Dec 19 08:56:00.429 INFO checking shimomura1004/rust_playground against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:56:00.429 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/shimomura1004/rust_playground:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:56:00.820 INFO [stdout] 242e7310281d084d17abd2fab6a6ab5685be98b007b8bd0b49048a31d6e3495d
Dec 19 08:56:00.822 INFO running `"docker" "start" "-a" "242e7310281d084d17abd2fab6a6ab5685be98b007b8bd0b49048a31d6e3495d"`
Dec 19 08:56:01.971 INFO [stderr]     Checking stackmachine v0.1.0 (/opt/crater/workdir)
Dec 19 08:56:02.344 INFO [stderr] warning: unused import: `parser`
Dec 19 08:56:02.344 INFO [stderr]    --> src/interpreter/mod.rs:121:5
Dec 19 08:56:02.344 INFO [stderr]     |
Dec 19 08:56:02.344 INFO [stderr] 121 | use parser;
Dec 19 08:56:02.344 INFO [stderr]     |     ^^^^^^
Dec 19 08:56:02.344 INFO [stderr]     |
Dec 19 08:56:02.344 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 19 08:56:02.344 INFO [stderr] 
Dec 19 08:56:03.024 INFO [stderr] warning: unreachable pattern
Dec 19 08:56:03.024 INFO [stderr]   --> src/interpreter/mod.rs:86:13
Dec 19 08:56:03.024 INFO [stderr]    |
Dec 19 08:56:03.024 INFO [stderr] 86 |             _ => {
Dec 19 08:56:03.024 INFO [stderr]    |             ^
Dec 19 08:56:03.032 INFO [stderr]    |
Dec 19 08:56:03.032 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 19 08:56:03.032 INFO [stderr] 
Dec 19 08:56:03.032 INFO [stderr] warning: unused variable: `t1`
Dec 19 08:56:03.033 INFO [stderr]   --> src/compiler/mod.rs:28:21
Dec 19 08:56:03.033 INFO [stderr]    |
Dec 19 08:56:03.033 INFO [stderr] 28 |         ExpAst::App(t1, t2) => {
Dec 19 08:56:03.033 INFO [stderr]    |                     ^^ help: consider using `_t1` instead
Dec 19 08:56:03.033 INFO [stderr]    |
Dec 19 08:56:03.033 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `t2`
Dec 19 08:56:03.033 INFO [stderr]   --> src/compiler/mod.rs:28:25
Dec 19 08:56:03.033 INFO [stderr]    |
Dec 19 08:56:03.033 INFO [stderr] 28 |         ExpAst::App(t1, t2) => {
Dec 19 08:56:03.033 INFO [stderr]    |                         ^^ help: consider using `_t2` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `name`
Dec 19 08:56:03.033 INFO [stderr]   --> src/compiler/mod.rs:31:21
Dec 19 08:56:03.033 INFO [stderr]    |
Dec 19 08:56:03.033 INFO [stderr] 31 |         ExpAst::Var(name) => {
Dec 19 08:56:03.033 INFO [stderr]    |                     ^^^^ help: consider using `_name` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `name`
Dec 19 08:56:03.033 INFO [stderr]   --> src/compiler/mod.rs:63:30
Dec 19 08:56:03.033 INFO [stderr]    |
Dec 19 08:56:03.033 INFO [stderr] 63 |         StatementAst::Assign(name, exp_ast) => (),
Dec 19 08:56:03.033 INFO [stderr]    |                              ^^^^ help: consider using `_name` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `exp_ast`
Dec 19 08:56:03.033 INFO [stderr]   --> src/compiler/mod.rs:63:36
Dec 19 08:56:03.033 INFO [stderr]    |
Dec 19 08:56:03.033 INFO [stderr] 63 |         StatementAst::Assign(name, exp_ast) => (),
Dec 19 08:56:03.033 INFO [stderr]    |                                    ^^^^^^^ help: consider using `_exp_ast` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `ast`
