[INFO] cloning repository https://github.com/rishit-khandelwal/vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rishit-khandelwal/vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frishit-khandelwal%2Fvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frishit-khandelwal%2Fvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68e7b7c516590640ffe835d98666cac0831022bc
[INFO] testing rishit-khandelwal/vm against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frishit-khandelwal%2Fvm" "/workspace/builds/worker-80/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rishit-khandelwal/vm on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rishit-khandelwal/vm
[INFO] finished tweaking git repo https://github.com/rishit-khandelwal/vm
[INFO] tweaked toml for git repo https://github.com/rishit-khandelwal/vm written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate git repo https://github.com/rishit-khandelwal/vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4efcc1a54741a1ba215954cc62b4e7850b5a98424c126bf228a2460b4ae4fe2
[INFO] running `Command { std: "docker" "start" "-a" "a4efcc1a54741a1ba215954cc62b4e7850b5a98424c126bf228a2460b4ae4fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4efcc1a54741a1ba215954cc62b4e7850b5a98424c126bf228a2460b4ae4fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4efcc1a54741a1ba215954cc62b4e7850b5a98424c126bf228a2460b4ae4fe2", kill_on_drop: false }`
[INFO] [stdout] a4efcc1a54741a1ba215954cc62b4e7850b5a98424c126bf228a2460b4ae4fe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e5d6a09fd5bcba644b32f0df0ae157d621d53dacc499d3af3e6a51ebf562de0
[INFO] running `Command { std: "docker" "start" "-a" "9e5d6a09fd5bcba644b32f0df0ae157d621d53dacc499d3af3e6a51ebf562de0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vyom-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fmt::Arguments`, `ops::Add`, `self`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fmt::Arguments,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     fs::{self, write},
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 5 |     ops::Add,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/main.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | / macro_rules! sub {
[INFO] [stdout] 41 | |     () => {
[INFO] [stdout] 42 | |         Instructions::SUB as u8
[INFO] [stdout] 43 | |     };
[INFO] [stdout] 44 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/main.rs:46:1
[INFO] [stdout]    |
[INFO] [stdout] 46 | / macro_rules! mul {
[INFO] [stdout] 47 | |     () => {
[INFO] [stdout] 48 | |         Instructions::MUL as u8
[INFO] [stdout] 49 | |     };
[INFO] [stdout] 50 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `POP`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     POP,
[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: `peek`
[INFO] [stdout]   --> src/main.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn peek(&mut self) -> u8 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step`
[INFO] [stdout]   --> src/main.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn step(&mut self) -> u8 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 232 |     write("binfile", code);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.74s
[INFO] running `Command { std: "docker" "inspect" "9e5d6a09fd5bcba644b32f0df0ae157d621d53dacc499d3af3e6a51ebf562de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e5d6a09fd5bcba644b32f0df0ae157d621d53dacc499d3af3e6a51ebf562de0", kill_on_drop: false }`
[INFO] [stdout] 9e5d6a09fd5bcba644b32f0df0ae157d621d53dacc499d3af3e6a51ebf562de0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36a69f3ab6ff77485ec9e49a2b6143f2be5290043497f773a27b98e1426cb33a
[INFO] running `Command { std: "docker" "start" "-a" "36a69f3ab6ff77485ec9e49a2b6143f2be5290043497f773a27b98e1426cb33a", kill_on_drop: false }`
[INFO] [stderr]    Compiling vyom-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fmt::Arguments`, `ops::Add`, `self`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     fmt::Arguments,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     fs::{self, write},
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 5 |     ops::Add,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/main.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | / macro_rules! sub {
[INFO] [stdout] 41 | |     () => {
[INFO] [stdout] 42 | |         Instructions::SUB as u8
[INFO] [stdout] 43 | |     };
[INFO] [stdout] 44 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/main.rs:46:1
[INFO] [stdout]    |
[INFO] [stdout] 46 | / macro_rules! mul {
[INFO] [stdout] 47 | |     () => {
[INFO] [stdout] 48 | |         Instructions::MUL as u8
[INFO] [stdout] 49 | |     };
[INFO] [stdout] 50 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `POP`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     POP,
[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: `peek`
[INFO] [stdout]   --> src/main.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn peek(&mut self) -> u8 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step`
[INFO] [stdout]   --> src/main.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn step(&mut self) -> u8 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 232 |     write("binfile", code);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "36a69f3ab6ff77485ec9e49a2b6143f2be5290043497f773a27b98e1426cb33a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a69f3ab6ff77485ec9e49a2b6143f2be5290043497f773a27b98e1426cb33a", kill_on_drop: false }`
[INFO] [stdout] 36a69f3ab6ff77485ec9e49a2b6143f2be5290043497f773a27b98e1426cb33a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1fd6c3dcf6d1163a7b886602b919d8eb1845eeab607771bb8d7f72524d95ff8a
[INFO] running `Command { std: "docker" "start" "-a" "1fd6c3dcf6d1163a7b886602b919d8eb1845eeab607771bb8d7f72524d95ff8a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `fmt::Arguments`, `ops::Add`, `self`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     fmt::Arguments,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 4 |     fs::{self, write},
[INFO] [stderr]   |          ^^^^
[INFO] [stderr] 5 |     ops::Add,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / macro_rules! sub {
[INFO] [stderr] 41 | |     () => {
[INFO] [stderr] 42 | |         Instructions::SUB as u8
[INFO] [stderr] 43 | |     };
[INFO] [stderr] 44 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | / macro_rules! mul {
[INFO] [stderr] 47 | |     () => {
[INFO] [stderr] 48 | |         Instructions::MUL as u8
[INFO] [stderr] 49 | |     };
[INFO] [stderr] 50 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `POP`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     POP,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `peek`
[INFO] [stderr]   --> src/main.rs:83:8
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn peek(&mut self) -> u8 {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `step`
[INFO] [stderr]   --> src/main.rs:87:8
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn step(&mut self) -> u8 {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:232:5
[INFO] [stderr]     |
[INFO] [stderr] 232 |     write("binfile", code);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `vyom-vm` (bin "vyom-vm" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vyom_vm-77f7fc58c7275192)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1fd6c3dcf6d1163a7b886602b919d8eb1845eeab607771bb8d7f72524d95ff8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd6c3dcf6d1163a7b886602b919d8eb1845eeab607771bb8d7f72524d95ff8a", kill_on_drop: false }`
[INFO] [stdout] 1fd6c3dcf6d1163a7b886602b919d8eb1845eeab607771bb8d7f72524d95ff8a