Dec 11 07:32:56.472 INFO checking tomasz-pankowski/rust-class-ps1 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 07:32:56.472 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-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 11 07:32:57.004 INFO [stdout] d205d27cdeeda2bfb98a2b3c6585d4945c1f195fe8d45b80350d6253774584c2
Dec 11 07:32:57.012 INFO running `"docker" "start" "-a" "d205d27cdeeda2bfb98a2b3c6585d4945c1f195fe8d45b80350d6253774584c2"`
Dec 11 07:32:58.648 INFO [stderr] usermod: no changes
Dec 11 07:32:58.719 INFO [stderr]     Checking ps1 v0.0.1 (/source)
Dec 11 07:32:59.245 INFO [stderr] warning: unused variable: `why`
Dec 11 07:32:59.245 INFO [stderr]   --> src/main.rs:57:32
Dec 11 07:32:59.245 INFO [stderr]    |
Dec 11 07:32:59.245 INFO [stderr] 57 |                                     Err(why) => panic!("couldn't open"),
Dec 11 07:32:59.245 INFO [stderr]    |                                         ^^^ help: consider using `_why` instead
Dec 11 07:32:59.245 INFO [stderr]    |
Dec 11 07:32:59.245 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 07:32:59.245 INFO [stderr] 
Dec 11 07:32:59.245 INFO [stderr] warning: unused variable: `why`
Dec 11 07:32:59.245 INFO [stderr]   --> src/main.rs:62:13
Dec 11 07:32:59.245 INFO [stderr]    |
Dec 11 07:32:59.245 INFO [stderr] 62 |                                 Err(why) => panic!("couldn't read "),
Dec 11 07:32:59.245 INFO [stderr]    |                                     ^^^ help: consider using `_why` instead
Dec 11 07:32:59.245 INFO [stderr] 
Dec 11 07:32:59.245 INFO [stderr] warning: variable `response_default` is assigned to, but never used
Dec 11 07:32:59.245 INFO [stderr]   --> src/main.rs:72:10
Dec 11 07:32:59.245 INFO [stderr]    |
Dec 11 07:32:59.245 INFO [stderr] 72 |                     let response_default;
Dec 11 07:32:59.245 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^
Dec 11 07:32:59.245 INFO [stderr]    |
Dec 11 07:32:59.245 INFO [stderr]    = note: consider using `_response_default` instead
Dec 11 07:32:59.245 INFO [stderr] 
Dec 11 07:32:59.245 INFO [stderr] warning: value assigned to `response_default` is never read
Dec 11 07:32:59.245 INFO [stderr]   --> src/main.rs:74:7
Dec 11 07:32:59.245 INFO [stderr]    |
Dec 11 07:32:59.245 INFO [stderr] 74 |                         response_default =format!(
Dec 11 07:32:59.245 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^
Dec 11 07:32:59.245 INFO [stderr]    |
Dec 11 07:32:59.245 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 07:32:59.245 INFO [stderr] 
Dec 11 07:32:59.272 INFO [stderr] warning: unused variable: `why`
Dec 11 07:32:59.272 INFO [stderr]   --> src/main.rs:57:32
Dec 11 07:32:59.272 INFO [stderr]    |
Dec 11 07:32:59.272 INFO [stderr] 57 |                                     Err(why) => panic!("couldn't open"),
Dec 11 07:32:59.272 INFO [stderr]    |                                         ^^^ help: consider using `_why` instead
Dec 11 07:32:59.272 INFO [stderr]    |
Dec 11 07:32:59.272 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 07:32:59.272 INFO [stderr] 
Dec 11 07:32:59.272 INFO [stderr] warning: unused variable: `why`
Dec 11 07:32:59.272 INFO [stderr]   --> src/main.rs:62:13
Dec 11 07:32:59.272 INFO [stderr]    |
Dec 11 07:32:59.272 INFO [stderr] 62 |                                 Err(why) => panic!("couldn't read "),
Dec 11 07:32:59.272 INFO [stderr]    |                                     ^^^ help: consider using `_why` instead
Dec 11 07:32:59.272 INFO [stderr] 
Dec 11 07:32:59.272 INFO [stderr] warning: variable `response_default` is assigned to, but never used
Dec 11 07:32:59.272 INFO [stderr]   --> src/main.rs:72:10
Dec 11 07:32:59.272 INFO [stderr]    |
Dec 11 07:32:59.272 INFO [stderr] 72 |                     let response_default;
Dec 11 07:32:59.273 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^
Dec 11 07:32:59.273 INFO [stderr]    |
Dec 11 07:32:59.273 INFO [stderr]    = note: consider using `_response_default` instead
Dec 11 07:32:59.273 INFO [stderr] 
Dec 11 07:32:59.273 INFO [stderr] warning: value assigned to `response_default` is never read
Dec 11 07:32:59.273 INFO [stderr]   --> src/main.rs:74:7
Dec 11 07:32:59.273 INFO [stderr]    |
Dec 11 07:32:59.273 INFO [stderr] 74 |                         response_default =format!(
Dec 11 07:32:59.273 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^
Dec 11 07:32:59.273 INFO [stderr]    |
Dec 11 07:32:59.273 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 07:32:59.273 INFO [stderr] 
Dec 11 07:32:59.286 INFO [stderr] warning: static variable `counter` should have an upper case name such as `COUNTER`
Dec 11 07:32:59.286 INFO [stderr]   --> src/main.rs:29:5
Dec 11 07:32:59.286 INFO [stderr]    |
Dec 11 07:32:59.286 INFO [stderr] 29 |     static mut counter: i32 = 0;
Dec 11 07:32:59.286 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:32:59.286 INFO [stderr]    |
Dec 11 07:32:59.286 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 11 07:32:59.286 INFO [stderr] 
Dec 11 07:32:59.352 INFO [stderr] warning: static variable `counter` should have an upper case name such as `COUNTER`
Dec 11 07:32:59.352 INFO [stderr]   --> src/main.rs:29:5
Dec 11 07:32:59.352 INFO [stderr]    |
Dec 11 07:32:59.352 INFO [stderr] 29 |     static mut counter: i32 = 0;
Dec 11 07:32:59.352 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:32:59.352 INFO [stderr]    |
Dec 11 07:32:59.352 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 11 07:32:59.352 INFO [stderr] 
Dec 11 07:32:59.392 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
Dec 11 07:32:59.396 INFO [stderr] su: No module specific data is present
Dec 11 07:33:00.156 INFO running `"docker" "inspect" "d205d27cdeeda2bfb98a2b3c6585d4945c1f195fe8d45b80350d6253774584c2"`
Dec 11 07:33:00.512 INFO running `"docker" "rm" "-f" "d205d27cdeeda2bfb98a2b3c6585d4945c1f195fe8d45b80350d6253774584c2"`
Dec 11 07:33:00.905 INFO [stdout] d205d27cdeeda2bfb98a2b3c6585d4945c1f195fe8d45b80350d6253774584c2