Dec 11 09:47:02.711 INFO checking semrov/ProteusCompiler against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 09:47:02.711 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 09:47:03.348 INFO [stdout] 8614f4f2910f5c776113fb5507f98aa95828772cbbd3c934605db4e6f44e77de
Dec 11 09:47:03.354 INFO running `"docker" "start" "-a" "8614f4f2910f5c776113fb5507f98aa95828772cbbd3c934605db4e6f44e77de"`
Dec 11 09:47:04.820 INFO [stderr] usermod: no changes
Dec 11 09:47:04.864 INFO [stderr]     Checking proteus_compiler v0.1.0 (/source)
Dec 11 09:47:05.512 INFO [stderr] warning: unused import: `abstree::visitor::Visitor`
Dec 11 09:47:05.512 INFO [stderr]  --> src/synanal/run.rs:6:5
Dec 11 09:47:05.512 INFO [stderr]   |
Dec 11 09:47:05.512 INFO [stderr] 6 | use abstree::visitor::Visitor;
Dec 11 09:47:05.512 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.512 INFO [stderr]   |
Dec 11 09:47:05.512 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 09:47:05.512 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `lexanal::position::Position`
Dec 11 09:47:05.513 INFO [stderr]   --> src/synanal/mod.rs:10:5
Dec 11 09:47:05.513 INFO [stderr]    |
Dec 11 09:47:05.513 INFO [stderr] 10 | use lexanal::position::Position;
Dec 11 09:47:05.513 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `abstree::abs_position::AbsPosition`
Dec 11 09:47:05.513 INFO [stderr]   --> src/synanal/mod.rs:15:5
Dec 11 09:47:05.513 INFO [stderr]    |
Dec 11 09:47:05.513 INFO [stderr] 15 | use abstree::abs_position::AbsPosition;
Dec 11 09:47:05.513 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `abstree::positioner::Positioner`
Dec 11 09:47:05.513 INFO [stderr]   --> src/synanal/mod.rs:18:5
Dec 11 09:47:05.513 INFO [stderr]    |
Dec 11 09:47:05.513 INFO [stderr] 18 | use abstree::positioner::Positioner;
Dec 11 09:47:05.513 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 11 09:47:05.513 INFO [stderr]  --> src/abstree/positioner.rs:2:5
Dec 11 09:47:05.513 INFO [stderr]   |
Dec 11 09:47:05.513 INFO [stderr] 2 | use lexanal::symbol::Symbol;
Dec 11 09:47:05.513 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `abstree::AbsTree`
Dec 11 09:47:05.513 INFO [stderr]  --> src/abstree/positioner.rs:3:5
Dec 11 09:47:05.513 INFO [stderr]   |
Dec 11 09:47:05.513 INFO [stderr] 3 | use abstree::AbsTree;
Dec 11 09:47:05.513 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 11 09:47:05.513 INFO [stderr]  --> src/abstree/abs_position.rs:3:5
Dec 11 09:47:05.513 INFO [stderr]   |
Dec 11 09:47:05.513 INFO [stderr] 3 | use lexanal::symbol::Symbol;
Dec 11 09:47:05.513 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `abstree::AbsTree`
Dec 11 09:47:05.513 INFO [stderr]  --> src/abstree/abs_position.rs:4:5
Dec 11 09:47:05.513 INFO [stderr]   |
Dec 11 09:47:05.513 INFO [stderr] 4 | use abstree::AbsTree;
Dec 11 09:47:05.513 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `AbsDecl`
Dec 11 09:47:05.513 INFO [stderr]  --> src/abstree/abs_expr.rs:3:25
Dec 11 09:47:05.513 INFO [stderr]   |
Dec 11 09:47:05.513 INFO [stderr] 3 | use abstree::abs_decl::{AbsDecl,AbsDecls};
Dec 11 09:47:05.513 INFO [stderr]   |                         ^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 11 09:47:05.513 INFO [stderr]  --> src/abstree/abs_stmt.rs:7:5
