[INFO] cloning repository https://github.com/Nufflee/x86-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nufflee/x86-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNufflee%2Fx86-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNufflee%2Fx86-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b25365e0fe673174a894dfe69f72a48ffc1fa93f
[INFO] testing Nufflee/x86-emulator against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNufflee%2Fx86-emulator" "/workspace/builds/worker-73/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-73/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nufflee/x86-emulator on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nufflee/x86-emulator
[INFO] finished tweaking git repo https://github.com/Nufflee/x86-emulator
[INFO] tweaked toml for git repo https://github.com/Nufflee/x86-emulator written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] crate git repo https://github.com/Nufflee/x86-emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e7fa69ef4641a689044f9f1ab6efffcef90e882adaaff63d30837d7b6b7d666
[INFO] running `Command { std: "docker" "start" "-a" "8e7fa69ef4641a689044f9f1ab6efffcef90e882adaaff63d30837d7b6b7d666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e7fa69ef4641a689044f9f1ab6efffcef90e882adaaff63d30837d7b6b7d666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e7fa69ef4641a689044f9f1ab6efffcef90e882adaaff63d30837d7b6b7d666", kill_on_drop: false }`
[INFO] [stdout] 8e7fa69ef4641a689044f9f1ab6efffcef90e882adaaff63d30837d7b6b7d666
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1722c0aceea3ef36d19bdeb183f05dfcb2884b4af10891e145d64c794a6ff7ca
[INFO] running `Command { std: "docker" "start" "-a" "1722c0aceea3ef36d19bdeb183f05dfcb2884b4af10891e145d64c794a6ff7ca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling num_enum v0.5.1
[INFO] [stderr]    Compiling wasm-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `DerefRegister32` found for enum `InstructionSource` in the current scope
[INFO] [stdout]    --> src/cpu.rs:196:32
[INFO] [stdout]     |
[INFO] [stdout] 196 |             InstructionSource::DerefRegister32(register) => {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                variant or associated item not found in `InstructionSource`
[INFO] [stdout]     |                                help: there is a variant with a similar name: `Register32`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/instruction.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout] 61  | pub enum InstructionSource {
[INFO] [stdout]     | -------------------------- variant or associated item `DerefRegister32` not found here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `DerefRegister32` found for enum `InstructionSource` in the current scope
[INFO] [stdout]    --> src/main.rs:172:40
[INFO] [stdout]     |
[INFO] [stdout] 172 |                     InstructionSource::DerefRegister32(Register32::try_from(rm_field).unwrap()),
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        variant or associated item not found in `InstructionSource`
[INFO] [stdout]     |                                        help: there is a variant with a similar name: `Register32`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/instruction.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout] 61  | pub enum InstructionSource {
[INFO] [stdout]     | -------------------------- variant or associated item `DerefRegister32` not found here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-emulator` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "1722c0aceea3ef36d19bdeb183f05dfcb2884b4af10891e145d64c794a6ff7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1722c0aceea3ef36d19bdeb183f05dfcb2884b4af10891e145d64c794a6ff7ca", kill_on_drop: false }`
[INFO] [stdout] 1722c0aceea3ef36d19bdeb183f05dfcb2884b4af10891e145d64c794a6ff7ca