Oct 21 16:36:45.186 INFO checking kbacha/string-clone-performance-rust against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 16:36:45.188 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-7/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 16:36:45.605 INFO blam! 826009719b4764e93bf0ffd9acf2e06b6e5e62f1639880bb3f518a5b49041dbf
Oct 21 16:36:45.628 INFO running `"docker" "start" "-a" "826009719b4764e93bf0ffd9acf2e06b6e5e62f1639880bb3f518a5b49041dbf"`
Oct 21 16:36:46.868 INFO kablam! usermod: no changes
Oct 21 16:36:46.912 INFO kablam!     Checking string-clone-performance v0.1.0 (/source)
Oct 21 16:36:47.435 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 21 16:36:47.435 INFO kablam!   --> src/main.rs:13:38
Oct 21 16:36:47.435 INFO kablam!    |
Oct 21 16:36:47.435 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Oct 21 16:36:47.435 INFO kablam!    |                                      ^^^^^^^^^^
Oct 21 16:36:47.435 INFO kablam!    |
Oct 21 16:36:47.435 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 21 16:36:47.435 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 21 16:36:47.435 INFO kablam! 
Oct 21 16:36:47.435 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 21 16:36:47.435 INFO kablam!   --> src/main.rs:15:39
Oct 21 16:36:47.435 INFO kablam!    |
Oct 21 16:36:47.435 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Oct 21 16:36:47.435 INFO kablam!    |                                       ^^^^^^^^^^
Oct 21 16:36:47.435 INFO kablam!    |
Oct 21 16:36:47.435 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 21 16:36:47.435 INFO kablam! 
Oct 21 16:36:47.441 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 21 16:36:47.441 INFO kablam!   --> src/main.rs:17:41
Oct 21 16:36:47.441 INFO kablam!    |
Oct 21 16:36:47.441 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Oct 21 16:36:47.441 INFO kablam!    |                                         ^^^^^^^^^^
Oct 21 16:36:47.441 INFO kablam!    |
Oct 21 16:36:47.441 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 21 16:36:47.441 INFO kablam! 
Oct 21 16:36:47.441 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 21 16:36:47.441 INFO kablam!   --> src/main.rs:19:41
Oct 21 16:36:47.441 INFO kablam!    |
Oct 21 16:36:47.441 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Oct 21 16:36:47.441 INFO kablam!    |                                         ^^^^^^^^^^
Oct 21 16:36:47.441 INFO kablam!    |
Oct 21 16:36:47.441 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 21 16:36:47.441 INFO kablam! 
Oct 21 16:36:47.476 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 21 16:36:47.476 INFO kablam!   --> src/main.rs:13:38
Oct 21 16:36:47.476 INFO kablam!    |
Oct 21 16:36:47.476 INFO kablam! 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Oct 21 16:36:47.476 INFO kablam!    |                                      ^^^^^^^^^^
Oct 21 16:36:47.476 INFO kablam!    |
Oct 21 16:36:47.476 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 21 16:36:47.476 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 21 16:36:47.476 INFO kablam! 
Oct 21 16:36:47.476 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 21 16:36:47.476 INFO kablam!   --> src/main.rs:15:39
Oct 21 16:36:47.476 INFO kablam!    |
Oct 21 16:36:47.476 INFO kablam! 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Oct 21 16:36:47.476 INFO kablam!    |                                       ^^^^^^^^^^
Oct 21 16:36:47.476 INFO kablam!    |
Oct 21 16:36:47.476 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 21 16:36:47.476 INFO kablam! 
Oct 21 16:36:47.476 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 21 16:36:47.476 INFO kablam!   --> src/main.rs:17:41
Oct 21 16:36:47.476 INFO kablam!    |
Oct 21 16:36:47.476 INFO kablam! 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Oct 21 16:36:47.476 INFO kablam!    |                                         ^^^^^^^^^^
Oct 21 16:36:47.476 INFO kablam!    |
Oct 21 16:36:47.476 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 21 16:36:47.476 INFO kablam! 
Oct 21 16:36:47.476 INFO kablam! warning: unused return value of `std::clone::Clone::clone` that must be used
Oct 21 16:36:47.476 INFO kablam!   --> src/main.rs:19:41
Oct 21 16:36:47.476 INFO kablam!    |
Oct 21 16:36:47.476 INFO kablam! 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Oct 21 16:36:47.476 INFO kablam!    |                                         ^^^^^^^^^^
Oct 21 16:36:47.476 INFO kablam!    |
Oct 21 16:36:47.476 INFO kablam!    = note: cloning is often expensive and is not expected to have side effects
Oct 21 16:36:47.476 INFO kablam! 
Oct 21 16:36:47.504 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Oct 21 16:36:47.512 INFO kablam! su: No module specific data is present
Oct 21 16:36:48.276 INFO running `"docker" "rm" "-f" "826009719b4764e93bf0ffd9acf2e06b6e5e62f1639880bb3f518a5b49041dbf"`
Oct 21 16:36:48.552 INFO blam! 826009719b4764e93bf0ffd9acf2e06b6e5e62f1639880bb3f518a5b49041dbf