[INFO] cloning repository https://github.com/trevarj/roxt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trevarj/roxt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevarj%2Froxt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevarj%2Froxt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01dba387a9df83688586280d208da54a6b55726f
[INFO] testing trevarj/roxt against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevarj%2Froxt" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/trevarj/roxt on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/trevarj/roxt
[INFO] finished tweaking git repo https://github.com/trevarj/roxt
[INFO] tweaked toml for git repo https://github.com/trevarj/roxt written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/trevarj/roxt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argh v0.1.3
[INFO] [stderr]   Downloaded argh_shared v0.1.1
[INFO] [stderr]   Downloaded argh_derive v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 558273de64d63d2067249c32ebb9b216b25b8558adf42d95c71840b0d03a1c5c
[INFO] running `Command { std: "docker" "start" "-a" "558273de64d63d2067249c32ebb9b216b25b8558adf42d95c71840b0d03a1c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "558273de64d63d2067249c32ebb9b216b25b8558adf42d95c71840b0d03a1c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "558273de64d63d2067249c32ebb9b216b25b8558adf42d95c71840b0d03a1c5c", kill_on_drop: false }`
[INFO] [stdout] 558273de64d63d2067249c32ebb9b216b25b8558adf42d95c71840b0d03a1c5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d0296b887af9fcfbe145f4e789f8602de962361770241f368dce76bcd599e8b
[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" "2d0296b887af9fcfbe145f4e789f8602de962361770241f368dce76bcd599e8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling argh v0.1.3
[INFO] [stderr]    Compiling roxt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::tokens::TokenType`
[INFO] [stdout]  --> src/interpreter/resolver.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::tokens::TokenType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `InterpretError`
[INFO] [stdout]  --> src/bytecode/main.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | use vm::{InterpretError, VM};
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/bytecode/compiler.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UpValue`
[INFO] [stdout]  --> src/bytecode/vm.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |     compiler::{Compiler, UpValue},
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:180:39
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 if let Atom::Function(id, params, stmt, closure) = callee {
[INFO] [stdout]     |                                       ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:413:35
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 (Atom::Identifier(a, _), Atom::Identifier(b, _)) => todo!(),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:413:59
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 (Atom::Identifier(a, _), Atom::Identifier(b, _)) => todo!(),
[INFO] [stdout]     |                                                           ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]   --> src/interpreter/resolver.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             Expr::Binary(lhs, op, rhs) => {
[INFO] [stdout]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/interpreter/resolver.rs:136:38
[INFO] [stdout]     |
[INFO] [stdout] 136 |             if let Expr::Binary(lhs, op, rhs) = expr {
[INFO] [stdout]     |                                      ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnsupportedAssignment`
[INFO] [stdout]   --> src/interpreter/interpreter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     UnsupportedAssignment { type_a: String, type_b: String },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SyntaxError`
[INFO] [stdout]  --> src/interpreter/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     SyntaxError,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UsingVarInOwnInitializer`
[INFO] [stdout]   --> src/interpreter/resolver.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     UsingVarInOwnInitializer { id: String },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/interpreter/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]     --> src/bytecode/compiler.rs:1028:32
[INFO] [stdout]      |
[INFO] [stdout] 1028 |     for (idx, (l_ident, depth, is_captured)) in locals.iter().enumerate().rev() {
[INFO] [stdout]      |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/bytecode/compiler.rs:143:47
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn make_constant(&mut self, value: Value, line: usize) -> Result<usize, CompilerError> {
[INFO] [stdout]     |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]    --> src/bytecode/compiler.rs:340:32
[INFO] [stdout]     |
[INFO] [stdout] 340 |             for (ident, depth, is_captured) in self.state.locals.iter().rev() {
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]    --> src/bytecode/compiler.rs:387:32
[INFO] [stdout]     |
[INFO] [stdout] 387 |             for (ident, depth, is_captured) in self.state.locals.iter().rev() {
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]     --> src/bytecode/compiler.rs:1013:13
