[INFO] fetching crate resurgence 0.1.8...
[INFO] building resurgence-0.1.8 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate resurgence 0.1.8 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate resurgence 0.1.8
[INFO] finished tweaking crates.io crate resurgence 0.1.8
[INFO] tweaked toml for crates.io crate resurgence 0.1.8 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate resurgence 0.1.8 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64d8785f2d9aef3dbf969d1168a25cf1f4191e9fac2e0ca19ae0d6fa33be5f94
[INFO] running `Command { std: "docker" "start" "-a" "64d8785f2d9aef3dbf969d1168a25cf1f4191e9fac2e0ca19ae0d6fa33be5f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64d8785f2d9aef3dbf969d1168a25cf1f4191e9fac2e0ca19ae0d6fa33be5f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64d8785f2d9aef3dbf969d1168a25cf1f4191e9fac2e0ca19ae0d6fa33be5f94", kill_on_drop: false }`
[INFO] [stdout] 64d8785f2d9aef3dbf969d1168a25cf1f4191e9fac2e0ca19ae0d6fa33be5f94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b688bb976dd6cfa9db15cfce72efc759b6c845c2599cfea41f781c0979a8df59
[INFO] running `Command { std: "docker" "start" "-a" "b688bb976dd6cfa9db15cfce72efc759b6c845c2599cfea41f781c0979a8df59", kill_on_drop: false }`
[INFO] [stderr]    Compiling resurgence v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `create_constant_double`
[INFO] [stdout]  --> src/internal/interpreter/instruction/math.rs:1:105
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Interpreter, objects::register::{Register, RegisterLocation}, objects::constant::{Constant, create_constant_double}};
[INFO] [stdout]   |                                                                                                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instruction` is never used
[INFO] [stdout]   --> src/objects/instruction.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum Instruction {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_constant_int` is never used
[INFO] [stdout]    --> src/objects/constant.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub fn create_constant_int(init_val: &i64) -> Constant {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_constant_string` is never used
[INFO] [stdout]    --> src/objects/constant.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn create_constant_string(init_val: &str) -> Constant {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_constant_bool` is never used
[INFO] [stdout]    --> src/objects/constant.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub fn create_constant_bool(init_val: &bool) -> Constant {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CodeHolder` is never constructed
[INFO] [stdout]  --> src/objects/codeholder.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct CodeHolder {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ExecutionEngine` is never used
[INFO] [stdout]  --> src/internal/execution_engine.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait ExecutionEngine {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CodeBuilder` is never constructed
[INFO] [stdout]  --> src/api/level_1/mod.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct CodeBuilder<'a> {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `generate_alloc`, `generate_free`, `generate_jump`, and `generate_call` are never used
[INFO] [stdout]   --> src/api/level_1/generate_instruction.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl CodeBuilder<'_> {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout]  6 |     pub fn generate_alloc(&mut self, block_count: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  9 |     pub fn generate_free(&mut self, block_count: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn generate_jump(&mut self, operation_count: i64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn generate_call(&mut self, function_addr: &String) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `create_label` is never used
[INFO] [stdout]  --> src/api/level_1/abstraction.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl CodeBuilder<'_> {
[INFO] [stdout]   | -------------------- method in this implementation
[INFO] [stdout] 4 |     pub fn create_label(&mut self, name: String) {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "b688bb976dd6cfa9db15cfce72efc759b6c845c2599cfea41f781c0979a8df59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b688bb976dd6cfa9db15cfce72efc759b6c845c2599cfea41f781c0979a8df59", kill_on_drop: false }`
[INFO] [stdout] b688bb976dd6cfa9db15cfce72efc759b6c845c2599cfea41f781c0979a8df59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56474a8edf0a68289cd840220153498c7c68e42d733ae315305ec2f44f776de4
[INFO] running `Command { std: "docker" "start" "-a" "56474a8edf0a68289cd840220153498c7c68e42d733ae315305ec2f44f776de4", kill_on_drop: false }`
[INFO] [stderr]    Compiling resurgence v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `create_constant_double`
[INFO] [stdout]  --> src/internal/interpreter/instruction/math.rs:1:105
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Interpreter, objects::register::{Register, RegisterLocation}, objects::constant::{Constant, create_constant_double}};
[INFO] [stdout]   |                                                                                                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instruction` is never used
[INFO] [stdout]   --> src/objects/instruction.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum Instruction {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CodeHolder` is never constructed
[INFO] [stdout]  --> src/objects/codeholder.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct CodeHolder {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ExecutionEngine` is never used
[INFO] [stdout]  --> src/internal/execution_engine.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait ExecutionEngine {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CodeBuilder` is never constructed
[INFO] [stdout]  --> src/api/level_1/mod.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct CodeBuilder<'a> {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `generate_alloc`, `generate_free`, `generate_jump`, and `generate_call` are never used
[INFO] [stdout]   --> src/api/level_1/generate_instruction.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl CodeBuilder<'_> {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout]  6 |     pub fn generate_alloc(&mut self, block_count: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  9 |     pub fn generate_free(&mut self, block_count: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn generate_jump(&mut self, operation_count: i64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn generate_call(&mut self, function_addr: &String) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `create_label` is never used
[INFO] [stdout]  --> src/api/level_1/abstraction.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl CodeBuilder<'_> {
[INFO] [stdout]   | -------------------- method in this implementation
[INFO] [stdout] 4 |     pub fn create_label(&mut self, name: String) {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "56474a8edf0a68289cd840220153498c7c68e42d733ae315305ec2f44f776de4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56474a8edf0a68289cd840220153498c7c68e42d733ae315305ec2f44f776de4", kill_on_drop: false }`
[INFO] [stdout] 56474a8edf0a68289cd840220153498c7c68e42d733ae315305ec2f44f776de4