Dec 11 09:09:19.381 INFO checking solson/brainrust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 09:09:19.381 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 09:09:19.876 INFO [stdout] abdab82e57b7a45e144815d22f3b37d52396a8e522788992480ca7c831f9bc22
Dec 11 09:09:19.878 INFO running `"docker" "start" "-a" "abdab82e57b7a45e144815d22f3b37d52396a8e522788992480ca7c831f9bc22"`
Dec 11 09:09:21.109 INFO [stderr] usermod: no changes
Dec 11 09:09:21.164 INFO [stderr]     Checking brainrust v0.0.1 (/source)
Dec 11 09:09:21.696 INFO [stderr] warning: struct is never constructed: `CircularTape`
Dec 11 09:09:21.696 INFO [stderr]   --> src/main.rs:85:1
Dec 11 09:09:21.696 INFO [stderr]    |
Dec 11 09:09:21.696 INFO [stderr] 85 | struct CircularTape {
Dec 11 09:09:21.696 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 11 09:09:21.696 INFO [stderr]    |
Dec 11 09:09:21.696 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 09:09:21.696 INFO [stderr] 
Dec 11 09:09:21.696 INFO [stderr] warning: method is never used: `new`
Dec 11 09:09:21.696 INFO [stderr]   --> src/main.rs:91:5
Dec 11 09:09:21.696 INFO [stderr]    |
Dec 11 09:09:21.696 INFO [stderr] 91 |     fn new(size: usize) -> CircularTape {
Dec 11 09:09:21.696 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:09:21.696 INFO [stderr] 
Dec 11 09:09:21.696 INFO [stderr] warning: struct is never constructed: `CircularTape`
Dec 11 09:09:21.696 INFO [stderr]   --> src/main.rs:85:1
Dec 11 09:09:21.696 INFO [stderr]    |
Dec 11 09:09:21.696 INFO [stderr] 85 | struct CircularTape {
Dec 11 09:09:21.696 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 11 09:09:21.696 INFO [stderr]    |
Dec 11 09:09:21.696 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 09:09:21.696 INFO [stderr] 
Dec 11 09:09:21.696 INFO [stderr] warning: method is never used: `new`
Dec 11 09:09:21.696 INFO [stderr]   --> src/main.rs:91:5
Dec 11 09:09:21.696 INFO [stderr]    |
Dec 11 09:09:21.696 INFO [stderr] 91 |     fn new(size: usize) -> CircularTape {
Dec 11 09:09:21.696 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:09:21.696 INFO [stderr] 
Dec 11 09:09:21.733 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Dec 11 09:09:21.744 INFO [stderr] su: No module specific data is present
Dec 11 09:09:22.598 INFO running `"docker" "inspect" "abdab82e57b7a45e144815d22f3b37d52396a8e522788992480ca7c831f9bc22"`
Dec 11 09:09:22.946 INFO running `"docker" "rm" "-f" "abdab82e57b7a45e144815d22f3b37d52396a8e522788992480ca7c831f9bc22"`
Dec 11 09:09:23.415 INFO [stdout] abdab82e57b7a45e144815d22f3b37d52396a8e522788992480ca7c831f9bc22