Dec 11 13:35:00.355 INFO checking millere/bf against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 13:35:00.355 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 13:35:00.962 INFO [stdout] 991bfbcfaadfb1960f6f4c94e70e8ce3410c84925cab228ef671d07501118e56
Dec 11 13:35:00.966 INFO running `"docker" "start" "-a" "991bfbcfaadfb1960f6f4c94e70e8ce3410c84925cab228ef671d07501118e56"`
Dec 11 13:35:02.016 INFO [stderr] usermod: no changes
Dec 11 13:35:02.082 INFO [stderr]     Checking bf v0.0.1 (/source)
Dec 11 13:35:02.534 INFO [stderr] warning: unused import: `std::io::Read`
Dec 11 13:35:02.534 INFO [stderr]  --> src/main.rs:2:5
Dec 11 13:35:02.534 INFO [stderr]   |
Dec 11 13:35:02.534 INFO [stderr] 2 | use std::io::Read;
Dec 11 13:35:02.534 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 13:35:02.534 INFO [stderr]   |
Dec 11 13:35:02.534 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:35:02.534 INFO [stderr] 
Dec 11 13:35:02.544 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:35:02.544 INFO [stderr]   --> src/main.rs:14:22
Dec 11 13:35:02.544 INFO [stderr]    |
Dec 11 13:35:02.544 INFO [stderr] 14 |             b'.' => {output.write(&mut buffer[mptr .. mptr+1]);},
Dec 11 13:35:02.544 INFO [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:35:02.544 INFO [stderr]    |
Dec 11 13:35:02.544 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:35:02.544 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:35:02.544 INFO [stderr] 
Dec 11 13:35:02.748 INFO [stderr] warning: unused import: `std::io::Read`
Dec 11 13:35:02.748 INFO [stderr]  --> src/main.rs:2:5
Dec 11 13:35:02.748 INFO [stderr]   |
Dec 11 13:35:02.748 INFO [stderr] 2 | use std::io::Read;
Dec 11 13:35:02.748 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 13:35:02.748 INFO [stderr]   |
Dec 11 13:35:02.748 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:35:02.748 INFO [stderr] 
Dec 11 13:35:02.760 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:35:02.760 INFO [stderr]   --> src/main.rs:14:22
Dec 11 13:35:02.760 INFO [stderr]    |
Dec 11 13:35:02.760 INFO [stderr] 14 |             b'.' => {output.write(&mut buffer[mptr .. mptr+1]);},
Dec 11 13:35:02.760 INFO [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:35:02.760 INFO [stderr]    |
Dec 11 13:35:02.760 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:35:02.760 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:35:02.760 INFO [stderr] 
Dec 11 13:35:02.804 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 11 13:35:02.808 INFO [stderr] su: No module specific data is present
Dec 11 13:35:03.426 INFO running `"docker" "inspect" "991bfbcfaadfb1960f6f4c94e70e8ce3410c84925cab228ef671d07501118e56"`
Dec 11 13:35:03.616 INFO running `"docker" "rm" "-f" "991bfbcfaadfb1960f6f4c94e70e8ce3410c84925cab228ef671d07501118e56"`
Dec 11 13:35:04.144 INFO [stdout] 991bfbcfaadfb1960f6f4c94e70e8ce3410c84925cab228ef671d07501118e56