Dec 02 00:49:10.269 INFO testing amitdash291/rust_lifetimes against 1.30.1 for beta-1.31-5
Dec 02 00:49:10.269 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 00:49:12.794 INFO [stdout] 4f56bc06ea8d24a61c1e84e1caefca339193c61a2316d677737ade40fd8a1429
Dec 02 00:49:12.796 INFO running `"docker" "start" "-a" "4f56bc06ea8d24a61c1e84e1caefca339193c61a2316d677737ade40fd8a1429"`
Dec 02 00:49:13.314 INFO [stderr] usermod: no changes
Dec 02 00:49:13.344 INFO [stderr]    Compiling lifetime_demo v0.1.0 (/source)
Dec 02 00:49:13.667 INFO [stderr] warning: variable `result_ref` is assigned to, but never used
Dec 02 00:49:13.667 INFO [stderr]  --> src/main.rs:4:9
Dec 02 00:49:13.667 INFO [stderr]   |
Dec 02 00:49:13.667 INFO [stderr] 4 |     let result_ref;
Dec 02 00:49:13.667 INFO [stderr]   |         ^^^^^^^^^^
Dec 02 00:49:13.667 INFO [stderr]   |
Dec 02 00:49:13.667 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 02 00:49:13.667 INFO [stderr]   = note: consider using `_result_ref` instead
Dec 02 00:49:13.667 INFO [stderr] 
Dec 02 00:49:13.667 INFO [stderr] warning: value assigned to `result_ref` is never read
Dec 02 00:49:13.667 INFO [stderr]  --> src/main.rs:6:5
Dec 02 00:49:13.667 INFO [stderr]   |
Dec 02 00:49:13.667 INFO [stderr] 6 |     result_ref = which_is_greater(&a, &b)
Dec 02 00:49:13.667 INFO [stderr]   |     ^^^^^^^^^^
Dec 02 00:49:13.667 INFO [stderr]   |
Dec 02 00:49:13.667 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 02 00:49:13.667 INFO [stderr] 
Dec 02 00:49:13.667 INFO [stderr] warning: unused variable: `a`
Dec 02 00:49:13.667 INFO [stderr]   --> src/main.rs:25:29
Dec 02 00:49:13.667 INFO [stderr]    |
Dec 02 00:49:13.667 INFO [stderr] 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Dec 02 00:49:13.667 INFO [stderr]    |                             ^ help: consider using `_a` instead
Dec 02 00:49:13.667 INFO [stderr] 
Dec 02 00:49:13.667 INFO [stderr] warning: unused variable: `b`
Dec 02 00:49:13.667 INFO [stderr]   --> src/main.rs:25:41
Dec 02 00:49:13.667 INFO [stderr]    |
Dec 02 00:49:13.667 INFO [stderr] 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Dec 02 00:49:13.667 INFO [stderr]    |                                         ^ help: consider using `_b` instead
Dec 02 00:49:13.667 INFO [stderr] 
Dec 02 00:49:13.667 INFO [stderr] warning: unused variable: `vec1`
Dec 02 00:49:13.667 INFO [stderr]   --> src/main.rs:37:13
Dec 02 00:49:13.667 INFO [stderr]    |
Dec 02 00:49:13.667 INFO [stderr] 37 |     let mut vec1: Vec<i32> = Vec::new();
Dec 02 00:49:13.667 INFO [stderr]    |             ^^^^ help: consider using `_vec1` instead
Dec 02 00:49:13.667 INFO [stderr] 
Dec 02 00:49:13.667 INFO [stderr] warning: variable does not need to be mutable
Dec 02 00:49:13.667 INFO [stderr]   --> src/main.rs:37:9
Dec 02 00:49:13.667 INFO [stderr]    |
Dec 02 00:49:13.667 INFO [stderr] 37 |     let mut vec1: Vec<i32> = Vec::new();
Dec 02 00:49:13.667 INFO [stderr]    |         ----^^^^
Dec 02 00:49:13.667 INFO [stderr]    |         |
Dec 02 00:49:13.667 INFO [stderr]    |         help: remove this `mut`
Dec 02 00:49:13.667 INFO [stderr]    |
Dec 02 00:49:13.667 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 00:49:13.667 INFO [stderr] 
Dec 02 00:49:13.668 INFO [stderr] warning: function is never used: `test_mut_ref`
Dec 02 00:49:13.668 INFO [stderr]   --> src/main.rs:34:1
