[INFO] cloning repository https://github.com/statiolake/five_four
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/statiolake/five_four" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstatiolake%2Ffive_four", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstatiolake%2Ffive_four'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac5d0dba8ecbfcd771ca4ed75963d12d126ee11c
[INFO] testing statiolake/five_four 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%2Fstatiolake%2Ffive_four" "/workspace/builds/worker-61/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/statiolake/five_four 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] removed /workspace/builds/worker-61/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/statiolake/five_four
[INFO] finished tweaking git repo https://github.com/statiolake/five_four
[INFO] tweaked toml for git repo https://github.com/statiolake/five_four written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate git repo https://github.com/statiolake/five_four 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-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 033de466092ed9bf03b96dc56bb274f0729169abcab4f9684fbc8318106caba4
[INFO] running `Command { std: "docker" "start" "-a" "033de466092ed9bf03b96dc56bb274f0729169abcab4f9684fbc8318106caba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "033de466092ed9bf03b96dc56bb274f0729169abcab4f9684fbc8318106caba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "033de466092ed9bf03b96dc56bb274f0729169abcab4f9684fbc8318106caba4", kill_on_drop: false }`
[INFO] [stdout] 033de466092ed9bf03b96dc56bb274f0729169abcab4f9684fbc8318106caba4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 2f9981b900eed0ddf83e4c2af0a5ed3fe78324570d3ea26bc70259daac8362b8
[INFO] running `Command { std: "docker" "start" "-a" "2f9981b900eed0ddf83e4c2af0a5ed3fe78324570d3ea26bc70259daac8362b8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling five_four 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(test)]
[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 `five_four` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2f9981b900eed0ddf83e4c2af0a5ed3fe78324570d3ea26bc70259daac8362b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9981b900eed0ddf83e4c2af0a5ed3fe78324570d3ea26bc70259daac8362b8", kill_on_drop: false }`
[INFO] [stdout] 2f9981b900eed0ddf83e4c2af0a5ed3fe78324570d3ea26bc70259daac8362b8