Dec 04 14:05:15.208 INFO checking millere/bf against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 14:05:15.208 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 14:05:15.824 INFO [stdout] 792474280d04b61bdbfd5a266dbdd44528dd71c7043b52b77d63d227473b1a0d
Dec 04 14:05:15.831 INFO running `"docker" "start" "-a" "792474280d04b61bdbfd5a266dbdd44528dd71c7043b52b77d63d227473b1a0d"`
Dec 04 14:05:17.375 INFO [stderr] usermod: no changes
Dec 04 14:05:17.415 INFO [stderr]     Checking bf v0.0.1 (/source)
Dec 04 14:05:18.051 INFO [stderr] warning: unused import: `std::io::Read`
Dec 04 14:05:18.051 INFO [stderr]  --> src/main.rs:2:5
Dec 04 14:05:18.051 INFO [stderr]   |
Dec 04 14:05:18.051 INFO [stderr] 2 | use std::io::Read;
Dec 04 14:05:18.051 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 14:05:18.051 INFO [stderr]   |
Dec 04 14:05:18.051 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:05:18.051 INFO [stderr] 
Dec 04 14:05:18.064 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:05:18.064 INFO [stderr]   --> src/main.rs:14:22
Dec 04 14:05:18.064 INFO [stderr]    |
Dec 04 14:05:18.064 INFO [stderr] 14 |             b'.' => {output.write(&mut buffer[mptr .. mptr+1]);},
Dec 04 14:05:18.064 INFO [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:05:18.064 INFO [stderr]    |
Dec 04 14:05:18.064 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 14:05:18.064 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:05:18.064 INFO [stderr] 
Dec 04 14:05:18.160 INFO [stderr] warning: unused import: `std::io::Read`
Dec 04 14:05:18.160 INFO [stderr]  --> src/main.rs:2:5
Dec 04 14:05:18.160 INFO [stderr]   |
Dec 04 14:05:18.160 INFO [stderr] 2 | use std::io::Read;
Dec 04 14:05:18.160 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 14:05:18.160 INFO [stderr]   |
Dec 04 14:05:18.160 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:05:18.160 INFO [stderr] 
Dec 04 14:05:18.160 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:05:18.160 INFO [stderr]   --> src/main.rs:14:22
Dec 04 14:05:18.160 INFO [stderr]    |
Dec 04 14:05:18.160 INFO [stderr] 14 |             b'.' => {output.write(&mut buffer[mptr .. mptr+1]);},
Dec 04 14:05:18.160 INFO [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:05:18.160 INFO [stderr]    |
Dec 04 14:05:18.160 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 14:05:18.160 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:05:18.160 INFO [stderr] 
Dec 04 14:05:18.187 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
Dec 04 14:05:18.194 INFO [stderr] su: No module specific data is present
Dec 04 14:05:18.920 INFO running `"docker" "inspect" "792474280d04b61bdbfd5a266dbdd44528dd71c7043b52b77d63d227473b1a0d"`
Dec 04 14:05:19.103 INFO running `"docker" "rm" "-f" "792474280d04b61bdbfd5a266dbdd44528dd71c7043b52b77d63d227473b1a0d"`
Dec 04 14:05:19.434 INFO [stdout] 792474280d04b61bdbfd5a266dbdd44528dd71c7043b52b77d63d227473b1a0d