Dec 06 01:42:19.098 INFO testing dgryski/rust-bf against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 01:42:19.098 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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"`
Dec 06 01:42:19.364 INFO [stdout] f53ae8db4878cd164d87bc696dd577dcd47e3976cf8ce49f6760a80c322420bf
Dec 06 01:42:19.370 INFO running `"docker" "start" "-a" "f53ae8db4878cd164d87bc696dd577dcd47e3976cf8ce49f6760a80c322420bf"`
Dec 06 01:42:19.808 INFO [stderr] usermod: no changes
Dec 06 01:42:19.836 INFO [stderr]    Compiling bf v0.1.0 (/source)
Dec 06 01:42:20.216 INFO [stderr] warning: unused variable: `arg1`
Dec 06 01:42:20.216 INFO [stderr]   --> src/main.rs:17:13
Dec 06 01:42:20.216 INFO [stderr]    |
Dec 06 01:42:20.216 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 06 01:42:20.216 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 06 01:42:20.216 INFO [stderr]    |
Dec 06 01:42:20.216 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 06 01:42:20.216 INFO [stderr] 
Dec 06 01:42:20.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 01:42:20.240 INFO [stderr]   --> src/main.rs:31:9
Dec 06 01:42:20.240 INFO [stderr]    |
Dec 06 01:42:20.240 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 06 01:42:20.240 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:42:20.240 INFO [stderr]    |
Dec 06 01:42:20.240 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 01:42:20.240 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 01:42:20.240 INFO [stderr] 
Dec 06 01:42:21.214 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
Dec 06 01:42:21.216 INFO [stderr] su: No module specific data is present
Dec 06 01:42:21.577 INFO running `"docker" "inspect" "f53ae8db4878cd164d87bc696dd577dcd47e3976cf8ce49f6760a80c322420bf"`
Dec 06 01:42:21.856 INFO running `"docker" "rm" "-f" "f53ae8db4878cd164d87bc696dd577dcd47e3976cf8ce49f6760a80c322420bf"`
Dec 06 01:42:22.080 INFO [stdout] f53ae8db4878cd164d87bc696dd577dcd47e3976cf8ce49f6760a80c322420bf
Dec 06 01:42:22.088 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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"`
Dec 06 01:42:22.474 INFO [stdout] 0092510552af74d34b25b6679a71c444f05012c46020bdf4453f236f9cbc3cd6
Dec 06 01:42:22.477 INFO running `"docker" "start" "-a" "0092510552af74d34b25b6679a71c444f05012c46020bdf4453f236f9cbc3cd6"`
Dec 06 01:42:23.060 INFO [stderr] usermod: no changes
Dec 06 01:42:23.108 INFO [stderr]    Compiling bf v0.1.0 (/source)
Dec 06 01:42:23.550 INFO [stderr] warning: unused variable: `arg1`
Dec 06 01:42:23.550 INFO [stderr]   --> src/main.rs:17:13
Dec 06 01:42:23.550 INFO [stderr]    |
Dec 06 01:42:23.550 INFO [stderr] 17 |     let ref arg1 = args[1];
Dec 06 01:42:23.550 INFO [stderr]    |             ^^^^ help: consider using `_arg1` instead
Dec 06 01:42:23.550 INFO [stderr]    |
Dec 06 01:42:23.550 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 06 01:42:23.550 INFO [stderr] 
Dec 06 01:42:23.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 01:42:23.576 INFO [stderr]   --> src/main.rs:31:9
Dec 06 01:42:23.576 INFO [stderr]    |
Dec 06 01:42:23.576 INFO [stderr] 31 |         io::stderr().write(err.as_bytes());
Dec 06 01:42:23.576 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 01:42:23.576 INFO [stderr]    |
Dec 06 01:42:23.576 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 01:42:23.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 01:42:23.576 INFO [stderr] 
Dec 06 01:42:23.764 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Dec 06 01:42:23.766 INFO [stderr] su: No module specific data is present
Dec 06 01:42:24.090 INFO running `"docker" "inspect" "0092510552af74d34b25b6679a71c444f05012c46020bdf4453f236f9cbc3cd6"`
Dec 06 01:42:24.230 INFO running `"docker" "rm" "-f" "0092510552af74d34b25b6679a71c444f05012c46020bdf4453f236f9cbc3cd6"`
Dec 06 01:42:24.367 INFO [stdout] 0092510552af74d34b25b6679a71c444f05012c46020bdf4453f236f9cbc3cd6
Dec 06 01:42:24.370 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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"`
Dec 06 01:42:24.661 INFO [stdout] d0bbd046b2cca33bde6bc9ead15cb926e88003a8ebd89b8affd8c5fd220f62dc
Dec 06 01:42:24.662 INFO running `"docker" "start" "-a" "d0bbd046b2cca33bde6bc9ead15cb926e88003a8ebd89b8affd8c5fd220f62dc"`
Dec 06 01:42:25.088 INFO [stderr] usermod: no changes
Dec 06 01:42:25.124 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 06 01:42:25.124 INFO [stderr]      Running /target/debug/deps/bf-21d944b10a83925e
Dec 06 01:42:25.127 INFO [stdout] 
Dec 06 01:42:25.127 INFO [stdout] running 0 tests
Dec 06 01:42:25.127 INFO [stdout] 
Dec 06 01:42:25.127 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 01:42:25.127 INFO [stdout] 
Dec 06 01:42:25.129 INFO [stderr] su: No module specific data is present
Dec 06 01:42:25.409 INFO running `"docker" "inspect" "d0bbd046b2cca33bde6bc9ead15cb926e88003a8ebd89b8affd8c5fd220f62dc"`
Dec 06 01:42:25.497 INFO running `"docker" "rm" "-f" "d0bbd046b2cca33bde6bc9ead15cb926e88003a8ebd89b8affd8c5fd220f62dc"`
Dec 06 01:42:25.614 INFO [stdout] d0bbd046b2cca33bde6bc9ead15cb926e88003a8ebd89b8affd8c5fd220f62dc