[INFO] cloning repository https://github.com/jawm/protolang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jawm/protolang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawm%2Fprotolang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawm%2Fprotolang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 529add6bdffa68d173674f024985a3650da11ee7
[INFO] checking jawm/protolang against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawm%2Fprotolang" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jawm/protolang on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jawm/protolang
[INFO] finished tweaking git repo https://github.com/jawm/protolang
[INFO] tweaked toml for git repo https://github.com/jawm/protolang written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jawm/protolang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-1/source/src/main.rs
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_generator v2.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.47
[INFO] [stderr]   Downloaded pest v2.1.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.47
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.47
[INFO] [stderr]   Downloaded bumpalo v2.4.3
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.47
[INFO] [stderr]   Downloaded sha-1 v0.8.1
[INFO] [stderr]   Downloaded pest_meta v2.1.1
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.47
[INFO] [stderr]   Downloaded libc v0.2.55
[INFO] [stderr]   Downloaded js-sys v0.3.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac1db53b9f1d0001449e8c1b8451606c0ee299a13df5245193d5f6b276c3ad3c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ac1db53b9f1d0001449e8c1b8451606c0ee299a13df5245193d5f6b276c3ad3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac1db53b9f1d0001449e8c1b8451606c0ee299a13df5245193d5f6b276c3ad3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac1db53b9f1d0001449e8c1b8451606c0ee299a13df5245193d5f6b276c3ad3c", kill_on_drop: false }`
[INFO] [stdout] ac1db53b9f1d0001449e8c1b8451606c0ee299a13df5245193d5f6b276c3ad3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7a013d60165cee8ff6e3aa39727d6c56b718a3461a8288cfbcef5085d9bc2e1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e7a013d60165cee8ff6e3aa39727d6c56b718a3461a8288cfbcef5085d9bc2e1", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/src/main.rs
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.47
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling bumpalo v2.4.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.47
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking pest v2.1.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.47
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.47
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.47
[INFO] [stderr]     Checking js-sys v0.3.24
[INFO] [stderr]     Checking compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     type Error = ExprError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     fn from_error(v: Self::Error) -> Self {
[INFO] [stdout] 46 | |         match v {
[INFO] [stdout] 47 | |             ExprError::ControlFlow(c) => ExprResult::ControlFlow(c),
[INFO] [stdout] 48 | |             ExprError::Err(e) => ExprResult::Err(e)
[INFO] [stdout] 49 | |         }
[INFO] [stdout] 50 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 53 | |         ExprResult::Value(v)
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     type Error = ExprError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     fn from_error(v: Self::Error) -> Self {
[INFO] [stdout] 46 | |         match v {
[INFO] [stdout] 47 | |             ExprError::ControlFlow(c) => ExprResult::ControlFlow(c),
[INFO] [stdout] 48 | |             ExprError::Err(e) => ExprResult::Err(e)
[INFO] [stdout] 49 | |         }
[INFO] [stdout] 50 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 53 | |         ExprResult::Value(v)
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]   --> src/main.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 | use clap::{App, Arg, SubCommand};
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::{BufRead, BufReader, Write};
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interpreter::Value`
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::interpreter::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/errors.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lex::tokens::{Token, TokenType};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Binary`
[INFO] [stdout]  --> src/ast/expression.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Binary, Display, Error, Formatter};
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::expression::UnaryOperation`
[INFO] [stdout]  --> src/ast/printer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::ast::expression::UnaryOperation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow::Borrow`
[INFO] [stdout]  --> src/lex/lex.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::tokens::Token`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use lex::tokens::Token;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::Lexer`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use lex::Lexer;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenType`, `Token`
[INFO] [stdout]  --> src/parse/mod.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::lex::tokens::{Token, TokenType};
[INFO] [stdout]   |                          ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/parse/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Peekable`
[INFO] [stdout]  --> src/parse/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Peekable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::__rt::core::hint::unreachable_unchecked`
[INFO] [stdout]   --> src/parse/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wasm_bindgen::__rt::core::hint::unreachable_unchecked;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::__rt::std::process::exit`
[INFO] [stdout]   --> src/parse/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use wasm_bindgen::__rt::std::process::exit;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::errors::Error`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | use crate::errors::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::expression::ExpressionVisitor`
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use crate::ast::expression::ExpressionVisitor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `Ref`
[INFO] [stdout]  --> src/interpreter/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::{Cell, Ref, RefCell};
[INFO] [stdout]   |                 ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Binary`
[INFO] [stdout]   --> src/interpreter/mod.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Binary, Debug, Display, Formatter};
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stdout]   --> src/interpreter/mod.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter/mod.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Callable(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:136:21
[INFO] [stdout]     |
[INFO] [stdout] 136 |     output: &'a mut std::io::Write,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     type Error = ExprError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     fn from_error(v: Self::Error) -> Self {
[INFO] [stdout] 46 | |         match v {
