Dec 06 01:42:30.085 INFO testing dgoetsch/glutton against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 01:42:30.085 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 01:42:30.258 INFO [stdout] 68c1e4bffee93e27e35feec4a185f87ab954141635c299d21cbb4f2efce3176e
Dec 06 01:42:30.265 INFO running `"docker" "start" "-a" "68c1e4bffee93e27e35feec4a185f87ab954141635c299d21cbb4f2efce3176e"`
Dec 06 01:42:30.632 INFO [stderr] usermod: no changes
Dec 06 01:42:30.676 INFO [stderr]    Compiling rust-by-ex v0.1.0 (/source)
Dec 06 01:42:31.048 INFO [stderr] warning: unused import: `std::iter::Map`
Dec 06 01:42:31.048 INFO [stderr]  --> src/main.rs:6:5
Dec 06 01:42:31.048 INFO [stderr]   |
Dec 06 01:42:31.048 INFO [stderr] 6 | use std::iter::Map;
Dec 06 01:42:31.048 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 06 01:42:31.048 INFO [stderr]   |
Dec 06 01:42:31.048 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 01:42:31.048 INFO [stderr] 
Dec 06 01:42:31.048 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 01:42:31.048 INFO [stderr]   --> src/main.rs:18:21
Dec 06 01:42:31.048 INFO [stderr]    |
Dec 06 01:42:31.048 INFO [stderr] 18 |         for idx in  (0..self.at_a_time) {
Dec 06 01:42:31.048 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 06 01:42:31.048 INFO [stderr]    |
Dec 06 01:42:31.048 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 06 01:42:31.048 INFO [stderr] 
Dec 06 01:42:31.072 INFO [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead
Dec 06 01:42:31.072 INFO [stderr]   --> src/main.rs:32:33
Dec 06 01:42:31.072 INFO [stderr]    |
Dec 06 01:42:31.072 INFO [stderr] 32 |         let name = thread_rng().gen_ascii_chars().take(10) .collect::<String>();
Dec 06 01:42:31.072 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^
Dec 06 01:42:31.072 INFO [stderr]    |
Dec 06 01:42:31.072 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 06 01:42:31.072 INFO [stderr] 
Dec 06 01:42:31.090 INFO [stderr] warning: unused variable: `idx`
Dec 06 01:42:31.090 INFO [stderr]   --> src/main.rs:18:13
Dec 06 01:42:31.090 INFO [stderr]    |
Dec 06 01:42:31.090 INFO [stderr] 18 |         for idx in  (0..self.at_a_time) {
Dec 06 01:42:31.090 INFO [stderr]    |             ^^^ help: consider using `_idx` instead
Dec 06 01:42:31.090 INFO [stderr]    |
Dec 06 01:42:31.090 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 06 01:42:31.091 INFO [stderr] 
Dec 06 01:42:31.091 INFO [stderr] warning: unused variable: `cd_res`
Dec 06 01:42:31.091 INFO [stderr]   --> src/main.rs:38:13
Dec 06 01:42:31.091 INFO [stderr]    |
Dec 06 01:42:31.091 INFO [stderr] 38 |         let cd_res = std::fs::create_dir_all(sub_dir.as_str());
Dec 06 01:42:31.091 INFO [stderr]    |             ^^^^^^ help: consider using `_cd_res` instead
Dec 06 01:42:31.091 INFO [stderr] 
Dec 06 01:42:31.091 INFO [stderr] warning: unused variable: `cf_res`
Dec 06 01:42:31.091 INFO [stderr]   --> src/main.rs:46:13
Dec 06 01:42:31.091 INFO [stderr]    |
Dec 06 01:42:31.091 INFO [stderr] 46 |         let cf_res = std::fs::File::create(file_name.as_str())
Dec 06 01:42:31.091 INFO [stderr]    |             ^^^^^^ help: consider using `_cf_res` instead
