Oct 27 08:25:27.102 INFO checking amitdash291/rust_lifetimes against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2 Oct 27 08:25:27.104 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-0/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-55192-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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"` Oct 27 08:25:27.499 INFO blam! f7f7d4b81f6bed196c71457bafc5c2d5b8798d85be1ca96ba23df9690bed6635 Oct 27 08:25:27.502 INFO running `"docker" "start" "-a" "f7f7d4b81f6bed196c71457bafc5c2d5b8798d85be1ca96ba23df9690bed6635"` Oct 27 08:25:29.555 INFO kablam! usermod: no changes Oct 27 08:25:29.603 INFO kablam! Checking lifetime_demo v0.1.0 (/source) Oct 27 08:25:30.167 INFO kablam! warning: variable `result_ref` is assigned to, but never used Oct 27 08:25:30.168 INFO kablam! --> src/main.rs:4:9 Oct 27 08:25:30.168 INFO kablam! | Oct 27 08:25:30.168 INFO kablam! 4 | let result_ref; Oct 27 08:25:30.168 INFO kablam! | ^^^^^^^^^^ Oct 27 08:25:30.169 INFO kablam! | Oct 27 08:25:30.169 INFO kablam! = note: #[warn(unused_variables)] on by default Oct 27 08:25:30.169 INFO kablam! = note: consider using `_result_ref` instead Oct 27 08:25:30.170 INFO kablam! Oct 27 08:25:30.170 INFO kablam! warning: value assigned to `result_ref` is never read Oct 27 08:25:30.170 INFO kablam! --> src/main.rs:6:5 Oct 27 08:25:30.171 INFO kablam! | Oct 27 08:25:30.171 INFO kablam! 6 | result_ref = which_is_greater(&a, &b) Oct 27 08:25:30.171 INFO kablam! | ^^^^^^^^^^ Oct 27 08:25:30.171 INFO kablam! | Oct 27 08:25:30.172 INFO kablam! = note: #[warn(unused_assignments)] on by default Oct 27 08:25:30.172 INFO kablam! Oct 27 08:25:30.172 INFO kablam! warning: unused variable: `a` Oct 27 08:25:30.172 INFO kablam! --> src/main.rs:25:29 Oct 27 08:25:30.173 INFO kablam! | Oct 27 08:25:30.173 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 { Oct 27 08:25:30.173 INFO kablam! | ^ help: consider using `_a` instead Oct 27 08:25:30.173 INFO kablam! Oct 27 08:25:30.174 INFO kablam! warning: unused variable: `b` Oct 27 08:25:30.174 INFO kablam! --> src/main.rs:25:41 Oct 27 08:25:30.174 INFO kablam! | Oct 27 08:25:30.174 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 { Oct 27 08:25:30.175 INFO kablam! | ^ help: consider using `_b` instead Oct 27 08:25:30.175 INFO kablam! Oct 27 08:25:30.175 INFO kablam! warning: unused variable: `vec1` Oct 27 08:25:30.176 INFO kablam! --> src/main.rs:37:13 Oct 27 08:25:30.176 INFO kablam! | Oct 27 08:25:30.176 INFO kablam! 37 | let mut vec1: Vec = Vec::new(); Oct 27 08:25:30.176 INFO kablam! | ^^^^ help: consider using `_vec1` instead Oct 27 08:25:30.177 INFO kablam! Oct 27 08:25:30.177 INFO kablam! warning: variable does not need to be mutable Oct 27 08:25:30.177 INFO kablam! --> src/main.rs:37:9 Oct 27 08:25:30.177 INFO kablam! | Oct 27 08:25:30.178 INFO kablam! 37 | let mut vec1: Vec = Vec::new(); Oct 27 08:25:30.178 INFO kablam! | ----^^^^ Oct 27 08:25:30.178 INFO kablam! | | Oct 27 08:25:30.178 INFO kablam! | help: remove this `mut` Oct 27 08:25:30.186 INFO kablam! | Oct 27 08:25:30.186 INFO kablam! = note: #[warn(unused_mut)] on by default Oct 27 08:25:30.187 INFO kablam! Oct 27 08:25:30.187 INFO kablam! warning: function is never used: `test_mut_ref` Oct 27 08:25:30.187 INFO kablam! --> src/main.rs:34:1 Oct 27 08:25:30.187 INFO kablam! | Oct 27 08:25:30.187 INFO kablam! 34 | fn test_mut_ref() { Oct 27 08:25:30.187 INFO kablam! | ^^^^^^^^^^^^^^^^^ Oct 27 08:25:30.187 INFO kablam! | Oct 27 08:25:30.187 INFO kablam! = note: #[warn(dead_code)] on by default Oct 27 08:25:30.187 INFO kablam! Oct 27 08:25:30.187 INFO kablam! warning: function is never used: `copy_vec` Oct 27 08:25:30.187 INFO kablam! --> src/main.rs:40:1 Oct 27 08:25:30.187 INFO kablam! | Oct 27 08:25:30.187 INFO kablam! 