[INFO] [stdout] 47 | |             ExprError::ControlFlow(c) => ExprResult::ControlFlow(c),
[INFO] [stdout] 48 | |             ExprError::Err(e) => ExprResult::Err(e)
[INFO] [stdout] 49 | |         }
[INFO] [stdout] 50 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 53 | |         ExprResult::Value(v)
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]   --> src/main.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 | use clap::{App, Arg, SubCommand};
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::{BufRead, BufReader, Write};
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interpreter::Value`
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::interpreter::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/errors.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lex::tokens::{Token, TokenType};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Binary`
[INFO] [stdout]  --> src/ast/expression.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Binary, Display, Error, Formatter};
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::expression::UnaryOperation`
[INFO] [stdout]  --> src/ast/printer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::ast::expression::UnaryOperation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow::Borrow`
[INFO] [stdout]  --> src/lex/lex.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::tokens::Token`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use lex::tokens::Token;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::Lexer`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use lex::Lexer;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenType`, `Token`
[INFO] [stdout]  --> src/parse/mod.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::lex::tokens::{Token, TokenType};
[INFO] [stdout]   |                          ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/parse/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Peekable`
[INFO] [stdout]  --> src/parse/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Peekable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::__rt::core::hint::unreachable_unchecked`
[INFO] [stdout]   --> src/parse/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wasm_bindgen::__rt::core::hint::unreachable_unchecked;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::__rt::std::process::exit`
[INFO] [stdout]   --> src/parse/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use wasm_bindgen::__rt::std::process::exit;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::errors::Error`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | use crate::errors::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::expression::ExpressionVisitor`
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use crate::ast::expression::ExpressionVisitor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `Ref`
[INFO] [stdout]  --> src/interpreter/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::{Cell, Ref, RefCell};
[INFO] [stdout]   |                 ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Binary`
[INFO] [stdout]   --> src/interpreter/mod.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Binary, Debug, Display, Formatter};
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stdout]   --> src/interpreter/mod.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter/mod.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Callable(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:136:21
[INFO] [stdout]     |
[INFO] [stdout] 136 |     output: &'a mut std::io::Write,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ops::{Add, Div, Mul, Sub, Try};
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     type Ok = Value;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Try for ExprResult {
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Error` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     type Error = ExprError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_error` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     fn from_error(v: Self::Error) -> Self {
[INFO] [stdout] 46 | |         match v {
[INFO] [stdout] 47 | |             ExprError::ControlFlow(c) => ExprResult::ControlFlow(c),
[INFO] [stdout] 48 | |             ExprError::Err(e) => ExprResult::Err(e)
[INFO] [stdout] 49 | |         }
[INFO] [stdout] 50 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `from_ok` is not a member of trait `Try`
[INFO] [stdout]   --> src/interpreter/mod.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout] 53 | |         ExprResult::Value(v)
[INFO] [stdout] 54 | |     }
[INFO] [stdout]    | |_____^ not a member of trait `Try`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]   --> src/main.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 | use clap::{App, Arg, SubCommand};
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::{BufRead, BufReader, Write};
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interpreter::Value`
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::interpreter::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/errors.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lex::tokens::{Token, TokenType};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Binary`
[INFO] [stdout]  --> src/ast/expression.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Binary, Display, Error, Formatter};
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::expression::UnaryOperation`
[INFO] [stdout]  --> src/ast/printer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::ast::expression::UnaryOperation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow::Borrow`
[INFO] [stdout]  --> src/lex/lex.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::tokens::Token`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use lex::tokens::Token;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::Lexer`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use lex::Lexer;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenType`, `Token`
[INFO] [stdout]  --> src/parse/mod.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::lex::tokens::{Token, TokenType};
[INFO] [stdout]   |                          ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/parse/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ops::{Add, Div, Mul, Sub, Try};
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Peekable`
[INFO] [stdout]  --> src/parse/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Peekable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::__rt::core::hint::unreachable_unchecked`
[INFO] [stdout]   --> src/parse/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wasm_bindgen::__rt::core::hint::unreachable_unchecked;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     type Ok = Value;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::__rt::std::process::exit`
[INFO] [stdout]   --> src/parse/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use wasm_bindgen::__rt::std::process::exit;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Try for ExprResult {
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::errors::Error`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | use crate::errors::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::expression::ExpressionVisitor`
