Oct 13 03:51:56.518 INFO checking Lapz/tox against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 03:51:56.520 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 03:51:57.138 INFO blam! 34fe067db5ea6d8ac667f5ecd5667d42a95766b84faecadf0135498bb2e721de
Oct 13 03:51:57.140 INFO running `"docker" "start" "-a" "34fe067db5ea6d8ac667f5ecd5667d42a95766b84faecadf0135498bb2e721de"`
Oct 13 03:51:59.219 INFO kablam! usermod: no changes
Oct 13 03:51:59.404 INFO kablam!     Checking util v0.1.0 (/source/util)
Oct 13 03:51:59.408 INFO kablam!     Checking pretty_assertions v0.4.1
Oct 13 03:51:59.408 INFO kablam!     Checking structopt v0.1.7
Oct 13 03:52:01.844 INFO kablam!     Checking syntax v0.1.0 (/source/syntax)
Oct 13 03:52:03.192 INFO kablam! warning: unused `#[macro_use]` import
Oct 13 03:52:03.192 INFO kablam!  --> syntax/src/lib.rs:2:1
Oct 13 03:52:03.192 INFO kablam!   |
Oct 13 03:52:03.192 INFO kablam! 2 | #[macro_use]
Oct 13 03:52:03.192 INFO kablam!   | ^^^^^^^^^^^^
Oct 13 03:52:03.192 INFO kablam!   |
Oct 13 03:52:03.192 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:52:03.192 INFO kablam! 
Oct 13 03:52:04.648 INFO kablam!     Checking vm v0.1.0 (/source/vm)
Oct 13 03:52:04.648 INFO kablam!     Checking frontend v0.1.0 (/source/frontend)
Oct 13 03:52:04.648 INFO kablam!     Checking interpreter v0.1.0 (/source/interpreter)
Oct 13 03:52:06.776 INFO kablam! warning: unused import: `syntax::ast::expr::*`
Oct 13 03:52:06.776 INFO kablam!  --> vm/src/compiler.rs:4:5
Oct 13 03:52:06.776 INFO kablam!   |
Oct 13 03:52:06.776 INFO kablam! 4 | use syntax::ast::expr::*;
Oct 13 03:52:06.776 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:06.776 INFO kablam!   |
Oct 13 03:52:06.776 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:52:06.778 INFO kablam! 
Oct 13 03:52:06.778 INFO kablam! warning: unused import: `syntax::ast::statement::Statement`
Oct 13 03:52:06.778 INFO kablam!  --> vm/src/compiler.rs:5:5
Oct 13 03:52:06.778 INFO kablam!   |
Oct 13 03:52:06.778 INFO kablam! 5 | use syntax::ast::statement::Statement;
Oct 13 03:52:06.778 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:06.778 INFO kablam! 
Oct 13 03:52:06.936 INFO kablam! warning: unused import: `syntax::ast::expr::*`
Oct 13 03:52:06.936 INFO kablam!  --> vm/src/compiler.rs:4:5
Oct 13 03:52:06.936 INFO kablam!   |
Oct 13 03:52:06.936 INFO kablam! 4 | use syntax::ast::expr::*;
Oct 13 03:52:06.936 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:06.936 INFO kablam!   |
Oct 13 03:52:06.936 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:52:06.936 INFO kablam! 
Oct 13 03:52:06.936 INFO kablam! warning: unused import: `syntax::ast::statement::Statement`
Oct 13 03:52:06.936 INFO kablam!  --> vm/src/compiler.rs:5:5
Oct 13 03:52:06.936 INFO kablam!   |
Oct 13 03:52:06.936 INFO kablam! 5 | use syntax::ast::statement::Statement;
Oct 13 03:52:06.936 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:06.936 INFO kablam! 
Oct 13 03:52:07.249 INFO kablam! warning: unused `#[macro_use]` import
Oct 13 03:52:07.249 INFO kablam!  --> frontend/src/lib.rs:7:1
Oct 13 03:52:07.249 INFO kablam!   |
Oct 13 03:52:07.250 INFO kablam! 7 | #[macro_use]
Oct 13 03:52:07.250 INFO kablam!   | ^^^^^^^^^^^^
Oct 13 03:52:07.250 INFO kablam!   |
Oct 13 03:52:07.254 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:52:07.254 INFO kablam! 