[INFO] [stdout]      |
[INFO] [stdout] 1013 |         let line = self.peek()?.line();
[INFO] [stdout]      |             ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.73s
[INFO] running `Command { std: "docker" "inspect" "2d0296b887af9fcfbe145f4e789f8602de962361770241f368dce76bcd599e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d0296b887af9fcfbe145f4e789f8602de962361770241f368dce76bcd599e8b", kill_on_drop: false }`
[INFO] [stdout] 2d0296b887af9fcfbe145f4e789f8602de962361770241f368dce76bcd599e8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5cef933f8fd9ad6e10c30797f6695ff9849ed0ba1a625f754000ded6d9b67ed
[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" "d5cef933f8fd9ad6e10c30797f6695ff9849ed0ba1a625f754000ded6d9b67ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling roxt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::tokens::TokenType`
[INFO] [stdout]  --> src/interpreter/resolver.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::tokens::TokenType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/interpreter/resolver.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `interpreter::Interpreter`
[INFO] [stdout]    --> src/interpreter/resolver.rs:179:17
[INFO] [stdout]     |
[INFO] [stdout] 179 |     use crate::{interpreter::Interpreter, lexer::*, parser::*};
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `InterpretError`
[INFO] [stdout]  --> src/bytecode/main.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | use vm::{InterpretError, VM};
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/bytecode/compiler.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `chunk::OpCode`, `vm::VM`
[INFO] [stdout]     --> src/bytecode/compiler.rs:1045:17
[INFO] [stdout]      |
[INFO] [stdout] 1045 |     use crate::{chunk::OpCode, memory::Memory, vm::VM};
[INFO] [stdout]      |                 ^^^^^^^^^^^^^                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UpValue`
[INFO] [stdout]  --> src/bytecode/vm.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |     compiler::{Compiler, UpValue},
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:180:39
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 if let Atom::Function(id, params, stmt, closure) = callee {
[INFO] [stdout]     |                                       ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:413:35
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 (Atom::Identifier(a, _), Atom::Identifier(b, _)) => todo!(),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:413:59
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 (Atom::Identifier(a, _), Atom::Identifier(b, _)) => todo!(),
[INFO] [stdout]     |                                                           ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:674:13
[INFO] [stdout]     |
[INFO] [stdout] 674 |         let result = interpreter.interpret(program).unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]   --> src/interpreter/resolver.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             Expr::Binary(lhs, op, rhs) => {
[INFO] [stdout]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/interpreter/resolver.rs:136:38
[INFO] [stdout]     |
[INFO] [stdout] 136 |             if let Expr::Binary(lhs, op, rhs) = expr {
[INFO] [stdout]     |                                      ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]     --> src/bytecode/compiler.rs:1028:32
[INFO] [stdout]      |
[INFO] [stdout] 1028 |     for (idx, (l_ident, depth, is_captured)) in locals.iter().enumerate().rev() {
[INFO] [stdout]      |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/bytecode/compiler.rs:143:47
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn make_constant(&mut self, value: Value, line: usize) -> Result<usize, CompilerError> {
[INFO] [stdout]     |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]    --> src/bytecode/compiler.rs:340:32
[INFO] [stdout]     |
[INFO] [stdout] 340 |             for (ident, depth, is_captured) in self.state.locals.iter().rev() {
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]    --> src/bytecode/compiler.rs:387:32
[INFO] [stdout]     |
[INFO] [stdout] 387 |             for (ident, depth, is_captured) in self.state.locals.iter().rev() {
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]     --> src/bytecode/compiler.rs:1013:13
[INFO] [stdout]      |
[INFO] [stdout] 1013 |         let line = self.peek()?.line();
[INFO] [stdout]      |             ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnsupportedAssignment`
[INFO] [stdout]   --> src/interpreter/interpreter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     UnsupportedAssignment { type_a: String, type_b: String },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SyntaxError`
[INFO] [stdout]  --> src/interpreter/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     SyntaxError,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UsingVarInOwnInitializer`
[INFO] [stdout]   --> src/interpreter/resolver.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     UsingVarInOwnInitializer { id: String },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parser_setup`
