[INFO] cloning repository https://github.com/niklasad1/no-std-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/niklasad1/no-std-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklasad1%2Fno-std-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklasad1%2Fno-std-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5285edd6f9019c22306847d66341e9c686134c87
[INFO] testing niklasad1/no-std-rs 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%2Fniklasad1%2Fno-std-rs" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/niklasad1/no-std-rs 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-13/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/niklasad1/no-std-rs
[INFO] finished tweaking git repo https://github.com/niklasad1/no-std-rs
[INFO] tweaked toml for git repo https://github.com/niklasad1/no-std-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/niklasad1/no-std-rs 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 7be22f1529b118dc62e6bfb22c4f547a8bc7e838e60491ddd98ec4a0426889aa
[INFO] running `Command { std: "docker" "start" "-a" "7be22f1529b118dc62e6bfb22c4f547a8bc7e838e60491ddd98ec4a0426889aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7be22f1529b118dc62e6bfb22c4f547a8bc7e838e60491ddd98ec4a0426889aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be22f1529b118dc62e6bfb22c4f547a8bc7e838e60491ddd98ec4a0426889aa", kill_on_drop: false }`
[INFO] [stdout] 7be22f1529b118dc62e6bfb22c4f547a8bc7e838e60491ddd98ec4a0426889aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 9aa40173c86d7aee528d8326e6ab465e053670c6c5dab4caa58d6ee3a2bdc452
[INFO] running `Command { std: "docker" "start" "-a" "9aa40173c86d7aee528d8326e6ab465e053670c6c5dab4caa58d6ee3a2bdc452", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling no_std 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(lang_items, start)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `no_std` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9aa40173c86d7aee528d8326e6ab465e053670c6c5dab4caa58d6ee3a2bdc452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aa40173c86d7aee528d8326e6ab465e053670c6c5dab4caa58d6ee3a2bdc452", kill_on_drop: false }`
[INFO] [stdout] 9aa40173c86d7aee528d8326e6ab465e053670c6c5dab4caa58d6ee3a2bdc452