Nov 28 02:41:24.467 INFO checking kbacha/string-clone-performance-rust against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 02:41:24.469 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 02:41:24.932 INFO [stdout] b7c8a209f57e205f256319c8c203f62844d1cd2b239eeb05efe0675252cee9dc
Nov 28 02:41:24.934 INFO running `"docker" "start" "-a" "b7c8a209f57e205f256319c8c203f62844d1cd2b239eeb05efe0675252cee9dc"`
Nov 28 02:41:26.684 INFO [stderr] usermod: no changes
Nov 28 02:41:26.741 INFO [stderr]     Checking string-clone-performance v0.1.0 (/source)
Nov 28 02:41:27.226 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:27.227 INFO [stderr]   --> src/main.rs:13:38
Nov 28 02:41:27.228 INFO [stderr]    |
Nov 28 02:41:27.228 INFO [stderr] 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:27.229 INFO [stderr]    |                                      ^^^^^^^^^^
Nov 28 02:41:27.229 INFO [stderr]    |
Nov 28 02:41:27.230 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 02:41:27.230 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:27.231 INFO [stderr] 
Nov 28 02:41:27.232 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:27.232 INFO [stderr]   --> src/main.rs:15:39
Nov 28 02:41:27.232 INFO [stderr]    |
Nov 28 02:41:27.232 INFO [stderr] 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:27.233 INFO [stderr]    |                                       ^^^^^^^^^^
Nov 28 02:41:27.233 INFO [stderr]    |
Nov 28 02:41:27.233 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:27.233 INFO [stderr] 
Nov 28 02:41:27.233 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:27.234 INFO [stderr]   --> src/main.rs:17:41
Nov 28 02:41:27.234 INFO [stderr]    |
Nov 28 02:41:27.234 INFO [stderr] 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:27.234 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 28 02:41:27.234 INFO [stderr]    |
Nov 28 02:41:27.234 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:27.235 INFO [stderr] 
Nov 28 02:41:27.235 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:27.235 INFO [stderr]   --> src/main.rs:19:41
Nov 28 02:41:27.235 INFO [stderr]    |
Nov 28 02:41:27.235 INFO [stderr] 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 28 02:41:27.236 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 28 02:41:27.236 INFO [stderr]    |
Nov 28 02:41:27.236 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:27.236 INFO [stderr] 
Nov 28 02:41:27.398 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:27.399 INFO [stderr]   --> src/main.rs:13:38
Nov 28 02:41:27.399 INFO [stderr]    |
Nov 28 02:41:27.399 INFO [stderr] 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:27.399 INFO [stderr]    |                                      ^^^^^^^^^^
Nov 28 02:41:27.399 INFO [stderr]    |
Nov 28 02:41:27.399 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 02:41:27.400 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:27.400 INFO [stderr] 
Nov 28 02:41:27.401 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:27.401 INFO [stderr]   --> src/main.rs:15:39
Nov 28 02:41:27.402 INFO [stderr]    |
Nov 28 02:41:27.402 INFO [stderr] 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:27.403 INFO [stderr]    |                                       ^^^^^^^^^^
Nov 28 02:41:27.403 INFO [stderr]    |
Nov 28 02:41:27.404 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:27.404 INFO [stderr] 
Nov 28 02:41:27.405 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:27.405 INFO [stderr]   --> src/main.rs:17:41
Nov 28 02:41:27.406 INFO [stderr]    |
Nov 28 02:41:27.406 INFO [stderr] 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 28 02:41:27.407 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 28 02:41:27.408 INFO [stderr]    |
Nov 28 02:41:27.408 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:27.408 INFO [stderr] 
Nov 28 02:41:27.408 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 28 02:41:27.408 INFO [stderr]   --> src/main.rs:19:41
Nov 28 02:41:27.408 INFO [stderr]    |
Nov 28 02:41:27.408 INFO [stderr] 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 28 02:41:27.408 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 28 02:41:27.408 INFO [stderr]    |
Nov 28 02:41:27.408 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 28 02:41:27.408 INFO [stderr] 
Nov 28 02:41:27.441 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Nov 28 02:41:27.449 INFO [stderr] su: No module specific data is present
Nov 28 02:41:28.957 INFO running `"docker" "inspect" "b7c8a209f57e205f256319c8c203f62844d1cd2b239eeb05efe0675252cee9dc"`
Nov 28 02:41:29.266 INFO running `"docker" "rm" "-f" "b7c8a209f57e205f256319c8c203f62844d1cd2b239eeb05efe0675252cee9dc"`
Nov 28 02:41:29.656 INFO [stdout] b7c8a209f57e205f256319c8c203f62844d1cd2b239eeb05efe0675252cee9dc