec 18 06:05:34.832 INFO [stderr]     Checking num-traits v0.1.34
Dec 18 06:05:34.832 INFO [stderr]     Checking libc v0.2.14
Dec 18 06:05:35.760 INFO [stderr]     Checking memchr v0.1.11
Dec 18 06:05:35.768 INFO [stderr]     Checking thread-id v2.0.0
Dec 18 06:05:35.768 INFO [stderr]     Checking time v0.1.35
Dec 18 06:05:36.260 INFO [stderr]     Checking thread_local v0.2.6
Dec 18 06:05:36.276 INFO [stderr]     Checking aho-corasick v0.5.2
Dec 18 06:05:36.476 INFO [stderr]     Checking num-integer v0.1.32
Dec 18 06:05:37.484 INFO [stderr]     Checking num-iter v0.1.32
Dec 18 06:05:38.244 INFO [stderr]     Checking num v0.1.34
Dec 18 06:05:38.320 INFO [stderr]     Checking regex v0.1.73
Dec 18 06:05:38.521 INFO [stderr]     Checking chrono v0.2.25
Dec 18 06:05:41.261 INFO [stderr]     Checking ftp v2.0.0
Dec 18 06:05:42.041 INFO [stderr]     Checking ftpdown v0.2.0 (/opt/crater/workdir)
Dec 18 06:05:42.480 INFO [stderr] warning: unused import: `ftp::FtpStream`
Dec 18 06:05:42.480 INFO [stderr]   --> src/main.rs:10:5
Dec 18 06:05:42.480 INFO [stderr]    |
Dec 18 06:05:42.480 INFO [stderr] 10 | use ftp::FtpStream;
Dec 18 06:05:42.480 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 18 06:05:42.480 INFO [stderr]    |
Dec 18 06:05:42.480 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 06:05:42.480 INFO [stderr] 
Dec 18 06:05:42.480 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 06:05:42.480 INFO [stderr]    --> src/main.rs:332:37
Dec 18 06:05:42.480 INFO [stderr]     |
Dec 18 06:05:42.480 INFO [stderr] 332 | /                                     ((lsize.checked_mul(100).unwrap())
Dec 18 06:05:42.480 INFO [stderr] 333 | |                                          .checked_div(rsize.unwrap())
Dec 18 06:05:42.480 INFO [stderr] 334 | |                                          .unwrap()),
Dec 18 06:05:42.480 INFO [stderr]     | |___________________________________________________^
Dec 18 06:05:42.480 INFO [stderr]     |
Dec 18 06:05:42.480 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 18 06:05:42.481 INFO [stderr] help: remove these parentheses
Dec 18 06:05:42.481 INFO [stderr]     |
Dec 18 06:05:42.481 INFO [stderr] 332 |                                     (lsize.checked_mul(100).unwrap())
Dec 18 06:05:42.481 INFO [stderr] 333 |                                          .checked_div(rsize.unwrap())
Dec 18 06:05:42.481 INFO [stderr] 334 |                                          .unwrap(),
Dec 18 06:05:42.481 INFO [stderr]     |
Dec 18 06:05:42.481 INFO [stderr] 
Dec 18 06:05:42.488 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 18 06:05:42.488 INFO [stderr]   --> src/util.rs:12:26
Dec 18 06:05:42.488 INFO [stderr]    |
Dec 18 06:05:42.488 INFO [stderr] 12 |     let mut config_dir = env::home_dir().unwrap().to_str().unwrap().to_string();
Dec 18 06:05:42.488 INFO [stderr]    |                          ^^^^^^^^^^^^^
Dec 18 06:05:42.488 INFO [stderr]    |
Dec 18 06:05:42.488 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 06:05:42.488 INFO [stderr] 
Dec 18 06:05:42.488 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 18 06:05:42.488 INFO [stderr]    --> src/main.rs:387:22
Dec 18 06:05:42.488 INFO [stderr]     |
Dec 18 06:05:42.488 INFO [stderr] 387 |     let mut conf_d = env::home_dir().unwrap().to_str().unwrap().to_string();
Dec 18 06:05:42.488 INFO [stderr]     |                      ^^^^^^^^^^^^^
Dec 18 06:05:42.488 INFO [stderr] 
Dec 18 06:05:42.536 INFO [stderr] warning: unused import: `ftp::FtpStream`
Dec 18 06:05:42.536 INFO [stderr]   --> src/main.rs:10:5
Dec 18 06:05:42.536 INFO [stderr]    |
Dec 18 06:05:42.536 INFO [stderr] 10 | use ftp::FtpStream;
Dec 18 06:05:42.536 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 18 06:05:42.536 INFO [stderr]    |
Dec 18 06:05:42.536 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 06:05:42.536 INFO [stderr] 
Dec 18 06:05:42.536 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 06:05:42.536 INFO [stderr]    --> src/main.rs:332:37
Dec 18 06:05:42.536 INFO [stderr]     |
Dec 18 06:05:42.536 INFO [stderr] 332 | /                                     ((lsize.checked_mul(100).unwrap())
Dec 18 06:05:42.536 INFO [stderr] 333 | |                                          .checked_div(rsize.unwrap())
