Nov 04 04:32:55.992 INFO checking kbacha/string-clone-performance-rust against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 04:32:55.992 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 04:32:56.527 INFO blam! 89a37c94bae9848820b950597054b362f874e2a37427d016c14aed030af1f783
Nov 04 04:32:56.529 INFO running `"docker" "start" "-a" "89a37c94bae9848820b950597054b362f874e2a37427d016c14aed030af1f783"`
Nov 04 04:32:58.291 INFO kablam! usermod: no changes
Nov 04 04:32:58.368 INFO kablam!     Checking string-clone-performance v0.1.0 (/source)
Nov 04 04:32:58.903 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 04 04:32:58.904 INFO kablam!   --> src/main.rs:13:38
Nov 04 04:32:58.904 INFO kablam!    |
Nov 04 04:32:58.905 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 04 04:32:58.906 INFO kablam!    |                                      ^^^^^^^^^^
Nov 04 04:32:58.907 INFO kablam!    |
Nov 04 04:32:58.907 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 04 04:32:58.908 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 04 04:32:58.909 INFO kablam! 
Nov 04 04:32:58.910 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 04 04:32:58.910 INFO kablam!   --> src/main.rs:15:39
Nov 04 04:32:58.911 INFO kablam!    |
Nov 04 04:32:58.912 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 04 04:32:58.913 INFO kablam!    |                                       ^^^^^^^^^^
Nov 04 04:32:58.913 INFO kablam!    |
Nov 04 04:32:58.913 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 04 04:32:58.913 INFO kablam! 
Nov 04 04:32:58.914 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 04 04:32:58.915 INFO kablam!   --> src/main.rs:17:41
Nov 04 04:32:58.915 INFO kablam!    |
Nov 04 04:32:58.915 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 04 04:32:58.915 INFO kablam!    |                                         ^^^^^^^^^^
Nov 04 04:32:58.916 INFO kablam!    |
Nov 04 04:32:58.916 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 04 04:32:58.916 INFO kablam! 
Nov 04 04:32:58.917 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 04 04:32:58.917 INFO kablam!   --> src/main.rs:19:41
Nov 04 04:32:58.917 INFO kablam!    |
Nov 04 04:32:58.918 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 04 04:32:58.918 INFO kablam!    |                                         ^^^^^^^^^^
Nov 04 04:32:58.918 INFO kablam!    |
Nov 04 04:32:58.919 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 04 04:32:58.919 INFO kablam! 
Nov 04 04:32:58.994 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 04 04:32:58.994 INFO kablam!   --> src/main.rs:13:38
Nov 04 04:32:58.995 INFO kablam!    |
Nov 04 04:32:58.995 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 04 04:32:58.995 INFO kablam!    |                                      ^^^^^^^^^^
Nov 04 04:32:58.996 INFO kablam!    |
Nov 04 04:32:58.996 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 04 04:32:58.996 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 04 04:32:58.996 INFO kablam! 
Nov 04 04:32:58.996 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 04 04:32:58.996 INFO kablam!   --> src/main.rs:15:39
Nov 04 04:32:58.996 INFO kablam!    |
Nov 04 04:32:58.996 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 04 04:32:58.996 INFO kablam!    |                                       ^^^^^^^^^^
Nov 04 04:32:58.996 INFO kablam!    |
Nov 04 04:32:58.996 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 04 04:32:58.996 INFO kablam! 
Nov 04 04:32:58.996 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 04 04:32:58.996 INFO kablam!   --> src/main.rs:17:41
Nov 04 04:32:58.996 INFO kablam!    |
Nov 04 04:32:58.996 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 04 04:32:58.996 INFO kablam!    |                                         ^^^^^^^^^^
Nov 04 04:32:58.996 INFO kablam!    |
Nov 04 04:32:58.996 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 04 04:32:58.996 INFO kablam! 
Nov 04 04:32:58.996 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 04 04:32:58.996 INFO kablam!   --> src/main.rs:19:41
Nov 04 04:32:58.997 INFO kablam!    |
Nov 04 04:32:58.997 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 04 04:32:58.997 INFO kablam!    |                                         ^^^^^^^^^^
Nov 04 04:32:58.997 INFO kablam!    |
Nov 04 04:32:58.997 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 04 04:32:58.997 INFO kablam! 
Nov 04 04:32:59.030 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Nov 04 04:32:59.033 INFO kablam! su: No module specific data is present
Nov 04 04:33:00.299 INFO running `"docker" "rm" "-f" "89a37c94bae9848820b950597054b362f874e2a37427d016c14aed030af1f783"`
Nov 04 04:33:00.708 INFO blam! 89a37c94bae9848820b950597054b362f874e2a37427d016c14aed030af1f783