Dec 11 09:47:05.513 INFO [stderr]   |
Dec 11 09:47:05.513 INFO [stderr] 7 | use lexanal::symbol::Symbol;
Dec 11 09:47:05.513 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 11 09:47:05.513 INFO [stderr]  --> src/abstree/abs_decl.rs:7:5
Dec 11 09:47:05.513 INFO [stderr]   |
Dec 11 09:47:05.513 INFO [stderr] 7 | use lexanal::symbol::Symbol;
Dec 11 09:47:05.513 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.513 INFO [stderr] warning: unused import: `lexanal::position::Position`
Dec 11 09:47:05.513 INFO [stderr]   --> src/abstree/print_xml.rs:10:5
Dec 11 09:47:05.513 INFO [stderr]    |
Dec 11 09:47:05.513 INFO [stderr] 10 | use lexanal::position::Position;
Dec 11 09:47:05.513 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.513 INFO [stderr] 
Dec 11 09:47:05.705 INFO [stderr] warning: unused import: `abstree::visitor::Visitor`
Dec 11 09:47:05.705 INFO [stderr]  --> src/synanal/run.rs:6:5
Dec 11 09:47:05.705 INFO [stderr]   |
Dec 11 09:47:05.705 INFO [stderr] 6 | use abstree::visitor::Visitor;
Dec 11 09:47:05.705 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.705 INFO [stderr]   |
Dec 11 09:47:05.705 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 09:47:05.705 INFO [stderr] 
Dec 11 09:47:05.705 INFO [stderr] warning: unused import: `lexanal::position::Position`
Dec 11 09:47:05.705 INFO [stderr]   --> src/synanal/mod.rs:10:5
Dec 11 09:47:05.706 INFO [stderr]    |
Dec 11 09:47:05.706 INFO [stderr] 10 | use lexanal::position::Position;
Dec 11 09:47:05.706 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.706 INFO [stderr] 
Dec 11 09:47:05.706 INFO [stderr] warning: unused import: `abstree::abs_position::AbsPosition`
Dec 11 09:47:05.706 INFO [stderr]   --> src/synanal/mod.rs:15:5
Dec 11 09:47:05.706 INFO [stderr]    |
Dec 11 09:47:05.706 INFO [stderr] 15 | use abstree::abs_position::AbsPosition;
Dec 11 09:47:05.706 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.706 INFO [stderr] 
Dec 11 09:47:05.706 INFO [stderr] warning: unused import: `abstree::positioner::Positioner`
Dec 11 09:47:05.706 INFO [stderr]   --> src/synanal/mod.rs:18:5
Dec 11 09:47:05.706 INFO [stderr]    |
Dec 11 09:47:05.706 INFO [stderr] 18 | use abstree::positioner::Positioner;
Dec 11 09:47:05.706 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.706 INFO [stderr] 
Dec 11 09:47:05.707 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 11 09:47:05.707 INFO [stderr]  --> src/abstree/positioner.rs:2:5
Dec 11 09:47:05.707 INFO [stderr]   |
Dec 11 09:47:05.707 INFO [stderr] 2 | use lexanal::symbol::Symbol;
Dec 11 09:47:05.707 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.707 INFO [stderr] 
Dec 11 09:47:05.712 INFO [stderr] warning: unused import: `abstree::AbsTree`
Dec 11 09:47:05.712 INFO [stderr]  --> src/abstree/positioner.rs:3:5
Dec 11 09:47:05.712 INFO [stderr]   |
Dec 11 09:47:05.712 INFO [stderr] 3 | use abstree::AbsTree;
Dec 11 09:47:05.712 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 11 09:47:05.712 INFO [stderr] 
Dec 11 09:47:05.712 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 11 09:47:05.712 INFO [stderr]  --> src/abstree/abs_position.rs:3:5
Dec 11 09:47:05.712 INFO [stderr]   |
Dec 11 09:47:05.712 INFO [stderr] 3 | use lexanal::symbol::Symbol;
