[INFO] cloning repository https://github.com/ReiMatsuzaki/y86_computer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ReiMatsuzaki/y86_computer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReiMatsuzaki%2Fy86_computer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReiMatsuzaki%2Fy86_computer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06c45bba73e786200e2058b4639b1ee5808d1c48
[INFO] checking ReiMatsuzaki/y86_computer against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReiMatsuzaki%2Fy86_computer" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ReiMatsuzaki/y86_computer on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ReiMatsuzaki/y86_computer
[INFO] finished tweaking git repo https://github.com/ReiMatsuzaki/y86_computer
[INFO] tweaked toml for git repo https://github.com/ReiMatsuzaki/y86_computer written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ReiMatsuzaki/y86_computer 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-ranges v1.0.5
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded ucd-util v0.1.10
[INFO] [stderr]   Downloaded anstyle-wincon v3.0.1
[INFO] [stderr]   Downloaded clap_lex v0.6.0
[INFO] [stderr]   Downloaded anstream v0.6.4
[INFO] [stderr]   Downloaded anstyle v1.0.4
[INFO] [stderr]   Downloaded anstyle-parse v0.2.2
[INFO] [stderr]   Downloaded clap_derive v4.4.7
[INFO] [stderr]   Downloaded clap v4.4.10
[INFO] [stderr]   Downloaded clap_builder v4.4.9
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 527b2ec284b602db8602384570053e11768fee3527636f0d7fdf78ac2d6d65bb
[INFO] running `Command { std: "docker" "start" "-a" "527b2ec284b602db8602384570053e11768fee3527636f0d7fdf78ac2d6d65bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "527b2ec284b602db8602384570053e11768fee3527636f0d7fdf78ac2d6d65bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "527b2ec284b602db8602384570053e11768fee3527636f0d7fdf78ac2d6d65bb", kill_on_drop: false }`
[INFO] [stdout] 527b2ec284b602db8602384570053e11768fee3527636f0d7fdf78ac2d6d65bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0e7a6aa390e119afbfc66ff6cf6444cb73867a4a285b7b8a503f0114f7bca73
[INFO] running `Command { std: "docker" "start" "-a" "d0e7a6aa390e119afbfc66ff6cf6444cb73867a4a285b7b8a503f0114f7bca73", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking ucd-util v0.1.10
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking anstyle-parse v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking clap_builder v4.4.9
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking clap v4.4.10
[INFO] [stderr]     Checking y86_computer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Register` is imported redundantly
[INFO] [stdout]    --> src/yas/ys_scanner.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |     use crate::yas::code::Register;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 187 |
[INFO] [stdout] 188 |     use super::*;
[INFO] [stdout]     |         -------- the item `Register` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Register` is imported redundantly
[INFO] [stdout]    --> src/ycc/coder.rs:364:28
[INFO] [stdout]     |
[INFO] [stdout] 363 |     use super::*;
[INFO] [stdout]     |         -------- the item `Register` is already imported here
[INFO] [stdout] 364 |     use crate::yas::code::{Register, Code};
[INFO] [stdout]     |                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Code` is imported redundantly
[INFO] [stdout]    --> src/ycc/coder.rs:364:38
[INFO] [stdout]     |
[INFO] [stdout] 363 |     use super::*;
[INFO] [stdout]     |         -------- the item `Code` is already imported here
[INFO] [stdout] 364 |     use crate::yas::code::{Register, Code};
[INFO] [stdout]     |                                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CmovFn` is never used
[INFO] [stdout]   --> src/yis/inst.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub enum CmovFn {}
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmovFn` 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: field `pos` is never read
[INFO] [stdout]   --> src/yas/byte_writer.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ByteWriteError {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 16 |     pub message: String,
[INFO] [stdout] 17 |     pub pos: usize,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ByteWriteError` 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 `token` is never read
[INFO] [stdout]   --> src/ycc/parser.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct ParserError {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 39 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParserError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CmovFn` is never used
[INFO] [stdout]   --> src/yis/inst.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub enum CmovFn {}
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmovFn` 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: field `pos` is never read
[INFO] [stdout]   --> src/yas/byte_writer.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ByteWriteError {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 16 |     pub message: String,
[INFO] [stdout] 17 |     pub pos: usize,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ByteWriteError` 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 `token` is never read
[INFO] [stdout]   --> src/ycc/parser.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct ParserError {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 39 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParserError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "d0e7a6aa390e119afbfc66ff6cf6444cb73867a4a285b7b8a503f0114f7bca73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0e7a6aa390e119afbfc66ff6cf6444cb73867a4a285b7b8a503f0114f7bca73", kill_on_drop: false }`
[INFO] [stdout] d0e7a6aa390e119afbfc66ff6cf6444cb73867a4a285b7b8a503f0114f7bca73