[INFO] cloning repository https://github.com/ShallowFeather/RISC-V
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShallowFeather/RISC-V" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShallowFeather%2FRISC-V", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShallowFeather%2FRISC-V'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d76dd1cdf76c4a0bbf58f23a528c1c29cbbe04d9
[INFO] testing ShallowFeather/RISC-V against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShallowFeather%2FRISC-V" "/workspace/builds/worker-70/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-70/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShallowFeather/RISC-V on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-70/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ShallowFeather/RISC-V
[INFO] finished tweaking git repo https://github.com/ShallowFeather/RISC-V
[INFO] tweaked toml for git repo https://github.com/ShallowFeather/RISC-V written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] crate git repo https://github.com/ShallowFeather/RISC-V already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 523a4acb794f98313233172a63b60410e1e71e5ec5a968e14bbe7d6d0486e7f3
[INFO] running `Command { std: "docker" "start" "-a" "523a4acb794f98313233172a63b60410e1e71e5ec5a968e14bbe7d6d0486e7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "523a4acb794f98313233172a63b60410e1e71e5ec5a968e14bbe7d6d0486e7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "523a4acb794f98313233172a63b60410e1e71e5ec5a968e14bbe7d6d0486e7f3", kill_on_drop: false }`
[INFO] [stdout] 523a4acb794f98313233172a63b60410e1e71e5ec5a968e14bbe7d6d0486e7f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c27849f9ff96d2efb75a4898984f48ab7b0d744f914e66df81d871769aed3788
[INFO] running `Command { std: "docker" "start" "-a" "c27849f9ff96d2efb75a4898984f48ab7b0d744f914e66df81d871769aed3788", kill_on_drop: false }`
[INFO] [stderr]    Compiling RISC-V v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(llvm_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(global_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `RISC-V` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "c27849f9ff96d2efb75a4898984f48ab7b0d744f914e66df81d871769aed3788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c27849f9ff96d2efb75a4898984f48ab7b0d744f914e66df81d871769aed3788", kill_on_drop: false }`
[INFO] [stdout] c27849f9ff96d2efb75a4898984f48ab7b0d744f914e66df81d871769aed3788