Dec 13 21:28:07.232 INFO testing dgoetsch/glutton against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 21:28:07.232 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 21:28:07.639 INFO [stdout] 3fdf0778f97468ecb28b1c041a0d25d2a5f7de2172e388a0fd03c3cc0bff44be
Dec 13 21:28:07.643 INFO running `"docker" "start" "-a" "3fdf0778f97468ecb28b1c041a0d25d2a5f7de2172e388a0fd03c3cc0bff44be"`
Dec 13 21:28:08.903 INFO [stderr] usermod: no changes
Dec 13 21:28:08.972 INFO [stderr]    Compiling rust-by-ex v0.1.0 (/source)
Dec 13 21:28:09.301 INFO [stderr] warning: unused import: `std::iter::Map`
Dec 13 21:28:09.301 INFO [stderr]  --> src/main.rs:6:5
Dec 13 21:28:09.301 INFO [stderr]   |
Dec 13 21:28:09.301 INFO [stderr] 6 | use std::iter::Map;
Dec 13 21:28:09.301 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 13 21:28:09.301 INFO [stderr]   |
Dec 13 21:28:09.301 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 21:28:09.301 INFO [stderr] 
Dec 13 21:28:09.301 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 21:28:09.301 INFO [stderr]   --> src/main.rs:18:21
Dec 13 21:28:09.301 INFO [stderr]    |
Dec 13 21:28:09.301 INFO [stderr] 18 |         for idx in  (0..self.at_a_time) {
Dec 13 21:28:09.301 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 13 21:28:09.301 INFO [stderr]    |
Dec 13 21:28:09.301 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 13 21:28:09.302 INFO [stderr] 
Dec 13 21:28:09.328 INFO [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead
Dec 13 21:28:09.329 INFO [stderr]   --> src/main.rs:32:33
Dec 13 21:28:09.329 INFO [stderr]    |
Dec 13 21:28:09.329 INFO [stderr] 32 |         let name = thread_rng().gen_ascii_chars().take(10) .collect::<String>();
Dec 13 21:28:09.329 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^
Dec 13 21:28:09.329 INFO [stderr]    |
Dec 13 21:28:09.329 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 13 21:28:09.329 INFO [stderr] 
Dec 13 21:28:09.351 INFO [stderr] warning: unused variable: `idx`
Dec 13 21:28:09.351 INFO [stderr]   --> src/main.rs:18:13
Dec 13 21:28:09.351 INFO [stderr]    |
Dec 13 21:28:09.351 INFO [stderr] 18 |         for idx in  (0..self.at_a_time) {
Dec 13 21:28:09.351 INFO [stderr]    |             ^^^ help: consider using `_idx` instead
Dec 13 21:28:09.351 INFO [stderr]    |
Dec 13 21:28:09.351 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 21:28:09.351 INFO [stderr] 
Dec 13 21:28:09.351 INFO [stderr] warning: unused variable: `cd_res`
Dec 13 21:28:09.351 INFO [stderr]   --> src/main.rs:38:13
Dec 13 21:28:09.351 INFO [stderr]    |
Dec 13 21:28:09.351 INFO [stderr] 38 |         let cd_res = std::fs::create_dir_all(sub_dir.as_str());
Dec 13 21:28:09.351 INFO [stderr]    |             ^^^^^^ help: consider using `_cd_res` instead
Dec 13 21:28:09.351 INFO [stderr] 
Dec 13 21:28:09.351 INFO [stderr] warning: unused variable: `cf_res`
Dec 13 21:28:09.351 INFO [stderr]   --> src/main.rs:46:13
Dec 13 21:28:09.351 INFO [stderr]    |
Dec 13 21:28:09.351 INFO [stderr] 46 |         let cf_res = std::fs::File::create(file_name.as_str())
Dec 13 21:28:09.351 INFO [stderr]    |             ^^^^^^ help: consider using `_cf_res` instead