40 | fn copy_vec(from: &Vec, to: &mut Vec) { Oct 27 08:25:30.187 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 08:25:30.187 INFO kablam! Oct 27 08:25:30.323 INFO kablam! warning: variable `result_ref` is assigned to, but never used Oct 27 08:25:30.323 INFO kablam! --> src/main.rs:4:9 Oct 27 08:25:30.324 INFO kablam! | Oct 27 08:25:30.324 INFO kablam! 4 | let result_ref; Oct 27 08:25:30.324 INFO kablam! | ^^^^^^^^^^ Oct 27 08:25:30.325 INFO kablam! | Oct 27 08:25:30.325 INFO kablam! = note: #[warn(unused_variables)] on by default Oct 27 08:25:30.325 INFO kablam! = note: consider using `_result_ref` instead Oct 27 08:25:30.326 INFO kablam! Oct 27 08:25:30.326 INFO kablam! warning: value assigned to `result_ref` is never read Oct 27 08:25:30.326 INFO kablam! --> src/main.rs:6:5 Oct 27 08:25:30.326 INFO kablam! | Oct 27 08:25:30.327 INFO kablam! 6 | result_ref = which_is_greater(&a, &b) Oct 27 08:25:30.327 INFO kablam! | ^^^^^^^^^^ Oct 27 08:25:30.327 INFO kablam! | Oct 27 08:25:30.328 INFO kablam! = note: #[warn(unused_assignments)] on by default Oct 27 08:25:30.328 INFO kablam! Oct 27 08:25:30.328 INFO kablam! warning: unused variable: `a` Oct 27 08:25:30.328 INFO kablam! --> src/main.rs:25:29 Oct 27 08:25:30.329 INFO kablam! | Oct 27 08:25:30.329 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 { Oct 27 08:25:30.329 INFO kablam! | ^ help: consider using `_a` instead Oct 27 08:25:30.330 INFO kablam! Oct 27 08:25:30.330 INFO kablam! warning: unused variable: `b` Oct 27 08:25:30.330 INFO kablam! --> src/main.rs:25:41 Oct 27 08:25:30.330 INFO kablam! | Oct 27 08:25:30.331 INFO kablam! 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 { Oct 27 08:25:30.331 INFO kablam! | ^ help: consider using `_b` instead Oct 27 08:25:30.331 INFO kablam! Oct 27 08:25:30.331 INFO kablam! warning: unused variable: `vec1` Oct 27 08:25:30.332 INFO kablam! --> src/main.rs:37:13 Oct 27 08:25:30.332 INFO kablam! | Oct 27 08:25:30.332 INFO kablam! 37 | let mut vec1: Vec = Vec::new(); Oct 27 08:25:30.332 INFO kablam! | ^^^^ help: consider using `_vec1` instead Oct 27 08:25:30.332 INFO kablam! Oct 27 08:25:30.332 INFO kablam! warning: variable does not need to be mutable Oct 27 08:25:30.333 INFO kablam! --> src/main.rs:37:9 Oct 27 08:25:30.333 INFO kablam! | Oct 27 08:25:30.333 INFO kablam! 37 | let mut vec1: Vec = Vec::new(); Oct 27 08:25:30.333 INFO kablam! | ----^^^^ Oct 27 08:25:30.333 INFO kablam! | | Oct 27 08:25:30.333 INFO kablam! | help: remove this `mut` Oct 27 08:25:30.334 INFO kablam! | Oct 27 08:25:30.334 INFO kablam! = note: #[warn(unused_mut)] on by default Oct 27 08:25:30.334 INFO kablam! Oct 27 08:25:30.334 INFO kablam! warning: function is never used: `test_mut_ref` Oct 27 08:25:30.334 INFO kablam! --> src/main.rs:34:1 Oct 27 08:25:30.335 INFO kablam! | Oct 27 08:25:30.335 INFO kablam! 34 | fn test_mut_ref() { Oct 27 08:25:30.335 INFO kablam! | ^^^^^^^^^^^^^^^^^ Oct 27 08:25:30.335 INFO kablam! | Oct 27 08:25:30.336 INFO kablam! = note: #[warn(dead_code)] on by default Oct 27 08:25:30.336 INFO kablam! Oct 27 08:25:30.336 INFO kablam! warning: function is never used: `copy_vec` Oct 27 08:25:30.336 INFO kablam! --> src/main.rs:40:1 Oct 27 08:25:30.336 INFO kablam! | Oct 27 08:25:30.337 INFO kablam! 40 | fn copy_vec(from: &Vec, to: &mut Vec) { Oct 27 08:25:30.337 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Oct 27 08:25:30.337 INFO kablam! Oct 27 08:25:30.387 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 0.78s Oct 27 08:25:30.387 INFO kablam! su: No module specific data is present Oct 27 08:25:31.318 INFO running `"docker" "rm" "-f" "f7f7d4b81f6bed196c71457bafc5c2d5b8798d85be1ca96ba23df9690bed6635"` Oct 27 08:25:31.692 INFO blam! f7f7d4b81f6bed196c71457bafc5c2d5b8798d85be1ca96ba23df9690bed6635