Dec 11 09:47:05.712 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.712 INFO [stderr] 
Dec 11 09:47:05.712 INFO [stderr] warning: unused import: `abstree::AbsTree`
Dec 11 09:47:05.713 INFO [stderr]  --> src/abstree/abs_position.rs:4:5
Dec 11 09:47:05.713 INFO [stderr]   |
Dec 11 09:47:05.713 INFO [stderr] 4 | use abstree::AbsTree;
Dec 11 09:47:05.713 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 11 09:47:05.713 INFO [stderr] 
Dec 11 09:47:05.713 INFO [stderr] warning: unused import: `AbsDecl`
Dec 11 09:47:05.713 INFO [stderr]  --> src/abstree/abs_expr.rs:3:25
Dec 11 09:47:05.713 INFO [stderr]   |
Dec 11 09:47:05.713 INFO [stderr] 3 | use abstree::abs_decl::{AbsDecl,AbsDecls};
Dec 11 09:47:05.713 INFO [stderr]   |                         ^^^^^^^
Dec 11 09:47:05.713 INFO [stderr] 
Dec 11 09:47:05.713 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 11 09:47:05.713 INFO [stderr]  --> src/abstree/abs_stmt.rs:7:5
Dec 11 09:47:05.713 INFO [stderr]   |
Dec 11 09:47:05.713 INFO [stderr] 7 | use lexanal::symbol::Symbol;
Dec 11 09:47:05.713 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.713 INFO [stderr] 
Dec 11 09:47:05.713 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 11 09:47:05.713 INFO [stderr]  --> src/abstree/abs_decl.rs:7:5
Dec 11 09:47:05.713 INFO [stderr]   |
Dec 11 09:47:05.713 INFO [stderr] 7 | use lexanal::symbol::Symbol;
Dec 11 09:47:05.713 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.713 INFO [stderr] 
Dec 11 09:47:05.713 INFO [stderr] warning: unused import: `lexanal::position::Position`
Dec 11 09:47:05.713 INFO [stderr]   --> src/abstree/print_xml.rs:10:5
Dec 11 09:47:05.713 INFO [stderr]    |
Dec 11 09:47:05.713 INFO [stderr] 10 | use lexanal::position::Position;
Dec 11 09:47:05.713 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:05.713 INFO [stderr] 
Dec 11 09:47:06.252 INFO [stderr] warning: unused variable: `fun_symbol`
Dec 11 09:47:06.252 INFO [stderr]    --> src/synanal/mod.rs:744:13
Dec 11 09:47:06.252 INFO [stderr]     |
Dec 11 09:47:06.252 INFO [stderr] 744 |         let fun_symbol = self.skip(Token::FUN)?;
Dec 11 09:47:06.252 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_fun_symbol` instead
Dec 11 09:47:06.252 INFO [stderr]     |
Dec 11 09:47:06.252 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 09:47:06.252 INFO [stderr] 
Dec 11 09:47:06.253 INFO [stderr] warning: unused variable: `var_symbol`
Dec 11 09:47:06.253 INFO [stderr]    --> src/synanal/mod.rs:803:13
Dec 11 09:47:06.253 INFO [stderr]     |
Dec 11 09:47:06.253 INFO [stderr] 803 |         let var_symbol = self.skip(Token::VAR)?;
Dec 11 09:47:06.253 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_var_symbol` instead
Dec 11 09:47:06.253 INFO [stderr] 
Dec 11 09:47:06.462 INFO [stderr] warning: variable does not need to be mutable
Dec 11 09:47:06.462 INFO [stderr]   --> src/synanal/run.rs:14:9
Dec 11 09:47:06.462 INFO [stderr]    |
Dec 11 09:47:06.463 INFO [stderr] 14 |     let mut abstree_xml_creator : ProteusXmlCreator = match ProteusXmlCreator::open(String::from_str("abstree").unwrap()) {
Dec 11 09:47:06.463 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:06.463 INFO [stderr]    |         |
Dec 11 09:47:06.463 INFO [stderr]    |         help: remove this `mut`
