Nov 09 16:38:37.213 INFO checking amitdash291/rust_lifetimes against master#653da4fd006c97625247acd7e076d0782cdc149b for pr-55632
Nov 09 16:38:37.215 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-0/master#653da4fd006c97625247acd7e076d0782cdc149b:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55632/master#653da4fd006c97625247acd7e076d0782cdc149b:/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 +653da4fd006c97625247acd7e076d0782cdc149b-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 09 16:38:37.787 INFO blam! 8d90a5429ef612b8c158a6fff53381a812b766f2f12cf2f8ac77ad722f1cad95
Nov 09 16:38:37.795 INFO running `"docker" "start" "-a" "8d90a5429ef612b8c158a6fff53381a812b766f2f12cf2f8ac77ad722f1cad95"`
Nov 09 16:38:39.375 INFO kablam! usermod: no changes
Nov 09 16:38:39.435 INFO kablam!     Checking lifetime_demo v0.1.0 (/source)
Nov 09 16:38:40.063 INFO kablam! warning: variable `result_ref` is assigned to, but never used
Nov 09 16:38:40.063 INFO kablam!  --> src/main.rs:4:9
Nov 09 16:38:40.063 INFO kablam!   |
Nov 09 16:38:40.063 INFO kablam! 4 |     let result_ref;
Nov 09 16:38:40.063 INFO kablam!   |         ^^^^^^^^^^
Nov 09 16:38:40.063 INFO kablam!   |
Nov 09 16:38:40.063 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 09 16:38:40.063 INFO kablam!   = note: consider using `_result_ref` instead
Nov 09 16:38:40.063 INFO kablam! 
Nov 09 16:38:40.063 INFO kablam! warning: value assigned to `result_ref` is never read
Nov 09 16:38:40.063 INFO kablam!  --> src/main.rs:6:5
Nov 09 16:38:40.063 INFO kablam!   |
Nov 09 16:38:40.063 INFO kablam! 6 |     result_ref = which_is_greater(&a, &b)
Nov 09 16:38:40.063 INFO kablam!   |     ^^^^^^^^^^
Nov 09 16:38:40.063 INFO kablam!   |
Nov 09 16:38:40.063 INFO kablam!   = note: #[warn(unused_assignments)] on by default
Nov 09 16:38:40.063 INFO kablam! 
Nov 09 16:38:40.063 INFO kablam! warning: unused variable: `a`
Nov 09 16:38:40.063 INFO kablam!   --> src/main.rs:25:29
Nov 09 16:38:40.063 INFO kablam!    |
Nov 09 16:38:40.063 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Nov 09 16:38:40.063 INFO kablam!    |                             ^ help: consider using `_a` instead
Nov 09 16:38:40.063 INFO kablam! 
Nov 09 16:38:40.063 INFO kablam! warning: unused variable: `b`
Nov 09 16:38:40.063 INFO kablam!   --> src/main.rs:25:41
Nov 09 16:38:40.063 INFO kablam!    |
Nov 09 16:38:40.063 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Nov 09 16:38:40.063 INFO kablam!    |                                         ^ help: consider using `_b` instead
Nov 09 16:38:40.063 INFO kablam! 
Nov 09 16:38:40.063 INFO kablam! warning: unused variable: `vec1`
Nov 09 16:38:40.063 INFO kablam!   --> src/main.rs:37:13
Nov 09 16:38:40.063 INFO kablam!    |
Nov 09 16:38:40.063 INFO kablam! 37 |     let mut vec1: Vec<i32> = Vec::new();
Nov 09 16:38:40.063 INFO kablam!    |             ^^^^ help: consider using `_vec1` instead
Nov 09 16:38:40.063 INFO kablam! 
Nov 09 16:38:40.073 INFO kablam! warning: variable does not need to be mutable
Nov 09 16:38:40.073 INFO kablam!   --> src/main.rs:37:9
Nov 09 16:38:40.073 INFO kablam!    |
Nov 09 16:38:40.073 INFO kablam! 37 |     let mut vec1: Vec<i32> = Vec::new();
Nov 09 16:38:40.073 INFO kablam!    |         ----^^^^
Nov 09 16:38:40.073 INFO kablam!    |         |
Nov 09 16:38:40.073 INFO kablam!    |         help: remove this `mut`
Nov 09 16:38:40.073 INFO kablam!    |
Nov 09 16:38:40.073 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 16:38:40.073 INFO kablam! 
Nov 09 16:38:40.073 INFO kablam! warning: function is never used: `test_mut_ref`
Nov 09 16:38:40.073 INFO kablam!   --> src/main.rs:34:1
Nov 09 16:38:40.073 INFO kablam!    |
Nov 09 16:38:40.073 INFO kablam! 34 | fn test_mut_ref() {
Nov 09 16:38:40.073 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Nov 09 16:38:40.073 INFO kablam!    |
Nov 09 16:38:40.073 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 09 16:38:40.073 INFO kablam! 
