Sep 01 00:30:00.202 INFO checking Lapz/tox against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 00:30:00.202 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 00:30:00.202 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 00:30:00.387 INFO blam! f2fa3ca261cf1174905cfba44793dd65fa9c2880224e97802529f6ab9bdc155f
Sep 01 00:30:00.389 INFO running `"docker" "start" "-a" "f2fa3ca261cf1174905cfba44793dd65fa9c2880224e97802529f6ab9bdc155f"`
Sep 01 00:30:01.099 INFO kablam!     Checking util v0.1.0 (file:///source/util)
Sep 01 00:30:01.099 INFO kablam!     Checking pretty_assertions v0.4.1
Sep 01 00:30:01.100 INFO kablam!    Compiling structopt-derive v0.1.6
Sep 01 00:30:01.100 INFO kablam!     Checking structopt v0.1.7
Sep 01 00:30:02.045 INFO kablam!     Checking syntax v0.1.0 (file:///source/syntax)
Sep 01 00:30:02.595 INFO kablam! warning: unused `#[macro_use]` import
Sep 01 00:30:02.595 INFO kablam!  --> syntax/src/lib.rs:2:1
Sep 01 00:30:02.595 INFO kablam!   |
Sep 01 00:30:02.595 INFO kablam! 2 | #[macro_use]
Sep 01 00:30:02.595 INFO kablam!   | ^^^^^^^^^^^^
Sep 01 00:30:02.595 INFO kablam!   |
Sep 01 00:30:02.595 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 00:30:02.595 INFO kablam! 
Sep 01 00:30:05.053 INFO kablam!     Checking interpreter v0.1.0 (file:///source/interpreter)
Sep 01 00:30:05.056 INFO kablam!     Checking frontend v0.1.0 (file:///source/frontend)
Sep 01 00:30:05.060 INFO kablam!     Checking vm v0.1.0 (file:///source/vm)
Sep 01 00:30:05.770 INFO kablam! warning: unused import: `syntax::ast::expr::*`
Sep 01 00:30:05.770 INFO kablam!  --> vm/src/compiler.rs:4:5
Sep 01 00:30:05.770 INFO kablam!   |
Sep 01 00:30:05.770 INFO kablam! 4 | use syntax::ast::expr::*;
Sep 01 00:30:05.770 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:05.770 INFO kablam!   |
Sep 01 00:30:05.770 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 00:30:05.770 INFO kablam! 
Sep 01 00:30:05.770 INFO kablam! warning: unused import: `syntax::ast::statement::Statement`
Sep 01 00:30:05.770 INFO kablam!  --> vm/src/compiler.rs:5:5
Sep 01 00:30:05.770 INFO kablam!   |
Sep 01 00:30:05.770 INFO kablam! 5 | use syntax::ast::statement::Statement;
Sep 01 00:30:05.770 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:05.770 INFO kablam! 
Sep 01 00:30:05.810 INFO kablam! warning: unused import: `syntax::ast::expr::*`
Sep 01 00:30:05.810 INFO kablam!  --> vm/src/compiler.rs:4:5
Sep 01 00:30:05.810 INFO kablam!   |
Sep 01 00:30:05.810 INFO kablam! 4 | use syntax::ast::expr::*;
Sep 01 00:30:05.810 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:05.810 INFO kablam!   |
Sep 01 00:30:05.810 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 00:30:05.810 INFO kablam! 
Sep 01 00:30:05.811 INFO kablam! warning: unused import: `syntax::ast::statement::Statement`
Sep 01 00:30:05.811 INFO kablam!  --> vm/src/compiler.rs:5:5
Sep 01 00:30:05.811 INFO kablam!   |
Sep 01 00:30:05.811 INFO kablam! 5 | use syntax::ast::statement::Statement;
Sep 01 00:30:05.811 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:05.811 INFO kablam! 