Dec 02 00:49:13.668 INFO [stderr]    |
Dec 02 00:49:13.668 INFO [stderr] 34 | fn test_mut_ref() {
Dec 02 00:49:13.668 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 02 00:49:13.668 INFO [stderr]    |
Dec 02 00:49:13.668 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 02 00:49:13.668 INFO [stderr] 
Dec 02 00:49:13.668 INFO [stderr] warning: function is never used: `copy_vec`
Dec 02 00:49:13.669 INFO [stderr]   --> src/main.rs:40:1
Dec 02 00:49:13.669 INFO [stderr]    |
Dec 02 00:49:13.669 INFO [stderr] 40 | fn copy_vec(from: &Vec<i32>, to: &mut Vec<i32>) {
Dec 02 00:49:13.669 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 00:49:13.669 INFO [stderr] 
Dec 02 00:49:13.859 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 02 00:49:13.861 INFO [stderr] su: No module specific data is present
Dec 02 00:49:16.017 INFO running `"docker" "inspect" "4f56bc06ea8d24a61c1e84e1caefca339193c61a2316d677737ade40fd8a1429"`
Dec 02 00:49:16.113 INFO running `"docker" "rm" "-f" "4f56bc06ea8d24a61c1e84e1caefca339193c61a2316d677737ade40fd8a1429"`
Dec 02 00:49:16.214 INFO [stdout] 4f56bc06ea8d24a61c1e84e1caefca339193c61a2316d677737ade40fd8a1429
Dec 02 00:49:16.216 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 00:49:17.200 INFO [stdout] e062bca7dd57c7deae0bec0ac9c5c747909a875500e35aa1a7badcec66b40b7f
Dec 02 00:49:17.202 INFO running `"docker" "start" "-a" "e062bca7dd57c7deae0bec0ac9c5c747909a875500e35aa1a7badcec66b40b7f"`
Dec 02 00:49:17.798 INFO [stderr] usermod: no changes
Dec 02 00:49:17.825 INFO [stderr]    Compiling lifetime_demo v0.1.0 (/source)
Dec 02 00:49:18.399 INFO [stderr] warning: variable `result_ref` is assigned to, but never used
Dec 02 00:49:18.399 INFO [stderr]  --> src/main.rs:4:9
Dec 02 00:49:18.399 INFO [stderr]   |
Dec 02 00:49:18.399 INFO [stderr] 4 |     let result_ref;
Dec 02 00:49:18.399 INFO [stderr]   |         ^^^^^^^^^^
Dec 02 00:49:18.399 INFO [stderr]   |
Dec 02 00:49:18.399 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 02 00:49:18.399 INFO [stderr]   = note: consider using `_result_ref` instead
Dec 02 00:49:18.399 INFO [stderr] 
Dec 02 00:49:18.399 INFO [stderr] warning: value assigned to `result_ref` is never read
Dec 02 00:49:18.399 INFO [stderr]  --> src/main.rs:6:5
Dec 02 00:49:18.399 INFO [stderr]   |
Dec 02 00:49:18.399 INFO [stderr] 6 |     result_ref = which_is_greater(&a, &b)
Dec 02 00:49:18.400 INFO [stderr]   |     ^^^^^^^^^^
Dec 02 00:49:18.400 INFO [stderr]   |
Dec 02 00:49:18.401 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 02 00:49:18.401 INFO [stderr] 
Dec 02 00:49:18.401 INFO [stderr] warning: unused variable: `a`
Dec 02 00:49:18.401 INFO [stderr]   --> src/main.rs:25:29
Dec 02 00:49:18.402 INFO [stderr]    |
Dec 02 00:49:18.402 INFO [stderr] 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Dec 02 00:49:18.402 INFO [stderr]    |                             ^ help: consider using `_a` instead
Dec 02 00:49:18.402 INFO [stderr] 
Dec 02 00:49:18.402 INFO [stderr] warning: unused variable: `b`
Dec 02 00:49:18.402 INFO [stderr]   --> src/main.rs:25:41
Dec 02 00:49:18.402 INFO [stderr]    |
Dec 02 00:49:18.402 INFO [stderr] 25 | fn which_is_greater<'a, 'b>(a: &'a i32, b: &'b i32) -> &'b i32 {
Dec 02 00:49:18.402 INFO [stderr]    |                                         ^ help: consider using `_b` instead
Dec 02 00:49:18.402 INFO [stderr] 
