Nov 30 00:17:53.802 INFO checking kbacha/string-clone-performance-rust against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 00:17:53.802 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 00:17:54.280 INFO [stdout] 57eb89d93f8055417583a6259777ac7ffd6e463732af0b12e2eb2d6184998594
Nov 30 00:17:54.286 INFO running `"docker" "start" "-a" "57eb89d93f8055417583a6259777ac7ffd6e463732af0b12e2eb2d6184998594"`
Nov 30 00:17:55.972 INFO [stderr] usermod: no changes
Nov 30 00:17:56.034 INFO [stderr]     Checking string-clone-performance v0.1.0 (/source)
Nov 30 00:17:56.596 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 30 00:17:56.596 INFO [stderr]   --> src/main.rs:13:38
Nov 30 00:17:56.596 INFO [stderr]    |
Nov 30 00:17:56.596 INFO [stderr] 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 30 00:17:56.596 INFO [stderr]    |                                      ^^^^^^^^^^
Nov 30 00:17:56.596 INFO [stderr]    |
Nov 30 00:17:56.596 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 00:17:56.596 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 30 00:17:56.596 INFO [stderr] 
Nov 30 00:17:56.596 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 30 00:17:56.596 INFO [stderr]   --> src/main.rs:15:39
Nov 30 00:17:56.596 INFO [stderr]    |
Nov 30 00:17:56.596 INFO [stderr] 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 30 00:17:56.596 INFO [stderr]    |                                       ^^^^^^^^^^
Nov 30 00:17:56.596 INFO [stderr]    |
Nov 30 00:17:56.596 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 30 00:17:56.596 INFO [stderr] 
Nov 30 00:17:56.596 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 30 00:17:56.597 INFO [stderr]   --> src/main.rs:17:41
Nov 30 00:17:56.597 INFO [stderr]    |
Nov 30 00:17:56.597 INFO [stderr] 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 30 00:17:56.597 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 30 00:17:56.597 INFO [stderr]    |
Nov 30 00:17:56.597 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 30 00:17:56.597 INFO [stderr] 
Nov 30 00:17:56.597 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 30 00:17:56.597 INFO [stderr]   --> src/main.rs:19:41
Nov 30 00:17:56.597 INFO [stderr]    |
Nov 30 00:17:56.597 INFO [stderr] 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 30 00:17:56.597 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 30 00:17:56.597 INFO [stderr]    |
Nov 30 00:17:56.597 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 30 00:17:56.597 INFO [stderr] 
Nov 30 00:17:56.636 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 30 00:17:56.636 INFO [stderr]   --> src/main.rs:13:38
Nov 30 00:17:56.636 INFO [stderr]    |
Nov 30 00:17:56.636 INFO [stderr] 13 |     time("100 rs", 100_000_000, || { s.clone(); });
Nov 30 00:17:56.636 INFO [stderr]    |                                      ^^^^^^^^^^
Nov 30 00:17:56.636 INFO [stderr]    |
Nov 30 00:17:56.636 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 00:17:56.636 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 30 00:17:56.636 INFO [stderr] 
Nov 30 00:17:56.636 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 30 00:17:56.636 INFO [stderr]   --> src/main.rs:15:39
Nov 30 00:17:56.636 INFO [stderr]    |
Nov 30 00:17:56.636 INFO [stderr] 15 |     time("1000 rs", 100_000_000, || { s.clone(); });
Nov 30 00:17:56.636 INFO [stderr]    |                                       ^^^^^^^^^^
Nov 30 00:17:56.636 INFO [stderr]    |
Nov 30 00:17:56.636 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 30 00:17:56.636 INFO [stderr] 
Nov 30 00:17:56.636 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 30 00:17:56.636 INFO [stderr]   --> src/main.rs:17:41
Nov 30 00:17:56.636 INFO [stderr]    |
Nov 30 00:17:56.636 INFO [stderr] 17 |     time("10,000 rs", 100_000_000, || { s.clone(); });
Nov 30 00:17:56.636 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 30 00:17:56.636 INFO [stderr]    |
Nov 30 00:17:56.636 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 30 00:17:56.636 INFO [stderr] 
Nov 30 00:17:56.636 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Nov 30 00:17:56.636 INFO [stderr]   --> src/main.rs:19:41
Nov 30 00:17:56.636 INFO [stderr]    |
Nov 30 00:17:56.636 INFO [stderr] 19 |     time("100,000 rs", 10_000_000, || { s.clone(); });
Nov 30 00:17:56.637 INFO [stderr]    |                                         ^^^^^^^^^^
Nov 30 00:17:56.637 INFO [stderr]    |
Nov 30 00:17:56.637 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Nov 30 00:17:56.637 INFO [stderr] 
Nov 30 00:17:56.637 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Nov 30 00:17:56.651 INFO [stderr] su: No module specific data is present
Nov 30 00:17:57.446 INFO running `"docker" "inspect" "57eb89d93f8055417583a6259777ac7ffd6e463732af0b12e2eb2d6184998594"`
Nov 30 00:17:57.702 INFO running `"docker" "rm" "-f" "57eb89d93f8055417583a6259777ac7ffd6e463732af0b12e2eb2d6184998594"`
Nov 30 00:17:57.907 INFO [stdout] 57eb89d93f8055417583a6259777ac7ffd6e463732af0b12e2eb2d6184998594