Sep 01 00:30:06.244 INFO kablam! warning: unused `#[macro_use]` import
Sep 01 00:30:06.244 INFO kablam!  --> frontend/src/lib.rs:7:1
Sep 01 00:30:06.244 INFO kablam!   |
Sep 01 00:30:06.244 INFO kablam! 7 | #[macro_use]
Sep 01 00:30:06.244 INFO kablam!   | ^^^^^^^^^^^^
Sep 01 00:30:06.244 INFO kablam!   |
Sep 01 00:30:06.244 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 00:30:06.244 INFO kablam! 
Sep 01 00:30:06.245 INFO kablam! warning: unused import: `std::rc::Rc`
Sep 01 00:30:06.245 INFO kablam!  --> frontend/src/env.rs:4:5
Sep 01 00:30:06.245 INFO kablam!   |
Sep 01 00:30:06.245 INFO kablam! 4 | use std::rc::Rc;
Sep 01 00:30:06.245 INFO kablam!   |     ^^^^^^^^^^^
Sep 01 00:30:06.245 INFO kablam! 
Sep 01 00:30:06.246 INFO kablam! warning: unused imports: `SymbolFactory`, `Symbol`, `Symbols`
Sep 01 00:30:06.246 INFO kablam!  --> frontend/src/env.rs:6:20
Sep 01 00:30:06.246 INFO kablam!   |
Sep 01 00:30:06.246 INFO kablam! 6 | use util::symbol::{Symbol, SymbolFactory, Symbols};
Sep 01 00:30:06.246 INFO kablam!   |                    ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^
Sep 01 00:30:06.246 INFO kablam! 
Sep 01 00:30:06.246 INFO kablam! warning: unused import: `util::Unique`
Sep 01 00:30:06.246 INFO kablam!  --> frontend/src/env.rs:7:5
Sep 01 00:30:06.246 INFO kablam!   |
Sep 01 00:30:06.246 INFO kablam! 7 | use util::Unique;
Sep 01 00:30:06.246 INFO kablam!   |     ^^^^^^^^^^^^
Sep 01 00:30:06.246 INFO kablam! 
Sep 01 00:30:06.602 INFO kablam! warning: unused `#[macro_use]` import
Sep 01 00:30:06.602 INFO kablam!  --> frontend/src/lib.rs:7:1
Sep 01 00:30:06.602 INFO kablam!   |
Sep 01 00:30:06.602 INFO kablam! 7 | #[macro_use]
Sep 01 00:30:06.602 INFO kablam!   | ^^^^^^^^^^^^
Sep 01 00:30:06.602 INFO kablam!   |
Sep 01 00:30:06.602 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 01 00:30:06.602 INFO kablam! 
Sep 01 00:30:06.602 INFO kablam! warning: unused import: `std::rc::Rc`
Sep 01 00:30:06.602 INFO kablam!  --> frontend/src/env.rs:4:5
Sep 01 00:30:06.603 INFO kablam!   |
Sep 01 00:30:06.603 INFO kablam! 4 | use std::rc::Rc;
Sep 01 00:30:06.603 INFO kablam!   |     ^^^^^^^^^^^
Sep 01 00:30:06.603 INFO kablam! 
Sep 01 00:30:06.603 INFO kablam! warning: unused imports: `SymbolFactory`, `Symbol`, `Symbols`
Sep 01 00:30:06.603 INFO kablam!  --> frontend/src/env.rs:6:20
Sep 01 00:30:06.603 INFO kablam!   |
Sep 01 00:30:06.603 INFO kablam! 6 | use util::symbol::{Symbol, SymbolFactory, Symbols};
Sep 01 00:30:06.603 INFO kablam!   |                    ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^
Sep 01 00:30:06.603 INFO kablam! 
Sep 01 00:30:06.603 INFO kablam! warning: unused import: `util::Unique`
Sep 01 00:30:06.603 INFO kablam!  --> frontend/src/env.rs:7:5
Sep 01 00:30:06.603 INFO kablam!   |
Sep 01 00:30:06.603 INFO kablam! 7 | use util::Unique;
Sep 01 00:30:06.603 INFO kablam!   |     ^^^^^^^^^^^^
Sep 01 00:30:06.603 INFO kablam! 