Dec 18 06:05:42.536 INFO [stderr] 334 | |                                          .unwrap()),
Dec 18 06:05:42.536 INFO [stderr]     | |___________________________________________________^
Dec 18 06:05:42.536 INFO [stderr]     |
Dec 18 06:05:42.536 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 18 06:05:42.536 INFO [stderr] help: remove these parentheses
Dec 18 06:05:42.537 INFO [stderr]     |
Dec 18 06:05:42.537 INFO [stderr] 332 |                                     (lsize.checked_mul(100).unwrap())
Dec 18 06:05:42.537 INFO [stderr] 333 |                                          .checked_div(rsize.unwrap())
Dec 18 06:05:42.537 INFO [stderr] 334 |                                          .unwrap(),
Dec 18 06:05:42.537 INFO [stderr]     |
Dec 18 06:05:42.537 INFO [stderr] 
Dec 18 06:05:42.544 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 18 06:05:42.544 INFO [stderr]   --> src/util.rs:12:26
Dec 18 06:05:42.544 INFO [stderr]    |
Dec 18 06:05:42.544 INFO [stderr] 12 |     let mut config_dir = env::home_dir().unwrap().to_str().unwrap().to_string();
Dec 18 06:05:42.544 INFO [stderr]    |                          ^^^^^^^^^^^^^
Dec 18 06:05:42.544 INFO [stderr]    |
Dec 18 06:05:42.544 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 06:05:42.544 INFO [stderr] 
Dec 18 06:05:42.544 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 18 06:05:42.544 INFO [stderr]    --> src/main.rs:387:22
Dec 18 06:05:42.544 INFO [stderr]     |
Dec 18 06:05:42.544 INFO [stderr] 387 |     let mut conf_d = env::home_dir().unwrap().to_str().unwrap().to_string();
Dec 18 06:05:42.544 INFO [stderr]     |                      ^^^^^^^^^^^^^
Dec 18 06:05:42.544 INFO [stderr] 
Dec 18 06:05:42.609 INFO [stderr] warning: unused variable: `dr`
Dec 18 06:05:42.610 INFO [stderr]    --> src/main.rs:217:51
Dec 18 06:05:42.610 INFO [stderr]     |
Dec 18 06:05:42.610 INFO [stderr] 217 | fn download_from_site(mut config: config::Config, dr: bool) -> std::io::Result<()> {
Dec 18 06:05:42.610 INFO [stderr]     |                                                   ^^ help: consider using `_dr` instead
Dec 18 06:05:42.610 INFO [stderr]     |
Dec 18 06:05:42.610 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 06:05:42.610 INFO [stderr] 
Dec 18 06:05:42.610 INFO [stderr] warning: unused variable: `dir`
Dec 18 06:05:42.610 INFO [stderr]    --> src/main.rs:347:29
Dec 18 06:05:42.610 INFO [stderr]     |
Dec 18 06:05:42.610 INFO [stderr] 347 |             fn download_dir(dir: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.610 INFO [stderr]     |                             ^^^ help: consider using `_dir` instead
Dec 18 06:05:42.610 INFO [stderr] 
Dec 18 06:05:42.610 INFO [stderr] warning: unused variable: `file`
Dec 18 06:05:42.610 INFO [stderr]    --> src/main.rs:352:29
Dec 18 06:05:42.610 INFO [stderr]     |
Dec 18 06:05:42.610 INFO [stderr] 352 |             fn fix_name(mut file: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.610 INFO [stderr]     |                             ^^^^ help: consider using `_file` instead
Dec 18 06:05:42.610 INFO [stderr] 
Dec 18 06:05:42.610 INFO [stderr] warning: variable does not need to be mutable
Dec 18 06:05:42.610 INFO [stderr]    --> src/main.rs:219:9
Dec 18 06:05:42.610 INFO [stderr]     |
Dec 18 06:05:42.610 INFO [stderr] 219 |     let mut ftpstream = config.get_ftpstream();
Dec 18 06:05:42.610 INFO [stderr]     |         ----^^^^^^^^^
Dec 18 06:05:42.610 INFO [stderr]     |         |
Dec 18 06:05:42.610 INFO [stderr]     |         help: remove this `mut`
Dec 18 06:05:42.610 INFO [stderr]     |
Dec 18 06:05:42.610 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 06:05:42.610 INFO [stderr] 
Dec 18 06:05:42.616 INFO [stderr] warning: variable does not need to be mutable
Dec 18 06:05:42.617 INFO [stderr]    --> src/main.rs:347:57
Dec 18 06:05:42.617 INFO [stderr]     |
Dec 18 06:05:42.617 INFO [stderr] 347 |             fn download_dir(dir: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.617 INFO [stderr]     |                                                         ----^^^^^^^^^
Dec 18 06:05:42.617 INFO [stderr]     |                                                         |
