Dec 19 09:04:55.840 INFO checking semrov/ProteusCompiler against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 09:04:55.841 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/semrov/ProteusCompiler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 09:04:56.366 INFO [stdout] 6d7a1adf0d5c364a626edbcf2816bc8d0a8ac27338a8bbb2077bdfe4f2237cec
Dec 19 09:04:56.368 INFO running `"docker" "start" "-a" "6d7a1adf0d5c364a626edbcf2816bc8d0a8ac27338a8bbb2077bdfe4f2237cec"`
Dec 19 09:04:58.281 INFO [stderr]     Checking proteus_compiler v0.1.0 (/opt/crater/workdir)
Dec 19 09:04:58.616 INFO [stderr] warning: unused import: `abstree::visitor::Visitor`
Dec 19 09:04:58.616 INFO [stderr]  --> src/synanal/run.rs:6:5
Dec 19 09:04:58.616 INFO [stderr]   |
Dec 19 09:04:58.616 INFO [stderr] 6 | use abstree::visitor::Visitor;
Dec 19 09:04:58.616 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.616 INFO [stderr]   |
Dec 19 09:04:58.616 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 09:04:58.616 INFO [stderr] 
Dec 19 09:04:58.616 INFO [stderr] warning: unused import: `lexanal::position::Position`
Dec 19 09:04:58.616 INFO [stderr]   --> src/synanal/mod.rs:10:5
Dec 19 09:04:58.616 INFO [stderr]    |
Dec 19 09:04:58.616 INFO [stderr] 10 | use lexanal::position::Position;
Dec 19 09:04:58.616 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.616 INFO [stderr] 
Dec 19 09:04:58.616 INFO [stderr] warning: unused import: `abstree::abs_position::AbsPosition`
Dec 19 09:04:58.616 INFO [stderr]   --> src/synanal/mod.rs:15:5
Dec 19 09:04:58.616 INFO [stderr]    |
Dec 19 09:04:58.616 INFO [stderr] 15 | use abstree::abs_position::AbsPosition;
Dec 19 09:04:58.616 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.616 INFO [stderr] 
Dec 19 09:04:58.616 INFO [stderr] warning: unused import: `abstree::positioner::Positioner`
Dec 19 09:04:58.616 INFO [stderr]   --> src/synanal/mod.rs:18:5
Dec 19 09:04:58.616 INFO [stderr]    |
Dec 19 09:04:58.616 INFO [stderr] 18 | use abstree::positioner::Positioner;
Dec 19 09:04:58.616 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.616 INFO [stderr] 
Dec 19 09:04:58.616 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 19 09:04:58.616 INFO [stderr]  --> src/abstree/positioner.rs:2:5
Dec 19 09:04:58.616 INFO [stderr]   |
Dec 19 09:04:58.616 INFO [stderr] 2 | use lexanal::symbol::Symbol;
Dec 19 09:04:58.616 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.616 INFO [stderr] 
Dec 19 09:04:58.616 INFO [stderr] warning: unused import: `abstree::AbsTree`
Dec 19 09:04:58.616 INFO [stderr]  --> src/abstree/positioner.rs:3:5
Dec 19 09:04:58.616 INFO [stderr]   |
Dec 19 09:04:58.616 INFO [stderr] 3 | use abstree::AbsTree;
Dec 19 09:04:58.616 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 19 09:04:58.616 INFO [stderr] 
Dec 19 09:04:58.616 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 19 09:04:58.616 INFO [stderr]  --> src/abstree/abs_position.rs:3:5
Dec 19 09:04:58.616 INFO [stderr]   |
Dec 19 09:04:58.616 INFO [stderr] 3 | use lexanal::symbol::Symbol;
Dec 19 09:04:58.616 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.616 INFO [stderr] 
Dec 19 09:04:58.616 INFO [stderr] warning: unused import: `abstree::AbsTree`
Dec 19 09:04:58.616 INFO [stderr]  --> src/abstree/abs_position.rs:4:5
Dec 19 09:04:58.616 INFO [stderr]   |
Dec 19 09:04:58.617 INFO [stderr] 4 | use abstree::AbsTree;
Dec 19 09:04:58.617 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 19 09:04:58.617 INFO [stderr] 
Dec 19 09:04:58.617 INFO [stderr] warning: unused import: `AbsDecl`
Dec 19 09:04:58.617 INFO [stderr]  --> src/abstree/abs_expr.rs:3:25
Dec 19 09:04:58.617 INFO [stderr]   |