Oct 13 03:52:07.254 INFO kablam! warning: unused import: `std::rc::Rc`
Oct 13 03:52:07.255 INFO kablam!  --> frontend/src/env.rs:4:5
Oct 13 03:52:07.255 INFO kablam!   |
Oct 13 03:52:07.255 INFO kablam! 4 | use std::rc::Rc;
Oct 13 03:52:07.255 INFO kablam!   |     ^^^^^^^^^^^
Oct 13 03:52:07.256 INFO kablam! 
Oct 13 03:52:07.256 INFO kablam! warning: unused imports: `SymbolFactory`, `Symbol`, `Symbols`
Oct 13 03:52:07.256 INFO kablam!  --> frontend/src/env.rs:6:20
Oct 13 03:52:07.257 INFO kablam!   |
Oct 13 03:52:07.257 INFO kablam! 6 | use util::symbol::{Symbol, SymbolFactory, Symbols};
Oct 13 03:52:07.257 INFO kablam!   |                    ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^
Oct 13 03:52:07.258 INFO kablam! 
Oct 13 03:52:07.258 INFO kablam! warning: unused import: `util::Unique`
Oct 13 03:52:07.258 INFO kablam!  --> frontend/src/env.rs:7:5
Oct 13 03:52:07.258 INFO kablam!   |
Oct 13 03:52:07.259 INFO kablam! 7 | use util::Unique;
Oct 13 03:52:07.259 INFO kablam!   |     ^^^^^^^^^^^^
Oct 13 03:52:07.259 INFO kablam! 
Oct 13 03:52:07.480 INFO kablam! warning: struct is never constructed: `Compiler`
Oct 13 03:52:07.481 INFO kablam!  --> vm/src/compiler.rs:8:1
Oct 13 03:52:07.481 INFO kablam!   |
Oct 13 03:52:07.482 INFO kablam! 8 | struct Compiler {
Oct 13 03:52:07.482 INFO kablam!   | ^^^^^^^^^^^^^^^
Oct 13 03:52:07.482 INFO kablam!   |
Oct 13 03:52:07.482 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 13 03:52:07.482 INFO kablam! 
Oct 13 03:52:07.483 INFO kablam! warning: method is never used: `new`
Oct 13 03:52:07.483 INFO kablam!   --> vm/src/compiler.rs:14:5
Oct 13 03:52:07.483 INFO kablam!    |
Oct 13 03:52:07.484 INFO kablam! 14 |     pub fn new() -> Self {
Oct 13 03:52:07.484 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:07.484 INFO kablam! 
Oct 13 03:52:07.484 INFO kablam! warning: method is never used: `build_op`
Oct 13 03:52:07.485 INFO kablam!   --> vm/src/compiler.rs:21:5
Oct 13 03:52:07.485 INFO kablam!    |
Oct 13 03:52:07.485 INFO kablam! 21 |     fn build_op(&mut self, op: OpCode) {
Oct 13 03:52:07.485 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:07.486 INFO kablam! 
Oct 13 03:52:07.672 INFO kablam! warning: unused `#[macro_use]` import
Oct 13 03:52:07.672 INFO kablam!  --> frontend/src/lib.rs:7:1
Oct 13 03:52:07.672 INFO kablam!   |
Oct 13 03:52:07.672 INFO kablam! 7 | #[macro_use]
Oct 13 03:52:07.672 INFO kablam!   | ^^^^^^^^^^^^
Oct 13 03:52:07.696 INFO kablam!   |
Oct 13 03:52:07.696 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 03:52:07.696 INFO kablam! 
Oct 13 03:52:07.696 INFO kablam! warning: unused import: `std::rc::Rc`
Oct 13 03:52:07.696 INFO kablam!  --> frontend/src/env.rs:4:5
Oct 13 03:52:07.696 INFO kablam!   |
Oct 13 03:52:07.696 INFO kablam! 4 | use std::rc::Rc;
Oct 13 03:52:07.696 INFO kablam!   |     ^^^^^^^^^^^
Oct 13 03:52:07.696 INFO kablam! 