Dec 19 08:56:03.033 INFO [stderr]   --> src/compiler/mod.rs:67:22
Dec 19 08:56:03.033 INFO [stderr]    |
Dec 19 08:56:03.033 INFO [stderr] 67 | pub fn compile_block(ast : &BlockAst, code : &mut Vec<vm::Operator>) {
Dec 19 08:56:03.033 INFO [stderr]    |                      ^^^ help: consider using `_ast` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `code`
Dec 19 08:56:03.033 INFO [stderr]   --> src/compiler/mod.rs:67:39
Dec 19 08:56:03.033 INFO [stderr]    |
Dec 19 08:56:03.033 INFO [stderr] 67 | pub fn compile_block(ast : &BlockAst, code : &mut Vec<vm::Operator>) {
Dec 19 08:56:03.033 INFO [stderr]    |                                       ^^^^ help: consider using `_code` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `input`
Dec 19 08:56:03.033 INFO [stderr]    --> src/parser/mod.rs:162:21
Dec 19 08:56:03.033 INFO [stderr]     |
Dec 19 08:56:03.033 INFO [stderr] 162 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp5, ParseError> {
Dec 19 08:56:03.033 INFO [stderr]     |                     ^^^^^ help: consider using `_input` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `input`
Dec 19 08:56:03.033 INFO [stderr]    --> src/parser/mod.rs:241:21
Dec 19 08:56:03.033 INFO [stderr]     |
Dec 19 08:56:03.033 INFO [stderr] 241 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp3, ParseError> {
Dec 19 08:56:03.033 INFO [stderr]     |                     ^^^^^ help: consider using `_input` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.033 INFO [stderr] warning: unused variable: `input`
Dec 19 08:56:03.033 INFO [stderr]    --> src/parser/mod.rs:317:21
Dec 19 08:56:03.033 INFO [stderr]     |
Dec 19 08:56:03.033 INFO [stderr] 317 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp1, ParseError> {
Dec 19 08:56:03.033 INFO [stderr]     |                     ^^^^^ help: consider using `_input` instead
Dec 19 08:56:03.033 INFO [stderr] 
Dec 19 08:56:03.040 INFO [stderr] warning: unreachable pattern
Dec 19 08:56:03.040 INFO [stderr]   --> src/interpreter/mod.rs:86:13
Dec 19 08:56:03.040 INFO [stderr]    |
Dec 19 08:56:03.040 INFO [stderr] 86 |             _ => {
Dec 19 08:56:03.040 INFO [stderr]    |             ^
Dec 19 08:56:03.040 INFO [stderr]    |
Dec 19 08:56:03.040 INFO [stderr]    = note: #[warn(unreachable_patterns)] on by default
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `t1`
Dec 19 08:56:03.041 INFO [stderr]   --> src/compiler/mod.rs:28:21
Dec 19 08:56:03.041 INFO [stderr]    |
Dec 19 08:56:03.041 INFO [stderr] 28 |         ExpAst::App(t1, t2) => {
Dec 19 08:56:03.041 INFO [stderr]    |                     ^^ help: consider using `_t1` instead
Dec 19 08:56:03.041 INFO [stderr]    |
Dec 19 08:56:03.041 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `t2`
Dec 19 08:56:03.041 INFO [stderr]   --> src/compiler/mod.rs:28:25
Dec 19 08:56:03.041 INFO [stderr]    |
Dec 19 08:56:03.041 INFO [stderr] 28 |         ExpAst::App(t1, t2) => {
Dec 19 08:56:03.041 INFO [stderr]    |                         ^^ help: consider using `_t2` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `name`
Dec 19 08:56:03.041 INFO [stderr]   --> src/compiler/mod.rs:31:21