Dec 19 09:04:58.617 INFO [stderr] 3 | use abstree::abs_decl::{AbsDecl,AbsDecls};
Dec 19 09:04:58.617 INFO [stderr]   |                         ^^^^^^^
Dec 19 09:04:58.617 INFO [stderr] 
Dec 19 09:04:58.617 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 19 09:04:58.617 INFO [stderr]  --> src/abstree/abs_stmt.rs:7:5
Dec 19 09:04:58.617 INFO [stderr]   |
Dec 19 09:04:58.617 INFO [stderr] 7 | use lexanal::symbol::Symbol;
Dec 19 09:04:58.617 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.617 INFO [stderr] 
Dec 19 09:04:58.620 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 19 09:04:58.620 INFO [stderr]  --> src/abstree/abs_decl.rs:7:5
Dec 19 09:04:58.620 INFO [stderr]   |
Dec 19 09:04:58.620 INFO [stderr] 7 | use lexanal::symbol::Symbol;
Dec 19 09:04:58.620 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.620 INFO [stderr] 
Dec 19 09:04:58.620 INFO [stderr] warning: unused import: `lexanal::position::Position`
Dec 19 09:04:58.620 INFO [stderr]   --> src/abstree/print_xml.rs:10:5
Dec 19 09:04:58.620 INFO [stderr]    |
Dec 19 09:04:58.620 INFO [stderr] 10 | use lexanal::position::Position;
Dec 19 09:04:58.620 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.620 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `abstree::visitor::Visitor`
Dec 19 09:04:58.822 INFO [stderr]  --> src/synanal/run.rs:6:5
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr] 6 | use abstree::visitor::Visitor;
Dec 19 09:04:58.822 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `lexanal::position::Position`
Dec 19 09:04:58.822 INFO [stderr]   --> src/synanal/mod.rs:10:5
Dec 19 09:04:58.822 INFO [stderr]    |
Dec 19 09:04:58.822 INFO [stderr] 10 | use lexanal::position::Position;
Dec 19 09:04:58.822 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `abstree::abs_position::AbsPosition`
Dec 19 09:04:58.822 INFO [stderr]   --> src/synanal/mod.rs:15:5
Dec 19 09:04:58.822 INFO [stderr]    |
Dec 19 09:04:58.822 INFO [stderr] 15 | use abstree::abs_position::AbsPosition;
Dec 19 09:04:58.822 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `abstree::positioner::Positioner`
Dec 19 09:04:58.822 INFO [stderr]   --> src/synanal/mod.rs:18:5
Dec 19 09:04:58.822 INFO [stderr]    |
Dec 19 09:04:58.822 INFO [stderr] 18 | use abstree::positioner::Positioner;
Dec 19 09:04:58.822 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 19 09:04:58.822 INFO [stderr]  --> src/abstree/positioner.rs:2:5
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr] 2 | use lexanal::symbol::Symbol;
Dec 19 09:04:58.822 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `abstree::AbsTree`
Dec 19 09:04:58.822 INFO [stderr]  --> src/abstree/positioner.rs:3:5
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr] 3 | use abstree::AbsTree;
Dec 19 09:04:58.822 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 19 09:04:58.822 INFO [stderr]  --> src/abstree/abs_position.rs:3:5
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr] 3 | use lexanal::symbol::Symbol;
Dec 19 09:04:58.822 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `abstree::AbsTree`
Dec 19 09:04:58.822 INFO [stderr]  --> src/abstree/abs_position.rs:4:5
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr] 4 | use abstree::AbsTree;
Dec 19 09:04:58.822 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `AbsDecl`
Dec 19 09:04:58.822 INFO [stderr]  --> src/abstree/abs_expr.rs:3:25
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr] 3 | use abstree::abs_decl::{AbsDecl,AbsDecls};
Dec 19 09:04:58.822 INFO [stderr]   |                         ^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 19 09:04:58.822 INFO [stderr]  --> src/abstree/abs_stmt.rs:7:5
