[INFO] updating cached repository lonnng/lua-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lonnng/lua-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lonnng/lua-rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/lonnng/lua-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/lonnng/lua-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lonnng/lua-rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/lonnng/lua-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/lonnng/lua-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1dfd5b765ecd3296610013cdf7f118ab2ddfcf56
[INFO] sha for GitHub repo lonnng/lua-rs: 1dfd5b765ecd3296610013cdf7f118ab2ddfcf56
[INFO] validating manifest of lonnng/lua-rs on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lonnng/lua-rs on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lonnng/lua-rs
[INFO] finished frobbing lonnng/lua-rs
[INFO] frobbed toml for lonnng/lua-rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/lonnng/lua-rs/Cargo.toml
[INFO] started frobbing lonnng/lua-rs
[INFO] finished frobbing lonnng/lua-rs
[INFO] frobbed toml for lonnng/lua-rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/lonnng/lua-rs/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lonnng/lua-rs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/lonnng/lua-rs:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] caa5d71584871ec5e8fb5777c320415ef7fcb0815142babceb6be4cd1ceb139d
[INFO] running `"docker" "start" "-a" "caa5d71584871ec5e8fb5777c320415ef7fcb0815142babceb6be4cd1ceb139d"`
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking lua v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/scanner.rs:366:25
[INFO] [stderr]     |
[INFO] [stderr] 366 | /                         /// Escape charactors
[INFO] [stderr] 367 | |                         /// \a   U+0007 alert or bell
[INFO] [stderr] 368 | |                         /// \b   U+0008 backspace
[INFO] [stderr] 369 | |                         /// \f   U+000C form feed
[INFO] [stderr] ...   |
[INFO] [stderr] 375 | |                         /// \'   U+0027 single quote  (valid escape only within rune literals)
[INFO] [stderr] 376 | |                         /// \"   U+0022 double quote  (valid escape only within string literals)
[INFO] [stderr]     | |________________________________________________________________________________________________^
[INFO] [stderr] 377 |                           'a' => self.advance_and_save('\u{0007}'),
[INFO] [stderr]     |                           ---------------------------------------- rustdoc does not generate documentation for match arms
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `non_snake_case_globals`
[INFO] [stderr]  --> src/instruction.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![allow(non_snake_case_globals)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `non_upper_case_globals`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/scanner.rs:366:25
[INFO] [stderr]     |
[INFO] [stderr] 366 | /                         /// Escape charactors
[INFO] [stderr] 367 | |                         /// \a   U+0007 alert or bell
[INFO] [stderr] 368 | |                         /// \b   U+0008 backspace
[INFO] [stderr] 369 | |                         /// \f   U+000C form feed
[INFO] [stderr] ...   |
[INFO] [stderr] 375 | |                         /// \'   U+0027 single quote  (valid escape only within rune literals)
[INFO] [stderr] 376 | |                         /// \"   U+0022 double quote  (valid escape only within string literals)
[INFO] [stderr]     | |________________________________________________________________________________________________^
[INFO] [stderr] 377 |                           'a' => self.advance_and_save('\u{0007}'),
[INFO] [stderr]     |                           ---------------------------------------- rustdoc does not generate documentation for match arms
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `non_snake_case_globals`
[INFO] [stderr]  --> src/instruction.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![allow(non_snake_case_globals)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `non_upper_case_globals`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/state.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::{Error, Result};
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/state.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::result`
[INFO] [stderr]  --> src/state.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::result;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::string`
[INFO] [stderr]  --> src/state.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::string;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `state::State`
[INFO] [stderr]  --> src/scanner.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use state::State;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/scanner.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NO_JUMP`
[INFO] [stderr]  --> src/parser.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ::{Error, NO_JUMP, Result};
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `state::State`