Dec 19 08:56:03.041 INFO [stderr]    |
Dec 19 08:56:03.041 INFO [stderr] 31 |         ExpAst::Var(name) => {
Dec 19 08:56:03.041 INFO [stderr]    |                     ^^^^ help: consider using `_name` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `name`
Dec 19 08:56:03.041 INFO [stderr]   --> src/compiler/mod.rs:63:30
Dec 19 08:56:03.041 INFO [stderr]    |
Dec 19 08:56:03.041 INFO [stderr] 63 |         StatementAst::Assign(name, exp_ast) => (),
Dec 19 08:56:03.041 INFO [stderr]    |                              ^^^^ help: consider using `_name` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `exp_ast`
Dec 19 08:56:03.041 INFO [stderr]   --> src/compiler/mod.rs:63:36
Dec 19 08:56:03.041 INFO [stderr]    |
Dec 19 08:56:03.041 INFO [stderr] 63 |         StatementAst::Assign(name, exp_ast) => (),
Dec 19 08:56:03.041 INFO [stderr]    |                                    ^^^^^^^ help: consider using `_exp_ast` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `ast`
Dec 19 08:56:03.041 INFO [stderr]   --> src/compiler/mod.rs:67:22
Dec 19 08:56:03.041 INFO [stderr]    |
Dec 19 08:56:03.041 INFO [stderr] 67 | pub fn compile_block(ast : &BlockAst, code : &mut Vec<vm::Operator>) {
Dec 19 08:56:03.041 INFO [stderr]    |                      ^^^ help: consider using `_ast` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `code`
Dec 19 08:56:03.041 INFO [stderr]   --> src/compiler/mod.rs:67:39
Dec 19 08:56:03.041 INFO [stderr]    |
Dec 19 08:56:03.041 INFO [stderr] 67 | pub fn compile_block(ast : &BlockAst, code : &mut Vec<vm::Operator>) {
Dec 19 08:56:03.041 INFO [stderr]    |                                       ^^^^ help: consider using `_code` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `input`
Dec 19 08:56:03.041 INFO [stderr]    --> src/parser/mod.rs:162:21
Dec 19 08:56:03.041 INFO [stderr]     |
Dec 19 08:56:03.041 INFO [stderr] 162 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp5, ParseError> {
Dec 19 08:56:03.041 INFO [stderr]     |                     ^^^^^ help: consider using `_input` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `input`
Dec 19 08:56:03.041 INFO [stderr]    --> src/parser/mod.rs:241:21
Dec 19 08:56:03.041 INFO [stderr]     |
Dec 19 08:56:03.041 INFO [stderr] 241 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp3, ParseError> {
Dec 19 08:56:03.041 INFO [stderr]     |                     ^^^^^ help: consider using `_input` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.041 INFO [stderr] warning: unused variable: `input`
Dec 19 08:56:03.041 INFO [stderr]    --> src/parser/mod.rs:317:21
Dec 19 08:56:03.041 INFO [stderr]     |
Dec 19 08:56:03.041 INFO [stderr] 317 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp1, ParseError> {
Dec 19 08:56:03.041 INFO [stderr]     |                     ^^^^^ help: consider using `_input` instead
Dec 19 08:56:03.041 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `PushInt32`
Dec 19 08:56:03.293 INFO [stderr]  --> src/vm/mod.rs:3:5
Dec 19 08:56:03.293 INFO [stderr]   |
Dec 19 08:56:03.293 INFO [stderr] 3 |     PushInt32(i32),
Dec 19 08:56:03.293 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 08:56:03.293 INFO [stderr]   |
