Nov 07 02:21:26.502 INFO checking VitalyAnkh/learn_error_handling against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 02:21:26.502 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-7/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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"`
Nov 07 02:21:26.948 INFO blam! 49045a3f50a861790eef461cc9ed6c6fdfd3303c768efdb591bc2dcd377ddb6d
Nov 07 02:21:26.956 INFO running `"docker" "start" "-a" "49045a3f50a861790eef461cc9ed6c6fdfd3303c768efdb591bc2dcd377ddb6d"`
Nov 07 02:21:28.121 INFO kablam! usermod: no changes
Nov 07 02:21:28.197 INFO kablam!     Checking learn_error_handling v0.1.0 (/source)
Nov 07 02:21:29.079 INFO kablam! warning: unused imports: `Cons`, `Nil`
Nov 07 02:21:29.079 INFO kablam!  --> src/smart_pointer/rc.rs:7:18
Nov 07 02:21:29.079 INFO kablam!   |
Nov 07 02:21:29.079 INFO kablam! 7 | use self::List::{Cons,Nil};
Nov 07 02:21:29.079 INFO kablam!   |                  ^^^^ ^^^
Nov 07 02:21:29.079 INFO kablam!   |
Nov 07 02:21:29.079 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 07 02:21:29.079 INFO kablam! 
Nov 07 02:21:29.132 INFO kablam! warning: struct is never constructed: `Guess`
Nov 07 02:21:29.132 INFO kablam!  --> src/read/mod.rs:5:1
Nov 07 02:21:29.132 INFO kablam!   |
Nov 07 02:21:29.132 INFO kablam! 5 | struct Guess {
Nov 07 02:21:29.132 INFO kablam!   | ^^^^^^^^^^^^
Nov 07 02:21:29.132 INFO kablam!   |
Nov 07 02:21:29.132 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 07 02:21:29.132 INFO kablam! 
Nov 07 02:21:29.135 INFO kablam! warning: method is never used: `new`
Nov 07 02:21:29.135 INFO kablam!   --> src/read/mod.rs:10:5
Nov 07 02:21:29.135 INFO kablam!    |
Nov 07 02:21:29.135 INFO kablam! 10 |     fn new(value: u32) -> Guess {
Nov 07 02:21:29.135 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 02:21:29.135 INFO kablam! 
Nov 07 02:21:29.135 INFO kablam! warning: enum is never used: `List`
Nov 07 02:21:29.135 INFO kablam!  --> src/smart_pointer/rc.rs:1:1
Nov 07 02:21:29.135 INFO kablam!   |
Nov 07 02:21:29.135 INFO kablam! 1 | enum List{
Nov 07 02:21:29.135 INFO kablam!   | ^^^^^^^^^
Nov 07 02:21:29.135 INFO kablam! 
Nov 07 02:21:29.135 INFO kablam! warning: comparison is useless due to type limits
Nov 07 02:21:29.135 INFO kablam!   --> src/read/mod.rs:11:12
Nov 07 02:21:29.135 INFO kablam!    |
Nov 07 02:21:29.135 INFO kablam! 11 |         if value < 0 || value > 100 {
Nov 07 02:21:29.135 INFO kablam!    |            ^^^^^^^^^
Nov 07 02:21:29.135 INFO kablam!    |
Nov 07 02:21:29.135 INFO kablam!    = note: #[warn(unused_comparisons)] on by default
Nov 07 02:21:29.135 INFO kablam! 
Nov 07 02:21:29.448 INFO kablam! warning: unused variable: `b`
Nov 07 02:21:29.448 INFO kablam!   --> src/smart_pointer/rc.rs:12:9
Nov 07 02:21:29.448 INFO kablam!    |
Nov 07 02:21:29.448 INFO kablam! 12 |     let b = Cons(2,Rc::clone(&a));
Nov 07 02:21:29.448 INFO kablam!    |         ^ help: consider using `_b` instead
Nov 07 02:21:29.448 INFO kablam!    |
Nov 07 02:21:29.448 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 07 02:21:29.448 INFO kablam! 
Nov 07 02:21:29.448 INFO kablam! warning: unused variable: `y`
Nov 07 02:21:29.448 INFO kablam!  --> src/smart_pointer/ref_cell.rs:4:13
Nov 07 02:21:29.448 INFO kablam!   |
Nov 07 02:21:29.448 INFO kablam! 4 |     let mut y =&a;
Nov 07 02:21:29.448 INFO kablam!   |             ^ help: consider using `_y` instead
Nov 07 02:21:29.448 INFO kablam! 
