Sep 10 05:24:31.362 INFO checking Lapz/tox against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 05:24:31.362 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 05:24:31.362 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 05:24:31.613 INFO blam! b8f7a4d588c8320c9e8c94d4b0d36e4b6dbef4738bdd97a68533197c90a98067
Sep 10 05:24:31.614 INFO running `"docker" "start" "-a" "b8f7a4d588c8320c9e8c94d4b0d36e4b6dbef4738bdd97a68533197c90a98067"`
Sep 10 05:24:33.749 INFO kablam! usermod: no changes
Sep 10 05:24:33.946 INFO kablam!     Checking util v0.1.0 (file:///source/util)
Sep 10 05:24:33.950 INFO kablam!     Checking pretty_assertions v0.4.1
Sep 10 05:24:33.954 INFO kablam!     Checking clap v2.30.0
Sep 10 05:24:33.954 INFO kablam!    Compiling structopt-derive v0.1.6
Sep 10 05:24:35.664 INFO kablam!     Checking syntax v0.1.0 (file:///source/syntax)
Sep 10 05:24:36.759 INFO kablam! warning: unused `#[macro_use]` import
Sep 10 05:24:36.759 INFO kablam!  --> syntax/src/lib.rs:2:1
Sep 10 05:24:36.759 INFO kablam!   |
Sep 10 05:24:36.759 INFO kablam! 2 | #[macro_use]
Sep 10 05:24:36.759 INFO kablam!   | ^^^^^^^^^^^^
Sep 10 05:24:36.768 INFO kablam!   |
Sep 10 05:24:36.768 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 05:24:36.768 INFO kablam! 
Sep 10 05:24:38.549 INFO kablam!     Checking vm v0.1.0 (file:///source/vm)
Sep 10 05:24:38.549 INFO kablam!     Checking interpreter v0.1.0 (file:///source/interpreter)
Sep 10 05:24:38.549 INFO kablam!     Checking frontend v0.1.0 (file:///source/frontend)
Sep 10 05:24:39.233 INFO kablam! warning: unused `#[macro_use]` import
Sep 10 05:24:39.233 INFO kablam!  --> frontend/src/lib.rs:7:1
Sep 10 05:24:39.233 INFO kablam!   |
Sep 10 05:24:39.233 INFO kablam! 7 | #[macro_use]
Sep 10 05:24:39.233 INFO kablam!   | ^^^^^^^^^^^^
Sep 10 05:24:39.233 INFO kablam!   |
Sep 10 05:24:39.233 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 05:24:39.233 INFO kablam! 
Sep 10 05:24:39.233 INFO kablam! warning: unused import: `std::rc::Rc`
Sep 10 05:24:39.233 INFO kablam!  --> frontend/src/env.rs:4:5
Sep 10 05:24:39.233 INFO kablam!   |
Sep 10 05:24:39.233 INFO kablam! 4 | use std::rc::Rc;
Sep 10 05:24:39.233 INFO kablam!   |     ^^^^^^^^^^^
Sep 10 05:24:39.233 INFO kablam! 
Sep 10 05:24:39.233 INFO kablam! warning: unused imports: `SymbolFactory`, `Symbol`, `Symbols`
Sep 10 05:24:39.233 INFO kablam!  --> frontend/src/env.rs:6:20
Sep 10 05:24:39.233 INFO kablam!   |
Sep 10 05:24:39.233 INFO kablam! 6 | use util::symbol::{Symbol, SymbolFactory, Symbols};
Sep 10 05:24:39.233 INFO kablam!   |                    ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^
Sep 10 05:24:39.233 INFO kablam! 
Sep 10 05:24:39.233 INFO kablam! warning: unused import: `util::Unique`
Sep 10 05:24:39.233 INFO kablam!  --> frontend/src/env.rs:7:5
Sep 10 05:24:39.233 INFO kablam!   |
Sep 10 05:24:39.233 INFO kablam! 7 | use util::Unique;
Sep 10 05:24:39.233 INFO kablam!   |     ^^^^^^^^^^^^
Sep 10 05:24:39.233 INFO kablam! 