Dec 19 08:56:03.293 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Pop`
Dec 19 08:56:03.293 INFO [stderr]  --> src/vm/mod.rs:4:5
Dec 19 08:56:03.293 INFO [stderr]   |
Dec 19 08:56:03.293 INFO [stderr] 4 |     Pop,
Dec 19 08:56:03.293 INFO [stderr]   |     ^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Add`
Dec 19 08:56:03.293 INFO [stderr]  --> src/vm/mod.rs:6:5
Dec 19 08:56:03.293 INFO [stderr]   |
Dec 19 08:56:03.293 INFO [stderr] 6 |     Add,
Dec 19 08:56:03.293 INFO [stderr]   |     ^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Sub`
Dec 19 08:56:03.293 INFO [stderr]  --> src/vm/mod.rs:7:5
Dec 19 08:56:03.293 INFO [stderr]   |
Dec 19 08:56:03.293 INFO [stderr] 7 |     Sub,
Dec 19 08:56:03.293 INFO [stderr]   |     ^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Mul`
Dec 19 08:56:03.293 INFO [stderr]  --> src/vm/mod.rs:8:5
Dec 19 08:56:03.293 INFO [stderr]   |
Dec 19 08:56:03.293 INFO [stderr] 8 |     Mul,
Dec 19 08:56:03.293 INFO [stderr]   |     ^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Div`
Dec 19 08:56:03.293 INFO [stderr]  --> src/vm/mod.rs:9:5
Dec 19 08:56:03.293 INFO [stderr]   |
Dec 19 08:56:03.293 INFO [stderr] 9 |     Div,
Dec 19 08:56:03.293 INFO [stderr]   |     ^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Not`
Dec 19 08:56:03.293 INFO [stderr]   --> src/vm/mod.rs:11:5
Dec 19 08:56:03.293 INFO [stderr]    |
Dec 19 08:56:03.293 INFO [stderr] 11 |     Not,
Dec 19 08:56:03.293 INFO [stderr]    |     ^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Equal`
Dec 19 08:56:03.293 INFO [stderr]   --> src/vm/mod.rs:13:5
Dec 19 08:56:03.293 INFO [stderr]    |
Dec 19 08:56:03.293 INFO [stderr] 13 |     Equal,             // read 2 value from stack, compare them  and push 1/0 if values are the same/different
Dec 19 08:56:03.293 INFO [stderr]    |     ^^^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Load`
Dec 19 08:56:03.293 INFO [stderr]   --> src/vm/mod.rs:15:5
Dec 19 08:56:03.293 INFO [stderr]    |
Dec 19 08:56:03.293 INFO [stderr] 15 |     Load(usize),       // read the n-th item in the stack and push it on top
Dec 19 08:56:03.293 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Store`
Dec 19 08:56:03.293 INFO [stderr]   --> src/vm/mod.rs:16:5
Dec 19 08:56:03.293 INFO [stderr]    |
Dec 19 08:56:03.293 INFO [stderr] 16 |     Store(usize),      // write value on top of the stack to the n-th item in the stack
Dec 19 08:56:03.293 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `Print`
Dec 19 08:56:03.293 INFO [stderr]   --> src/vm/mod.rs:18:5
Dec 19 08:56:03.293 INFO [stderr]    |
Dec 19 08:56:03.293 INFO [stderr] 18 |     Print,             // print the value on top of the stack
Dec 19 08:56:03.293 INFO [stderr]    |     ^^^^^
Dec 19 08:56:03.293 INFO [stderr] 
Dec 19 08:56:03.293 INFO [stderr] warning: variant is never constructed: `JumpIf`
Dec 19 08:56:03.293 INFO [stderr]   --> src/vm/mod.rs:20:5
Dec 19 08:56:03.293 INFO [stderr]    |
Dec 19 08:56:03.294 INFO [stderr] 20 |     JumpIf(isize),     // proceed the PC if top of the stack is not 0
Dec 19 08:56:03.294 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 08:56:03.294 INFO [stderr] 