Dec 06 01:42:31.091 INFO [stderr] 
Dec 06 01:42:31.099 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 01:42:31.099 INFO [stderr]   --> src/main.rs:23:13
Dec 06 01:42:31.099 INFO [stderr]    |
Dec 06 01:42:31.099 INFO [stderr] 23 |             handler.join();
Dec 06 01:42:31.099 INFO [stderr]    |             ^^^^^^^^^^^^^^^
Dec 06 01:42:31.099 INFO [stderr]    |
Dec 06 01:42:31.099 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 01:42:31.099 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 01:42:31.099 INFO [stderr] 
Dec 06 01:42:31.534 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Dec 06 01:42:31.538 INFO [stderr] su: No module specific data is present
Dec 06 01:42:32.286 INFO running `"docker" "inspect" "68c1e4bffee93e27e35feec4a185f87ab954141635c299d21cbb4f2efce3176e"`
Dec 06 01:42:32.518 INFO running `"docker" "rm" "-f" "68c1e4bffee93e27e35feec4a185f87ab954141635c299d21cbb4f2efce3176e"`
Dec 06 01:42:32.776 INFO [stdout] 68c1e4bffee93e27e35feec4a185f87ab954141635c299d21cbb4f2efce3176e
Dec 06 01:42:32.782 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 01:42:33.285 INFO [stdout] 8c944d4ab191e5c821a4a1ad862d942ee5a572e089e1d518864ae9ffeff1d0e8
Dec 06 01:42:33.289 INFO running `"docker" "start" "-a" "8c944d4ab191e5c821a4a1ad862d942ee5a572e089e1d518864ae9ffeff1d0e8"`
Dec 06 01:42:34.165 INFO [stderr] usermod: no changes
Dec 06 01:42:34.213 INFO [stderr]    Compiling rust-by-ex v0.1.0 (/source)
Dec 06 01:42:34.566 INFO [stderr] warning: unused import: `std::iter::Map`
Dec 06 01:42:34.566 INFO [stderr]  --> src/main.rs:6:5
Dec 06 01:42:34.566 INFO [stderr]   |
Dec 06 01:42:34.566 INFO [stderr] 6 | use std::iter::Map;
Dec 06 01:42:34.566 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 06 01:42:34.566 INFO [stderr]   |
Dec 06 01:42:34.566 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 01:42:34.566 INFO [stderr] 
Dec 06 01:42:34.566 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 06 01:42:34.566 INFO [stderr]   --> src/main.rs:18:21
Dec 06 01:42:34.566 INFO [stderr]    |
Dec 06 01:42:34.566 INFO [stderr] 18 |         for idx in  (0..self.at_a_time) {
Dec 06 01:42:34.566 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 06 01:42:34.566 INFO [stderr]    |
Dec 06 01:42:34.566 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 06 01:42:34.566 INFO [stderr] 
Dec 06 01:42:34.591 INFO [stderr] warning: use of deprecated item 'rand::Rng::gen_ascii_chars': use sample_iter(&Alphanumeric) instead
Dec 06 01:42:34.591 INFO [stderr]   --> src/main.rs:32:33
Dec 06 01:42:34.591 INFO [stderr]    |
Dec 06 01:42:34.591 INFO [stderr] 32 |         let name = thread_rng().gen_ascii_chars().take(10) .collect::<String>();
Dec 06 01:42:34.591 INFO [stderr]    |                                 ^^^^^^^^^^^^^^^
Dec 06 01:42:34.591 INFO [stderr]    |
Dec 06 01:42:34.591 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 06 01:42:34.592 INFO [stderr] 
Dec 06 01:42:34.615 INFO [stderr] warning: unused variable: `idx`
Dec 06 01:42:34.615 INFO [stderr]   --> src/main.rs:18:13
Dec 06 01:42:34.615 INFO [stderr]    |
Dec 06 01:42:34.615 INFO [stderr] 18 |         for idx in  (0..self.at_a_time) {
