[INFO] cloning repository https://github.com/philmein23/interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/philmein23/interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilmein23%2Finterpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilmein23%2Finterpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 236b36ee15c4aabd06fd1e889518919c4ec2add0
[INFO] checking philmein23/interpreter against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilmein23%2Finterpreter" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/philmein23/interpreter on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/philmein23/interpreter
[INFO] finished tweaking git repo https://github.com/philmein23/interpreter
[INFO] tweaked toml for git repo https://github.com/philmein23/interpreter written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/philmein23/interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5771e7b5e91f55a3f382335e5c38cf1f309e89cc65841ef4f9f88d495ec00af
[INFO] running `Command { std: "docker" "start" "-a" "b5771e7b5e91f55a3f382335e5c38cf1f309e89cc65841ef4f9f88d495ec00af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5771e7b5e91f55a3f382335e5c38cf1f309e89cc65841ef4f9f88d495ec00af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5771e7b5e91f55a3f382335e5c38cf1f309e89cc65841ef4f9f88d495ec00af", kill_on_drop: false }`
[INFO] [stdout] b5771e7b5e91f55a3f382335e5c38cf1f309e89cc65841ef4f9f88d495ec00af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e015c2d9fca61b089bfa8b47d8310cd4e11799e70812363f398242c109e2e827
[INFO] running `Command { std: "docker" "start" "-a" "e015c2d9fca61b089bfa8b47d8310cd4e11799e70812363f398242c109e2e827", kill_on_drop: false }`
[INFO] [stderr]     Checking interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::token::Token`
[INFO] [stdout]  --> src/ast/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/ast/mod.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expression`, `Statement`, `self`
[INFO] [stdout]  --> src/object/mod.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast::{self, BlockStatement, Expression, Infix, Prefix, Statement};
[INFO] [stdout]   |                  ^^^^                  ^^^^^^^^^^                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/token/mod.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token::Token`
[INFO] [stdout]  --> src/ast/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/ast/mod.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expression`, `Statement`, `self`
[INFO] [stdout]  --> src/object/mod.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast::{self, BlockStatement, Expression, Infix, Prefix, Statement};
[INFO] [stdout]   |                  ^^^^                  ^^^^^^^^^^                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/token/mod.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         _ => Err(EvalError::General("no existence of statement".to_string())),
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval/mod.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         _ => Err(EvalError::General("No existence of expression".to_string())),
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/eval/mod.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |         _ => Ok(Object::Null),
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/object/mod.rs:34:44
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Object::Function(params, body, env) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         _ => Err(EvalError::General("no existence of statement".to_string())),
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval/mod.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         _ => Err(EvalError::General("No existence of expression".to_string())),
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/eval/mod.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |         _ => Ok(Object::Null),
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/repl/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut lexer = Lexer::new(input);
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NotCallable`, `WrongArgumentCount`, and `UnsupportedArguments` are never constructed
[INFO] [stdout]    --> src/object/mod.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub enum EvalError {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 110 |     NotCallable(Object),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 111 |     WrongArgumentCount { expected: usize, given: usize },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 112 |     UnsupportedArguments(String, Vec<Object>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EvalError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expectPeek` should have a snake case name
[INFO] [stdout]    --> src/parser/mod.rs:540:8
[INFO] [stdout]     |
[INFO] [stdout] 540 |     fn expectPeek(&mut self, expected: Token) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^ help: convert the identifier to snake case: `expect_peek`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peekError` should have a snake case name
[INFO] [stdout]    --> src/parser/mod.rs:549:8
[INFO] [stdout]     |
[INFO] [stdout] 549 |     fn peekError(&mut self, token: Token) {
[INFO] [stdout]     |        ^^^^^^^^^ help: convert the identifier to snake case: `peek_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/object/mod.rs:34:44
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Object::Function(params, body, env) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:587:13
[INFO] [stdout]     |
[INFO] [stdout] 587 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:623:13
[INFO] [stdout]     |
[INFO] [stdout] 623 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:646:13
[INFO] [stdout]     |
[INFO] [stdout] 646 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:668:13
[INFO] [stdout]     |
[INFO] [stdout] 668 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:709:13
[INFO] [stdout]     |
[INFO] [stdout] 709 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:768:13
[INFO] [stdout]     |
[INFO] [stdout] 768 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:861:17
[INFO] [stdout]     |
[INFO] [stdout] 861 |             let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/repl/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut lexer = Lexer::new(input);
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NotCallable`, `WrongArgumentCount`, and `UnsupportedArguments` are never constructed
[INFO] [stdout]    --> src/object/mod.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub enum EvalError {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 110 |     NotCallable(Object),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 111 |     WrongArgumentCount { expected: usize, given: usize },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 112 |     UnsupportedArguments(String, Vec<Object>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EvalError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expectPeek` should have a snake case name
[INFO] [stdout]    --> src/parser/mod.rs:540:8
[INFO] [stdout]     |