Sep 01 00:30:06.769 INFO kablam! warning: struct is never constructed: `Compiler`
Sep 01 00:30:06.769 INFO kablam!  --> vm/src/compiler.rs:8:1
Sep 01 00:30:06.769 INFO kablam!   |
Sep 01 00:30:06.769 INFO kablam! 8 | struct Compiler {
Sep 01 00:30:06.769 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 01 00:30:06.769 INFO kablam!   |
Sep 01 00:30:06.769 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 01 00:30:06.769 INFO kablam! 
Sep 01 00:30:06.769 INFO kablam! warning: method is never used: `new`
Sep 01 00:30:06.769 INFO kablam!   --> vm/src/compiler.rs:14:5
Sep 01 00:30:06.769 INFO kablam!    |
Sep 01 00:30:06.769 INFO kablam! 14 |     pub fn new() -> Self {
Sep 01 00:30:06.769 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:06.769 INFO kablam! 
Sep 01 00:30:06.769 INFO kablam! warning: method is never used: `build_op`
Sep 01 00:30:06.769 INFO kablam!   --> vm/src/compiler.rs:21:5
Sep 01 00:30:06.769 INFO kablam!    |
Sep 01 00:30:06.769 INFO kablam! 21 |     fn build_op(&mut self, op: OpCode) {
Sep 01 00:30:06.769 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:06.769 INFO kablam! 
Sep 01 00:30:06.834 INFO kablam! warning: struct is never constructed: `Compiler`
Sep 01 00:30:06.834 INFO kablam!  --> vm/src/compiler.rs:8:1
Sep 01 00:30:06.834 INFO kablam!   |
Sep 01 00:30:06.834 INFO kablam! 8 | struct Compiler {
Sep 01 00:30:06.835 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 01 00:30:06.835 INFO kablam!   |
Sep 01 00:30:06.835 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 01 00:30:06.835 INFO kablam! 
Sep 01 00:30:06.835 INFO kablam! warning: method is never used: `new`
Sep 01 00:30:06.835 INFO kablam!   --> vm/src/compiler.rs:14:5
Sep 01 00:30:06.835 INFO kablam!    |
Sep 01 00:30:06.835 INFO kablam! 14 |     pub fn new() -> Self {
Sep 01 00:30:06.835 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:06.835 INFO kablam! 
Sep 01 00:30:06.835 INFO kablam! warning: method is never used: `build_op`
Sep 01 00:30:06.835 INFO kablam!   --> vm/src/compiler.rs:21:5
Sep 01 00:30:06.835 INFO kablam!    |
Sep 01 00:30:06.835 INFO kablam! 21 |     fn build_op(&mut self, op: OpCode) {
Sep 01 00:30:06.835 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:06.835 INFO kablam! 
Sep 01 00:30:06.957 INFO kablam! warning: function is never used: `built_in_trim`
Sep 01 00:30:06.957 INFO kablam!   --> interpreter/src/builtins.rs:91:1
Sep 01 00:30:06.958 INFO kablam!    |
Sep 01 00:30:06.958 INFO kablam! 91 | fn built_in_trim(arguments: &[Object]) -> Result<Object, RuntimeError> {
Sep 01 00:30:06.958 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:06.958 INFO kablam!    |
Sep 01 00:30:06.958 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 01 00:30:06.959 INFO kablam! 
Sep 01 00:30:07.496 INFO kablam! warning: function is never used: `built_in_trim`
Sep 01 00:30:07.496 INFO kablam!   --> interpreter/src/builtins.rs:91:1
Sep 01 00:30:07.496 INFO kablam!    |
Sep 01 00:30:07.496 INFO kablam! 91 | fn built_in_trim(arguments: &[Object]) -> Result<Object, RuntimeError> {
Sep 01 00:30:07.497 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 00:30:07.497 INFO kablam!    |
Sep 01 00:30:07.497 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 01 00:30:07.497 INFO kablam! 