Nov 09 16:38:40.073 INFO kablam! warning: function is never used: `copy_vec`
Nov 09 16:38:40.073 INFO kablam!   --> src/main.rs:40:1
Nov 09 16:38:40.073 INFO kablam!    |
Nov 09 16:38:40.073 INFO kablam! 40 | fn copy_vec(from: &Vec<i32>, to: &mut Vec<i32>) {
Nov 09 16:38:40.073 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 16:38:40.073 INFO kablam! 
Nov 09 16:38:40.098 INFO kablam! warning: variable `result_ref` is assigned to, but never used
Nov 09 16:38:40.098 INFO kablam!  --> src/main.rs:4:9
Nov 09 16:38:40.098 INFO kablam!   |
Nov 09 16:38:40.098 INFO kablam! 4 |     let result_ref;
Nov 09 16:38:40.098 INFO kablam!   |         ^^^^^^^^^^
Nov 09 16:38:40.098 INFO kablam!   |
Nov 09 16:38:40.098 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 09 16:38:40.098 INFO kablam!   = note: consider using `_result_ref` instead
Nov 09 16:38:40.098 INFO kablam! 
Nov 09 16:38:40.098 INFO kablam! warning: value assigned to `result_ref` is never read
Nov 09 16:38:40.098 INFO kablam!  --> src/main.rs:6:5
Nov 09 16:38:40.098 INFO kablam!   |
Nov 09 16:38:40.098 INFO kablam! 6 |     result_ref = which_is_greater(&a, &b)
Nov 09 16:38:40.098 INFO kablam!   |     ^^^^^^^^^^
Nov 09 16:38:40.098 INFO kablam!   |
Nov 09 16:38:40.098 INFO kablam!   = note: #[warn(unused_assignments)] on by default
Nov 09 16:38:40.098 INFO kablam! 
Nov 09 16:38:40.098 INFO kablam! warning: unused variable: `a`
Nov 09 16:38:40.098 INFO kablam!   --> src/main.rs:25:29
Nov 09 16:38:40.098 INFO kablam!    |
Nov 09 16:38:40.099 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Nov 09 16:38:40.099 INFO kablam!    |                             ^ help: consider using `_a` instead
Nov 09 16:38:40.099 INFO kablam! 
Nov 09 16:38:40.099 INFO kablam! warning: unused variable: `b`
Nov 09 16:38:40.099 INFO kablam!   --> src/main.rs:25:41
Nov 09 16:38:40.099 INFO kablam!    |
Nov 09 16:38:40.099 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Nov 09 16:38:40.099 INFO kablam!    |                                         ^ help: consider using `_b` instead
Nov 09 16:38:40.099 INFO kablam! 
Nov 09 16:38:40.099 INFO kablam! warning: unused variable: `vec1`
Nov 09 16:38:40.099 INFO kablam!   --> src/main.rs:37:13
Nov 09 16:38:40.099 INFO kablam!    |
Nov 09 16:38:40.099 INFO kablam! 37 |     let mut vec1: Vec<i32> = Vec::new();
Nov 09 16:38:40.099 INFO kablam!    |             ^^^^ help: consider using `_vec1` instead
Nov 09 16:38:40.099 INFO kablam! 
Nov 09 16:38:40.102 INFO kablam! warning: variable does not need to be mutable
Nov 09 16:38:40.102 INFO kablam!   --> src/main.rs:37:9
Nov 09 16:38:40.102 INFO kablam!    |
Nov 09 16:38:40.102 INFO kablam! 37 |     let mut vec1: Vec<i32> = Vec::new();
Nov 09 16:38:40.102 INFO kablam!    |         ----^^^^
Nov 09 16:38:40.102 INFO kablam!    |         |
Nov 09 16:38:40.102 INFO kablam!    |         help: remove this `mut`
Nov 09 16:38:40.102 INFO kablam!    |
Nov 09 16:38:40.102 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 16:38:40.102 INFO kablam! 
Nov 09 16:38:40.102 INFO kablam! warning: function is never used: `test_mut_ref`
Nov 09 16:38:40.102 INFO kablam!   --> src/main.rs:34:1
Nov 09 16:38:40.102 INFO kablam!    |
Nov 09 16:38:40.102 INFO kablam! 34 | fn test_mut_ref() {
Nov 09 16:38:40.102 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Nov 09 16:38:40.102 INFO kablam!    |
Nov 09 16:38:40.102 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 09 16:38:40.102 INFO kablam! 
Nov 09 16:38:40.102 INFO kablam! warning: function is never used: `copy_vec`
Nov 09 16:38:40.102 INFO kablam!   --> src/main.rs:40:1
Nov 09 16:38:40.102 INFO kablam!    |
Nov 09 16:38:40.102 INFO kablam! 40 | fn copy_vec(from: &Vec<i32>, to: &mut Vec<i32>) {
Nov 09 16:38:40.102 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 16:38:40.102 INFO kablam! 
Nov 09 16:38:40.112 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Nov 09 16:38:40.127 INFO kablam! su: No module specific data is present
Nov 09 16:38:41.205 INFO running `"docker" "rm" "-f" "8d90a5429ef612b8c158a6fff53381a812b766f2f12cf2f8ac77ad722f1cad95"`
Nov 09 16:38:41.587 INFO blam! 8d90a5429ef612b8c158a6fff53381a812b766f2f12cf2f8ac77ad722f1cad95