[INFO] [stdout]    --> src/interpreter/resolver.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn parser_setup(input: &str) -> Parser {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/interpreter/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "d5cef933f8fd9ad6e10c30797f6695ff9849ed0ba1a625f754000ded6d9b67ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5cef933f8fd9ad6e10c30797f6695ff9849ed0ba1a625f754000ded6d9b67ed", kill_on_drop: false }`
[INFO] [stdout] d5cef933f8fd9ad6e10c30797f6695ff9849ed0ba1a625f754000ded6d9b67ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3c5b772ae44994679548ef536859104bb5f35e7cf9a2f1a86e7d5d23c20cbcb8
[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" "3c5b772ae44994679548ef536859104bb5f35e7cf9a2f1a86e7d5d23c20cbcb8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `super::tokens::TokenType`
[INFO] [stdout] running 47 tests
[INFO] [stderr]  --> src/interpreter/resolver.rs:2:5
[INFO] [stdout] test interpreter::tests::test_bang_bool ... ok
[INFO] [stderr]   |
[INFO] [stdout] test interpreter::tests::test_block_scope ... ok
[INFO] [stderr] 2 | use super::tokens::TokenType;
[INFO] [stdout] test interpreter::tests::test_chapter11_1_bindings ... ok
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test lexer::tests::test_double_tokens ... ok
[INFO] [stderr]   |
[INFO] [stdout] test interpreter::tests::test_while_loop ... ok
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] test interpreter::tests::test_less_than ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/interpreter/resolver.rs:178:9
[INFO] [stderr]     |
[INFO] [stderr] 178 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `interpreter::Interpreter`
[INFO] [stderr]    --> src/interpreter/resolver.rs:179:17
[INFO] [stderr]     |
[INFO] [stderr] 179 |     use crate::{interpreter::Interpreter, lexer::*, parser::*};
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]    --> src/interpreter/interpreter.rs:180:39
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 if let Atom::Function(id, params, stmt, closure) = callee {
[INFO] [stderr]     |                                       ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/interpreter/interpreter.rs:413:35
[INFO] [stderr]     |
[INFO] [stderr] 413 |                 (Atom::Identifier(a, _), Atom::Identifier(b, _)) => todo!(),
[INFO] [stderr]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/interpreter/interpreter.rs:413:59
[INFO] [stderr]     |
[INFO] [stderr] 413 |                 (Atom::Identifier(a, _), Atom::Identifier(b, _)) => todo!(),
[INFO] [stderr]     |                                                           ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `env`
[INFO] [stderr]    --> src/interpreter/interpreter.rs:256:9
[INFO] [stderr]     |
[INFO] [stderr] 256 |         env: &Env,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/interpreter/interpreter.rs:674:13
[INFO] [stderr]     |
[INFO] [stderr] 674 |         let result = interpreter.interpret(program).unwrap();
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]   --> src/interpreter/resolver.rs:76:31
[INFO] [stderr]    |
[INFO] [stderr] 76 |             Expr::Binary(lhs, op, rhs) => {
[INFO] [stderr]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/interpreter/resolver.rs:136:38
[INFO] [stderr]     |
[INFO] [stderr] 136 |             if let Expr::Binary(lhs, op, rhs) = expr {
[INFO] [stderr]     |                                      ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UnsupportedAssignment`
[INFO] [stderr]   --> src/interpreter/interpreter.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     UnsupportedAssignment { type_a: String, type_b: String },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SyntaxError`
[INFO] [stderr]  --> src/interpreter/parser.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     SyntaxError,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UsingVarInOwnInitializer`
[INFO] [stderr]   --> src/interpreter/resolver.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     UsingVarInOwnInitializer { id: String },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parser_setup`
[INFO] [stderr]    --> src/interpreter/resolver.rs:180:8
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn parser_setup(input: &str) -> Parser {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/interpreter/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(peekable_next_if)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `InterpretError`
[INFO] [stderr]  --> src/bytecode/main.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 | use vm::{InterpretError, VM};
[INFO] [stderr]   |          ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::convert::TryInto`
[INFO] [stderr]  --> src/bytecode/compiler.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::convert::TryInto;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `chunk::OpCode`, `vm::VM`
[INFO] [stderr]     --> src/bytecode/compiler.rs:1045:17
[INFO] [stderr]      |
[INFO] [stderr] 1045 |     use crate::{chunk::OpCode, memory::Memory, vm::VM};
[INFO] [stderr]      |                 ^^^^^^^^^^^^^                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `UpValue`
[INFO] [stderr]  --> src/bytecode/vm.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 |     compiler::{Compiler, UpValue},