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use crate::ast::expression::ExpressionVisitor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `Ref`
[INFO] [stdout]  --> src/interpreter/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::{Cell, Ref, RefCell};
[INFO] [stdout]   |                 ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Binary`
[INFO] [stdout]   --> src/interpreter/mod.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Binary, Debug, Display, Formatter};
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stdout]   --> src/interpreter/mod.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter/mod.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Callable(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:136:21
[INFO] [stdout]     |
[INFO] [stdout] 136 |     output: &'a mut std::io::Write,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/interpreter/mod.rs:37:52
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                                    ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/interpreter/mod.rs:45:28
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn from_error(v: Self::Error) -> Self {
[INFO] [stdout]    |                            ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0407, E0437, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compiler`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/interpreter/mod.rs:37:52
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                                    ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/interpreter/mod.rs:45:28
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn from_error(v: Self::Error) -> Self {
[INFO] [stdout]    |                            ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]   --> src/main.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 | use clap::{App, Arg, SubCommand};
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::{BufRead, BufReader, Write};
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interpreter::Value`
[INFO] [stdout]  --> src/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::interpreter::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> src/errors.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lex::tokens::{Token, TokenType};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Binary`
[INFO] [stdout]  --> src/ast/expression.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Binary, Display, Error, Formatter};
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::expression::UnaryOperation`
[INFO] [stdout]  --> src/ast/printer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::ast::expression::UnaryOperation;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow::Borrow`
[INFO] [stdout]  --> src/lex/lex.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::tokens::Token`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use lex::tokens::Token;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lex::Lexer`
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use lex::Lexer;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenType`, `Token`
[INFO] [stdout]  --> src/parse/mod.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::lex::tokens::{Token, TokenType};
[INFO] [stdout]   |                          ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/parse/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Peekable`
[INFO] [stdout]  --> src/parse/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Peekable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::__rt::core::hint::unreachable_unchecked`
[INFO] [stdout]   --> src/parse/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wasm_bindgen::__rt::core::hint::unreachable_unchecked;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::__rt::std::process::exit`
[INFO] [stdout]   --> src/parse/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use wasm_bindgen::__rt::std::process::exit;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0407, E0437, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::errors::Error`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | use crate::errors::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::expression::ExpressionVisitor`
[INFO] [stdout]   --> src/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use crate::ast::expression::ExpressionVisitor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `Ref`
[INFO] [stdout]  --> src/interpreter/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::{Cell, Ref, RefCell};
[INFO] [stdout]   |                 ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Binary`
[INFO] [stdout]   --> src/interpreter/mod.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::fmt::{Binary, Debug, Display, Formatter};
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime`, `UNIX_EPOCH`
[INFO] [stdout]   --> src/interpreter/mod.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter/mod.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Callable(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:136:21
[INFO] [stdout]     |
[INFO] [stdout] 136 |     output: &'a mut std::io::Write,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ops::{Add, Div, Mul, Sub, Try};
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     type Ok = Value;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Try for ExprResult {
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ops::{Add, Div, Mul, Sub, Try};
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     type Ok = Value;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Try for ExprResult {
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/interpreter/mod.rs:37:52
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                                    ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/interpreter/mod.rs:45:28
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn from_error(v: Self::Error) -> Self {
[INFO] [stdout]    |                            ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/interpreter/mod.rs:37:52
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn into_result(self) -> Result<Self::Ok, Self::Error> {
[INFO] [stdout]    |                                                    ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Error` not found for `Self`
[INFO] [stdout]   --> src/interpreter/mod.rs:45:28
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn from_error(v: Self::Error) -> Self {
[INFO] [stdout]    |                            ^^^^^ associated type `Error` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'try_trait_v2'
[INFO] [stdout]   --> src/interpreter/mod.rs:52:19
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from_ok(v: Self::Ok) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #42327 <https://github.com/rust-lang/rust/issues/42327> for more information
[INFO] [stdout]    = help: add `#![feature(try_trait_v2)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0407, E0437, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0407, E0437, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e7a013d60165cee8ff6e3aa39727d6c56b718a3461a8288cfbcef5085d9bc2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a013d60165cee8ff6e3aa39727d6c56b718a3461a8288cfbcef5085d9bc2e1", kill_on_drop: false }`
[INFO] [stdout] e7a013d60165cee8ff6e3aa39727d6c56b718a3461a8288cfbcef5085d9bc2e1