Oct 13 03:52:07.696 INFO kablam! warning: unused imports: `SymbolFactory`, `Symbol`, `Symbols`
Oct 13 03:52:07.696 INFO kablam!  --> frontend/src/env.rs:6:20
Oct 13 03:52:07.696 INFO kablam!   |
Oct 13 03:52:07.696 INFO kablam! 6 | use util::symbol::{Symbol, SymbolFactory, Symbols};
Oct 13 03:52:07.696 INFO kablam!   |                    ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^
Oct 13 03:52:07.696 INFO kablam! 
Oct 13 03:52:07.696 INFO kablam! warning: unused import: `util::Unique`
Oct 13 03:52:07.696 INFO kablam!  --> frontend/src/env.rs:7:5
Oct 13 03:52:07.696 INFO kablam!   |
Oct 13 03:52:07.696 INFO kablam! 7 | use util::Unique;
Oct 13 03:52:07.696 INFO kablam!   |     ^^^^^^^^^^^^
Oct 13 03:52:07.697 INFO kablam! 
Oct 13 03:52:07.952 INFO kablam! warning: struct is never constructed: `Compiler`
Oct 13 03:52:07.952 INFO kablam!  --> vm/src/compiler.rs:8:1
Oct 13 03:52:07.952 INFO kablam!   |
Oct 13 03:52:07.952 INFO kablam! 8 | struct Compiler {
Oct 13 03:52:07.952 INFO kablam!   | ^^^^^^^^^^^^^^^
Oct 13 03:52:07.952 INFO kablam!   |
Oct 13 03:52:07.952 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 13 03:52:07.952 INFO kablam! 
Oct 13 03:52:07.952 INFO kablam! warning: method is never used: `new`
Oct 13 03:52:07.952 INFO kablam!   --> vm/src/compiler.rs:14:5
Oct 13 03:52:07.952 INFO kablam!    |
Oct 13 03:52:07.952 INFO kablam! 14 |     pub fn new() -> Self {
Oct 13 03:52:07.952 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:07.952 INFO kablam! 
Oct 13 03:52:07.952 INFO kablam! warning: method is never used: `build_op`
Oct 13 03:52:07.952 INFO kablam!   --> vm/src/compiler.rs:21:5
Oct 13 03:52:07.952 INFO kablam!    |
Oct 13 03:52:07.952 INFO kablam! 21 |     fn build_op(&mut self, op: OpCode) {
Oct 13 03:52:07.952 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:07.952 INFO kablam! 
Oct 13 03:52:08.356 INFO kablam! warning: function is never used: `built_in_trim`
Oct 13 03:52:08.356 INFO kablam!   --> interpreter/src/builtins.rs:91:1
Oct 13 03:52:08.356 INFO kablam!    |
Oct 13 03:52:08.356 INFO kablam! 91 | fn built_in_trim(arguments: &[Object]) -> Result<Object, RuntimeError> {
Oct 13 03:52:08.356 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:08.356 INFO kablam!    |
Oct 13 03:52:08.356 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 03:52:08.356 INFO kablam! 
Oct 13 03:52:08.640 INFO kablam! warning: unused variable: `entry`
Oct 13 03:52:08.640 INFO kablam!   --> frontend/src/infer/mod.rs:56:37
Oct 13 03:52:08.640 INFO kablam!    |
Oct 13 03:52:08.640 INFO kablam! 56 |                     if let Some(mut entry) = ctx.look_type(sclass.value) {}
Oct 13 03:52:08.640 INFO kablam!    |                                     ^^^^^ help: consider using `_entry` instead
Oct 13 03:52:08.640 INFO kablam!    |
Oct 13 03:52:08.640 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 03:52:08.640 INFO kablam! 
