[INFO] fetching crate function_from_equation 0.1.0...
[INFO] testing function_from_equation-0.1.0 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate function_from_equation 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate function_from_equation 0.1.0 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate function_from_equation 0.1.0
[INFO] finished tweaking crates.io crate function_from_equation 0.1.0
[INFO] tweaked toml for crates.io crate function_from_equation 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35b171a87c79b406b97d4799f1fa82e1362f1ed374813924c5b5e7491ef7c9cb
[INFO] running `Command { std: "docker" "start" "-a" "35b171a87c79b406b97d4799f1fa82e1362f1ed374813924c5b5e7491ef7c9cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35b171a87c79b406b97d4799f1fa82e1362f1ed374813924c5b5e7491ef7c9cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35b171a87c79b406b97d4799f1fa82e1362f1ed374813924c5b5e7491ef7c9cb", kill_on_drop: false }`
[INFO] [stdout] 35b171a87c79b406b97d4799f1fa82e1362f1ed374813924c5b5e7491ef7c9cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 949667a2fc731038fd02feb7a5c94f1b5d2a3479466f0d538d0a44fb5d042d2f
[INFO] running `Command { std: "docker" "start" "-a" "949667a2fc731038fd02feb7a5c94f1b5d2a3479466f0d538d0a44fb5d042d2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling function_from_equation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(proc_macro_quote)]
[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 `function_from_equation` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "949667a2fc731038fd02feb7a5c94f1b5d2a3479466f0d538d0a44fb5d042d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "949667a2fc731038fd02feb7a5c94f1b5d2a3479466f0d538d0a44fb5d042d2f", kill_on_drop: false }`
[INFO] [stdout] 949667a2fc731038fd02feb7a5c94f1b5d2a3479466f0d538d0a44fb5d042d2f