Dec 06 01:42:34.615 INFO [stderr]    |             ^^^ help: consider using `_idx` instead
Dec 06 01:42:34.615 INFO [stderr]    |
Dec 06 01:42:34.615 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 06 01:42:34.615 INFO [stderr] 
Dec 06 01:42:34.615 INFO [stderr] warning: unused variable: `cd_res`
Dec 06 01:42:34.615 INFO [stderr]   --> src/main.rs:38:13
Dec 06 01:42:34.615 INFO [stderr]    |
Dec 06 01:42:34.615 INFO [stderr] 38 |         let cd_res = std::fs::create_dir_all(sub_dir.as_str());
Dec 06 01:42:34.615 INFO [stderr]    |             ^^^^^^ help: consider using `_cd_res` instead
Dec 06 01:42:34.615 INFO [stderr] 
Dec 06 01:42:34.615 INFO [stderr] warning: unused variable: `cf_res`
Dec 06 01:42:34.615 INFO [stderr]   --> src/main.rs:46:13
Dec 06 01:42:34.615 INFO [stderr]    |
Dec 06 01:42:34.615 INFO [stderr] 46 |         let cf_res = std::fs::File::create(file_name.as_str())
Dec 06 01:42:34.615 INFO [stderr]    |             ^^^^^^ help: consider using `_cf_res` instead
Dec 06 01:42:34.615 INFO [stderr] 
Dec 06 01:42:34.629 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 01:42:34.629 INFO [stderr]   --> src/main.rs:23:13
Dec 06 01:42:34.629 INFO [stderr]    |
Dec 06 01:42:34.629 INFO [stderr] 23 |             handler.join();
Dec 06 01:42:34.629 INFO [stderr]    |             ^^^^^^^^^^^^^^^
Dec 06 01:42:34.629 INFO [stderr]    |
Dec 06 01:42:34.629 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 01:42:34.629 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 01:42:34.629 INFO [stderr] 
Dec 06 01:42:34.812 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Dec 06 01:42:34.813 INFO [stderr] su: No module specific data is present
Dec 06 01:42:35.119 INFO running `"docker" "inspect" "8c944d4ab191e5c821a4a1ad862d942ee5a572e089e1d518864ae9ffeff1d0e8"`
Dec 06 01:42:35.246 INFO running `"docker" "rm" "-f" "8c944d4ab191e5c821a4a1ad862d942ee5a572e089e1d518864ae9ffeff1d0e8"`
Dec 06 01:42:35.429 INFO [stdout] 8c944d4ab191e5c821a4a1ad862d942ee5a572e089e1d518864ae9ffeff1d0e8
Dec 06 01:42:35.431 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 01:42:35.678 INFO [stdout] 4193aeda31e782c89235bee10491b8a3d9a0b730bb5ddfbbe6cdad4968d5bcf4
Dec 06 01:42:35.682 INFO running `"docker" "start" "-a" "4193aeda31e782c89235bee10491b8a3d9a0b730bb5ddfbbe6cdad4968d5bcf4"`
Dec 06 01:42:36.137 INFO [stderr] usermod: no changes
Dec 06 01:42:36.167 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 06 01:42:36.168 INFO [stderr]      Running /target/debug/deps/rust_by_ex-ea6da059e70d1814
Dec 06 01:42:36.169 INFO [stdout] 
Dec 06 01:42:36.170 INFO [stdout] running 0 tests
Dec 06 01:42:36.170 INFO [stdout] 
Dec 06 01:42:36.170 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 01:42:36.170 INFO [stdout] 
Dec 06 01:42:36.171 INFO [stderr] su: No module specific data is present
Dec 06 01:42:36.372 INFO running `"docker" "inspect" "4193aeda31e782c89235bee10491b8a3d9a0b730bb5ddfbbe6cdad4968d5bcf4"`
Dec 06 01:42:36.477 INFO running `"docker" "rm" "-f" "4193aeda31e782c89235bee10491b8a3d9a0b730bb5ddfbbe6cdad4968d5bcf4"`
Dec 06 01:42:36.557 INFO [stdout] 4193aeda31e782c89235bee10491b8a3d9a0b730bb5ddfbbe6cdad4968d5bcf4