Dec 18 06:05:42.617 INFO [stderr]     |                                                         help: remove this `mut`
Dec 18 06:05:42.617 INFO [stderr] 
Dec 18 06:05:42.617 INFO [stderr] warning: variable does not need to be mutable
Dec 18 06:05:42.617 INFO [stderr]    --> src/main.rs:352:25
Dec 18 06:05:42.617 INFO [stderr]     |
Dec 18 06:05:42.617 INFO [stderr] 352 |             fn fix_name(mut file: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.617 INFO [stderr]     |                         ----^^^^
Dec 18 06:05:42.617 INFO [stderr]     |                         |
Dec 18 06:05:42.617 INFO [stderr]     |                         help: remove this `mut`
Dec 18 06:05:42.617 INFO [stderr] 
Dec 18 06:05:42.625 INFO [stderr] warning: variable does not need to be mutable
Dec 18 06:05:42.625 INFO [stderr]    --> src/main.rs:352:58
Dec 18 06:05:42.625 INFO [stderr]     |
Dec 18 06:05:42.625 INFO [stderr] 352 |             fn fix_name(mut file: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.625 INFO [stderr]     |                                                          ----^^^^^^^^^
Dec 18 06:05:42.625 INFO [stderr]     |                                                          |
Dec 18 06:05:42.625 INFO [stderr]     |                                                          help: remove this `mut`
Dec 18 06:05:42.625 INFO [stderr] 
Dec 18 06:05:42.652 INFO [stderr] warning: function is never used: `download_dir`
Dec 18 06:05:42.652 INFO [stderr]    --> src/main.rs:347:13
Dec 18 06:05:42.652 INFO [stderr]     |
Dec 18 06:05:42.652 INFO [stderr] 347 |             fn download_dir(dir: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.652 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:05:42.652 INFO [stderr]     |
Dec 18 06:05:42.652 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 06:05:42.652 INFO [stderr] 
Dec 18 06:05:42.652 INFO [stderr] warning: function is never used: `fix_name`
Dec 18 06:05:42.652 INFO [stderr]    --> src/main.rs:352:13
Dec 18 06:05:42.652 INFO [stderr]     |
Dec 18 06:05:42.652 INFO [stderr] 352 |             fn fix_name(mut file: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.652 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:05:42.652 INFO [stderr] 
Dec 18 06:05:42.652 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:05:42.652 INFO [stderr]   --> src/util.rs:34:9
Dec 18 06:05:42.652 INFO [stderr]    |
Dec 18 06:05:42.652 INFO [stderr] 34 |         config_raw.read_to_string(&mut buff);
Dec 18 06:05:42.652 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:05:42.652 INFO [stderr]    |
Dec 18 06:05:42.652 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:05:42.652 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:05:42.652 INFO [stderr] 
Dec 18 06:05:42.668 INFO [stderr] warning: unused variable: `dr`
Dec 18 06:05:42.668 INFO [stderr]    --> src/main.rs:217:51
Dec 18 06:05:42.668 INFO [stderr]     |
Dec 18 06:05:42.668 INFO [stderr] 217 | fn download_from_site(mut config: config::Config, dr: bool) -> std::io::Result<()> {
Dec 18 06:05:42.668 INFO [stderr]     |                                                   ^^ help: consider using `_dr` instead
Dec 18 06:05:42.668 INFO [stderr]     |
Dec 18 06:05:42.676 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 06:05:42.676 INFO [stderr] 
Dec 18 06:05:42.676 INFO [stderr] warning: unused variable: `dir`
Dec 18 06:05:42.676 INFO [stderr]    --> src/main.rs:347:29
Dec 18 06:05:42.676 INFO [stderr]     |
Dec 18 06:05:42.676 INFO [stderr] 347 |             fn download_dir(dir: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.676 INFO [stderr]     |                             ^^^ help: consider using `_dir` instead
Dec 18 06:05:42.676 INFO [stderr] 
Dec 18 06:05:42.676 INFO [stderr] warning: unused variable: `file`
Dec 18 06:05:42.676 INFO [stderr]    --> src/main.rs:352:29
Dec 18 06:05:42.676 INFO [stderr]     |
Dec 18 06:05:42.676 INFO [stderr] 352 |             fn fix_name(mut file: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.676 INFO [stderr]     |                             ^^^^ help: consider using `_file` instead
Dec 18 06:05:42.676 INFO [stderr] 
Dec 18 06:05:42.677 INFO [stderr] warning: variable does not need to be mutable
