Nov 28 02:41:29.750 INFO checking kbacha/string-clone-performance-rust against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 02:41:29.750 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 02:41:30.280 INFO [stdout] e0d7abc42f5772ebfc5b37a175867ad793edf5bee367cfda1fc2e46b50fb9239
Nov 28 02:41:30.283 INFO running `"docker" "start" "-a" "e0d7abc42f5772ebfc5b37a175867ad793edf5bee367cfda1fc2e46b50fb9239"`
Nov 28 02:41:32.315 INFO [stderr] usermod: no changes
Nov 28 02:41:32.388 INFO [stderr]     Checking string-clone-performance v0.1.0 (/source)
Nov 28 02:41:33.076 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:33.076 INFO [stderr]   --> src/main.rs:13:38
Nov 28 02:41:33.076 INFO [stderr]    |
Nov 28 02:41:33.076 INFO [stderr] 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:33.076 INFO [stderr]    |                                      ^^^^^^^^^^
Nov 28 02:41:33.076 INFO [stderr]    |
Nov 28 02:41:33.078 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 02:41:33.078 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:33.078 INFO [stderr] 
Nov 28 02:41:33.078 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:33.078 INFO [stderr]   --> src/main.rs:15:39
Nov 28 02:41:33.078 INFO [stderr]    |
Nov 28 02:41:33.078 INFO [stderr] 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:33.078 INFO [stderr]    |                                       ^^^^^^^^^^
Nov 28 02:41:33.078 INFO [stderr]    |
Nov 28 02:41:33.078 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:33.078 INFO [stderr] 
Nov 28 02:41:33.078 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:33.078 INFO [stderr]   --> src/main.rs:17:41
Nov 28 02:41:33.078 INFO [stderr]    |
Nov 28 02:41:33.078 INFO [stderr] 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:33.078 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 28 02:41:33.078 INFO [stderr]    |
Nov 28 02:41:33.078 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:33.078 INFO [stderr] 
Nov 28 02:41:33.078 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:33.078 INFO [stderr]   --> src/main.rs:19:41
Nov 28 02:41:33.078 INFO [stderr]    |
Nov 28 02:41:33.078 INFO [stderr] 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 28 02:41:33.078 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 28 02:41:33.078 INFO [stderr]    |
Nov 28 02:41:33.078 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:33.078 INFO [stderr] 
Nov 28 02:41:33.092 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:33.093 INFO [stderr]   --> src/main.rs:13:38
Nov 28 02:41:33.094 INFO [stderr]    |
Nov 28 02:41:33.094 INFO [stderr] 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:33.094 INFO [stderr]    |                                      ^^^^^^^^^^
Nov 28 02:41:33.094 INFO [stderr]    |
Nov 28 02:41:33.095 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 02:41:33.095 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:33.095 INFO [stderr] 
Nov 28 02:41:33.095 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:33.095 INFO [stderr]   --> src/main.rs:15:39
Nov 28 02:41:33.095 INFO [stderr]    |
Nov 28 02:41:33.095 INFO [stderr] 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:33.095 INFO [stderr]    |                                       ^^^^^^^^^^
Nov 28 02:41:33.097 INFO [stderr]    |
Nov 28 02:41:33.097 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:33.097 INFO [stderr] 
Nov 28 02:41:33.097 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:33.097 INFO [stderr]   --> src/main.rs:17:41
Nov 28 02:41:33.097 INFO [stderr]    |
Nov 28 02:41:33.097 INFO [stderr] 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:33.097 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 28 02:41:33.097 INFO [stderr]    |
Nov 28 02:41:33.097 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:33.097 INFO [stderr] 
Nov 28 02:41:33.097 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:33.097 INFO [stderr]   --> src/main.rs:19:41
Nov 28 02:41:33.097 INFO [stderr]    |
Nov 28 02:41:33.099 INFO [stderr] 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 28 02:41:33.099 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 28 02:41:33.099 INFO [stderr]    |
Nov 28 02:41:33.099 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:33.099 INFO [stderr] 
Nov 28 02:41:33.124 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
Nov 28 02:41:33.127 INFO [stderr] su: No module specific data is present
Nov 28 02:41:34.509 INFO running `"docker" "inspect" "e0d7abc42f5772ebfc5b37a175867ad793edf5bee367cfda1fc2e46b50fb9239"`
Nov 28 02:41:34.831 INFO running `"docker" "rm" "-f" "e0d7abc42f5772ebfc5b37a175867ad793edf5bee367cfda1fc2e46b50fb9239"`
Nov 28 02:41:35.221 INFO [stdout] e0d7abc42f5772ebfc5b37a175867ad793edf5bee367cfda1fc2e46b50fb9239