Sep 10 05:24:39.297 INFO kablam! warning: unused import: `syntax::ast::expr::*`
Sep 10 05:24:39.297 INFO kablam!  --> vm/src/compiler.rs:4:5
Sep 10 05:24:39.297 INFO kablam!   |
Sep 10 05:24:39.297 INFO kablam! 4 | use syntax::ast::expr::*;
Sep 10 05:24:39.297 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:39.310 INFO kablam!   |
Sep 10 05:24:39.310 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 05:24:39.310 INFO kablam! 
Sep 10 05:24:39.310 INFO kablam! warning: unused import: `syntax::ast::statement::Statement`
Sep 10 05:24:39.310 INFO kablam!  --> vm/src/compiler.rs:5:5
Sep 10 05:24:39.310 INFO kablam!   |
Sep 10 05:24:39.310 INFO kablam! 5 | use syntax::ast::statement::Statement;
Sep 10 05:24:39.310 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:39.310 INFO kablam! 
Sep 10 05:24:39.319 INFO kablam! warning: unused import: `syntax::ast::expr::*`
Sep 10 05:24:39.320 INFO kablam!  --> vm/src/compiler.rs:4:5
Sep 10 05:24:39.320 INFO kablam!   |
Sep 10 05:24:39.320 INFO kablam! 4 | use syntax::ast::expr::*;
Sep 10 05:24:39.320 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:39.320 INFO kablam!   |
Sep 10 05:24:39.320 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 05:24:39.320 INFO kablam! 
Sep 10 05:24:39.320 INFO kablam! warning: unused import: `syntax::ast::statement::Statement`
Sep 10 05:24:39.320 INFO kablam!  --> vm/src/compiler.rs:5:5
Sep 10 05:24:39.320 INFO kablam!   |
Sep 10 05:24:39.320 INFO kablam! 5 | use syntax::ast::statement::Statement;
Sep 10 05:24:39.320 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:39.330 INFO kablam! 
Sep 10 05:24:39.819 INFO kablam! warning: unused `#[macro_use]` import
Sep 10 05:24:39.819 INFO kablam!  --> frontend/src/lib.rs:7:1
Sep 10 05:24:39.819 INFO kablam!   |
Sep 10 05:24:39.819 INFO kablam! 7 | #[macro_use]
Sep 10 05:24:39.819 INFO kablam!   | ^^^^^^^^^^^^
Sep 10 05:24:39.819 INFO kablam!   |
Sep 10 05:24:39.819 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 05:24:39.819 INFO kablam! 
Sep 10 05:24:39.819 INFO kablam! warning: unused import: `std::rc::Rc`
Sep 10 05:24:39.819 INFO kablam!  --> frontend/src/env.rs:4:5
Sep 10 05:24:39.819 INFO kablam!   |
Sep 10 05:24:39.819 INFO kablam! 4 | use std::rc::Rc;
Sep 10 05:24:39.819 INFO kablam!   |     ^^^^^^^^^^^
Sep 10 05:24:39.819 INFO kablam! 
Sep 10 05:24:39.819 INFO kablam! warning: unused imports: `SymbolFactory`, `Symbol`, `Symbols`
Sep 10 05:24:39.819 INFO kablam!  --> frontend/src/env.rs:6:20
Sep 10 05:24:39.819 INFO kablam!   |
Sep 10 05:24:39.819 INFO kablam! 6 | use util::symbol::{Symbol, SymbolFactory, Symbols};
Sep 10 05:24:39.819 INFO kablam!   |                    ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^
Sep 10 05:24:39.819 INFO kablam! 
Sep 10 05:24:39.819 INFO kablam! warning: unused import: `util::Unique`
Sep 10 05:24:39.820 INFO kablam!  --> frontend/src/env.rs:7:5
Sep 10 05:24:39.820 INFO kablam!   |
Sep 10 05:24:39.820 INFO kablam! 7 | use util::Unique;
Sep 10 05:24:39.820 INFO kablam!   |     ^^^^^^^^^^^^
Sep 10 05:24:39.820 INFO kablam! 