Dec 18 06:05:42.677 INFO [stderr]    --> src/main.rs:219:9
Dec 18 06:05:42.677 INFO [stderr]     |
Dec 18 06:05:42.677 INFO [stderr] 219 |     let mut ftpstream = config.get_ftpstream();
Dec 18 06:05:42.677 INFO [stderr]     |         ----^^^^^^^^^
Dec 18 06:05:42.677 INFO [stderr]     |         |
Dec 18 06:05:42.677 INFO [stderr]     |         help: remove this `mut`
Dec 18 06:05:42.677 INFO [stderr]     |
Dec 18 06:05:42.677 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 06:05:42.677 INFO [stderr] 
Dec 18 06:05:42.684 INFO [stderr] warning: variable does not need to be mutable
Dec 18 06:05:42.684 INFO [stderr]    --> src/main.rs:347:57
Dec 18 06:05:42.684 INFO [stderr]     |
Dec 18 06:05:42.684 INFO [stderr] 347 |             fn download_dir(dir: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.684 INFO [stderr]     |                                                         ----^^^^^^^^^
Dec 18 06:05:42.684 INFO [stderr]     |                                                         |
Dec 18 06:05:42.684 INFO [stderr]     |                                                         help: remove this `mut`
Dec 18 06:05:42.684 INFO [stderr] 
Dec 18 06:05:42.684 INFO [stderr] warning: variable does not need to be mutable
Dec 18 06:05:42.684 INFO [stderr]    --> src/main.rs:352:25
Dec 18 06:05:42.684 INFO [stderr]     |
Dec 18 06:05:42.684 INFO [stderr] 352 |             fn fix_name(mut file: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.684 INFO [stderr]     |                         ----^^^^
Dec 18 06:05:42.684 INFO [stderr]     |                         |
Dec 18 06:05:42.684 INFO [stderr]     |                         help: remove this `mut`
Dec 18 06:05:42.684 INFO [stderr] 
Dec 18 06:05:42.684 INFO [stderr] warning: variable does not need to be mutable
Dec 18 06:05:42.684 INFO [stderr]    --> src/main.rs:352:58
Dec 18 06:05:42.684 INFO [stderr]     |
Dec 18 06:05:42.684 INFO [stderr] 352 |             fn fix_name(mut file: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.684 INFO [stderr]     |                                                          ----^^^^^^^^^
Dec 18 06:05:42.684 INFO [stderr]     |                                                          |
Dec 18 06:05:42.684 INFO [stderr]     |                                                          help: remove this `mut`
Dec 18 06:05:42.692 INFO [stderr] 
Dec 18 06:05:42.717 INFO [stderr] warning: function is never used: `download_dir`
Dec 18 06:05:42.717 INFO [stderr]    --> src/main.rs:347:13
Dec 18 06:05:42.717 INFO [stderr]     |
Dec 18 06:05:42.717 INFO [stderr] 347 |             fn download_dir(dir: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.717 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:05:42.717 INFO [stderr]     |
Dec 18 06:05:42.717 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 06:05:42.717 INFO [stderr] 
Dec 18 06:05:42.717 INFO [stderr] warning: function is never used: `fix_name`
Dec 18 06:05:42.717 INFO [stderr]    --> src/main.rs:352:13
Dec 18 06:05:42.717 INFO [stderr]     |
Dec 18 06:05:42.717 INFO [stderr] 352 |             fn fix_name(mut file: &config::Downloadable, mut ftpstream: ftp::FtpStream) -> ftp::FtpStream {
Dec 18 06:05:42.717 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:05:42.717 INFO [stderr] 
Dec 18 06:05:42.717 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:05:42.717 INFO [stderr]   --> src/util.rs:34:9
Dec 18 06:05:42.717 INFO [stderr]    |
Dec 18 06:05:42.717 INFO [stderr] 34 |         config_raw.read_to_string(&mut buff);
Dec 18 06:05:42.717 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:05:42.717 INFO [stderr]    |
Dec 18 06:05:42.717 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:05:42.717 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:05:42.717 INFO [stderr] 
Dec 18 06:05:42.745 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.03s
Dec 18 06:05:43.336 INFO running `"docker" "inspect" "93adccd1841fc78bd0a29fd08841bd49ffe15f36fef3d2b17915361093d9f0f0"`
Dec 18 06:05:43.604 INFO running `"docker" "rm" "-f" "93adccd1841fc78bd0a29fd08841bd49ffe15f36fef3d2b17915361093d9f0f0"`
Dec 18 06:05:43.888 INFO [stdout] 93adccd1841fc78bd0a29fd08841bd49ffe15f36fef3d2b17915361093d9f0f0