Dec 11 05:37:28.414 INFO checking yiransheng/rust-lox against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 05:37:28.414 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 05:37:28.898 INFO [stdout] d320276279981a6af3ff135e59c215bdf7ed0502bbacfa5ec42f01226107b70d
Dec 11 05:37:28.900 INFO running `"docker" "start" "-a" "d320276279981a6af3ff135e59c215bdf7ed0502bbacfa5ec42f01226107b70d"`
Dec 11 05:37:30.484 INFO [stderr] usermod: no changes
Dec 11 05:37:30.647 INFO [stderr]    Compiling num-traits v0.2.6
Dec 11 05:37:30.647 INFO [stderr]    Compiling num-integer v0.1.39
Dec 11 05:37:30.647 INFO [stderr]    Compiling proc-macro2 v0.4.20
Dec 11 05:37:30.647 INFO [stderr]    Compiling num-bigint v0.2.0
Dec 11 05:37:30.647 INFO [stderr]    Compiling num-complex v0.2.1
Dec 11 05:37:30.647 INFO [stderr]    Compiling num-iter v0.1.37
Dec 11 05:37:30.647 INFO [stderr]    Compiling num-rational v0.2.1
Dec 11 05:37:30.656 INFO [stderr]    Compiling num-derive v0.2.3
Dec 11 05:37:34.998 INFO [stderr]     Checking arraydeque v0.4.3
Dec 11 05:37:41.009 INFO [stderr]    Compiling quote v0.6.8
Dec 11 05:37:42.456 INFO [stderr]    Compiling syn v0.15.9
Dec 11 05:37:48.271 INFO [stderr]     Checking num v0.2.0
Dec 11 05:37:59.847 INFO [stderr]     Checking loxvm v0.1.0 (/source)
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `object::*`
Dec 11 05:38:00.253 INFO [stderr]  --> src/compiler.rs:3:5
Dec 11 05:38:00.253 INFO [stderr]   |
Dec 11 05:38:00.253 INFO [stderr] 3 | use object::*;
Dec 11 05:38:00.253 INFO [stderr]   |     ^^^^^^^^^
Dec 11 05:38:00.253 INFO [stderr]   |
Dec 11 05:38:00.253 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `object::*`
Dec 11 05:38:00.253 INFO [stderr]  --> src/compiler.rs:3:5
Dec 11 05:38:00.253 INFO [stderr]   |
Dec 11 05:38:00.253 INFO [stderr] 3 | use object::*;
Dec 11 05:38:00.253 INFO [stderr]   |     ^^^^^^^^^
Dec 11 05:38:00.253 INFO [stderr]   |
Dec 11 05:38:00.253 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `Into`
Dec 11 05:38:00.253 INFO [stderr]  --> src/value.rs:2:26
Dec 11 05:38:00.253 INFO [stderr]   |
Dec 11 05:38:00.253 INFO [stderr] 2 | use std::convert::{From, Into};
Dec 11 05:38:00.253 INFO [stderr]   |                          ^^^^
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `common::*`
Dec 11 05:38:00.253 INFO [stderr]   --> src/main.rs:17:5
Dec 11 05:38:00.253 INFO [stderr]    |
Dec 11 05:38:00.253 INFO [stderr] 17 | use common::*;
Dec 11 05:38:00.253 INFO [stderr]    |     ^^^^^^^^^
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `scanner::Scanner`
Dec 11 05:38:00.253 INFO [stderr]   --> src/main.rs:19:5
Dec 11 05:38:00.253 INFO [stderr]    |
Dec 11 05:38:00.253 INFO [stderr] 19 | use scanner::Scanner;
Dec 11 05:38:00.253 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `scanner::TokenType`
Dec 11 05:38:00.253 INFO [stderr]   --> src/main.rs:20:5
Dec 11 05:38:00.253 INFO [stderr]    |
Dec 11 05:38:00.253 INFO [stderr] 20 | use scanner::TokenType;
Dec 11 05:38:00.253 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `Into`
Dec 11 05:38:00.253 INFO [stderr]  --> src/value.rs:2:26
Dec 11 05:38:00.253 INFO [stderr]   |
Dec 11 05:38:00.253 INFO [stderr] 2 | use std::convert::{From, Into};
Dec 11 05:38:00.253 INFO [stderr]   |                          ^^^^
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `common::*`
Dec 11 05:38:00.253 INFO [stderr]   --> src/main.rs:17:5
Dec 11 05:38:00.253 INFO [stderr]    |
Dec 11 05:38:00.253 INFO [stderr] 17 | use common::*;
Dec 11 05:38:00.253 INFO [stderr]    |     ^^^^^^^^^
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `scanner::Scanner`
Dec 11 05:38:00.253 INFO [stderr]   --> src/main.rs:19:5
Dec 11 05:38:00.253 INFO [stderr]    |
Dec 11 05:38:00.253 INFO [stderr] 19 | use scanner::Scanner;
Dec 11 05:38:00.253 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.253 INFO [stderr] warning: unused import: `scanner::TokenType`
Dec 11 05:38:00.253 INFO [stderr]   --> src/main.rs:20:5
Dec 11 05:38:00.253 INFO [stderr]    |
Dec 11 05:38:00.253 INFO [stderr] 20 | use scanner::TokenType;
Dec 11 05:38:00.253 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.253 INFO [stderr] 
Dec 11 05:38:00.960 INFO [stderr] warning: variant is never constructed: `TooManyConstants`
Dec 11 05:38:00.960 INFO [stderr]   --> src/compiler.rs:19:5
Dec 11 05:38:00.960 INFO [stderr]    |
Dec 11 05:38:00.960 INFO [stderr] 19 |     TooManyConstants,
Dec 11 05:38:00.960 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 05:38:00.960 INFO [stderr]    |
Dec 11 05:38:00.960 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 05:38:00.960 INFO [stderr] 
Dec 11 05:38:00.960 INFO [stderr] warning: method is never used: `error_at_current`
Dec 11 05:38:00.960 INFO [stderr]    --> src/compiler.rs:361:5
Dec 11 05:38:00.960 INFO [stderr]     |
Dec 11 05:38:00.960 INFO [stderr] 361 |     fn error_at_current(&mut self, message: &str) -> CompileError {