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr] 7 | use lexanal::symbol::Symbol;
Dec 19 09:04:58.822 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.822 INFO [stderr] warning: unused import: `lexanal::symbol::Symbol`
Dec 19 09:04:58.822 INFO [stderr]  --> src/abstree/abs_decl.rs:7:5
Dec 19 09:04:58.822 INFO [stderr]   |
Dec 19 09:04:58.822 INFO [stderr] 7 | use lexanal::symbol::Symbol;
Dec 19 09:04:58.822 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.822 INFO [stderr] 
Dec 19 09:04:58.823 INFO [stderr] warning: unused import: `lexanal::position::Position`
Dec 19 09:04:58.823 INFO [stderr]   --> src/abstree/print_xml.rs:10:5
Dec 19 09:04:58.823 INFO [stderr]    |
Dec 19 09:04:58.823 INFO [stderr] 10 | use lexanal::position::Position;
Dec 19 09:04:58.823 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:58.823 INFO [stderr] 
Dec 19 09:04:59.229 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 09:04:59.229 INFO [stderr]   --> src/synanal/parse_error.rs:95:59
Dec 19 09:04:59.229 INFO [stderr]    |
Dec 19 09:04:59.229 INFO [stderr] 95 |             ParseError::SyntaxError(ref synerr) => synerr.cause(),
Dec 19 09:04:59.229 INFO [stderr]    |                                                           ^^^^^
Dec 19 09:04:59.229 INFO [stderr]    |
Dec 19 09:04:59.229 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 09:04:59.229 INFO [stderr] 
Dec 19 09:04:59.229 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 09:04:59.229 INFO [stderr]   --> src/synanal/parse_error.rs:96:49
Dec 19 09:04:59.229 INFO [stderr]    |
Dec 19 09:04:59.229 INFO [stderr] 96 |             ParseError::IoError(ref ioe) => ioe.cause(),
Dec 19 09:04:59.229 INFO [stderr]    |                                                 ^^^^^
Dec 19 09:04:59.229 INFO [stderr] 
Dec 19 09:04:59.396 INFO [stderr] warning: unused variable: `fun_symbol`
Dec 19 09:04:59.396 INFO [stderr]    --> src/synanal/mod.rs:744:13
Dec 19 09:04:59.396 INFO [stderr]     |
Dec 19 09:04:59.396 INFO [stderr] 744 |         let fun_symbol = self.skip(Token::FUN)?;
Dec 19 09:04:59.396 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_fun_symbol` instead
Dec 19 09:04:59.396 INFO [stderr]     |
Dec 19 09:04:59.396 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 09:04:59.396 INFO [stderr] 
Dec 19 09:04:59.396 INFO [stderr] warning: unused variable: `var_symbol`
Dec 19 09:04:59.396 INFO [stderr]    --> src/synanal/mod.rs:803:13
Dec 19 09:04:59.396 INFO [stderr]     |
Dec 19 09:04:59.396 INFO [stderr] 803 |         let var_symbol = self.skip(Token::VAR)?;
Dec 19 09:04:59.396 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_var_symbol` instead
Dec 19 09:04:59.396 INFO [stderr] 
Dec 19 09:04:59.508 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 09:04:59.509 INFO [stderr]   --> src/synanal/parse_error.rs:95:59
Dec 19 09:04:59.509 INFO [stderr]    |
Dec 19 09:04:59.509 INFO [stderr] 95 |             ParseError::SyntaxError(ref synerr) => synerr.cause(),
Dec 19 09:04:59.509 INFO [stderr]    |                                                           ^^^^^
Dec 19 09:04:59.509 INFO [stderr]    |
Dec 19 09:04:59.509 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 09:04:59.509 INFO [stderr] 
Dec 19 09:04:59.516 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 09:04:59.516 INFO [stderr]   --> src/synanal/parse_error.rs:96:49
Dec 19 09:04:59.516 INFO [stderr]    |
Dec 19 09:04:59.516 INFO [stderr] 96 |             ParseError::IoError(ref ioe) => ioe.cause(),
Dec 19 09:04:59.516 INFO [stderr]    |                                                 ^^^^^
Dec 19 09:04:59.516 INFO [stderr] 