Sep 10 05:24:40.214 INFO kablam! warning: unused variable: `entry`
Sep 10 05:24:40.214 INFO kablam!   --> frontend/src/infer/mod.rs:56:37
Sep 10 05:24:40.214 INFO kablam!    |
Sep 10 05:24:40.214 INFO kablam! 56 |                     if let Some(mut entry) = ctx.look_type(sclass.value) {}
Sep 10 05:24:40.214 INFO kablam!    |                                     ^^^^^ help: consider using `_entry` instead
Sep 10 05:24:40.214 INFO kablam!    |
Sep 10 05:24:40.214 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 10 05:24:40.214 INFO kablam! 
Sep 10 05:24:40.658 INFO kablam! warning: struct is never constructed: `Compiler`
Sep 10 05:24:40.658 INFO kablam!  --> vm/src/compiler.rs:8:1
Sep 10 05:24:40.658 INFO kablam!   |
Sep 10 05:24:40.658 INFO kablam! 8 | struct Compiler {
Sep 10 05:24:40.658 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 10 05:24:40.658 INFO kablam!   |
Sep 10 05:24:40.658 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 05:24:40.658 INFO kablam! 
Sep 10 05:24:40.658 INFO kablam! warning: method is never used: `new`
Sep 10 05:24:40.658 INFO kablam!   --> vm/src/compiler.rs:14:5
Sep 10 05:24:40.658 INFO kablam!    |
Sep 10 05:24:40.658 INFO kablam! 14 |     pub fn new() -> Self {
Sep 10 05:24:40.658 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:40.658 INFO kablam! 
Sep 10 05:24:40.658 INFO kablam! warning: method is never used: `build_op`
Sep 10 05:24:40.658 INFO kablam!   --> vm/src/compiler.rs:21:5
Sep 10 05:24:40.658 INFO kablam!    |
Sep 10 05:24:40.658 INFO kablam! 21 |     fn build_op(&mut self, op: OpCode) {
Sep 10 05:24:40.658 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:40.658 INFO kablam! 
Sep 10 05:24:40.781 INFO kablam! warning: unused variable: `entry`
Sep 10 05:24:40.781 INFO kablam!   --> frontend/src/infer/mod.rs:56:37
Sep 10 05:24:40.781 INFO kablam!    |
Sep 10 05:24:40.781 INFO kablam! 56 |                     if let Some(mut entry) = ctx.look_type(sclass.value) {}
Sep 10 05:24:40.781 INFO kablam!    |                                     ^^^^^ help: consider using `_entry` instead
Sep 10 05:24:40.781 INFO kablam!    |
Sep 10 05:24:40.781 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 10 05:24:40.781 INFO kablam! 
Sep 10 05:24:40.912 INFO kablam! warning: function is never used: `built_in_trim`
Sep 10 05:24:40.912 INFO kablam!   --> interpreter/src/builtins.rs:91:1
Sep 10 05:24:40.912 INFO kablam!    |
Sep 10 05:24:40.912 INFO kablam! 91 | fn built_in_trim(arguments: &[Object]) -> Result<Object, RuntimeError> {
Sep 10 05:24:40.912 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:40.912 INFO kablam!    |
Sep 10 05:24:40.912 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 05:24:40.912 INFO kablam! 
Sep 10 05:24:41.044 INFO kablam! warning: struct is never constructed: `Compiler`
Sep 10 05:24:41.044 INFO kablam!  --> vm/src/compiler.rs:8:1
Sep 10 05:24:41.044 INFO kablam!   |
Sep 10 05:24:41.044 INFO kablam! 8 | struct Compiler {
Sep 10 05:24:41.044 INFO kablam!   | ^^^^^^^^^^^^^^^
Sep 10 05:24:41.044 INFO kablam!   |
Sep 10 05:24:41.044 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 05:24:41.044 INFO kablam! 
Sep 10 05:24:41.044 INFO kablam! warning: method is never used: `new`
Sep 10 05:24:41.044 INFO kablam!   --> vm/src/compiler.rs:14:5
Sep 10 05:24:41.044 INFO kablam!    |
Sep 10 05:24:41.044 INFO kablam! 14 |     pub fn new() -> Self {
Sep 10 05:24:41.044 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:41.044 INFO kablam! 
