[INFO] cloning repository https://github.com/KevinCybura/assembly_emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KevinCybura/assembly_emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKevinCybura%2Fassembly_emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKevinCybura%2Fassembly_emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3808c5f50d1819778fecbe834834c09f0b4e028
[INFO] testing KevinCybura/assembly_emulator against master#6c20ab744b0f82646d90ce9d25894823abc9c669 for pr-99093
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKevinCybura%2Fassembly_emulator" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KevinCybura/assembly_emulator on toolchain 6c20ab744b0f82646d90ce9d25894823abc9c669
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KevinCybura/assembly_emulator
[INFO] finished tweaking git repo https://github.com/KevinCybura/assembly_emulator
[INFO] tweaked toml for git repo https://github.com/KevinCybura/assembly_emulator written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/KevinCybura/assembly_emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d7c7df7cb6667a1dc5ca06a6a74cc80ac0cb2d8bdb4cfd3ff33abe740834d90
[INFO] running `Command { std: "docker" "start" "-a" "8d7c7df7cb6667a1dc5ca06a6a74cc80ac0cb2d8bdb4cfd3ff33abe740834d90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d7c7df7cb6667a1dc5ca06a6a74cc80ac0cb2d8bdb4cfd3ff33abe740834d90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d7c7df7cb6667a1dc5ca06a6a74cc80ac0cb2d8bdb4cfd3ff33abe740834d90", kill_on_drop: false }`
[INFO] [stdout] 8d7c7df7cb6667a1dc5ca06a6a74cc80ac0cb2d8bdb4cfd3ff33abe740834d90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3de4bdcbe97849e7bf38b563ada7055d79e395e06da268f22d829b8d7d22cd22
[INFO] running `Command { std: "docker" "start" "-a" "3de4bdcbe97849e7bf38b563ada7055d79e395e06da268f22d829b8d7d22cd22", kill_on_drop: false }`
[INFO] [stderr]    Compiling assembly_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::Token::Op`
[INFO] [stdout]  --> src/lexer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::Token::Op;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> src/parser.rs:60:47
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn handle_expression(&self, token: Token, operator: Operator) -> Production {
[INFO] [stdout]    |                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Label`, `Expr` and `EOF` are never constructed
[INFO] [stdout]   --> src/parser.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum Production {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 24 |     Label { token: Token, position: u64 },
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 25 |     Expr(Expression),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     EOF,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `Production` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Parser<'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/parser.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn new() -> Expression {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/parser.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn new(code: &'a str) -> Parser<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `parse` is never used
[INFO] [stdout]   --> src/parser.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn parse(&self) -> Vec<Production> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `handle_expression` is never used
[INFO] [stdout]   --> src/parser.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn handle_expression(&self, token: Token, operator: Operator) -> Production {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     f.read_to_string(&mut file);
[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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "3de4bdcbe97849e7bf38b563ada7055d79e395e06da268f22d829b8d7d22cd22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de4bdcbe97849e7bf38b563ada7055d79e395e06da268f22d829b8d7d22cd22", kill_on_drop: false }`
[INFO] [stdout] 3de4bdcbe97849e7bf38b563ada7055d79e395e06da268f22d829b8d7d22cd22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f900fa60800f02545e54e100fdcaa61157d32e1b36f13afa2d7eae6c978e10a
[INFO] running `Command { std: "docker" "start" "-a" "8f900fa60800f02545e54e100fdcaa61157d32e1b36f13afa2d7eae6c978e10a", kill_on_drop: false }`
[INFO] [stderr]    Compiling assembly_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::Token::Op`
[INFO] [stdout]  --> src/lexer.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::Token::Op;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> src/parser.rs:60:47
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn handle_expression(&self, token: Token, operator: Operator) -> Production {
[INFO] [stdout]    |                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EOF` is never constructed
[INFO] [stdout]   --> src/parser.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum Production {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 26 |     EOF,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `Production` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tokens` is never read
[INFO] [stdout]   --> src/parser.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Parser<'a> {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 30 |     tokens: Vec<Production>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     f.read_to_string(&mut file);
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "8f900fa60800f02545e54e100fdcaa61157d32e1b36f13afa2d7eae6c978e10a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f900fa60800f02545e54e100fdcaa61157d32e1b36f13afa2d7eae6c978e10a", kill_on_drop: false }`
[INFO] [stdout] 8f900fa60800f02545e54e100fdcaa61157d32e1b36f13afa2d7eae6c978e10a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "test" "--frozen", kill_on_drop: false }`
[ERROR] error running command: no output for 300 seconds