Dec 19 08:56:03.294 INFO [stderr] warning: variant is never constructed: `JumpUnless`
Dec 19 08:56:03.294 INFO [stderr]   --> src/vm/mod.rs:21:5
Dec 19 08:56:03.294 INFO [stderr]    |
Dec 19 08:56:03.294 INFO [stderr] 21 |     JumpUnless(isize), // proced the PC if top of the stack is 0
Dec 19 08:56:03.294 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.294 INFO [stderr] 
Dec 19 08:56:03.294 INFO [stderr] warning: variant is never constructed: `Jump`
Dec 19 08:56:03.294 INFO [stderr]   --> src/vm/mod.rs:22:5
Dec 19 08:56:03.294 INFO [stderr]    |
Dec 19 08:56:03.294 INFO [stderr] 22 |     Jump(isize),       // proceed the PC for the size
Dec 19 08:56:03.294 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 08:56:03.294 INFO [stderr] 
Dec 19 08:56:03.294 INFO [stderr] warning: variant is never constructed: `Dump`
Dec 19 08:56:03.294 INFO [stderr]   --> src/vm/mod.rs:24:5
Dec 19 08:56:03.294 INFO [stderr]    |
Dec 19 08:56:03.294 INFO [stderr] 24 |     Dump,
Dec 19 08:56:03.294 INFO [stderr]    |     ^^^^
Dec 19 08:56:03.294 INFO [stderr] 
Dec 19 08:56:03.294 INFO [stderr] warning: variant is never constructed: `Num`
Dec 19 08:56:03.294 INFO [stderr]   --> src/vm/mod.rs:29:5
Dec 19 08:56:03.294 INFO [stderr]    |
Dec 19 08:56:03.294 INFO [stderr] 29 |     Num(i32),
Dec 19 08:56:03.294 INFO [stderr]    |     ^^^^^^^^
Dec 19 08:56:03.294 INFO [stderr] 
Dec 19 08:56:03.294 INFO [stderr] warning: function is never used: `process`
Dec 19 08:56:03.294 INFO [stderr]   --> src/vm/mod.rs:32:1
Dec 19 08:56:03.294 INFO [stderr]    |
Dec 19 08:56:03.294 INFO [stderr] 32 | pub fn process(program : &Vec<Operator>) {
Dec 19 08:56:03.294 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.294 INFO [stderr] 
Dec 19 08:56:03.294 INFO [stderr] warning: function is never used: `compile`
Dec 19 08:56:03.294 INFO [stderr]  --> src/compiler/mod.rs:6:1
Dec 19 08:56:03.294 INFO [stderr]   |
Dec 19 08:56:03.294 INFO [stderr] 6 | pub fn compile(ast : &ExpAst, code : &mut Vec<vm::Operator>) {
Dec 19 08:56:03.294 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.294 INFO [stderr] 
Dec 19 08:56:03.294 INFO [stderr] warning: function is never used: `compile_statement`
Dec 19 08:56:03.294 INFO [stderr]   --> src/compiler/mod.rs:60:1
Dec 19 08:56:03.294 INFO [stderr]    |
Dec 19 08:56:03.294 INFO [stderr] 60 | pub fn compile_statement(ast : &StatementAst, code : &mut Vec<vm::Operator>) {
Dec 19 08:56:03.294 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.294 INFO [stderr] 
Dec 19 08:56:03.352 INFO [stderr] warning: variant is never constructed: `Sub`
Dec 19 08:56:03.352 INFO [stderr]  --> src/vm/mod.rs:7:5
Dec 19 08:56:03.352 INFO [stderr]   |
Dec 19 08:56:03.352 INFO [stderr] 7 |     Sub,
Dec 19 08:56:03.352 INFO [stderr]   |     ^^^
Dec 19 08:56:03.352 INFO [stderr]   |
Dec 19 08:56:03.352 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 08:56:03.352 INFO [stderr] 
Dec 19 08:56:03.352 INFO [stderr] warning: variant is never constructed: `Mul`
Dec 19 08:56:03.352 INFO [stderr]  --> src/vm/mod.rs:8:5
Dec 19 08:56:03.352 INFO [stderr]   |
Dec 19 08:56:03.352 INFO [stderr] 8 |     Mul,
Dec 19 08:56:03.352 INFO [stderr]   |     ^^^
Dec 19 08:56:03.352 INFO [stderr] 