Dec 02 00:49:18.402 INFO [stderr] warning: unused variable: `vec1`
Dec 02 00:49:18.402 INFO [stderr]   --> src/main.rs:37:13
Dec 02 00:49:18.402 INFO [stderr]    |
Dec 02 00:49:18.402 INFO [stderr] 37 |     let mut vec1: Vec<i32> = Vec::new();
Dec 02 00:49:18.402 INFO [stderr]    |             ^^^^ help: consider using `_vec1` instead
Dec 02 00:49:18.402 INFO [stderr] 
Dec 02 00:49:18.402 INFO [stderr] warning: variable does not need to be mutable
Dec 02 00:49:18.402 INFO [stderr]   --> src/main.rs:37:9
Dec 02 00:49:18.402 INFO [stderr]    |
Dec 02 00:49:18.402 INFO [stderr] 37 |     let mut vec1: Vec<i32> = Vec::new();
Dec 02 00:49:18.402 INFO [stderr]    |         ----^^^^
Dec 02 00:49:18.402 INFO [stderr]    |         |
Dec 02 00:49:18.402 INFO [stderr]    |         help: remove this `mut`
Dec 02 00:49:18.402 INFO [stderr]    |
Dec 02 00:49:18.402 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 00:49:18.402 INFO [stderr] 
Dec 02 00:49:18.402 INFO [stderr] warning: function is never used: `test_mut_ref`
Dec 02 00:49:18.402 INFO [stderr]   --> src/main.rs:34:1
Dec 02 00:49:18.402 INFO [stderr]    |
Dec 02 00:49:18.402 INFO [stderr] 34 | fn test_mut_ref() {
Dec 02 00:49:18.402 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 02 00:49:18.402 INFO [stderr]    |
Dec 02 00:49:18.402 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 02 00:49:18.402 INFO [stderr] 
Dec 02 00:49:18.402 INFO [stderr] warning: function is never used: `copy_vec`
Dec 02 00:49:18.402 INFO [stderr]   --> src/main.rs:40:1
Dec 02 00:49:18.402 INFO [stderr]    |
Dec 02 00:49:18.402 INFO [stderr] 40 | fn copy_vec(from: &Vec<i32>, to: &mut Vec<i32>) {
Dec 02 00:49:18.402 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 00:49:18.402 INFO [stderr] 
Dec 02 00:49:18.819 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
Dec 02 00:49:18.824 INFO [stderr] su: No module specific data is present
Dec 02 00:49:28.370 INFO running `"docker" "inspect" "e062bca7dd57c7deae0bec0ac9c5c747909a875500e35aa1a7badcec66b40b7f"`
Dec 02 00:49:28.607 INFO running `"docker" "rm" "-f" "e062bca7dd57c7deae0bec0ac9c5c747909a875500e35aa1a7badcec66b40b7f"`
Dec 02 00:49:31.044 INFO [stdout] e062bca7dd57c7deae0bec0ac9c5c747909a875500e35aa1a7badcec66b40b7f
Dec 02 00:49:31.048 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 00:49:31.352 INFO [stdout] 813fb67010af1eee237a67bfcf7aa7ca457386d123b39652bdf83b3d33c5df66
Dec 02 00:49:31.359 INFO running `"docker" "start" "-a" "813fb67010af1eee237a67bfcf7aa7ca457386d123b39652bdf83b3d33c5df66"`
Dec 02 00:49:32.305 INFO [stderr] usermod: no changes
Dec 02 00:49:32.368 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 02 00:49:32.368 INFO [stderr]      Running /target/debug/deps/lifetime_demo-ad5f6f0c9e82439e
Dec 02 00:49:32.387 INFO [stdout] 
Dec 02 00:49:32.387 INFO [stdout] running 0 tests
Dec 02 00:49:32.387 INFO [stdout] 
Dec 02 00:49:32.387 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 00:49:32.387 INFO [stdout] 
Dec 02 00:49:32.388 INFO [stderr] su: No module specific data is present
Dec 02 00:49:32.907 INFO running `"docker" "inspect" "813fb67010af1eee237a67bfcf7aa7ca457386d123b39652bdf83b3d33c5df66"`
Dec 02 00:49:33.195 INFO running `"docker" "rm" "-f" "813fb67010af1eee237a67bfcf7aa7ca457386d123b39652bdf83b3d33c5df66"`
Dec 02 00:49:33.519 INFO [stdout] 813fb67010af1eee237a67bfcf7aa7ca457386d123b39652bdf83b3d33c5df66