[INFO] [stderr]  --> src/parser.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use state::State;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/undump.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ::{Error, Result};
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/undump.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, BufReader, Read};
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/instruction.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/compiler.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ::{Error, Result};
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/compiler.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `replace`
[INFO] [stderr]   --> src/compiler.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::mem::{replace, swap};
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]     --> src/compiler.rs:1025:72
[INFO] [stderr]      |
[INFO] [stderr] 1025 |                 self.code.add_ABC(OP_CONCAT, a as i32, basereg as i32, (basereg as i32 + crange), start_line(expr));
[INFO] [stderr]      |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/state.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::{Error, Result};
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/state.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::result`
[INFO] [stderr]  --> src/state.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::result;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::string`
[INFO] [stderr]  --> src/state.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::string;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `state::State`
[INFO] [stderr]  --> src/scanner.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use state::State;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/scanner.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NO_JUMP`
[INFO] [stderr]  --> src/parser.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ::{Error, NO_JUMP, Result};
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `state::State`
[INFO] [stderr]  --> src/parser.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use state::State;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/undump.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ::{Error, Result};
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/undump.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufRead, BufReader, Read};
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/instruction.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/compiler.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ::{Error, Result};
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/compiler.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `replace`
[INFO] [stderr]   --> src/compiler.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::mem::{replace, swap};
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]     --> src/compiler.rs:1025:72
[INFO] [stderr]      |
[INFO] [stderr] 1025 |                 self.code.add_ABC(OP_CONCAT, a as i32, basereg as i32, (basereg as i32 + crange), start_line(expr));
[INFO] [stderr]      |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:238:9
[INFO] [stderr]     |
[INFO] [stderr] 238 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:238:9
[INFO] [stderr]     |
[INFO] [stderr] 238 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/scanner.rs:578:23
[INFO] [stderr]     |
[INFO] [stderr] 578 |             let r = s.trim_left_matches("0").to_string();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/scanner.rs:578:23
[INFO] [stderr]     |
[INFO] [stderr] 578 |             let r = s.trim_left_matches("0").to_string();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chunk`
[INFO] [stderr]   --> src/state.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let chunk = if magic == 033 {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_chunk`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/parser.rs:345:21
[INFO] [stderr]     |
[INFO] [stderr] 345 |                 let line = self.line_number;
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `jump_false`
[INFO] [stderr]    --> src/parser.rs:499:17
[INFO] [stderr]     |
[INFO] [stderr] 499 |         let mut jump_false = 0;
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_jump_false`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/parser.rs:677:13
[INFO] [stderr]     |
[INFO] [stderr] 677 |         let line = self.line_number;
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]  --> src/undump.rs:5:24
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn undump<T: Read>(reader: BufReader<T>) -> Result<Box<FunctionProto>> {
[INFO] [stderr]   |                        ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:932:21
[INFO] [stderr]     |
[INFO] [stderr] 932 |                     reg += self.compile_expr(reg, expr, expr_ctx);
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:936:21
[INFO] [stderr]     |
[INFO] [stderr] 936 |                     reg += self.compile_expr(reg, expr, &ExprContext::with_opt(0));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sublhs`
[INFO] [stderr]     --> src/compiler.rs:1009:63
[INFO] [stderr]      |
[INFO] [stderr] 1009 |                         Expr::BinaryOp(BinaryOpr::Concat, ref sublhs, ref subrhs) => {