[INFO] [stdout] 540 |     fn expectPeek(&mut self, expected: Token) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^ help: convert the identifier to snake case: `expect_peek`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peekError` should have a snake case name
[INFO] [stdout]    --> src/parser/mod.rs:549:8
[INFO] [stdout]     |
[INFO] [stdout] 549 |     fn peekError(&mut self, token: Token) {
[INFO] [stdout]     |        ^^^^^^^^^ help: convert the identifier to snake case: `peek_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "e015c2d9fca61b089bfa8b47d8310cd4e11799e70812363f398242c109e2e827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e015c2d9fca61b089bfa8b47d8310cd4e11799e70812363f398242c109e2e827", kill_on_drop: false }`
[INFO] [stdout] e015c2d9fca61b089bfa8b47d8310cd4e11799e70812363f398242c109e2e827
[INFO] checking philmein23/interpreter against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilmein23%2Finterpreter" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/philmein23/interpreter on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/philmein23/interpreter
[INFO] finished tweaking git repo https://github.com/philmein23/interpreter
[INFO] tweaked toml for git repo https://github.com/philmein23/interpreter written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/philmein23/interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78336b1738337f7d2163f54ff6559f58fb506c878b416e17a6046e6d7441db6d
[INFO] running `Command { std: "docker" "start" "-a" "78336b1738337f7d2163f54ff6559f58fb506c878b416e17a6046e6d7441db6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78336b1738337f7d2163f54ff6559f58fb506c878b416e17a6046e6d7441db6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78336b1738337f7d2163f54ff6559f58fb506c878b416e17a6046e6d7441db6d", kill_on_drop: false }`
[INFO] [stdout] 78336b1738337f7d2163f54ff6559f58fb506c878b416e17a6046e6d7441db6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13969ed47997ddce83562523197a429b4a74f413771f02931282edd6d9bcfecb
[INFO] running `Command { std: "docker" "start" "-a" "13969ed47997ddce83562523197a429b4a74f413771f02931282edd6d9bcfecb", kill_on_drop: false }`
[INFO] [stderr]     Checking interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::token::Token`
[INFO] [stdout]  --> src/ast/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/ast/mod.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expression`, `Statement`, `self`
[INFO] [stdout]  --> src/object/mod.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast::{self, BlockStatement, Expression, Infix, Prefix, Statement};
[INFO] [stdout]   |                  ^^^^                  ^^^^^^^^^^                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/token/mod.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token::Token`
[INFO] [stdout]  --> src/ast/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/ast/mod.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expression`, `Statement`, `self`
[INFO] [stdout]  --> src/object/mod.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ast::{self, BlockStatement, Expression, Infix, Prefix, Statement};
[INFO] [stdout]   |                  ^^^^                  ^^^^^^^^^^                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/token/mod.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/lexer/mod.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |                   } else if is_digit(self.ch) {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 132 | |                     let literal = self.read_number();
[INFO] [stdout] 133 | |                     return Token::INT(literal.to_string());
[INFO] [stdout] 134 | |                 } else {
[INFO] [stdout] 135 | |                     return Token::EOF;
[INFO] [stdout] 136 | |                 };
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/lexer/mod.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |                   } else if is_digit(self.ch) {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 132 | |                     let literal = self.read_number();
[INFO] [stdout] 133 | |                     return Token::INT(literal.to_string());
[INFO] [stdout] 134 | |                 } else {
[INFO] [stdout] 135 | |                     return Token::EOF;
[INFO] [stdout] 136 | |                 };
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         _ => Err(EvalError::General("no existence of statement".to_string())),
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval/mod.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         _ => Err(EvalError::General("No existence of expression".to_string())),
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/eval/mod.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |         _ => Ok(Object::Null),
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/object/mod.rs:34:44
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Object::Function(params, body, env) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         _ => Err(EvalError::General("no existence of statement".to_string())),
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/eval/mod.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         _ => Err(EvalError::General("No existence of expression".to_string())),
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/eval/mod.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |         _ => Ok(Object::Null),
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/repl/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut lexer = Lexer::new(input);
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interpreter` (bin "interpreter") due to 2 previous errors; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/object/mod.rs:34:44
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Object::Function(params, body, env) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:587:13
[INFO] [stdout]     |
[INFO] [stdout] 587 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:623:13
[INFO] [stdout]     |
[INFO] [stdout] 623 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:646:13
[INFO] [stdout]     |
[INFO] [stdout] 646 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:668:13
[INFO] [stdout]     |
[INFO] [stdout] 668 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:709:13
[INFO] [stdout]     |
[INFO] [stdout] 709 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:768:13
[INFO] [stdout]     |
[INFO] [stdout] 768 |         let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:861:17
[INFO] [stdout]     |
[INFO] [stdout] 861 |             let mut lexer = Lexer::new(input.to_string());
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/repl/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut lexer = Lexer::new(input);
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interpreter` (bin "interpreter" test) due to 2 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "13969ed47997ddce83562523197a429b4a74f413771f02931282edd6d9bcfecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13969ed47997ddce83562523197a429b4a74f413771f02931282edd6d9bcfecb", kill_on_drop: false }`
[INFO] [stdout] 13969ed47997ddce83562523197a429b4a74f413771f02931282edd6d9bcfecb