[INFO] cloning repository https://github.com/BD-98/rusty-lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BD-98/rusty-lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBD-98%2Frusty-lox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBD-98%2Frusty-lox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a0a5c092652256d2e7f15482105c00d2b6ecc6f
[INFO] checking BD-98/rusty-lox against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBD-98%2Frusty-lox" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BD-98/rusty-lox on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BD-98/rusty-lox
[INFO] finished tweaking git repo https://github.com/BD-98/rusty-lox
[INFO] tweaked toml for git repo https://github.com/BD-98/rusty-lox written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/BD-98/rusty-lox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] d622dafd86a2089206decc1fd4589495af2c7688b66466e622931d258e50ddd4
[INFO] running `Command { std: "docker" "start" "-a" "d622dafd86a2089206decc1fd4589495af2c7688b66466e622931d258e50ddd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d622dafd86a2089206decc1fd4589495af2c7688b66466e622931d258e50ddd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d622dafd86a2089206decc1fd4589495af2c7688b66466e622931d258e50ddd4", kill_on_drop: false }`
[INFO] [stdout] d622dafd86a2089206decc1fd4589495af2c7688b66466e622931d258e50ddd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d3217331c83963c1266a6a822be24e419c3ea9363983a69c811393571171f66
[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" "1d3217331c83963c1266a6a822be24e419c3ea9363983a69c811393571171f66", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rusty-lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/chunk.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new() -> Chunk {
[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: `write_chunk`
[INFO] [stdout]   --> src/chunk.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn write_chunk(&mut self, op: Opcode, line: u64) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_constant`
[INFO] [stdout]   --> src/chunk.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn add_constant(&mut self, value: Value) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `VM`
[INFO] [stdout]   --> src/vm.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct VM {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `interpret`
[INFO] [stdout]   --> src/vm.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn interpret(&mut self) -> InterpretResult {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/vm.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn run(&mut self) -> InterpretResult {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Okay`
[INFO] [stdout]   --> src/vm.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Okay,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CompileError`
[INFO] [stdout]   --> src/vm.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     CompileError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RuntimeError`
[INFO] [stdout]   --> src/vm.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     RuntimeError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/chunk.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new() -> Chunk {
[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: `write_chunk`
[INFO] [stdout]   --> src/chunk.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn write_chunk(&mut self, op: Opcode, line: u64) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_constant`
[INFO] [stdout]   --> src/chunk.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn add_constant(&mut self, value: Value) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `VM`
[INFO] [stdout]   --> src/vm.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct VM {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `interpret`
[INFO] [stdout]   --> src/vm.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn interpret(&mut self) -> InterpretResult {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/vm.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn run(&mut self) -> InterpretResult {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Okay`
[INFO] [stdout]   --> src/vm.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Okay,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CompileError`
[INFO] [stdout]   --> src/vm.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     CompileError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RuntimeError`
[INFO] [stdout]   --> src/vm.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     RuntimeError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "1d3217331c83963c1266a6a822be24e419c3ea9363983a69c811393571171f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d3217331c83963c1266a6a822be24e419c3ea9363983a69c811393571171f66", kill_on_drop: false }`
[INFO] [stdout] 1d3217331c83963c1266a6a822be24e419c3ea9363983a69c811393571171f66