[INFO] [stderr]      |                                                               ^^^^^^ help: consider prefixing with an underscore: `_sublhs`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1019:17
[INFO] [stderr]      |
[INFO] [stderr] 1019 |                 reg += self.compile_expr(reg, rhs, &ExprContext::with_opt(0));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `params`
[INFO] [stderr]     --> src/compiler.rs:1449:39
[INFO] [stderr]      |
[INFO] [stderr] 1449 |             if let Expr::Function(ref params, ref stmts) = values[0].inner() {
[INFO] [stderr]      |                                       ^^^^^^ help: consider prefixing with an underscore: `_params`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stmts`
[INFO] [stderr]     --> src/compiler.rs:1449:51
[INFO] [stderr]      |
[INFO] [stderr] 1449 |             if let Expr::Function(ref params, ref stmts) = values[0].inner() {
[INFO] [stderr]      |                                                   ^^^^^ help: consider prefixing with an underscore: `_stmts`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `endline`
[INFO] [stderr]     --> src/compiler.rs:1570:76
[INFO] [stderr]      |
[INFO] [stderr] 1570 |     fn compile_if_stmt(&mut self, ifelsethen: &IfThenElse, startline: u32, endline: u32) {
[INFO] [stderr]      |                                                                            ^^^^^^^ help: consider prefixing with an underscore: `_endline`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]     --> src/compiler.rs:1674:36
[INFO] [stderr]      |
[INFO] [stderr] 1674 |                 Expr::FuncCall(ref expr) => {
[INFO] [stderr]      |                                    ^^^^ help: consider prefixing with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1675:21
[INFO] [stderr]      |
[INFO] [stderr] 1675 |                     reg += self.compile_expr(reg, &exprs[0], &ExprContext::with_opt(-2));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `endline`
[INFO] [stderr]     --> src/compiler.rs:1660:78
[INFO] [stderr]      |
[INFO] [stderr] 1660 |     fn compile_return_stmt(&mut self, exprs: &Vec<ExprNode>, startline: u32, endline: u32) {
[INFO] [stderr]      |                                                                              ^^^^^^^ help: consider prefixing with an underscore: `_endline`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `codestore`
[INFO] [stderr]     --> src/compiler.rs:1876:17
[INFO] [stderr]      |
[INFO] [stderr] 1876 |         let mut codestore = Instructions::new();
[INFO] [stderr]      |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_codestore`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut reader = BufReader::new(f);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut reader = BufReader::new(cursor);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `chunk`
[INFO] [stderr]   --> src/state.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let chunk = if magic == 033 {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_chunk`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/parser.rs:345:21
[INFO] [stderr]     |
[INFO] [stderr] 345 |                 let line = self.line_number;
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `jump_false`
[INFO] [stderr]    --> src/parser.rs:499:17
[INFO] [stderr]     |
[INFO] [stderr] 499 |         let mut jump_false = 0;
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_jump_false`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/parser.rs:677:13
[INFO] [stderr]     |
[INFO] [stderr] 677 |         let line = self.line_number;
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]  --> src/undump.rs:5:24
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn undump<T: Read>(reader: BufReader<T>) -> Result<Box<FunctionProto>> {
[INFO] [stderr]   |                        ^^^^^^ help: consider prefixing with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:932:21
[INFO] [stderr]     |
[INFO] [stderr] 932 |                     reg += self.compile_expr(reg, expr, expr_ctx);
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:936:21
[INFO] [stderr]     |
[INFO] [stderr] 936 |                     reg += self.compile_expr(reg, expr, &ExprContext::with_opt(0));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sublhs`
[INFO] [stderr]     --> src/compiler.rs:1009:63
[INFO] [stderr]      |
[INFO] [stderr] 1009 |                         Expr::BinaryOp(BinaryOpr::Concat, ref sublhs, ref subrhs) => {
[INFO] [stderr]      |                                                               ^^^^^^ help: consider prefixing with an underscore: `_sublhs`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1019:17
[INFO] [stderr]      |
[INFO] [stderr] 1019 |                 reg += self.compile_expr(reg, rhs, &ExprContext::with_opt(0));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `params`
[INFO] [stderr]     --> src/compiler.rs:1449:39
[INFO] [stderr]      |
[INFO] [stderr] 1449 |             if let Expr::Function(ref params, ref stmts) = values[0].inner() {
[INFO] [stderr]      |                                       ^^^^^^ help: consider prefixing with an underscore: `_params`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stmts`
[INFO] [stderr]     --> src/compiler.rs:1449:51
