[INFO] cloning repository https://github.com/chkimes/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chkimes/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchkimes%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchkimes%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82f97fbb8ad0b3f259a36bb1b496aa2c30e818e8
[INFO] checking chkimes/rlox against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchkimes%2Frlox" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chkimes/rlox on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chkimes/rlox
[INFO] finished tweaking git repo https://github.com/chkimes/rlox
[INFO] tweaked toml for git repo https://github.com/chkimes/rlox written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chkimes/rlox 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c1a352e283779e3eca74710bea0bfbdde413d2548ab32e37125f4fce137c5f9
[INFO] running `Command { std: "docker" "start" "-a" "1c1a352e283779e3eca74710bea0bfbdde413d2548ab32e37125f4fce137c5f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c1a352e283779e3eca74710bea0bfbdde413d2548ab32e37125f4fce137c5f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c1a352e283779e3eca74710bea0bfbdde413d2548ab32e37125f4fce137c5f9", kill_on_drop: false }`
[INFO] [stdout] 1c1a352e283779e3eca74710bea0bfbdde413d2548ab32e37125f4fce137c5f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2208a01ca1c7a185b5a2982f4916c0ea1127d48a1ee825fe540d6f71ff80b499
[INFO] running `Command { std: "docker" "start" "-a" "2208a01ca1c7a185b5a2982f4916c0ea1127d48a1ee825fe540d6f71ff80b499", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `emit_bytes` is never used
[INFO] [stdout]    --> src/compiler.rs:222:8
[INFO] [stdout]     |
[INFO] [stdout] 85  | impl<'a> Compiler<'a> {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 222 |     fn emit_bytes(&mut self, byte1: u8, byte2: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `emit_bytes` is never used
[INFO] [stdout]    --> src/compiler.rs:222:8
[INFO] [stdout]     |
[INFO] [stdout] 85  | impl<'a> Compiler<'a> {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 222 |     fn emit_bytes(&mut self, byte1: u8, byte2: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `values` is never read
[INFO] [stdout]  --> src/memory.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Heap {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 4 |     values: Vec<Box<dyn Any>>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `manage` and `clear` are never used
[INFO] [stdout]   --> src/memory.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Heap {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn manage<T: 'static>(&mut self, obj: T) -> Ref<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `peek` and `free_objects` are never used
[INFO] [stdout]    --> src/vm.rs:53:8
[INFO] [stdout]     |
[INFO] [stdout] 18  | impl VM {
[INFO] [stdout]     | ------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53  |     fn peek(&mut self, distance: usize) -> Value {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn free_objects(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `values` is never read
[INFO] [stdout]  --> src/memory.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Heap {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 4 |     values: Vec<Box<dyn Any>>,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `manage` and `clear` are never used
[INFO] [stdout]   --> src/memory.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Heap {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn manage<T: 'static>(&mut self, obj: T) -> Ref<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `peek` and `free_objects` are never used
[INFO] [stdout]    --> src/vm.rs:53:8
[INFO] [stdout]     |
[INFO] [stdout] 18  | impl VM {
[INFO] [stdout]     | ------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53  |     fn peek(&mut self, distance: usize) -> Value {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn free_objects(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "2208a01ca1c7a185b5a2982f4916c0ea1127d48a1ee825fe540d6f71ff80b499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2208a01ca1c7a185b5a2982f4916c0ea1127d48a1ee825fe540d6f71ff80b499", kill_on_drop: false }`
[INFO] [stdout] 2208a01ca1c7a185b5a2982f4916c0ea1127d48a1ee825fe540d6f71ff80b499