Nov 04 10:28:22.605 INFO checking amitdash291/rust_lifetimes against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 10:28:22.607 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-6/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/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 +e740b9aa0b624fa39feb39613e76d15bdf57e594-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 04 10:28:23.201 INFO blam! 8b5b3598c6aa8f117cecff9807193394476c5270cb0a0bb601919b88d24fa7f1
Nov 04 10:28:23.204 INFO running `"docker" "start" "-a" "8b5b3598c6aa8f117cecff9807193394476c5270cb0a0bb601919b88d24fa7f1"`
Nov 04 10:28:24.563 INFO kablam! usermod: no changes
Nov 04 10:28:24.647 INFO kablam!     Checking lifetime_demo v0.1.0 (/source)
Nov 04 10:28:25.399 INFO kablam! warning: variable `result_ref` is assigned to, but never used
Nov 04 10:28:25.399 INFO kablam!  --> src/main.rs:4:9
Nov 04 10:28:25.400 INFO kablam!   |
Nov 04 10:28:25.400 INFO kablam! 4 |     let result_ref;
Nov 04 10:28:25.400 INFO kablam!   |         ^^^^^^^^^^
Nov 04 10:28:25.401 INFO kablam!   |
Nov 04 10:28:25.401 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 04 10:28:25.401 INFO kablam!   = note: consider using `_result_ref` instead
Nov 04 10:28:25.402 INFO kablam! 
Nov 04 10:28:25.402 INFO kablam! warning: value assigned to `result_ref` is never read
Nov 04 10:28:25.402 INFO kablam!  --> src/main.rs:6:5
Nov 04 10:28:25.403 INFO kablam!   |
Nov 04 10:28:25.403 INFO kablam! 6 |     result_ref = which_is_greater(&a, &b)
Nov 04 10:28:25.403 INFO kablam!   |     ^^^^^^^^^^
Nov 04 10:28:25.403 INFO kablam!   |
Nov 04 10:28:25.404 INFO kablam!   = note: #[warn(unused_assignments)] on by default
Nov 04 10:28:25.404 INFO kablam! 
Nov 04 10:28:25.404 INFO kablam! warning: unused variable: `a`
Nov 04 10:28:25.405 INFO kablam!   --> src/main.rs:25:29
Nov 04 10:28:25.405 INFO kablam!    |
Nov 04 10:28:25.405 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Nov 04 10:28:25.405 INFO kablam!    |                             ^ help: consider using `_a` instead
Nov 04 10:28:25.406 INFO kablam! 
Nov 04 10:28:25.406 INFO kablam! warning: unused variable: `b`
Nov 04 10:28:25.406 INFO kablam!   --> src/main.rs:25:41
Nov 04 10:28:25.407 INFO kablam!    |
Nov 04 10:28:25.407 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Nov 04 10:28:25.407 INFO kablam!    |                                         ^ help: consider using `_b` instead
Nov 04 10:28:25.408 INFO kablam! 
Nov 04 10:28:25.408 INFO kablam! warning: unused variable: `vec1`
Nov 04 10:28:25.408 INFO kablam!   --> src/main.rs:37:13
Nov 04 10:28:25.409 INFO kablam!    |
Nov 04 10:28:25.409 INFO kablam! 37 |     let mut vec1: Vec<i32> = Vec::new();
Nov 04 10:28:25.409 INFO kablam!    |             ^^^^ help: consider using `_vec1` instead
Nov 04 10:28:25.409 INFO kablam! 
Nov 04 10:28:25.410 INFO kablam! warning: variable does not need to be mutable
Nov 04 10:28:25.410 INFO kablam!   --> src/main.rs:37:9
Nov 04 10:28:25.410 INFO kablam!    |
Nov 04 10:28:25.411 INFO kablam! 37 |     let mut vec1: Vec<i32> = Vec::new();
Nov 04 10:28:25.411 INFO kablam!    |         ----^^^^
Nov 04 10:28:25.411 INFO kablam!    |         |
Nov 04 10:28:25.412 INFO kablam!    |         help: remove this `mut`
Nov 04 10:28:25.412 INFO kablam!    |
Nov 04 10:28:25.412 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 04 10:28:25.413 INFO kablam! 
Nov 04 10:28:25.413 INFO kablam! warning: function is never used: `test_mut_ref`
Nov 04 10:28:25.413 INFO kablam!   --> src/main.rs:34:1
Nov 04 10:28:25.414 INFO kablam!    |
Nov 04 10:28:25.414 INFO kablam! 34 | fn test_mut_ref() {
Nov 04 10:28:25.414 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Nov 04 10:28:25.414 INFO kablam!    |
Nov 04 10:28:25.415 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 04 10:28:25.415 INFO kablam! 
Nov 04 10:28:25.415 INFO kablam! warning: function is never used: `copy_vec`
Nov 04 10:28:25.416 INFO kablam!   --> src/main.rs:40:1
Nov 04 10:28:25.416 INFO kablam!    |
Nov 04 10:28:25.416 INFO kablam! 40 | fn copy_vec(from: &Vec<i32>, to: &mut Vec<i32>) {
Nov 04 10:28:25.417 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 10:28:25.417 INFO kablam! 