Nov 07 02:21:29.472 INFO kablam! warning: variable does not need to be mutable
Nov 07 02:21:29.472 INFO kablam!  --> src/smart_pointer/ref_cell.rs:4:9
Nov 07 02:21:29.472 INFO kablam!   |
Nov 07 02:21:29.472 INFO kablam! 4 |     let mut y =&a;
Nov 07 02:21:29.472 INFO kablam!   |         ----^
Nov 07 02:21:29.472 INFO kablam!   |         |
Nov 07 02:21:29.472 INFO kablam!   |         help: remove this `mut`
Nov 07 02:21:29.508 INFO kablam!   |
Nov 07 02:21:29.508 INFO kablam!   = note: #[warn(unused_mut)] on by default
Nov 07 02:21:29.508 INFO kablam! 
Nov 07 02:21:29.508 INFO kablam! warning: field is never used: `value`
Nov 07 02:21:29.508 INFO kablam!  --> src/read/mod.rs:6:5
Nov 07 02:21:29.508 INFO kablam!   |
Nov 07 02:21:29.508 INFO kablam! 6 |     value: u32
Nov 07 02:21:29.508 INFO kablam!   |     ^^^^^^^^^^
Nov 07 02:21:29.508 INFO kablam!   |
Nov 07 02:21:29.508 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 07 02:21:29.508 INFO kablam! 
Nov 07 02:21:29.508 INFO kablam! warning: comparison is useless due to type limits
Nov 07 02:21:29.508 INFO kablam!   --> src/read/mod.rs:11:12
Nov 07 02:21:29.508 INFO kablam!    |
Nov 07 02:21:29.508 INFO kablam! 11 |         if value < 0 || value > 100 {
Nov 07 02:21:29.508 INFO kablam!    |            ^^^^^^^^^
Nov 07 02:21:29.508 INFO kablam!    |
Nov 07 02:21:29.508 INFO kablam!    = note: #[warn(unused_comparisons)] on by default
Nov 07 02:21:29.508 INFO kablam! 
Nov 07 02:21:30.478 INFO kablam! warning: unused variable: `y`
Nov 07 02:21:30.478 INFO kablam!   --> tests/integration_test.rs:11:9
Nov 07 02:21:30.478 INFO kablam!    |
Nov 07 02:21:30.479 INFO kablam! 11 |     let y =&a;
Nov 07 02:21:30.479 INFO kablam!    |         ^ help: consider using `_y` instead
Nov 07 02:21:30.479 INFO kablam!    |
Nov 07 02:21:30.479 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 07 02:21:30.480 INFO kablam! 
Nov 07 02:21:30.485 INFO kablam! warning: function is never used: `it_add_two`
Nov 07 02:21:30.485 INFO kablam!  --> tests/integration_test.rs:5:1
Nov 07 02:21:30.485 INFO kablam!   |
Nov 07 02:21:30.486 INFO kablam! 5 | fn it_add_two(){
Nov 07 02:21:30.486 INFO kablam!   | ^^^^^^^^^^^^^^^
Nov 07 02:21:30.486 INFO kablam!   |
Nov 07 02:21:30.486 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 07 02:21:30.487 INFO kablam! 
Nov 07 02:21:30.487 INFO kablam! warning: function is never used: `check_borrow_rules`
Nov 07 02:21:30.488 INFO kablam!  --> tests/integration_test.rs:9:1
Nov 07 02:21:30.488 INFO kablam!   |
Nov 07 02:21:30.488 INFO kablam! 9 | fn check_borrow_rules(){
Nov 07 02:21:30.488 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 02:21:30.489 INFO kablam! 
Nov 07 02:21:30.540 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
Nov 07 02:21:30.551 INFO kablam! su: No module specific data is present
Nov 07 02:21:31.280 INFO running `"docker" "rm" "-f" "49045a3f50a861790eef461cc9ed6c6fdfd3303c768efdb591bc2dcd377ddb6d"`
Nov 07 02:21:31.562 INFO blam! 49045a3f50a861790eef461cc9ed6c6fdfd3303c768efdb591bc2dcd377ddb6d