Dec 11 05:38:00.960 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.960 INFO [stderr] 
Dec 11 05:38:00.960 INFO [stderr] warning: variant is never constructed: `Function`
Dec 11 05:38:00.960 INFO [stderr]  --> src/object.rs:7:5
Dec 11 05:38:00.960 INFO [stderr]   |
Dec 11 05:38:00.960 INFO [stderr] 7 |     Function,
Dec 11 05:38:00.960 INFO [stderr]   |     ^^^^^^^^
Dec 11 05:38:00.960 INFO [stderr] 
Dec 11 05:38:00.960 INFO [stderr] warning: method is never used: `identifier_equal`
Dec 11 05:38:00.960 INFO [stderr]   --> src/scanner/token.rs:64:5
Dec 11 05:38:00.960 INFO [stderr]    |
Dec 11 05:38:00.960 INFO [stderr] 64 |     pub fn identifier_equal(&self, other: &Token<'a>) -> bool {
Dec 11 05:38:00.960 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.960 INFO [stderr] 
Dec 11 05:38:00.960 INFO [stderr] warning: method is never used: `take`
Dec 11 05:38:00.960 INFO [stderr]   --> src/value.rs:43:5
Dec 11 05:38:00.960 INFO [stderr]    |
Dec 11 05:38:00.960 INFO [stderr] 43 |     pub fn take(&mut self) -> Value<O> {
Dec 11 05:38:00.960 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.960 INFO [stderr] 
Dec 11 05:38:00.960 INFO [stderr] warning: method is never used: `into_bool`
Dec 11 05:38:00.960 INFO [stderr]   --> src/value.rs:52:5
Dec 11 05:38:00.960 INFO [stderr]    |
Dec 11 05:38:00.960 INFO [stderr] 52 |     pub fn into_bool(self) -> Option<bool> {
Dec 11 05:38:00.960 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:00.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:00.961 INFO [stderr]    --> src/chunk.rs:111:13
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr] 111 |             write!(write_to, "   | ");
Dec 11 05:38:00.961 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 05:38:00.961 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:00.961 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:00.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:00.961 INFO [stderr]    --> src/chunk.rs:113:13
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr] 113 |             write!(write_to, "{:04} ", line_no);
Dec 11 05:38:00.961 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:00.961 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:00.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:00.961 INFO [stderr]    --> src/chunk.rs:141:17
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr] 141 |                 writeln!(write_to, "Unknown OptCode {}", instr);
Dec 11 05:38:00.961 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:00.961 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:00.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:00.961 INFO [stderr]    --> src/chunk.rs:152:9
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr] 152 |         writeln!(write_to, "{}", name);
Dec 11 05:38:00.961 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:00.961 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:00.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:00.961 INFO [stderr]    --> src/chunk.rs:163:9
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr] 163 |         write!(write_to, "{:<16} {:04} ", name, constant);
Dec 11 05:38:00.961 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:00.961 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:00.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:00.961 INFO [stderr]    --> src/chunk.rs:164:9
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr] 164 |         writeln!(write_to, "{}", self.constants[constant as usize]);
Dec 11 05:38:00.961 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:00.961 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:00.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:00.961 INFO [stderr]    --> src/vm.rs:227:9
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr] 227 |         writeln!(self.output, "{}", v);
Dec 11 05:38:00.961 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr]     |
Dec 11 05:38:00.961 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:00.961 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:00.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:00.961 INFO [stderr]   --> src/main.rs:38:13
Dec 11 05:38:00.961 INFO [stderr]    |
Dec 11 05:38:00.961 INFO [stderr] 38 |             vm.interpret();
Dec 11 05:38:00.961 INFO [stderr]    |             ^^^^^^^^^^^^^^^
Dec 11 05:38:00.961 INFO [stderr]    |
Dec 11 05:38:00.961 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:00.961 INFO [stderr] 
Dec 11 05:38:01.260 INFO [stderr] warning: variant is never constructed: `TooManyConstants`
Dec 11 05:38:01.260 INFO [stderr]   --> src/compiler.rs:19:5
Dec 11 05:38:01.261 INFO [stderr]    |
Dec 11 05:38:01.261 INFO [stderr] 19 |     TooManyConstants,
Dec 11 05:38:01.261 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr]    |
Dec 11 05:38:01.261 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: method is never used: `error_at_current`