Nov 04 10:28:25.439 INFO kablam! warning: variable `result_ref` is assigned to, but never used
Nov 04 10:28:25.439 INFO kablam!  --> src/main.rs:4:9
Nov 04 10:28:25.440 INFO kablam!   |
Nov 04 10:28:25.440 INFO kablam! 4 |     let result_ref;
Nov 04 10:28:25.440 INFO kablam!   |         ^^^^^^^^^^
Nov 04 10:28:25.440 INFO kablam!   |
Nov 04 10:28:25.441 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 04 10:28:25.441 INFO kablam!   = note: consider using `_result_ref` instead
Nov 04 10:28:25.441 INFO kablam! 
Nov 04 10:28:25.442 INFO kablam! warning: value assigned to `result_ref` is never read
Nov 04 10:28:25.442 INFO kablam!  --> src/main.rs:6:5
Nov 04 10:28:25.442 INFO kablam!   |
Nov 04 10:28:25.442 INFO kablam! 6 |     result_ref = which_is_greater(&a, &b)
Nov 04 10:28:25.443 INFO kablam!   |     ^^^^^^^^^^
Nov 04 10:28:25.443 INFO kablam!   |
Nov 04 10:28:25.443 INFO kablam!   = note: #[warn(unused_assignments)] on by default
Nov 04 10:28:25.444 INFO kablam! 
Nov 04 10:28:25.444 INFO kablam! warning: unused variable: `a`
Nov 04 10:28:25.444 INFO kablam!   --> src/main.rs:25:29
Nov 04 10:28:25.444 INFO kablam!    |
Nov 04 10:28:25.445 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Nov 04 10:28:25.445 INFO kablam!    |                             ^ help: consider using `_a` instead
Nov 04 10:28:25.445 INFO kablam! 
Nov 04 10:28:25.445 INFO kablam! warning: unused variable: `b`
Nov 04 10:28:25.446 INFO kablam!   --> src/main.rs:25:41
Nov 04 10:28:25.446 INFO kablam!    |
Nov 04 10:28:25.446 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Nov 04 10:28:25.447 INFO kablam!    |                                         ^ help: consider using `_b` instead
Nov 04 10:28:25.447 INFO kablam! 
Nov 04 10:28:25.447 INFO kablam! warning: unused variable: `vec1`
Nov 04 10:28:25.448 INFO kablam!   --> src/main.rs:37:13
Nov 04 10:28:25.448 INFO kablam!    |
Nov 04 10:28:25.448 INFO kablam! 37 |     let mut vec1: Vec<i32> = Vec::new();
Nov 04 10:28:25.449 INFO kablam!    |             ^^^^ help: consider using `_vec1` instead
Nov 04 10:28:25.449 INFO kablam! 
Nov 04 10:28:25.449 INFO kablam! warning: variable does not need to be mutable
Nov 04 10:28:25.449 INFO kablam!   --> src/main.rs:37:9
Nov 04 10:28:25.450 INFO kablam!    |
Nov 04 10:28:25.450 INFO kablam! 37 |     let mut vec1: Vec<i32> = Vec::new();
Nov 04 10:28:25.450 INFO kablam!    |         ----^^^^
Nov 04 10:28:25.451 INFO kablam!    |         |
Nov 04 10:28:25.451 INFO kablam!    |         help: remove this `mut`
Nov 04 10:28:25.451 INFO kablam!    |
Nov 04 10:28:25.452 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 04 10:28:25.452 INFO kablam! 
Nov 04 10:28:25.452 INFO kablam! warning: function is never used: `test_mut_ref`
Nov 04 10:28:25.453 INFO kablam!   --> src/main.rs:34:1
Nov 04 10:28:25.453 INFO kablam!    |
Nov 04 10:28:25.453 INFO kablam! 34 | fn test_mut_ref() {
Nov 04 10:28:25.454 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Nov 04 10:28:25.454 INFO kablam!    |
Nov 04 10:28:25.454 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 04 10:28:25.458 INFO kablam! 
Nov 04 10:28:25.459 INFO kablam! warning: function is never used: `copy_vec`
Nov 04 10:28:25.459 INFO kablam!   --> src/main.rs:40:1
Nov 04 10:28:25.459 INFO kablam!    |
Nov 04 10:28:25.459 INFO kablam! 40 | fn copy_vec(from: &Vec<i32>, to: &mut Vec<i32>) {
Nov 04 10:28:25.460 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 10:28:25.460 INFO kablam! 
Nov 04 10:28:25.465 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Nov 04 10:28:25.471 INFO kablam! su: No module specific data is present
Nov 04 10:28:26.159 INFO running `"docker" "rm" "-f" "8b5b3598c6aa8f117cecff9807193394476c5270cb0a0bb601919b88d24fa7f1"`
Nov 04 10:28:26.532 INFO blam! 8b5b3598c6aa8f117cecff9807193394476c5270cb0a0bb601919b88d24fa7f1