[INFO] cloning repository https://github.com/ramyak-mehra/svm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ramyak-mehra/svm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Framyak-mehra%2Fsvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Framyak-mehra%2Fsvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd526f42eed878d1d5383c325c4e196f9635c9ff
[INFO] checking ramyak-mehra/svm against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Framyak-mehra%2Fsvm" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ramyak-mehra/svm on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ramyak-mehra/svm
[INFO] finished tweaking git repo https://github.com/ramyak-mehra/svm
[INFO] tweaked toml for git repo https://github.com/ramyak-mehra/svm written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ramyak-mehra/svm 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fde0c633ae931602e7a0aec6d1b22bdb4365a505fc91ed03370aa5920e645621
[INFO] running `Command { std: "docker" "start" "-a" "fde0c633ae931602e7a0aec6d1b22bdb4365a505fc91ed03370aa5920e645621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fde0c633ae931602e7a0aec6d1b22bdb4365a505fc91ed03370aa5920e645621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fde0c633ae931602e7a0aec6d1b22bdb4365a505fc91ed03370aa5920e645621", kill_on_drop: false }`
[INFO] [stdout] fde0c633ae931602e7a0aec6d1b22bdb4365a505fc91ed03370aa5920e645621
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94c4cd4745418ee25d6f1a7603aed9cf3f0a177d8e5bf815d875854311aa8970
[INFO] running `Command { std: "docker" "start" "-a" "94c4cd4745418ee25d6f1a7603aed9cf3f0a177d8e5bf815d875854311aa8970", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling instruction v0.1.0 (/opt/rustwide/workdir/instruction)
[INFO] [stdout] warning: the item `proc_macro` is imported redundantly
[INFO] [stdout]  --> instruction/src/lib.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proc_macro::{self, TokenStream};
[INFO] [stdout]   |                  ^^^^ the item `proc_macro` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> instruction/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn;
[INFO] [stdout]   |     ^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking svm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::Token`
[INFO] [stdout]  --> src/token/operand.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bool`, `float`, `int`, `str`, `token::Operand`
[INFO] [stdout]    --> src/token/operand.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 275 |     use crate::{bool, float, int, str, token::Operand};
[INFO] [stdout]     |                 ^^^^  ^^^^^  ^^^  ^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Token`, `operand::Operand`
[INFO] [stdout]   --> src/token/mod.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |     use super::{operand::Operand, Token};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `int`
[INFO] [stdout]  --> src/vm.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     int, stack, tbool,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `default`
[INFO] [stdout]  --> src/vm.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{collections::VecDeque, default};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]    --> src/vm.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     use std::collections::VecDeque;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `data`, `int`, `stack`, `tbool`, `tint`, `token::instruction::*`, `tstr`
[INFO] [stdout]    --> src/vm.rs:181:17
[INFO] [stdout]     |
[INFO] [stdout] 181 |     use crate::{data, int, stack, tbool, tint, token::instruction::*, tstr};
[INFO] [stdout]     |                 ^^^^  ^^^  ^^^^^  ^^^^^  ^^^^  ^^^^^^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Vm`
[INFO] [stdout]    --> src/vm.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::Vm;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Token`
[INFO] [stdout]  --> src/token/operand.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `int`
[INFO] [stdout]  --> src/vm.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     int, stack, tbool,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `default`
[INFO] [stdout]  --> src/vm.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{collections::VecDeque, default};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `data`, `int`
[INFO] [stdout]    --> src/vm.rs:181:17
[INFO] [stdout]     |
[INFO] [stdout] 181 |     use crate::{data, int, stack, tbool, tint, token::instruction::*, tstr};
[INFO] [stdout]     |                 ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/token/operand.rs:254:18
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn add(self, rhs: bool) -> Self::Output {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `variables` and `return_address` are never read
[INFO] [stdout]  --> src/frame.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Frame {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 7 |     variables: HashMap<String, Operand>, // TODO(optimization): Use usize for key
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     return_address: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Frame` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `return_address`, `get`, `set`, and `values` are never used
[INFO] [stdout]   --> src/frame.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Frame {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new(address: usize) -> Frame {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn return_address(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn get(&self, var: String) -> Operand {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn set(&mut self, var: String, val: Operand) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn values(&self) -> Vec<Operand> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vm` is never constructed
[INFO] [stdout]  --> src/vm.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Vm {
[INFO] [stdout]   |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/vm.rs:18:12
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl Vm {
[INFO] [stdout]     | ------- associated items in this implementation
[INFO] [stdout] 18  |     pub fn new(program: Vec<Token>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27  |     pub fn run(&mut self) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33  |     fn step(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39  |     fn current_frame_mut(&mut self) -> &mut Frame {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42  |     fn current_frame(&self) -> &Frame {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46  |     fn execute(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn execute_binary(i: Instruction, d1: Operand, d2: Operand) -> Operand {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn nextToken(&mut self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextToken` should have a snake case name
[INFO] [stdout]    --> src/vm.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn nextToken(&mut self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^ help: convert the identifier to snake case: `next_token`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/token/operand.rs:254:18
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn add(self, rhs: bool) -> Self::Output {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let a = Operand::Int(2);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let a = Operand::Int(2);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `nextToken` should have a snake case name
[INFO] [stdout]    --> src/vm.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn nextToken(&mut self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^ help: convert the identifier to snake case: `next_token`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "94c4cd4745418ee25d6f1a7603aed9cf3f0a177d8e5bf815d875854311aa8970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94c4cd4745418ee25d6f1a7603aed9cf3f0a177d8e5bf815d875854311aa8970", kill_on_drop: false }`
[INFO] [stdout] 94c4cd4745418ee25d6f1a7603aed9cf3f0a177d8e5bf815d875854311aa8970