Dec 19 08:56:03.352 INFO [stderr] warning: variant is never constructed: `Div`
Dec 19 08:56:03.352 INFO [stderr]  --> src/vm/mod.rs:9:5
Dec 19 08:56:03.352 INFO [stderr]   |
Dec 19 08:56:03.352 INFO [stderr] 9 |     Div,
Dec 19 08:56:03.352 INFO [stderr]   |     ^^^
Dec 19 08:56:03.352 INFO [stderr] 
Dec 19 08:56:03.352 INFO [stderr] warning: variant is never constructed: `JumpUnless`
Dec 19 08:56:03.352 INFO [stderr]   --> src/vm/mod.rs:21:5
Dec 19 08:56:03.352 INFO [stderr]    |
Dec 19 08:56:03.352 INFO [stderr] 21 |     JumpUnless(isize), // proced the PC if top of the stack is 0
Dec 19 08:56:03.352 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.352 INFO [stderr] 
Dec 19 08:56:03.352 INFO [stderr] warning: variant is never constructed: `Jump`
Dec 19 08:56:03.352 INFO [stderr]   --> src/vm/mod.rs:22:5
Dec 19 08:56:03.352 INFO [stderr]    |
Dec 19 08:56:03.352 INFO [stderr] 22 |     Jump(isize),       // proceed the PC for the size
Dec 19 08:56:03.352 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 08:56:03.352 INFO [stderr] 
Dec 19 08:56:03.352 INFO [stderr] warning: function is never used: `compile`
Dec 19 08:56:03.352 INFO [stderr]  --> src/compiler/mod.rs:6:1
Dec 19 08:56:03.352 INFO [stderr]   |
Dec 19 08:56:03.352 INFO [stderr] 6 | pub fn compile(ast : &ExpAst, code : &mut Vec<vm::Operator>) {
Dec 19 08:56:03.352 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.352 INFO [stderr] 
Dec 19 08:56:03.352 INFO [stderr] warning: function is never used: `compile_statement`
Dec 19 08:56:03.352 INFO [stderr]   --> src/compiler/mod.rs:60:1
Dec 19 08:56:03.352 INFO [stderr]    |
Dec 19 08:56:03.352 INFO [stderr] 60 | pub fn compile_statement(ast : &StatementAst, code : &mut Vec<vm::Operator>) {
Dec 19 08:56:03.353 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.353 INFO [stderr] 
Dec 19 08:56:03.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:56:03.372 INFO [stderr]    --> src/parser/combinator.rs:404:5
Dec 19 08:56:03.372 INFO [stderr]     |
Dec 19 08:56:03.372 INFO [stderr] 404 |     whitespaces.parse(&mut input);
Dec 19 08:56:03.372 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.372 INFO [stderr]     |
Dec 19 08:56:03.372 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 08:56:03.372 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:56:03.372 INFO [stderr] 
Dec 19 08:56:03.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:56:03.372 INFO [stderr]    --> src/parser/combinator.rs:411:5
Dec 19 08:56:03.372 INFO [stderr]     |
Dec 19 08:56:03.372 INFO [stderr] 411 |     whitespaces.parse(&mut input);
Dec 19 08:56:03.372 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:56:03.372 INFO [stderr]     |
Dec 19 08:56:03.372 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:56:03.372 INFO [stderr] 
Dec 19 08:56:03.415 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
Dec 19 08:56:04.178 INFO running `"docker" "inspect" "242e7310281d084d17abd2fab6a6ab5685be98b007b8bd0b49048a31d6e3495d"`
Dec 19 08:56:04.478 INFO running `"docker" "rm" "-f" "242e7310281d084d17abd2fab6a6ab5685be98b007b8bd0b49048a31d6e3495d"`
Dec 19 08:56:04.738 INFO [stdout] 242e7310281d084d17abd2fab6a6ab5685be98b007b8bd0b49048a31d6e3495d