[INFO] [stderr]      |
[INFO] [stderr] 1449 |             if let Expr::Function(ref params, ref stmts) = values[0].inner() {
[INFO] [stderr]      |                                                   ^^^^^ help: consider prefixing with an underscore: `_stmts`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `endline`
[INFO] [stderr]     --> src/compiler.rs:1570:76
[INFO] [stderr]      |
[INFO] [stderr] 1570 |     fn compile_if_stmt(&mut self, ifelsethen: &IfThenElse, startline: u32, endline: u32) {
[INFO] [stderr]      |                                                                            ^^^^^^^ help: consider prefixing with an underscore: `_endline`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]     --> src/compiler.rs:1674:36
[INFO] [stderr]      |
[INFO] [stderr] 1674 |                 Expr::FuncCall(ref expr) => {
[INFO] [stderr]      |                                    ^^^^ help: consider prefixing with an underscore: `_expr`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1675:21
[INFO] [stderr]      |
[INFO] [stderr] 1675 |                     reg += self.compile_expr(reg, &exprs[0], &ExprContext::with_opt(-2));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `endline`
[INFO] [stderr]     --> src/compiler.rs:1660:78
[INFO] [stderr]      |
[INFO] [stderr] 1660 |     fn compile_return_stmt(&mut self, exprs: &Vec<ExprNode>, startline: u32, endline: u32) {
[INFO] [stderr]      |                                                                              ^^^^^^^ help: consider prefixing with an underscore: `_endline`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `codestore`
[INFO] [stderr]     --> src/compiler.rs:1876:17
[INFO] [stderr]      |
[INFO] [stderr] 1876 |         let mut codestore = Instructions::new();
[INFO] [stderr]      |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_codestore`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut reader = BufReader::new(f);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut reader = BufReader::new(cursor);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scanner.rs:473:17
[INFO] [stderr]     |
[INFO] [stderr] 473 |             let mut cvalue = c as u32;
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scanner.rs:515:49
[INFO] [stderr]     |
[INFO] [stderr] 515 |             let (mut fraction, mut latest_char, mut count) = self.read_hexadecimal(0.0);
[INFO] [stderr]     |                                                 ----^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scanner.rs:473:17
[INFO] [stderr]     |
[INFO] [stderr] 473 |             let mut cvalue = c as u32;
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scanner.rs:515:49
[INFO] [stderr]     |
[INFO] [stderr] 515 |             let (mut fraction, mut latest_char, mut count) = self.read_hexadecimal(0.0);
[INFO] [stderr]     |                                                 ----^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let mut stmt = match self.token {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:271:13
[INFO] [stderr]     |
[INFO] [stderr] 271 |         let mut exprnode = ExprNode::new(Expr::Table(fields), (line, self.prev_number));
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:321:13
[INFO] [stderr]     |
[INFO] [stderr] 321 |         let mut exprnode = ExprNode::new(Expr::Function(parlist, block), (line, self.prev_number));
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |         let mut stmt = match self.token {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:338:13
[INFO] [stderr]     |
[INFO] [stderr] 338 |         let mut expr = match self.token {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:271:13
[INFO] [stderr]     |
[INFO] [stderr] 271 |         let mut exprnode = ExprNode::new(Expr::Table(fields), (line, self.prev_number));
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:379:21
[INFO] [stderr]     |
[INFO] [stderr] 379 |                 let mut expr = ExprNode::new(Expr::String(s.clone()), (line, line));
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:321:13
[INFO] [stderr]     |
[INFO] [stderr] 321 |         let mut exprnode = ExprNode::new(Expr::Function(parlist, block), (line, self.prev_number));
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:338:13
[INFO] [stderr]     |
[INFO] [stderr] 338 |         let mut expr = match self.token {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:405:29
[INFO] [stderr]     |
[INFO] [stderr] 405 |                         let mut key = ExprNode::new(Expr::String(s.clone()), (line, line));
[INFO] [stderr]     |                             ----^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:406:29
[INFO] [stderr]     |
[INFO] [stderr] 406 |                         let mut obj = Expr::AttrGet(Box::new(exprnode), Box::new(key));
[INFO] [stderr]     |                             ----^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:416:25
[INFO] [stderr]     |
[INFO] [stderr] 416 |                     let mut key = self.expression()?;
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:417:25
[INFO] [stderr]     |
[INFO] [stderr] 417 |                     let mut obj = Expr::AttrGet(Box::new(exprnode), Box::new(key));
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:379:21
