Oct 27 02:23:49.929 INFO checking kbacha/string-clone-performance-rust against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 02:23:49.930 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-0/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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 02:23:50.344 INFO blam! c32ee1a981169051e3bf9aa93f2b6d5f618455489980054e1857ee88ca9ba80e
Oct 27 02:23:50.346 INFO running `"docker" "start" "-a" "c32ee1a981169051e3bf9aa93f2b6d5f618455489980054e1857ee88ca9ba80e"`
Oct 27 02:23:52.619 INFO kablam! usermod: no changes
Oct 27 02:23:52.655 INFO kablam!     Checking string-clone-performance v0.1.0 (/source)
Oct 27 02:23:53.391 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 27 02:23:53.392 INFO kablam!   --> src/main.rs:13:38
Oct 27 02:23:53.393 INFO kablam!    |
Oct 27 02:23:53.393 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Oct 27 02:23:53.394 INFO kablam!    |                                      ^^^^^^^^^^
Oct 27 02:23:53.395 INFO kablam!    |
Oct 27 02:23:53.395 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 27 02:23:53.396 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 27 02:23:53.397 INFO kablam! 
Oct 27 02:23:53.397 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 27 02:23:53.398 INFO kablam!   --> src/main.rs:15:39
Oct 27 02:23:53.399 INFO kablam!    |
Oct 27 02:23:53.399 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Oct 27 02:23:53.400 INFO kablam!    |                                       ^^^^^^^^^^
Oct 27 02:23:53.401 INFO kablam!    |
Oct 27 02:23:53.401 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 27 02:23:53.402 INFO kablam! 
Oct 27 02:23:53.402 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 27 02:23:53.402 INFO kablam!   --> src/main.rs:17:41
Oct 27 02:23:53.402 INFO kablam!    |
Oct 27 02:23:53.402 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Oct 27 02:23:53.402 INFO kablam!    |                                         ^^^^^^^^^^
Oct 27 02:23:53.402 INFO kablam!    |
Oct 27 02:23:53.402 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 27 02:23:53.402 INFO kablam! 
Oct 27 02:23:53.402 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 27 02:23:53.402 INFO kablam!   --> src/main.rs:19:41
Oct 27 02:23:53.402 INFO kablam!    |
Oct 27 02:23:53.402 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Oct 27 02:23:53.402 INFO kablam!    |                                         ^^^^^^^^^^
Oct 27 02:23:53.402 INFO kablam!    |
Oct 27 02:23:53.407 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 27 02:23:53.407 INFO kablam! 
Oct 27 02:23:53.459 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 27 02:23:53.459 INFO kablam!   --> src/main.rs:13:38
Oct 27 02:23:53.460 INFO kablam!    |
Oct 27 02:23:53.460 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Oct 27 02:23:53.460 INFO kablam!    |                                      ^^^^^^^^^^
Oct 27 02:23:53.460 INFO kablam!    |
Oct 27 02:23:53.460 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 27 02:23:53.460 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 27 02:23:53.460 INFO kablam! 
Oct 27 02:23:53.460 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 27 02:23:53.460 INFO kablam!   --> src/main.rs:15:39
Oct 27 02:23:53.460 INFO kablam!    |
Oct 27 02:23:53.460 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Oct 27 02:23:53.460 INFO kablam!    |                                       ^^^^^^^^^^
Oct 27 02:23:53.460 INFO kablam!    |
Oct 27 02:23:53.460 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 27 02:23:53.460 INFO kablam! 
Oct 27 02:23:53.460 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 27 02:23:53.460 INFO kablam!   --> src/main.rs:17:41
Oct 27 02:23:53.460 INFO kablam!    |
Oct 27 02:23:53.460 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Oct 27 02:23:53.460 INFO kablam!    |                                         ^^^^^^^^^^
Oct 27 02:23:53.460 INFO kablam!    |
Oct 27 02:23:53.460 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 27 02:23:53.460 INFO kablam! 
Oct 27 02:23:53.460 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 27 02:23:53.460 INFO kablam!   --> src/main.rs:19:41
Oct 27 02:23:53.460 INFO kablam!    |
Oct 27 02:23:53.460 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Oct 27 02:23:53.460 INFO kablam!    |                                         ^^^^^^^^^^
Oct 27 02:23:53.460 INFO kablam!    |
Oct 27 02:23:53.460 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 27 02:23:53.460 INFO kablam! 
Oct 27 02:23:53.493 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Oct 27 02:23:53.495 INFO kablam! su: No module specific data is present
Oct 27 02:23:55.143 INFO running `"docker" "rm" "-f" "c32ee1a981169051e3bf9aa93f2b6d5f618455489980054e1857ee88ca9ba80e"`
Oct 27 02:23:55.563 INFO blam! c32ee1a981169051e3bf9aa93f2b6d5f618455489980054e1857ee88ca9ba80e