Sep 01 00:30:07.562 INFO kablam! warning: unused variable: `entry`
Sep 01 00:30:07.562 INFO kablam!   --> frontend/src/infer/mod.rs:56:37
Sep 01 00:30:07.562 INFO kablam!    |
Sep 01 00:30:07.562 INFO kablam! 56 |                     if let Some(mut entry) = ctx.look_type(sclass.value) {}
Sep 01 00:30:07.562 INFO kablam!    |                                     ^^^^^ help: consider using `_entry` instead
Sep 01 00:30:07.562 INFO kablam!    |
Sep 01 00:30:07.562 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 01 00:30:07.562 INFO kablam! 
Sep 01 00:30:07.785 INFO kablam! warning: unused variable: `entry`
Sep 01 00:30:07.785 INFO kablam!   --> frontend/src/infer/mod.rs:56:37
Sep 01 00:30:07.785 INFO kablam!    |
Sep 01 00:30:07.785 INFO kablam! 56 |                     if let Some(mut entry) = ctx.look_type(sclass.value) {}
Sep 01 00:30:07.785 INFO kablam!    |                                     ^^^^^ help: consider using `_entry` instead
Sep 01 00:30:07.785 INFO kablam!    |
Sep 01 00:30:07.785 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 01 00:30:07.785 INFO kablam! 
Sep 01 00:30:08.058 INFO kablam!     Checking tox v0.2.0 (file:///source/tox)
Sep 01 00:30:08.940 INFO kablam! warning: unused variable: `ast`
Sep 01 00:30:08.940 INFO kablam!   --> tox/src/main.rs:64:13
Sep 01 00:30:08.940 INFO kablam!    |
Sep 01 00:30:08.940 INFO kablam! 64 |         let ast = match Parser::new(tokens, reporter.clone(), &mut symbols).parse() {
Sep 01 00:30:08.940 INFO kablam!    |             ^^^ help: consider using `_ast` instead
Sep 01 00:30:08.940 INFO kablam!    |
Sep 01 00:30:08.940 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 01 00:30:08.940 INFO kablam! 
Sep 01 00:30:08.940 INFO kablam! warning: unused variable: `penv`
Sep 01 00:30:08.940 INFO kablam!    --> tox/src/main.rs:104:55
Sep 01 00:30:08.940 INFO kablam!     |
Sep 01 00:30:08.940 INFO kablam! 104 | pub fn run(path: String, ptokens: bool, pprint: bool, penv: bool, past: bool) {
Sep 01 00:30:08.940 INFO kablam!     |                                                       ^^^^ help: consider using `_penv` instead
Sep 01 00:30:08.941 INFO kablam! 
Sep 01 00:30:09.091 INFO kablam! warning: unused variable: `ast`
Sep 01 00:30:09.092 INFO kablam!   --> tox/src/main.rs:64:13
Sep 01 00:30:09.092 INFO kablam!    |
Sep 01 00:30:09.092 INFO kablam! 64 |         let ast = match Parser::new(tokens, reporter.clone(), &mut symbols).parse() {
Sep 01 00:30:09.092 INFO kablam!    |             ^^^ help: consider using `_ast` instead
Sep 01 00:30:09.092 INFO kablam!    |
Sep 01 00:30:09.092 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 01 00:30:09.092 INFO kablam! 
Sep 01 00:30:09.092 INFO kablam! warning: unused variable: `penv`
Sep 01 00:30:09.092 INFO kablam!    --> tox/src/main.rs:104:55
Sep 01 00:30:09.092 INFO kablam!     |
Sep 01 00:30:09.093 INFO kablam! 104 | pub fn run(path: String, ptokens: bool, pprint: bool, penv: bool, past: bool) {
Sep 01 00:30:09.093 INFO kablam!     |                                                       ^^^^ help: consider using `_penv` instead
Sep 01 00:30:09.093 INFO kablam! 
Sep 01 00:30:09.164 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.22s
Sep 01 00:30:09.183 INFO kablam! su: No module specific data is present
Sep 01 00:30:09.650 INFO running `"docker" "rm" "-f" "f2fa3ca261cf1174905cfba44793dd65fa9c2880224e97802529f6ab9bdc155f"`
Sep 01 00:30:09.771 INFO blam! f2fa3ca261cf1174905cfba44793dd65fa9c2880224e97802529f6ab9bdc155f