Dec 19 09:04:59.588 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:04:59.589 INFO [stderr]   --> src/synanal/run.rs:14:9
Dec 19 09:04:59.589 INFO [stderr]    |
Dec 19 09:04:59.589 INFO [stderr] 14 |     let mut abstree_xml_creator : ProteusXmlCreator = match ProteusXmlCreator::open(String::from_str("abstree").unwrap()) {
Dec 19 09:04:59.589 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:59.589 INFO [stderr]    |         |
Dec 19 09:04:59.589 INFO [stderr]    |         help: remove this `mut`
Dec 19 09:04:59.589 INFO [stderr]    |
Dec 19 09:04:59.589 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 09:04:59.589 INFO [stderr] 
Dec 19 09:04:59.589 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:04:59.589 INFO [stderr]   --> src/synanal/run.rs:22:9
Dec 19 09:04:59.589 INFO [stderr]    |
Dec 19 09:04:59.589 INFO [stderr] 22 |     let mut lexical_analyser = match LexicalAnalyzer::new(program_name) 
Dec 19 09:04:59.589 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^
Dec 19 09:04:59.589 INFO [stderr]    |         |
Dec 19 09:04:59.589 INFO [stderr]    |         help: remove this `mut`
Dec 19 09:04:59.589 INFO [stderr] 
Dec 19 09:04:59.716 INFO [stderr] warning: unused variable: `fun_symbol`
Dec 19 09:04:59.716 INFO [stderr]    --> src/synanal/mod.rs:744:13
Dec 19 09:04:59.716 INFO [stderr]     |
Dec 19 09:04:59.716 INFO [stderr] 744 |         let fun_symbol = self.skip(Token::FUN)?;
Dec 19 09:04:59.716 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_fun_symbol` instead
Dec 19 09:04:59.716 INFO [stderr]     |
Dec 19 09:04:59.716 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 09:04:59.716 INFO [stderr] 
Dec 19 09:04:59.716 INFO [stderr] warning: unused variable: `var_symbol`
Dec 19 09:04:59.716 INFO [stderr]    --> src/synanal/mod.rs:803:13
Dec 19 09:04:59.716 INFO [stderr]     |
Dec 19 09:04:59.716 INFO [stderr] 803 |         let var_symbol = self.skip(Token::VAR)?;
Dec 19 09:04:59.716 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_var_symbol` instead
Dec 19 09:04:59.716 INFO [stderr] 
Dec 19 09:04:59.920 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:04:59.920 INFO [stderr]   --> src/synanal/run.rs:14:9
Dec 19 09:04:59.920 INFO [stderr]    |
Dec 19 09:04:59.920 INFO [stderr] 14 |     let mut abstree_xml_creator : ProteusXmlCreator = match ProteusXmlCreator::open(String::from_str("abstree").unwrap()) {
Dec 19 09:04:59.920 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^^^^
Dec 19 09:04:59.920 INFO [stderr]    |         |
Dec 19 09:04:59.920 INFO [stderr]    |         help: remove this `mut`
Dec 19 09:04:59.920 INFO [stderr]    |
Dec 19 09:04:59.920 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 09:04:59.920 INFO [stderr] 
Dec 19 09:04:59.924 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:04:59.924 INFO [stderr]   --> src/synanal/run.rs:22:9
Dec 19 09:04:59.924 INFO [stderr]    |
Dec 19 09:04:59.924 INFO [stderr] 22 |     let mut lexical_analyser = match LexicalAnalyzer::new(program_name) 
Dec 19 09:04:59.924 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^
Dec 19 09:04:59.924 INFO [stderr]    |         |
Dec 19 09:04:59.924 INFO [stderr]    |         help: remove this `mut`
Dec 19 09:04:59.924 INFO [stderr] 
Dec 19 09:05:00.069 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
Dec 19 09:05:01.451 INFO running `"docker" "inspect" "6d7a1adf0d5c364a626edbcf2816bc8d0a8ac27338a8bbb2077bdfe4f2237cec"`
Dec 19 09:05:01.800 INFO running `"docker" "rm" "-f" "6d7a1adf0d5c364a626edbcf2816bc8d0a8ac27338a8bbb2077bdfe4f2237cec"`
Dec 19 09:05:02.092 INFO [stdout] 6d7a1adf0d5c364a626edbcf2816bc8d0a8ac27338a8bbb2077bdfe4f2237cec