Dec 11 05:38:01.261 INFO [stderr]    --> src/compiler.rs:361:5
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr] 361 |     fn error_at_current(&mut self, message: &str) -> CompileError {
Dec 11 05:38:01.261 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: variant is never constructed: `Function`
Dec 11 05:38:01.261 INFO [stderr]  --> src/object.rs:7:5
Dec 11 05:38:01.261 INFO [stderr]   |
Dec 11 05:38:01.261 INFO [stderr] 7 |     Function,
Dec 11 05:38:01.261 INFO [stderr]   |     ^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: method is never used: `identifier_equal`
Dec 11 05:38:01.261 INFO [stderr]   --> src/scanner/token.rs:64:5
Dec 11 05:38:01.261 INFO [stderr]    |
Dec 11 05:38:01.261 INFO [stderr] 64 |     pub fn identifier_equal(&self, other: &Token<'a>) -> bool {
Dec 11 05:38:01.261 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: method is never used: `take`
Dec 11 05:38:01.261 INFO [stderr]   --> src/value.rs:43:5
Dec 11 05:38:01.261 INFO [stderr]    |
Dec 11 05:38:01.261 INFO [stderr] 43 |     pub fn take(&mut self) -> Value<O> {
Dec 11 05:38:01.261 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: method is never used: `into_bool`
Dec 11 05:38:01.261 INFO [stderr]   --> src/value.rs:52:5
Dec 11 05:38:01.261 INFO [stderr]    |
Dec 11 05:38:01.261 INFO [stderr] 52 |     pub fn into_bool(self) -> Option<bool> {
Dec 11 05:38:01.261 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:01.261 INFO [stderr]    --> src/chunk.rs:111:13
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr] 111 |             write!(write_to, "   | ");
Dec 11 05:38:01.261 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 05:38:01.261 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:01.261 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:01.261 INFO [stderr]    --> src/chunk.rs:113:13
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr] 113 |             write!(write_to, "{:04} ", line_no);
Dec 11 05:38:01.261 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:01.261 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:01.261 INFO [stderr]    --> src/chunk.rs:141:17
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr] 141 |                 writeln!(write_to, "Unknown OptCode {}", instr);
Dec 11 05:38:01.261 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:01.261 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:01.261 INFO [stderr]    --> src/chunk.rs:152:9
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr] 152 |         writeln!(write_to, "{}", name);
Dec 11 05:38:01.261 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:01.261 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:01.261 INFO [stderr]    --> src/chunk.rs:163:9
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr] 163 |         write!(write_to, "{:<16} {:04} ", name, constant);
Dec 11 05:38:01.261 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:01.261 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:01.261 INFO [stderr] 
Dec 11 05:38:01.261 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:01.261 INFO [stderr]    --> src/chunk.rs:164:9
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr] 164 |         writeln!(write_to, "{}", self.constants[constant as usize]);
Dec 11 05:38:01.261 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.261 INFO [stderr]     |
Dec 11 05:38:01.261 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:01.262 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:01.262 INFO [stderr] 
Dec 11 05:38:01.264 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:01.264 INFO [stderr]    --> src/vm.rs:227:9
Dec 11 05:38:01.264 INFO [stderr]     |
Dec 11 05:38:01.264 INFO [stderr] 227 |         writeln!(self.output, "{}", v);
Dec 11 05:38:01.264 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:38:01.264 INFO [stderr]     |
Dec 11 05:38:01.264 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:01.264 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 11 05:38:01.264 INFO [stderr] 
Dec 11 05:38:01.264 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:38:01.264 INFO [stderr]   --> src/main.rs:38:13
Dec 11 05:38:01.264 INFO [stderr]    |
Dec 11 05:38:01.264 INFO [stderr] 38 |             vm.interpret();
Dec 11 05:38:01.264 INFO [stderr]    |             ^^^^^^^^^^^^^^^
Dec 11 05:38:01.264 INFO [stderr]    |
Dec 11 05:38:01.264 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:38:01.264 INFO [stderr] 
Dec 11 05:38:01.328 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.81s
Dec 11 05:38:01.332 INFO [stderr] su: No module specific data is present
Dec 11 05:38:02.225 INFO running `"docker" "inspect" "d320276279981a6af3ff135e59c215bdf7ed0502bbacfa5ec42f01226107b70d"`
Dec 11 05:38:02.598 INFO running `"docker" "rm" "-f" "d320276279981a6af3ff135e59c215bdf7ed0502bbacfa5ec42f01226107b70d"`
Dec 11 05:38:02.934 INFO [stdout] d320276279981a6af3ff135e59c215bdf7ed0502bbacfa5ec42f01226107b70d