[INFO] cloning repository https://github.com/richwandell/rustjs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/richwandell/rustjs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichwandell%2Frustjs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichwandell%2Frustjs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11dab4fb43817c73f05814e68b46ed13af33abbe
[INFO] checking richwandell/rustjs against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichwandell%2Frustjs" "/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/richwandell/rustjs on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/richwandell/rustjs
[INFO] finished tweaking git repo https://github.com/richwandell/rustjs
[INFO] tweaked toml for git repo https://github.com/richwandell/rustjs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/richwandell/rustjs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] f733d5096aab2781be76d6e7eff1e628b756064ec278bf6f8aaa6ee769fe1db6
[INFO] running `Command { std: "docker" "start" "-a" "f733d5096aab2781be76d6e7eff1e628b756064ec278bf6f8aaa6ee769fe1db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f733d5096aab2781be76d6e7eff1e628b756064ec278bf6f8aaa6ee769fe1db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f733d5096aab2781be76d6e7eff1e628b756064ec278bf6f8aaa6ee769fe1db6", kill_on_drop: false }`
[INFO] [stdout] f733d5096aab2781be76d6e7eff1e628b756064ec278bf6f8aaa6ee769fe1db6
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] cf52c3b564c6cae1227d0c621d8fd8ee97b4a119175a7b580f6dc5d5e868bf54
[INFO] running `Command { std: "docker" "start" "-a" "cf52c3b564c6cae1227d0c621d8fd8ee97b4a119175a7b580f6dc5d5e868bf54", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rustjs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::lexer::Lexer`
[INFO] [stdout]  --> src/compiler/tests/math.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::lexer::Lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::parser::Parser`
[INFO] [stdout]  --> src/compiler/tests/math.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::parser::parser::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Compiler`
[INFO] [stdout]  --> src/compiler/tests/math.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::compiler::compiler::{Compiler};
[INFO] [stdout]   |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::op_codes::Op`
[INFO] [stdout]  --> src/compiler/tests/math.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::compiler::op_codes::Op;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/compiler/tests/variables.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::compiler::Compiler`
[INFO] [stdout]  --> src/compiler/tests/variables.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::compiler::compiler::Compiler;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::op_codes::Op`
[INFO] [stdout]  --> src/compiler/tests/variables.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::compiler::op_codes::Op;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lexer::lexer::Lexer`
[INFO] [stdout]  --> src/compiler/tests/variables.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::lexer::lexer::Lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::parser::Parser`
[INFO] [stdout]  --> src/compiler/tests/variables.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::parser::parser::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lexer::lexer::Lexer`
[INFO] [stdout]  --> src/compiler/tests/functions.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::lexer::Lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::parser::Parser`
[INFO] [stdout]  --> src/compiler/tests/functions.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::parser::parser::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::compiler::Compiler`
[INFO] [stdout]  --> src/compiler/tests/functions.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::compiler::compiler::Compiler;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::op_codes::Op`
[INFO] [stdout]  --> src/compiler/tests/functions.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::compiler::op_codes::Op;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/compiler/tests/for_statements.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::compiler::Compiler`
[INFO] [stdout]  --> src/compiler/tests/for_statements.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::compiler::compiler::Compiler;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lexer::lexer::Lexer`
[INFO] [stdout]  --> src/compiler/tests/for_statements.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::lexer::lexer::Lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::parser::Parser`
[INFO] [stdout]  --> src/compiler/tests/for_statements.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::parser::parser::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::compiler::op_codes::Op`
[INFO] [stdout]  --> src/compiler/tests/for_statements.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::compiler::op_codes::Op;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Compiler`
[INFO] [stdout]  --> src/compiler/compiler.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct Compiler {
[INFO] [stdout]   |                   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/compiler/compiler.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub(crate) fn new() -> Compiler {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `visit_binop`
[INFO] [stdout]   --> src/compiler/compiler.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn visit_binop(&mut self, a: Expression, op: Operator, b: Expression) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `visit_ex`
[INFO] [stdout]   --> src/compiler/compiler.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn visit_ex(&mut self, ex: Expression) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `visit_st`
[INFO] [stdout]   --> src/compiler/compiler.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn visit_st(&mut self, st: Statement) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `visit`
[INFO] [stdout]    --> src/compiler/compiler.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn visit(&mut self, item: JSItem) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compile`
[INFO] [stdout]    --> src/compiler/compiler.rs:123:19
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub(crate) fn compile(&mut self, ast: JSItem) {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.42s
[INFO] running `Command { std: "docker" "inspect" "cf52c3b564c6cae1227d0c621d8fd8ee97b4a119175a7b580f6dc5d5e868bf54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf52c3b564c6cae1227d0c621d8fd8ee97b4a119175a7b580f6dc5d5e868bf54", kill_on_drop: false }`
[INFO] [stdout] cf52c3b564c6cae1227d0c621d8fd8ee97b4a119175a7b580f6dc5d5e868bf54