[INFO] cloning repository https://github.com/xiongmao86/mmix-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiongmao86/mmix-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiongmao86%2Fmmix-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiongmao86%2Fmmix-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91df132fad6ba08a7288317a3a8c06bbcadcd781
[INFO] testing xiongmao86/mmix-rust against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiongmao86%2Fmmix-rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiongmao86/mmix-rust on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiongmao86/mmix-rust
[INFO] finished tweaking git repo https://github.com/xiongmao86/mmix-rust
[INFO] tweaked toml for git repo https://github.com/xiongmao86/mmix-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/xiongmao86/mmix-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] beb858fa70e60bd7168c24ac3980786d2f2f7ecd1333bbb6c0180eb0accc5609
[INFO] running `Command { std: "docker" "start" "-a" "beb858fa70e60bd7168c24ac3980786d2f2f7ecd1333bbb6c0180eb0accc5609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beb858fa70e60bd7168c24ac3980786d2f2f7ecd1333bbb6c0180eb0accc5609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beb858fa70e60bd7168c24ac3980786d2f2f7ecd1333bbb6c0180eb0accc5609", kill_on_drop: false }`
[INFO] [stdout] beb858fa70e60bd7168c24ac3980786d2f2f7ecd1333bbb6c0180eb0accc5609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 149c1189065186721062c147b389d72c2b1f4a7a4bcaf0804a1f7d33557a8d58
[INFO] running `Command { std: "docker" "start" "-a" "149c1189065186721062c147b389d72c2b1f4a7a4bcaf0804a1f7d33557a8d58", kill_on_drop: false }`
[INFO] [stderr]    Compiling mmix 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_bounds)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMemory`
[INFO] [stdout]  --> src/machine/mod.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use memory::{ Memory, HashMemory };
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmix` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "149c1189065186721062c147b389d72c2b1f4a7a4bcaf0804a1f7d33557a8d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149c1189065186721062c147b389d72c2b1f4a7a4bcaf0804a1f7d33557a8d58", kill_on_drop: false }`
[INFO] [stdout] 149c1189065186721062c147b389d72c2b1f4a7a4bcaf0804a1f7d33557a8d58