[INFO] cloning repository https://github.com/riscv-rust/picosoc-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/riscv-rust/picosoc-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Friscv-rust%2Fpicosoc-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Friscv-rust%2Fpicosoc-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78b18d809f8349f12af83482e2eb35624ed1c652
[INFO] testing riscv-rust/picosoc-example against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Friscv-rust%2Fpicosoc-example" "/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/riscv-rust/picosoc-example on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config
[INFO] started tweaking git repo https://github.com/riscv-rust/picosoc-example
[INFO] finished tweaking git repo https://github.com/riscv-rust/picosoc-example
[INFO] tweaked toml for git repo https://github.com/riscv-rust/picosoc-example written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/riscv-rust/picosoc-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31b993fe348511db77d9910a50ee5fe6466b895ace9e26981e9f0d5fb74929a1
[INFO] running `Command { std: "docker" "start" "-a" "31b993fe348511db77d9910a50ee5fe6466b895ace9e26981e9f0d5fb74929a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31b993fe348511db77d9910a50ee5fe6466b895ace9e26981e9f0d5fb74929a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31b993fe348511db77d9910a50ee5fe6466b895ace9e26981e9f0d5fb74929a1", kill_on_drop: false }`
[INFO] [stdout] 31b993fe348511db77d9910a50ee5fe6466b895ace9e26981e9f0d5fb74929a1
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b7f38cf2df347d92c7ab581356f673be2b5831c93f7fd17ac81d78742adcf84
[INFO] running `Command { std: "docker" "start" "-a" "6b7f38cf2df347d92c7ab581356f673be2b5831c93f7fd17ac81d78742adcf84", kill_on_drop: false }`
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling panic-abort v0.3.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.3.1/src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(core_intrinsics)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.3.1/src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![feature(panic_handler)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `panic_handler` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-abort-0.3.1/src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(core_intrinsics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[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 `panic-abort` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6b7f38cf2df347d92c7ab581356f673be2b5831c93f7fd17ac81d78742adcf84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b7f38cf2df347d92c7ab581356f673be2b5831c93f7fd17ac81d78742adcf84", kill_on_drop: false }`
[INFO] [stdout] 6b7f38cf2df347d92c7ab581356f673be2b5831c93f7fd17ac81d78742adcf84