[INFO] cloning repository https://github.com/iamr2003/lc2k_compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamr2003/lc2k_compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamr2003%2Flc2k_compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamr2003%2Flc2k_compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b512cff6c70dca47a7874799e1c981affd572e90
[INFO] checking iamr2003/lc2k_compiler against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamr2003%2Flc2k_compiler" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamr2003/lc2k_compiler on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iamr2003/lc2k_compiler
[INFO] finished tweaking git repo https://github.com/iamr2003/lc2k_compiler
[INFO] tweaked toml for git repo https://github.com/iamr2003/lc2k_compiler written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iamr2003/lc2k_compiler 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" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lalrpop-util v0.22.0
[INFO] [stderr]   Downloaded ascii-canvas v4.0.0
[INFO] [stderr]   Downloaded term v1.0.1
[INFO] [stderr]   Downloaded lalrpop v0.22.0
[INFO] [stderr]   Downloaded petgraph v0.6.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3af1f565eb3c6a4f65674244c650018c4a12ede285e712718aa3f55c659f41b5
[INFO] running `Command { std: "docker" "start" "-a" "3af1f565eb3c6a4f65674244c650018c4a12ede285e712718aa3f55c659f41b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3af1f565eb3c6a4f65674244c650018c4a12ede285e712718aa3f55c659f41b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3af1f565eb3c6a4f65674244c650018c4a12ede285e712718aa3f55c659f41b5", kill_on_drop: false }`
[INFO] [stdout] 3af1f565eb3c6a4f65674244c650018c4a12ede285e712718aa3f55c659f41b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70ca9f920f0c0458a255b25df97fe944d9f41c30333954166d842c261aad4283
[INFO] running `Command { std: "docker" "start" "-a" "70ca9f920f0c0458a255b25df97fe944d9f41c30333954166d842c261aad4283", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.19
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking lalrpop-util v0.22.0
[INFO] [stderr]     Checking lc2k_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `JArgs`
[INFO] [stdout]  --> src/cimple_compiler.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lc2k::{AsmLine, Instr, JArgs, LArgs, Offset, RArgs, Reg};
[INFO] [stdout]   |                                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsmLine`, `Instr`, `JArgs`, `LArgs`, `Offset`, `RArgs`, and `Reg`
[INFO] [stdout]  --> src/main.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use lc2k::{AsmLine, Instr, JArgs, LArgs, Offset, RArgs, Reg};
[INFO] [stdout]   |            ^^^^^^^  ^^^^^  ^^^^^  ^^^^^  ^^^^^^  ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JArgs`
[INFO] [stdout]  --> src/cimple_compiler.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::lc2k::{AsmLine, Instr, JArgs, LArgs, Offset, RArgs, Reg};
[INFO] [stdout]   |                                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsmLine`, `Instr`, `JArgs`, `LArgs`, `Offset`, `RArgs`, and `Reg`
[INFO] [stdout]  --> src/main.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use lc2k::{AsmLine, Instr, JArgs, LArgs, Offset, RArgs, Reg};
[INFO] [stdout]   |            ^^^^^^^  ^^^^^  ^^^^^  ^^^^^  ^^^^^^  ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Div` is never constructed
[INFO] [stdout]   --> src/ast.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Opcode {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] 11 |     Mul, // to be implemented, requires a particular decomposition
[INFO] [stdout] 12 |     Div, // to be implemented, requires a particular decomposition
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opcode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Div` is never constructed
[INFO] [stdout]   --> src/ast.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Opcode {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] 11 |     Mul, // to be implemented, requires a particular decomposition
[INFO] [stdout] 12 |     Div, // to be implemented, requires a particular decomposition
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opcode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `R2`, `R3`, `R4`, and `R5` are never constructed
[INFO] [stdout]   --> src/lc2k.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub enum Reg {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9  |     R2,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 10 |     R3,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     R4,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 12 |     R5,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Reg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nor`, `Beq`, `Jalr`, and `Noop` are never constructed
[INFO] [stdout]   --> src/lc2k.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub enum Instr {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 61 |     Add(RArgs),
[INFO] [stdout] 62 |     Nor(RArgs),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     Beq(LArgs),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 66 |     Jalr(JArgs),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 67 |     Fill(Offset),
[INFO] [stdout] 68 |     Noop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `R2`, `R3`, `R4`, and `R5` are never constructed
[INFO] [stdout]   --> src/lc2k.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub enum Reg {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9  |     R2,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 10 |     R3,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     R4,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 12 |     R5,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Reg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nor`, `Beq`, `Jalr`, and `Noop` are never constructed
[INFO] [stdout]   --> src/lc2k.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub enum Instr {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 61 |     Add(RArgs),
[INFO] [stdout] 62 |     Nor(RArgs),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     Beq(LArgs),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 66 |     Jalr(JArgs),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 67 |     Fill(Offset),
[INFO] [stdout] 68 |     Noop,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "70ca9f920f0c0458a255b25df97fe944d9f41c30333954166d842c261aad4283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ca9f920f0c0458a255b25df97fe944d9f41c30333954166d842c261aad4283", kill_on_drop: false }`
[INFO] [stdout] 70ca9f920f0c0458a255b25df97fe944d9f41c30333954166d842c261aad4283