Sep 10 05:24:41.054 INFO kablam! warning: method is never used: `build_op`
Sep 10 05:24:41.054 INFO kablam!   --> vm/src/compiler.rs:21:5
Sep 10 05:24:41.054 INFO kablam!    |
Sep 10 05:24:41.054 INFO kablam! 21 |     fn build_op(&mut self, op: OpCode) {
Sep 10 05:24:41.054 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:41.054 INFO kablam! 
Sep 10 05:24:41.451 INFO kablam! warning: function is never used: `built_in_trim`
Sep 10 05:24:41.451 INFO kablam!   --> interpreter/src/builtins.rs:91:1
Sep 10 05:24:41.451 INFO kablam!    |
Sep 10 05:24:41.451 INFO kablam! 91 | fn built_in_trim(arguments: &[Object]) -> Result<Object, RuntimeError> {
Sep 10 05:24:41.451 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 05:24:41.451 INFO kablam!    |
Sep 10 05:24:41.451 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 05:24:41.451 INFO kablam! 
Sep 10 05:24:45.006 INFO kablam!     Checking structopt v0.1.7
Sep 10 05:24:45.208 INFO kablam!     Checking tox v0.2.0 (file:///source/tox)
Sep 10 05:24:45.510 INFO kablam! warning: unused variable: `ast`
Sep 10 05:24:45.510 INFO kablam!   --> tox/src/main.rs:64:13
Sep 10 05:24:45.510 INFO kablam!    |
Sep 10 05:24:45.510 INFO kablam! 64 |         let ast = match Parser::new(tokens, reporter.clone(), &mut symbols).parse() {
Sep 10 05:24:45.510 INFO kablam!    |             ^^^ help: consider using `_ast` instead
Sep 10 05:24:45.510 INFO kablam!    |
Sep 10 05:24:45.510 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 10 05:24:45.510 INFO kablam! 
Sep 10 05:24:45.510 INFO kablam! warning: unused variable: `penv`
Sep 10 05:24:45.510 INFO kablam!    --> tox/src/main.rs:104:55
Sep 10 05:24:45.510 INFO kablam!     |
Sep 10 05:24:45.510 INFO kablam! 104 | pub fn run(path: String, ptokens: bool, pprint: bool, penv: bool, past: bool) {
Sep 10 05:24:45.510 INFO kablam!     |                                                       ^^^^ help: consider using `_penv` instead
Sep 10 05:24:45.510 INFO kablam! 
Sep 10 05:24:45.518 INFO kablam! warning: unused variable: `ast`
Sep 10 05:24:45.518 INFO kablam!   --> tox/src/main.rs:64:13
Sep 10 05:24:45.518 INFO kablam!    |
Sep 10 05:24:45.518 INFO kablam! 64 |         let ast = match Parser::new(tokens, reporter.clone(), &mut symbols).parse() {
Sep 10 05:24:45.518 INFO kablam!    |             ^^^ help: consider using `_ast` instead
Sep 10 05:24:45.518 INFO kablam!    |
Sep 10 05:24:45.518 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 10 05:24:45.518 INFO kablam! 
Sep 10 05:24:45.518 INFO kablam! warning: unused variable: `penv`
Sep 10 05:24:45.518 INFO kablam!    --> tox/src/main.rs:104:55
Sep 10 05:24:45.518 INFO kablam!     |
Sep 10 05:24:45.518 INFO kablam! 104 | pub fn run(path: String, ptokens: bool, pprint: bool, penv: bool, past: bool) {
Sep 10 05:24:45.518 INFO kablam!     |                                                       ^^^^ help: consider using `_penv` instead
Sep 10 05:24:45.518 INFO kablam! 
Sep 10 05:24:45.571 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.80s
Sep 10 05:24:45.582 INFO kablam! su: No module specific data is present
Sep 10 05:24:46.406 INFO running `"docker" "rm" "-f" "b8f7a4d588c8320c9e8c94d4b0d36e4b6dbef4738bdd97a68533197c90a98067"`
Sep 10 05:24:46.527 INFO blam! b8f7a4d588c8320c9e8c94d4b0d36e4b6dbef4738bdd97a68533197c90a98067