Dec 11 09:47:06.464 INFO [stderr]    |
Dec 11 09:47:06.464 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 09:47:06.464 INFO [stderr] 
Dec 11 09:47:06.464 INFO [stderr] warning: variable does not need to be mutable
Dec 11 09:47:06.465 INFO [stderr]   --> src/synanal/run.rs:22:9
Dec 11 09:47:06.465 INFO [stderr]    |
Dec 11 09:47:06.465 INFO [stderr] 22 |     let mut lexical_analyser = match LexicalAnalyzer::new(program_name) 
Dec 11 09:47:06.466 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^
Dec 11 09:47:06.466 INFO [stderr]    |         |
Dec 11 09:47:06.466 INFO [stderr]    |         help: remove this `mut`
Dec 11 09:47:06.466 INFO [stderr] 
Dec 11 09:47:06.736 INFO [stderr] warning: unused variable: `fun_symbol`
Dec 11 09:47:06.736 INFO [stderr]    --> src/synanal/mod.rs:744:13
Dec 11 09:47:06.736 INFO [stderr]     |
Dec 11 09:47:06.736 INFO [stderr] 744 |         let fun_symbol = self.skip(Token::FUN)?;
Dec 11 09:47:06.736 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_fun_symbol` instead
Dec 11 09:47:06.736 INFO [stderr]     |
Dec 11 09:47:06.736 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 09:47:06.736 INFO [stderr] 
Dec 11 09:47:06.736 INFO [stderr] warning: unused variable: `var_symbol`
Dec 11 09:47:06.736 INFO [stderr]    --> src/synanal/mod.rs:803:13
Dec 11 09:47:06.736 INFO [stderr]     |
Dec 11 09:47:06.736 INFO [stderr] 803 |         let var_symbol = self.skip(Token::VAR)?;
Dec 11 09:47:06.736 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_var_symbol` instead
Dec 11 09:47:06.736 INFO [stderr] 
Dec 11 09:47:06.910 INFO [stderr] warning: variable does not need to be mutable
Dec 11 09:47:06.910 INFO [stderr]   --> src/synanal/run.rs:14:9
Dec 11 09:47:06.910 INFO [stderr]    |
Dec 11 09:47:06.910 INFO [stderr] 14 |     let mut abstree_xml_creator : ProteusXmlCreator = match ProteusXmlCreator::open(String::from_str("abstree").unwrap()) {
Dec 11 09:47:06.910 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^^^^
Dec 11 09:47:06.910 INFO [stderr]    |         |
Dec 11 09:47:06.910 INFO [stderr]    |         help: remove this `mut`
Dec 11 09:47:06.910 INFO [stderr]    |
Dec 11 09:47:06.911 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 09:47:06.911 INFO [stderr] 
Dec 11 09:47:06.911 INFO [stderr] warning: variable does not need to be mutable
Dec 11 09:47:06.911 INFO [stderr]   --> src/synanal/run.rs:22:9
Dec 11 09:47:06.911 INFO [stderr]    |
Dec 11 09:47:06.911 INFO [stderr] 22 |     let mut lexical_analyser = match LexicalAnalyzer::new(program_name) 
Dec 11 09:47:06.911 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^
Dec 11 09:47:06.911 INFO [stderr]    |         |
Dec 11 09:47:06.911 INFO [stderr]    |         help: remove this `mut`
Dec 11 09:47:06.911 INFO [stderr] 
Dec 11 09:47:07.081 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.24s
Dec 11 09:47:07.085 INFO [stderr] su: No module specific data is present
Dec 11 09:47:08.670 INFO running `"docker" "inspect" "8614f4f2910f5c776113fb5507f98aa95828772cbbd3c934605db4e6f44e77de"`
Dec 11 09:47:08.978 INFO running `"docker" "rm" "-f" "8614f4f2910f5c776113fb5507f98aa95828772cbbd3c934605db4e6f44e77de"`
Dec 11 09:47:09.364 INFO [stdout] 8614f4f2910f5c776113fb5507f98aa95828772cbbd3c934605db4e6f44e77de