Dec 13 21:28:09.351 INFO [stderr] 
Dec 13 21:28:09.360 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 21:28:09.360 INFO [stderr]   --> src/main.rs:23:13
Dec 13 21:28:09.360 INFO [stderr]    |
Dec 13 21:28:09.360 INFO [stderr] 23 |             handler.join();
Dec 13 21:28:09.360 INFO [stderr]    |             ^^^^^^^^^^^^^^^
Dec 13 21:28:09.360 INFO [stderr]    |
Dec 13 21:28:09.360 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 21:28:09.360 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 21:28:09.360 INFO [stderr] 
Dec 13 21:28:09.917 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
Dec 13 21:28:09.922 INFO [stderr] su: No module specific data is present
Dec 13 21:28:10.228 INFO running `"docker" "inspect" "3fdf0778f97468ecb28b1c041a0d25d2a5f7de2172e388a0fd03c3cc0bff44be"`
Dec 13 21:28:10.365 INFO running `"docker" "rm" "-f" "3fdf0778f97468ecb28b1c041a0d25d2a5f7de2172e388a0fd03c3cc0bff44be"`
Dec 13 21:28:10.536 INFO [stdout] 3fdf0778f97468ecb28b1c041a0d25d2a5f7de2172e388a0fd03c3cc0bff44be
Dec 13 21:28:10.547 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 21:28:10.878 INFO [stdout] 4ba2a36678b0d2d05557954cb94aaec82d905f1694695741a551b4b596f12ca5
Dec 13 21:28:10.882 INFO running `"docker" "start" "-a" "4ba2a36678b0d2d05557954cb94aaec82d905f1694695741a551b4b596f12ca5"`
Dec 13 21:28:11.451 INFO [stderr] usermod: no changes
Dec 13 21:28:11.527 INFO [stderr]    Compiling rust-by-ex v0.1.0 (/source)
Dec 13 21:28:11.975 INFO [stderr] warning: unused import: `std::iter::Map`
Dec 13 21:28:11.975 INFO [stderr]  --> src/main.rs:6:5
Dec 13 21:28:11.975 INFO [stderr]   |
Dec 13 21:28:11.975 INFO [stderr] 6 | use std::iter::Map;
Dec 13 21:28:11.975 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 13 21:28:11.975 INFO [stderr]   |
Dec 13 21:28:11.975 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 21:28:11.975 INFO [stderr] 
Dec 13 21:28:11.975 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 13 21:28:11.975 INFO [stderr]   --> src/main.rs:18:21
Dec 13 21:28:11.975 INFO [stderr]    |
Dec 13 21:28:11.975 INFO [stderr] 18 |         for idx in  (0..self.at_a_time) {
Dec 13 21:28:11.975 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 13 21:28:11.975 INFO [stderr]    |
Dec 13 21:28:11.975 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 13 21:28:11.975 INFO [stderr] 
Dec 13 21:28:11.999 INFO [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead
Dec 13 21:28:11.999 INFO [stderr]   --> src/main.rs:32:33
Dec 13 21:28:11.999 INFO [stderr]    |
Dec 13 21:28:11.999 INFO [stderr] 32 |         let name = thread_rng().gen_ascii_chars().take(10) .collect::<String>();
Dec 13 21:28:11.999 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^
Dec 13 21:28:11.999 INFO [stderr]    |
Dec 13 21:28:11.999 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 13 21:28:11.999 INFO [stderr] 
Dec 13 21:28:12.019 INFO [stderr] warning: unused variable: `idx`
Dec 13 21:28:12.019 INFO [stderr]   --> src/main.rs:18:13
Dec 13 21:28:12.019 INFO [stderr]    |
Dec 13 21:28:12.019 INFO [stderr] 18 |         for idx in  (0..self.at_a_time) {
