Nov 06 19:31:48.850 INFO checking kbacha/string-clone-performance-rust against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 19:31:48.851 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-2/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 06 19:31:49.175 INFO blam! baa3b01b52f94508341c2a516508dd07a9222d261c9a4db35bba9ebdd827933f
Nov 06 19:31:49.177 INFO running `"docker" "start" "-a" "baa3b01b52f94508341c2a516508dd07a9222d261c9a4db35bba9ebdd827933f"`
Nov 06 19:31:51.312 INFO kablam! usermod: no changes
Nov 06 19:31:51.421 INFO kablam!     Checking string-clone-performance v0.1.0 (/source)
Nov 06 19:31:52.125 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 06 19:31:52.126 INFO kablam!   --> src/main.rs:13:38
Nov 06 19:31:52.127 INFO kablam!    |
Nov 06 19:31:52.128 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 06 19:31:52.128 INFO kablam!    |                                      ^^^^^^^^^^
Nov 06 19:31:52.129 INFO kablam!    |
Nov 06 19:31:52.130 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 06 19:31:52.130 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 06 19:31:52.131 INFO kablam! 
Nov 06 19:31:52.131 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 06 19:31:52.132 INFO kablam!   --> src/main.rs:15:39
Nov 06 19:31:52.133 INFO kablam!    |
Nov 06 19:31:52.133 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 06 19:31:52.134 INFO kablam!    |                                       ^^^^^^^^^^
Nov 06 19:31:52.135 INFO kablam!    |
Nov 06 19:31:52.135 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 06 19:31:52.135 INFO kablam! 
Nov 06 19:31:52.136 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 06 19:31:52.136 INFO kablam!   --> src/main.rs:17:41
Nov 06 19:31:52.136 INFO kablam!    |
Nov 06 19:31:52.136 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 06 19:31:52.136 INFO kablam!    |                                         ^^^^^^^^^^
Nov 06 19:31:52.136 INFO kablam!    |
Nov 06 19:31:52.136 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 06 19:31:52.136 INFO kablam! 
Nov 06 19:31:52.136 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 06 19:31:52.136 INFO kablam!   --> src/main.rs:19:41
Nov 06 19:31:52.136 INFO kablam!    |
Nov 06 19:31:52.136 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 06 19:31:52.136 INFO kablam!    |                                         ^^^^^^^^^^
Nov 06 19:31:52.136 INFO kablam!    |
Nov 06 19:31:52.140 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 06 19:31:52.140 INFO kablam! 
Nov 06 19:31:52.252 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 06 19:31:52.253 INFO kablam!   --> src/main.rs:13:38
Nov 06 19:31:52.254 INFO kablam!    |
Nov 06 19:31:52.255 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 06 19:31:52.256 INFO kablam!    |                                      ^^^^^^^^^^
Nov 06 19:31:52.256 INFO kablam!    |
Nov 06 19:31:52.257 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 06 19:31:52.258 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 06 19:31:52.258 INFO kablam! 
Nov 06 19:31:52.259 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 06 19:31:52.260 INFO kablam!   --> src/main.rs:15:39
Nov 06 19:31:52.260 INFO kablam!    |
Nov 06 19:31:52.261 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 06 19:31:52.262 INFO kablam!    |                                       ^^^^^^^^^^
Nov 06 19:31:52.262 INFO kablam!    |
Nov 06 19:31:52.263 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 06 19:31:52.264 INFO kablam! 
Nov 06 19:31:52.265 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 06 19:31:52.265 INFO kablam!   --> src/main.rs:17:41
Nov 06 19:31:52.266 INFO kablam!    |
Nov 06 19:31:52.266 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 06 19:31:52.266 INFO kablam!    |                                         ^^^^^^^^^^
Nov 06 19:31:52.267 INFO kablam!    |
Nov 06 19:31:52.267 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 06 19:31:52.267 INFO kablam! 
Nov 06 19:31:52.269 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 06 19:31:52.269 INFO kablam!   --> src/main.rs:19:41
Nov 06 19:31:52.269 INFO kablam!    |
Nov 06 19:31:52.269 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 06 19:31:52.269 INFO kablam!    |                                         ^^^^^^^^^^
Nov 06 19:31:52.269 INFO kablam!    |
Nov 06 19:31:52.269 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 06 19:31:52.269 INFO kablam! 
Nov 06 19:31:52.297 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Nov 06 19:31:52.300 INFO kablam! su: No module specific data is present
Nov 06 19:31:53.354 INFO running `"docker" "rm" "-f" "baa3b01b52f94508341c2a516508dd07a9222d261c9a4db35bba9ebdd827933f"`
Nov 06 19:31:53.742 INFO blam! baa3b01b52f94508341c2a516508dd07a9222d261c9a4db35bba9ebdd827933f