Nov 09 10:39:45.926 INFO checking kbacha/string-clone-performance-rust against master#653da4fd006c97625247acd7e076d0782cdc149b for pr-55632
Nov 09 10:39:45.930 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-0/master#653da4fd006c97625247acd7e076d0782cdc149b:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55632/master#653da4fd006c97625247acd7e076d0782cdc149b:/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 +653da4fd006c97625247acd7e076d0782cdc149b-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 09 10:39:46.359 INFO blam! 93770fc09351b14c0b83b0be4063bb22e09237883d700c90a3cd9b4edd1d4f6d
Nov 09 10:39:46.367 INFO running `"docker" "start" "-a" "93770fc09351b14c0b83b0be4063bb22e09237883d700c90a3cd9b4edd1d4f6d"`
Nov 09 10:39:47.603 INFO kablam! usermod: no changes
Nov 09 10:39:47.666 INFO kablam!     Checking string-clone-performance v0.1.0 (/source)
Nov 09 10:39:48.283 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 09 10:39:48.283 INFO kablam!   --> src/main.rs:13:38
Nov 09 10:39:48.283 INFO kablam!    |
Nov 09 10:39:48.283 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 09 10:39:48.283 INFO kablam!    |                                      ^^^^^^^^^^
Nov 09 10:39:48.283 INFO kablam!    |
Nov 09 10:39:48.283 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 09 10:39:48.283 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 09 10:39:48.283 INFO kablam! 
Nov 09 10:39:48.283 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 09 10:39:48.283 INFO kablam!   --> src/main.rs:15:39
Nov 09 10:39:48.283 INFO kablam!    |
Nov 09 10:39:48.283 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 09 10:39:48.283 INFO kablam!    |                                       ^^^^^^^^^^
Nov 09 10:39:48.283 INFO kablam!    |
Nov 09 10:39:48.283 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 09 10:39:48.283 INFO kablam! 
Nov 09 10:39:48.283 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 09 10:39:48.283 INFO kablam!   --> src/main.rs:17:41
Nov 09 10:39:48.283 INFO kablam!    |
Nov 09 10:39:48.283 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 09 10:39:48.283 INFO kablam!    |                                         ^^^^^^^^^^
Nov 09 10:39:48.283 INFO kablam!    |
Nov 09 10:39:48.283 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 09 10:39:48.283 INFO kablam! 
Nov 09 10:39:48.283 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 09 10:39:48.283 INFO kablam!   --> src/main.rs:19:41
Nov 09 10:39:48.283 INFO kablam!    |
Nov 09 10:39:48.283 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 09 10:39:48.283 INFO kablam!    |                                         ^^^^^^^^^^
Nov 09 10:39:48.283 INFO kablam!    |
Nov 09 10:39:48.283 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 09 10:39:48.283 INFO kablam! 
Nov 09 10:39:48.411 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 09 10:39:48.411 INFO kablam!   --> src/main.rs:13:38
Nov 09 10:39:48.411 INFO kablam!    |
Nov 09 10:39:48.411 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 09 10:39:48.411 INFO kablam!    |                                      ^^^^^^^^^^
Nov 09 10:39:48.411 INFO kablam!    |
Nov 09 10:39:48.411 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 09 10:39:48.411 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 09 10:39:48.411 INFO kablam! 
Nov 09 10:39:48.411 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 09 10:39:48.411 INFO kablam!   --> src/main.rs:15:39
Nov 09 10:39:48.411 INFO kablam!    |
Nov 09 10:39:48.411 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 09 10:39:48.411 INFO kablam!    |                                       ^^^^^^^^^^
Nov 09 10:39:48.411 INFO kablam!    |
Nov 09 10:39:48.411 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 09 10:39:48.411 INFO kablam! 
Nov 09 10:39:48.411 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 09 10:39:48.411 INFO kablam!   --> src/main.rs:17:41
Nov 09 10:39:48.411 INFO kablam!    |
Nov 09 10:39:48.411 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 09 10:39:48.411 INFO kablam!    |                                         ^^^^^^^^^^
Nov 09 10:39:48.411 INFO kablam!    |
Nov 09 10:39:48.411 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 09 10:39:48.411 INFO kablam! 
Nov 09 10:39:48.411 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 09 10:39:48.411 INFO kablam!   --> src/main.rs:19:41
Nov 09 10:39:48.411 INFO kablam!    |
Nov 09 10:39:48.411 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 09 10:39:48.411 INFO kablam!    |                                         ^^^^^^^^^^
Nov 09 10:39:48.411 INFO kablam!    |
Nov 09 10:39:48.411 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Nov 09 10:39:48.411 INFO kablam! 
Nov 09 10:39:48.431 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Nov 09 10:39:48.439 INFO kablam! su: No module specific data is present
Nov 09 10:39:49.276 INFO running `"docker" "rm" "-f" "93770fc09351b14c0b83b0be4063bb22e09237883d700c90a3cd9b4edd1d4f6d"`
Nov 09 10:39:49.567 INFO blam! 93770fc09351b14c0b83b0be4063bb22e09237883d700c90a3cd9b4edd1d4f6d