[INFO] fetching crate drought_macros 0.0.2...
[INFO] testing drought_macros-0.0.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate drought_macros 0.0.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate drought_macros 0.0.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drought_macros 0.0.2
[INFO] finished tweaking crates.io crate drought_macros 0.0.2
[INFO] tweaked toml for crates.io crate drought_macros 0.0.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a06ff8864eb0abe40f1a9e7497ca63f52b7a009f2058dd6f55cf1c7c42d7374d
[INFO] running `Command { std: "docker" "start" "-a" "a06ff8864eb0abe40f1a9e7497ca63f52b7a009f2058dd6f55cf1c7c42d7374d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a06ff8864eb0abe40f1a9e7497ca63f52b7a009f2058dd6f55cf1c7c42d7374d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a06ff8864eb0abe40f1a9e7497ca63f52b7a009f2058dd6f55cf1c7c42d7374d", kill_on_drop: false }`
[INFO] [stdout] a06ff8864eb0abe40f1a9e7497ca63f52b7a009f2058dd6f55cf1c7c42d7374d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dabd1ecea34f69c65ba31e3f2ceb2a4b4ed83aa08ae1ad87be418c3b0217bacb
[INFO] running `Command { std: "docker" "start" "-a" "dabd1ecea34f69c65ba31e3f2ceb2a4b4ed83aa08ae1ad87be418c3b0217bacb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling drought_macros v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[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 `drought_macros` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "dabd1ecea34f69c65ba31e3f2ceb2a4b4ed83aa08ae1ad87be418c3b0217bacb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabd1ecea34f69c65ba31e3f2ceb2a4b4ed83aa08ae1ad87be418c3b0217bacb", kill_on_drop: false }`
[INFO] [stdout] dabd1ecea34f69c65ba31e3f2ceb2a4b4ed83aa08ae1ad87be418c3b0217bacb
[INFO] testing drought_macros-0.0.2 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate drought_macros 0.0.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate drought_macros 0.0.2 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drought_macros 0.0.2
[INFO] finished tweaking crates.io crate drought_macros 0.0.2
[INFO] tweaked toml for crates.io crate drought_macros 0.0.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4ced6957a2f2f73c5af706b9647b2fef558139e037bda8ac7d90a1e4477e84a
[INFO] running `Command { std: "docker" "start" "-a" "d4ced6957a2f2f73c5af706b9647b2fef558139e037bda8ac7d90a1e4477e84a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4ced6957a2f2f73c5af706b9647b2fef558139e037bda8ac7d90a1e4477e84a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ced6957a2f2f73c5af706b9647b2fef558139e037bda8ac7d90a1e4477e84a", kill_on_drop: false }`
[INFO] [stdout] d4ced6957a2f2f73c5af706b9647b2fef558139e037bda8ac7d90a1e4477e84a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67b46f02a1d95f869aefac63874526440fb65f947373f680e00cc3c876a67875
[INFO] running `Command { std: "docker" "start" "-a" "67b46f02a1d95f869aefac63874526440fb65f947373f680e00cc3c876a67875", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling drought_macros v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `drought_macros` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "67b46f02a1d95f869aefac63874526440fb65f947373f680e00cc3c876a67875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b46f02a1d95f869aefac63874526440fb65f947373f680e00cc3c876a67875", kill_on_drop: false }`
[INFO] [stdout] 67b46f02a1d95f869aefac63874526440fb65f947373f680e00cc3c876a67875