Oct 13 03:52:08.760 INFO kablam! warning: unused variable: `entry`
Oct 13 03:52:08.760 INFO kablam!   --> frontend/src/infer/mod.rs:56:37
Oct 13 03:52:08.760 INFO kablam!    |
Oct 13 03:52:08.760 INFO kablam! 56 |                     if let Some(mut entry) = ctx.look_type(sclass.value) {}
Oct 13 03:52:08.760 INFO kablam!    |                                     ^^^^^ help: consider using `_entry` instead
Oct 13 03:52:08.760 INFO kablam!    |
Oct 13 03:52:08.760 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 03:52:08.760 INFO kablam! 
Oct 13 03:52:09.004 INFO kablam! warning: function is never used: `built_in_trim`
Oct 13 03:52:09.004 INFO kablam!   --> interpreter/src/builtins.rs:91:1
Oct 13 03:52:09.004 INFO kablam!    |
Oct 13 03:52:09.004 INFO kablam! 91 | fn built_in_trim(arguments: &[Object]) -> Result<Object, RuntimeError> {
Oct 13 03:52:09.004 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:52:09.004 INFO kablam!    |
Oct 13 03:52:09.004 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 03:52:09.004 INFO kablam! 
Oct 13 03:52:09.076 INFO kablam!     Checking tox v0.2.0 (/source/tox)
Oct 13 03:52:10.688 INFO kablam! warning: unused variable: `ast`
Oct 13 03:52:10.688 INFO kablam!   --> tox/src/main.rs:64:13
Oct 13 03:52:10.688 INFO kablam!    |
Oct 13 03:52:10.688 INFO kablam! 64 |         let ast = match Parser::new(tokens, reporter.clone(), &mut symbols).parse() {
Oct 13 03:52:10.688 INFO kablam!    |             ^^^ help: consider using `_ast` instead
Oct 13 03:52:10.688 INFO kablam!    |
Oct 13 03:52:10.688 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 03:52:10.688 INFO kablam! 
Oct 13 03:52:10.688 INFO kablam! warning: unused variable: `penv`
Oct 13 03:52:10.688 INFO kablam!    --> tox/src/main.rs:104:55
Oct 13 03:52:10.688 INFO kablam!     |
Oct 13 03:52:10.688 INFO kablam! 104 | pub fn run(path: String, ptokens: bool, pprint: bool, penv: bool, past: bool) {
Oct 13 03:52:10.688 INFO kablam!     |                                                       ^^^^ help: consider using `_penv` instead
Oct 13 03:52:10.688 INFO kablam! 
Oct 13 03:52:10.788 INFO kablam! warning: unused variable: `ast`
Oct 13 03:52:10.788 INFO kablam!   --> tox/src/main.rs:64:13
Oct 13 03:52:10.788 INFO kablam!    |
Oct 13 03:52:10.788 INFO kablam! 64 |         let ast = match Parser::new(tokens, reporter.clone(), &mut symbols).parse() {
Oct 13 03:52:10.788 INFO kablam!    |             ^^^ help: consider using `_ast` instead
Oct 13 03:52:10.788 INFO kablam!    |
Oct 13 03:52:10.788 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 03:52:10.788 INFO kablam! 
Oct 13 03:52:10.788 INFO kablam! warning: unused variable: `penv`
Oct 13 03:52:10.788 INFO kablam!    --> tox/src/main.rs:104:55
Oct 13 03:52:10.788 INFO kablam!     |
Oct 13 03:52:10.788 INFO kablam! 104 | pub fn run(path: String, ptokens: bool, pprint: bool, penv: bool, past: bool) {
Oct 13 03:52:10.788 INFO kablam!     |                                                       ^^^^ help: consider using `_penv` instead
Oct 13 03:52:10.788 INFO kablam! 
Oct 13 03:52:10.849 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.60s
Oct 13 03:52:10.900 INFO kablam! su: No module specific data is present
Oct 13 03:52:11.653 INFO running `"docker" "rm" "-f" "34fe067db5ea6d8ac667f5ecd5667d42a95766b84faecadf0135498bb2e721de"`
Oct 13 03:52:12.005 INFO blam! 34fe067db5ea6d8ac667f5ecd5667d42a95766b84faecadf0135498bb2e721de