[INFO] [stderr]     |
[INFO] [stderr] 379 |                 let mut expr = ExprNode::new(Expr::String(s.clone()), (line, line));
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:454:13
[INFO] [stderr]     |
[INFO] [stderr] 454 |         let mut node = match self.token {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:405:29
[INFO] [stderr]     |
[INFO] [stderr] 405 |                         let mut key = ExprNode::new(Expr::String(s.clone()), (line, line));
[INFO] [stderr]     |                             ----^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:406:29
[INFO] [stderr]     |
[INFO] [stderr] 406 |                         let mut obj = Expr::AttrGet(Box::new(exprnode), Box::new(key));
[INFO] [stderr]     |                             ----^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:416:25
[INFO] [stderr]     |
[INFO] [stderr] 416 |                     let mut key = self.expression()?;
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:417:25
[INFO] [stderr]     |
[INFO] [stderr] 417 |                     let mut obj = Expr::AttrGet(Box::new(exprnode), Box::new(key));
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:499:13
[INFO] [stderr]     |
[INFO] [stderr] 499 |         let mut jump_false = 0;
[INFO] [stderr]     |             ----^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:501:13
[INFO] [stderr]     |
[INFO] [stderr] 501 |         let mut condition = self.expression()?;
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:454:13
[INFO] [stderr]     |
[INFO] [stderr] 454 |         let mut node = match self.token {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:499:13
[INFO] [stderr]     |
[INFO] [stderr] 499 |         let mut jump_false = 0;
[INFO] [stderr]     |             ----^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:501:13
[INFO] [stderr]     |
[INFO] [stderr] 501 |         let mut condition = self.expression()?;
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:515:17
[INFO] [stderr]     |
[INFO] [stderr] 515 |             let mut elseif = self.test_then_block()?;
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:515:17
[INFO] [stderr]     |
[INFO] [stderr] 515 |             let mut elseif = self.test_then_block()?;
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:526:13
[INFO] [stderr]     |
[INFO] [stderr] 526 |         for mut elseif in elseifs.into_iter().rev().into_iter() {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:526:13
[INFO] [stderr]     |
[INFO] [stderr] 526 |         for mut elseif in elseifs.into_iter().rev().into_iter() {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:564:13
[INFO] [stderr]     |
[INFO] [stderr] 564 |         let mut step = if self.testnext(&Token::Char(','))? {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr] 
[INFO] [stderr]    --> src/parser.rs:564:13
[INFO] [stderr]     |
[INFO] [stderr] 564 |         let mut step = if self.testnext(&Token::Char(','))? {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:642:21
[INFO] [stderr]     |
[INFO] [stderr] 642 |                 let mut obj = Expr::AttrGet(Box::new(nameexpr), Box::new(key));
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:678:13
[INFO] [stderr]     |
[INFO] [stderr] 678 |         let mut name = if let Token::Ident(ref s) = self.token {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:642:21
[INFO] [stderr]     |
[INFO] [stderr] 642 |                 let mut obj = Expr::AttrGet(Box::new(nameexpr), Box::new(key));
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:678:13
[INFO] [stderr]     |
[INFO] [stderr] 678 |         let mut name = if let Token::Ident(ref s) = self.token {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler.rs:662:13
[INFO] [stderr]     |
[INFO] [stderr] 662 |         let mut cindex = self.const_index(cnst) as i32;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler.rs:666:17
[INFO] [stderr]     |
[INFO] [stderr] 666 |             let mut ret = *reg;
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler.rs:841:43
[INFO] [stderr]     |
[INFO] [stderr] 841 |     fn compile_binary_rel_expr(&mut self, mut reg: usize,
[INFO] [stderr]     |                                           ----^^^
[INFO] [stderr]     |                                           |
[INFO] [stderr]     |                                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler.rs:662:13
[INFO] [stderr]     |
[INFO] [stderr] 662 |         let mut cindex = self.const_index(cnst) as i32;
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler.rs:666:17
[INFO] [stderr]     |
[INFO] [stderr] 666 |             let mut ret = *reg;
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler.rs:948:43
[INFO] [stderr]     |
[INFO] [stderr] 948 |     fn compile_binary_log_expr(&mut self, mut reg: usize,
[INFO] [stderr]     |                                           ----^^^
[INFO] [stderr]     |                                           |
[INFO] [stderr]     |                                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler.rs:841:43
[INFO] [stderr]     |
[INFO] [stderr] 841 |     fn compile_binary_rel_expr(&mut self, mut reg: usize,
[INFO] [stderr]     |                                           ----^^^