Dec 13 21:28:12.019 INFO [stderr]    |             ^^^ help: consider using `_idx` instead
Dec 13 21:28:12.019 INFO [stderr]    |
Dec 13 21:28:12.023 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 21:28:12.023 INFO [stderr] 
Dec 13 21:28:12.023 INFO [stderr] warning: unused variable: `cd_res`
Dec 13 21:28:12.023 INFO [stderr]   --> src/main.rs:38:13
Dec 13 21:28:12.023 INFO [stderr]    |
Dec 13 21:28:12.023 INFO [stderr] 38 |         let cd_res = std::fs::create_dir_all(sub_dir.as_str());
Dec 13 21:28:12.023 INFO [stderr]    |             ^^^^^^ help: consider using `_cd_res` instead
Dec 13 21:28:12.023 INFO [stderr] 
Dec 13 21:28:12.023 INFO [stderr] warning: unused variable: `cf_res`
Dec 13 21:28:12.023 INFO [stderr]   --> src/main.rs:46:13
Dec 13 21:28:12.023 INFO [stderr]    |
Dec 13 21:28:12.023 INFO [stderr] 46 |         let cf_res = std::fs::File::create(file_name.as_str())
Dec 13 21:28:12.023 INFO [stderr]    |             ^^^^^^ help: consider using `_cf_res` instead
Dec 13 21:28:12.023 INFO [stderr] 
Dec 13 21:28:12.031 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 21:28:12.031 INFO [stderr]   --> src/main.rs:23:13
Dec 13 21:28:12.031 INFO [stderr]    |
Dec 13 21:28:12.031 INFO [stderr] 23 |             handler.join();
Dec 13 21:28:12.031 INFO [stderr]    |             ^^^^^^^^^^^^^^^
Dec 13 21:28:12.031 INFO [stderr]    |
Dec 13 21:28:12.031 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 21:28:12.031 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 21:28:12.031 INFO [stderr] 
Dec 13 21:28:12.271 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
Dec 13 21:28:12.275 INFO [stderr] su: No module specific data is present
Dec 13 21:28:12.576 INFO running `"docker" "inspect" "4ba2a36678b0d2d05557954cb94aaec82d905f1694695741a551b4b596f12ca5"`
Dec 13 21:28:12.669 INFO running `"docker" "rm" "-f" "4ba2a36678b0d2d05557954cb94aaec82d905f1694695741a551b4b596f12ca5"`
Dec 13 21:28:12.745 INFO [stdout] 4ba2a36678b0d2d05557954cb94aaec82d905f1694695741a551b4b596f12ca5
Dec 13 21:28:12.748 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 21:28:12.955 INFO [stdout] 6e8a3e7989ad7e420c6599edda6a43d76d62027856f955b7d4acd4aa6415fffd
Dec 13 21:28:12.960 INFO running `"docker" "start" "-a" "6e8a3e7989ad7e420c6599edda6a43d76d62027856f955b7d4acd4aa6415fffd"`
Dec 13 21:28:13.416 INFO [stderr] usermod: no changes
Dec 13 21:28:13.455 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 13 21:28:13.464 INFO [stderr]      Running /target/debug/deps/rust_by_ex-ab94da1be81eea59
Dec 13 21:28:13.465 INFO [stdout] 
Dec 13 21:28:13.465 INFO [stdout] running 0 tests
Dec 13 21:28:13.465 INFO [stdout] 
Dec 13 21:28:13.465 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 21:28:13.465 INFO [stdout] 
Dec 13 21:28:13.467 INFO [stderr] su: No module specific data is present
Dec 13 21:28:13.864 INFO running `"docker" "inspect" "6e8a3e7989ad7e420c6599edda6a43d76d62027856f955b7d4acd4aa6415fffd"`
Dec 13 21:28:13.953 INFO running `"docker" "rm" "-f" "6e8a3e7989ad7e420c6599edda6a43d76d62027856f955b7d4acd4aa6415fffd"`
Dec 13 21:28:14.137 INFO [stdout] 6e8a3e7989ad7e420c6599edda6a43d76d62027856f955b7d4acd4aa6415fffd