[INFO] cloning repository https://github.com/s-ylide/cpuex2022-7-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/s-ylide/cpuex2022-7-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs-ylide%2Fcpuex2022-7-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs-ylide%2Fcpuex2022-7-simulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e729a10af2830c0d489384577b90d20c92f56f0e
[INFO] testing s-ylide/cpuex2022-7-simulator against beta-2025-10-28 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs-ylide%2Fcpuex2022-7-simulator" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/s-ylide/cpuex2022-7-simulator
[INFO] finished tweaking git repo https://github.com/s-ylide/cpuex2022-7-simulator
[INFO] tweaked toml for git repo https://github.com/s-ylide/cpuex2022-7-simulator written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/s-ylide/cpuex2022-7-simulator on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/s-ylide/cpuex2022-7-simulator 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb25d7bd6c255a423ae7a3674abd7e6336aa12ce525cc49e93d148bf115961cf
[INFO] running `Command { std: "docker" "start" "-a" "fb25d7bd6c255a423ae7a3674abd7e6336aa12ce525cc49e93d148bf115961cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb25d7bd6c255a423ae7a3674abd7e6336aa12ce525cc49e93d148bf115961cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb25d7bd6c255a423ae7a3674abd7e6336aa12ce525cc49e93d148bf115961cf", kill_on_drop: false }`
[INFO] [stdout] fb25d7bd6c255a423ae7a3674abd7e6336aa12ce525cc49e93d148bf115961cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af6b6c7d100d32dcba2a72653e3a4063d4c083d13caf8ed0a5981d823e98b378
[INFO] running `Command { std: "docker" "start" "-a" "af6b6c7d100d32dcba2a72653e3a4063d4c083d13caf8ed0a5981d823e98b378", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling prettyplease v0.2.12
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[INFO] [stderr]    Compiling rustix v0.36.6
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling toml_datetime v0.5.1
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling nom8 v0.2.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling anstyle v1.0.2
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]    Compiling anstream v0.5.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling peg-runtime v0.8.1
[INFO] [stderr]    Compiling clap_lex v0.5.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling clap_builder v4.4.1
[INFO] [stderr]    Compiling regex v1.7.0
[INFO] [stderr]    Compiling peg-macros v0.8.1
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling is-terminal v0.4.2
[INFO] [stderr]    Compiling terminal_size v0.2.3
[INFO] [stderr]    Compiling toml_edit v0.18.0
[INFO] [stderr]    Compiling env_logger v0.10.0
[INFO] [stderr]    Compiling peg v0.8.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling bitmask-enum v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling clap_derive v4.4.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.0
[INFO] [stderr]    Compiling num_enum v0.7.0
[INFO] [stderr]    Compiling clap v4.4.1
[INFO] [stderr]    Compiling core_sim v0.1.0 (/opt/rustwide/workdir/core_sim)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> core_sim/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(variant_count)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> core_sim/src/instr.rs:119:38
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 8 => write!(f, "{}", GInstr::unchecked_transmute_from(lower)),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      unreachable expression
[INFO] [stdout]     |                                      any code following this expression is unreachable
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `GInstr`, which is uninhabited
[INFO] [stdout]    --> core_sim/src/instr.rs:119:38
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 8 => write!(f, "{}", GInstr::unchecked_transmute_from(lower)),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `$crate::format_args` which comes from the expansion of the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> core_sim/src/instr.rs:110:38
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 4 => write!(f, "{}", PInstr::unchecked_transmute_from(lower)),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      unreachable expression
[INFO] [stdout]     |                                      any code following this expression is unreachable
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `PInstr`, which is uninhabited
[INFO] [stdout]    --> core_sim/src/instr.rs:110:38
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 4 => write!(f, "{}", PInstr::unchecked_transmute_from(lower)),
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: this warning originates in the macro `$crate::format_args` which comes from the expansion of the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `core_sim` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "af6b6c7d100d32dcba2a72653e3a4063d4c083d13caf8ed0a5981d823e98b378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af6b6c7d100d32dcba2a72653e3a4063d4c083d13caf8ed0a5981d823e98b378", kill_on_drop: false }`
[INFO] [stdout] af6b6c7d100d32dcba2a72653e3a4063d4c083d13caf8ed0a5981d823e98b378