[INFO] [stderr]     |                                           |
[INFO] [stderr]     |                                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/compiler.rs:1322:21
[INFO] [stderr]      |
[INFO] [stderr] 1322 |                 let mut expr = ExprNode::new(Expr::Nil, lhs[namesassigned].lineinfo());
[INFO] [stderr]      |                     ----^^^^
[INFO] [stderr]      |                     |
[INFO] [stderr]      |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler.rs:948:43
[INFO] [stderr]     |
[INFO] [stderr] 948 |     fn compile_binary_log_expr(&mut self, mut reg: usize,
[INFO] [stderr]     |                                           ----^^^
[INFO] [stderr]     |                                           |
[INFO] [stderr]     |                                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/compiler.rs:1876:13
[INFO] [stderr]      |
[INFO] [stderr] 1876 |         let mut codestore = Instructions::new();
[INFO] [stderr]      |             ----^^^^^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/compiler.rs:1322:21
[INFO] [stderr]      |
[INFO] [stderr] 1322 |                 let mut expr = ExprNode::new(Expr::Nil, lhs[namesassigned].lineinfo());
[INFO] [stderr]      |                     ----^^^^
[INFO] [stderr]      |                     |
[INFO] [stderr]      |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_arga`
[INFO] [stderr]    --> src/compiler.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     fn set_arga(&mut self, pc: usize, a: i32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_argbx`
[INFO] [stderr]    --> src/compiler.rs:210:5
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn set_argbx(&mut self, pc: usize, bx: i32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_ref_upval`
[INFO] [stderr]    --> src/compiler.rs:396:5
[INFO] [stderr]     |
[INFO] [stderr] 396 |     fn set_ref_upval(&mut self, b: bool) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `startline`
[INFO] [stderr]    --> src/compiler.rs:400:5
[INFO] [stderr]     |
[INFO] [stderr] 400 |     fn startline(&self) -> u32 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]  --> src/value.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Nil,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/value.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Bool(bool),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]  --> src/value.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Function,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UserData`
[INFO] [stderr]  --> src/value.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     UserData,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Thread`
[INFO] [stderr]  --> src/value.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Thread,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Table`
[INFO] [stderr]   --> src/value.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Table,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NO_JUMP`
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const NO_JUMP: isize = -1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/parser.rs:610:9
[INFO] [stderr]     |
[INFO] [stderr] 610 |         self.check_match(Token::End, Token::For, line);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OPCODE_SIZEBx` should have an upper case name
[INFO] [stderr]   --> src/instruction.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const OPCODE_SIZEBx: OpCodeSize = 18;
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `OPCODE_SIZEBX`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OPCODE_SIZESBx` should have an upper case name
[INFO] [stderr]   --> src/instruction.rs:15:11
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub const OPCODE_SIZESBx: OpCodeSize = 18;
[INFO] [stderr]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `OPCODE_SIZESBX`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OPCODE_MAXBx` should have an upper case name
[INFO] [stderr]   --> src/instruction.rs:20:11
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub const OPCODE_MAXBx: OpCodeSize = 1 << OPCODE_SIZEBx - 1;
[INFO] [stderr]    |           ^^^^^^^^^^^^ help: convert the identifier to upper case: `OPCODE_MAXBX`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OPCODE_MAXSBx` should have an upper case name
[INFO] [stderr]   --> src/instruction.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub const OPCODE_MAXSBx: OpCodeSize = OPCODE_MAXBx >> 1;
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `OPCODE_MAXSBX`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `opBitRk` should have an upper case name
[INFO] [stderr]    --> src/instruction.rs:297:11
[INFO] [stderr]     |
[INFO] [stderr] 297 | pub const opBitRk: OpCodeSize = 1 << (OPCODE_SIZEB - 1);
[INFO] [stderr]     |           ^^^^^^^ help: convert the identifier to upper case: `OP_BIT_RK`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `opMaxIndexRk` should have an upper case name
[INFO] [stderr]    --> src/instruction.rs:298:11
[INFO] [stderr]     |
[INFO] [stderr] 298 | pub const opMaxIndexRk: OpCodeSize = opBitRk - 1;
[INFO] [stderr]     |           ^^^^^^^^^^^^ help: convert the identifier to upper case: `OP_MAX_INDEX_RK`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compiler.rs:282:9
