Dec 12 03:55:16.650 INFO checking AntonioCarta/dragon_compiler against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 03:55:16.650 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 12 03:55:16.867 INFO [stdout] 38ea9e86fd586c8208c6e12f277cb638da3811343281b3f4b3178b23f354c5de
Dec 12 03:55:16.879 INFO running `"docker" "start" "-a" "38ea9e86fd586c8208c6e12f277cb638da3811343281b3f4b3178b23f354c5de"`
Dec 12 03:55:17.305 INFO [stderr] usermod: no changes
Dec 12 03:55:17.334 INFO [stderr]     Checking mini_compiler v0.1.0 (/source)
Dec 12 03:55:17.788 INFO [stderr] warning: unused imports: `AddressMode`, `Address`
Dec 12 03:55:17.788 INFO [stderr]  --> src/interpreter.rs:1:30
Dec 12 03:55:17.788 INFO [stderr]   |
Dec 12 03:55:17.788 INFO [stderr] 1 | use code_generator::{OpCode, AddressMode, AddressCode, Address, IntermediateRepresentation};
Dec 12 03:55:17.788 INFO [stderr]   |                              ^^^^^^^^^^^               ^^^^^^^
Dec 12 03:55:17.788 INFO [stderr]   |
Dec 12 03:55:17.788 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 03:55:17.788 INFO [stderr] 
Dec 12 03:55:17.875 INFO [stderr] warning: unused import: `Scanner`
Dec 12 03:55:17.875 INFO [stderr]  --> src/test/lexer_test.rs:4:13
Dec 12 03:55:17.875 INFO [stderr]   |
Dec 12 03:55:17.875 INFO [stderr] 4 | use lexer::{Scanner};
Dec 12 03:55:17.875 INFO [stderr]   |             ^^^^^^^
Dec 12 03:55:17.875 INFO [stderr]   |
Dec 12 03:55:17.876 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 03:55:17.876 INFO [stderr] 
Dec 12 03:55:17.877 INFO [stderr] warning: unused imports: `AddressMode`, `Address`
Dec 12 03:55:17.877 INFO [stderr]  --> src/interpreter.rs:1:30
Dec 12 03:55:17.877 INFO [stderr]   |
Dec 12 03:55:17.877 INFO [stderr] 1 | use code_generator::{OpCode, AddressMode, AddressCode, Address, IntermediateRepresentation};
Dec 12 03:55:17.877 INFO [stderr]   |                              ^^^^^^^^^^^               ^^^^^^^
Dec 12 03:55:17.877 INFO [stderr] 
Dec 12 03:55:18.179 INFO [stderr] warning: method is never used: `new`
Dec 12 03:55:18.179 INFO [stderr]    --> src/lexer.rs:148:5
Dec 12 03:55:18.179 INFO [stderr]     |
Dec 12 03:55:18.179 INFO [stderr] 148 |     pub fn new() -> Scanner {
Dec 12 03:55:18.179 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:55:18.179 INFO [stderr]     |
Dec 12 03:55:18.179 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 03:55:18.179 INFO [stderr] 
Dec 12 03:55:18.179 INFO [stderr] warning: field is never used: `id`
Dec 12 03:55:18.179 INFO [stderr]   --> src/code_generator.rs:59:9
Dec 12 03:55:18.179 INFO [stderr]    |
Dec 12 03:55:18.179 INFO [stderr] 59 |         id  : i32,
Dec 12 03:55:18.179 INFO [stderr]    |         ^^^^^^^^^
Dec 12 03:55:18.179 INFO [stderr] 
Dec 12 03:55:18.179 INFO [stderr] warning: field is never used: `stack`
Dec 12 03:55:18.179 INFO [stderr]  --> src/interpreter.rs:5:5
Dec 12 03:55:18.179 INFO [stderr]   |
Dec 12 03:55:18.180 INFO [stderr] 5 |     stack     : Vec<i32>,
Dec 12 03:55:18.180 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 03:55:18.180 INFO [stderr] 
Dec 12 03:55:18.292 INFO [stderr] warning: method is never used: `new`
Dec 12 03:55:18.292 INFO [stderr]    --> src/lexer.rs:148:5
Dec 12 03:55:18.292 INFO [stderr]     |
Dec 12 03:55:18.292 INFO [stderr] 148 |     pub fn new() -> Scanner {
Dec 12 03:55:18.292 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:55:18.292 INFO [stderr]     |
Dec 12 03:55:18.292 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 03:55:18.292 INFO [stderr] 
Dec 12 03:55:18.292 INFO [stderr] warning: type alias is never used: `SAst`
Dec 12 03:55:18.292 INFO [stderr]  --> src/test/parser_test.rs:9:5
Dec 12 03:55:18.292 INFO [stderr]   |
Dec 12 03:55:18.292 INFO [stderr] 9 |     type SAst = Box<S>;
Dec 12 03:55:18.292 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 12 03:55:18.292 INFO [stderr] 
Dec 12 03:55:18.292 INFO [stderr] warning: function is never used: `add`
Dec 12 03:55:18.292 INFO [stderr]   --> src/test/parser_test.rs:52:5
Dec 12 03:55:18.292 INFO [stderr]    |
Dec 12 03:55:18.292 INFO [stderr] 52 |     fn add(e1 : NAst, e2 : NAst) -> NAst { nbox(N::Add(e1, e2)) }
Dec 12 03:55:18.292 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:55:18.292 INFO [stderr] 
Dec 12 03:55:18.292 INFO [stderr] warning: field is never used: `id`
Dec 12 03:55:18.292 INFO [stderr]   --> src/code_generator.rs:59:9
Dec 12 03:55:18.292 INFO [stderr]    |
Dec 12 03:55:18.292 INFO [stderr] 59 |         id  : i32,
Dec 12 03:55:18.292 INFO [stderr]    |         ^^^^^^^^^
Dec 12 03:55:18.292 INFO [stderr] 
Dec 12 03:55:18.292 INFO [stderr] warning: field is never used: `stack`
Dec 12 03:55:18.292 INFO [stderr]  --> src/interpreter.rs:5:5
Dec 12 03:55:18.292 INFO [stderr]   |
Dec 12 03:55:18.292 INFO [stderr] 5 |     stack     : Vec<i32>,
Dec 12 03:55:18.292 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 03:55:18.292 INFO [stderr] 
Dec 12 03:55:18.334 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Dec 12 03:55:18.337 INFO [stderr] su: No module specific data is present
Dec 12 03:55:19.014 INFO running `"docker" "inspect" "38ea9e86fd586c8208c6e12f277cb638da3811343281b3f4b3178b23f354c5de"`
Dec 12 03:55:19.248 INFO running `"docker" "rm" "-f" "38ea9e86fd586c8208c6e12f277cb638da3811343281b3f4b3178b23f354c5de"`
Dec 12 03:55:19.556 INFO [stdout] 38ea9e86fd586c8208c6e12f277cb638da3811343281b3f4b3178b23f354c5de