[INFO] [stderr]   |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is_captured`
[INFO] [stderr]     --> src/bytecode/compiler.rs:1028:32
[INFO] [stderr]      |
[INFO] [stderr] 1028 |     for (idx, (l_ident, depth, is_captured)) in locals.iter().enumerate().rev() {
[INFO] [stderr]      |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/bytecode/compiler.rs:143:47
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn make_constant(&mut self, value: Value, line: usize) -> Result<usize, CompilerError> {
[INFO] [stderr]     |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is_captured`
[INFO] [stderr]    --> src/bytecode/compiler.rs:340:32
[INFO] [stderr]     |
[INFO] [stderr] 340 |             for (ident, depth, is_captured) in self.state.locals.iter().rev() {
[INFO] [stderr]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is_captured`
[INFO] [stderr]    --> src/bytecode/compiler.rs:387:32
[INFO] [stderr]     |
[INFO] [stderr] 387 |             for (ident, depth, is_captured) in self.state.locals.iter().rev() {
[INFO] [stderr]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]     --> src/bytecode/compiler.rs:1013:13
[INFO] [stderr]      |
[INFO] [stderr] 1013 |         let line = self.peek()?.line();
[INFO] [stderr]      |             ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/roxt-b28f942265a1e94c)
[INFO] [stdout] test interpreter::tests::test_chapter8_challenge2 ... ok
[INFO] [stdout] test interpreter::tests::test_for_loop ... ok
[INFO] [stdout] test interpreter::tests::test_function_declaration_and_call ... ok
[INFO] [stdout] test interpreter::tests::test_chapter8_challenge3 ... ok
[INFO] [stdout] test lexer::tests::test_invalid_number_format ... ok
[INFO] [stdout] test lexer::tests::test_literal_tokens ... ok
[INFO] [stdout] test lexer::tests::test_line_count ... ok
[INFO] [stdout] test lexer::tests::test_mixed_tokens ... ok
[INFO] [stdout] test lexer::tests::test_single_tokens ... ok
[INFO] [stdout] test interpreter::tests::test_string_concat ... ok
[INFO] [stdout] test interpreter::tests::test_grouped_expr ... ok
[INFO] [stdout] test interpreter::tests::test_if_else_statment ... ok
[INFO] [stdout] test interpreter::tests::test_logical_operators ... ok
[INFO] [stdout] test interpreter::tests::test_var_declaration_and_print ... ok
[INFO] [stdout] test lexer::tests::test_unexpected_tokens ... ok
[INFO] [stdout] test parser::test::test_assign_identifier ... ok
[INFO] [stdout] test parser::test::test_assign_identifier_expr ... ok
[INFO] [stdout] test interpreter::tests::test_closure ... ok
[INFO] [stdout] test parser::test::test_for_loop ... ok
[INFO] [stdout] test parser::test::test_function_call ... ok
[INFO] [stdout] test interpreter::tests::test_nested_grouped_expr ... ok
[INFO] [stdout] test interpreter::tests::test_simple_expression_eval ... ok
[INFO] [stdout] test lexer::tests::test_reserved_tokens ... ok
[INFO] [stdout] test parser::test::test_block ... ok
[INFO] [stdout] test parser::test::test_function_composition_expr ... ok
[INFO] [stdout] test parser::test::test_function_call_within_expr ... ok
[INFO] [stdout] test parser::test::test_function_currying ... ok
[INFO] [stdout] test parser::test::test_function_member_call_combo ... ok
[INFO] [stdout] test parser::test::test_function_declaration ... ok
[INFO] [stdout] test parser::test::test_syntax_error_doubleop ... ok
[INFO] [stdout] test parser::test::test_if_else ... ok
[INFO] [stdout] test parser::test::test_while_loop ... ok
[INFO] [stdout] test parser::test::test_var_declaration ... ok
[INFO] [stdout] test parser::test::test_syntax_error_postfix_plusplus ... ok
[INFO] [stdout] test parser::test::test_multiassign_expr ... ok
[INFO] [stdout] test parser::test::test_syntax_error_lefthand_op ... ok
[INFO] [stdout] test parser::test::test_parse_grouping_expression ... ok
[INFO] [stdout] test parser::test::test_parse_conditional_expression ... ok
[INFO] [stdout] test parser::test::test_syntax_error_trailingop ... ok
[INFO] [stdout] test parser::test::test_simple_parse_expression ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/roxtc-d728b888097e5132)
[INFO] [stdout] test interpreter::tests::test_fibonacci ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.10s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test chunk::tests::simple_opcode_print ... ok
[INFO] [stdout] test compiler::tests::test_basic_expression ... ok
[INFO] [stdout] test vm::tests::test_closed_over_loop ... ok
[INFO] [stdout] test chunk::tests::test_size_of_ops ... ok
[INFO] [stdout] test lexer::tests::test_lexer ... ok
[INFO] [stdout] test vm::tests::test_basic ... ok
[INFO] [stdout] test vm::tests::test_class ... ok
[INFO] [stdout] test vm::tests::test_closed_over_variable ... ok
[INFO] [stdout] test vm::tests::test_function_call ... ok
[INFO] [stdout] test vm::tests::test_upvalues ... ok
[INFO] [stdout] test vm::tests::test_closure ... ok
[INFO] [stdout] test vm::tests::test_fib ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 19.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c5b772ae44994679548ef536859104bb5f35e7cf9a2f1a86e7d5d23c20cbcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c5b772ae44994679548ef536859104bb5f35e7cf9a2f1a86e7d5d23c20cbcb8", kill_on_drop: false }`
[INFO] [stdout] 3c5b772ae44994679548ef536859104bb5f35e7cf9a2f1a86e7d5d23c20cbcb8