[INFO] [stderr]     |
[INFO] [stderr] 282 |         writeln!(f, "PC: <{}>", self.pc);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compiler.rs:284:13
[INFO] [stderr]     |
[INFO] [stderr] 284 |             writeln!(f, "<{:04}:L{:04}> {}", i, self.lines[i], to_string(*inst));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/compiler.rs:1876:13
[INFO] [stderr]      |
[INFO] [stderr] 1876 |         let mut codestore = Instructions::new();
[INFO] [stderr]      |             ----^^^^^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_arga`
[INFO] [stderr]    --> src/compiler.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 198 |     fn set_arga(&mut self, pc: usize, a: i32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_argbx`
[INFO] [stderr]    --> src/compiler.rs:210:5
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn set_argbx(&mut self, pc: usize, bx: i32) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_ref_upval`
[INFO] [stderr]    --> src/compiler.rs:396:5
[INFO] [stderr]     |
[INFO] [stderr] 396 |     fn set_ref_upval(&mut self, b: bool) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `startline`
[INFO] [stderr]    --> src/compiler.rs:400:5
[INFO] [stderr]     |
[INFO] [stderr] 400 |     fn startline(&self) -> u32 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]  --> src/value.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Nil,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/value.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Bool(bool),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Function`
[INFO] [stderr]  --> src/value.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Function,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UserData`
[INFO] [stderr]  --> src/value.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     UserData,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Thread`
[INFO] [stderr]  --> src/value.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Thread,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Table`
[INFO] [stderr]   --> src/value.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Table,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NO_JUMP`
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const NO_JUMP: isize = -1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/parser.rs:610:9
[INFO] [stderr]     |
[INFO] [stderr] 610 |         self.check_match(Token::End, Token::For, line);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OPCODE_SIZEBx` should have an upper case name
[INFO] [stderr]   --> src/instruction.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const OPCODE_SIZEBx: OpCodeSize = 18;
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `OPCODE_SIZEBX`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OPCODE_SIZESBx` should have an upper case name
[INFO] [stderr]   --> src/instruction.rs:15:11
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub const OPCODE_SIZESBx: OpCodeSize = 18;
[INFO] [stderr]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `OPCODE_SIZESBX`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OPCODE_MAXBx` should have an upper case name
[INFO] [stderr]   --> src/instruction.rs:20:11
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub const OPCODE_MAXBx: OpCodeSize = 1 << OPCODE_SIZEBx - 1;
[INFO] [stderr]    |           ^^^^^^^^^^^^ help: convert the identifier to upper case: `OPCODE_MAXBX`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OPCODE_MAXSBx` should have an upper case name
[INFO] [stderr]   --> src/instruction.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub const OPCODE_MAXSBx: OpCodeSize = OPCODE_MAXBx >> 1;
[INFO] [stderr]    |           ^^^^^^^^^^^^^ help: convert the identifier to upper case: `OPCODE_MAXSBX`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `opBitRk` should have an upper case name
[INFO] [stderr]    --> src/instruction.rs:297:11
[INFO] [stderr]     |
[INFO] [stderr] 297 | pub const opBitRk: OpCodeSize = 1 << (OPCODE_SIZEB - 1);
[INFO] [stderr]     |           ^^^^^^^ help: convert the identifier to upper case: `OP_BIT_RK`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `opMaxIndexRk` should have an upper case name
[INFO] [stderr]    --> src/instruction.rs:298:11
[INFO] [stderr]     |
[INFO] [stderr] 298 | pub const opMaxIndexRk: OpCodeSize = opBitRk - 1;
[INFO] [stderr]     |           ^^^^^^^^^^^^ help: convert the identifier to upper case: `OP_MAX_INDEX_RK`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compiler.rs:282:9
[INFO] [stderr]     |
[INFO] [stderr] 282 |         writeln!(f, "PC: <{}>", self.pc);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compiler.rs:284:13
[INFO] [stderr]     |
[INFO] [stderr] 284 |             writeln!(f, "<{:04}:L{:04}> {}", i, self.lines[i], to_string(*inst));
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.47s
[INFO] running `"docker" "inspect" "caa5d71584871ec5e8fb5777c320415ef7fcb0815142babceb6be4cd1ceb139d"`
[INFO] running `"docker" "rm" "-f" "caa5d71584871ec5e8fb5777c320415ef7fcb0815142babceb6be4cd1ceb139d"`
[INFO] [stdout] caa5d71584871ec5e8fb5777c320415ef7fcb0815142babceb6be4cd1ceb139d