[INFO] fetching crate descent_macro 0.5.0...
[INFO] testing descent_macro-0.5.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate descent_macro 0.5.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate descent_macro 0.5.0 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 descent_macro 0.5.0
[INFO] finished tweaking crates.io crate descent_macro 0.5.0
[INFO] tweaked toml for crates.io crate descent_macro 0.5.0 written to /workspace/builds/worker-5-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu v0.6.10
[INFO] [stderr]   Downloaded snafu-derive v0.6.10
[INFO] [stderr]   Downloaded descent v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] df4d939f1b45932db38b0fe2ce9353f22eec16329ee5a9f448699420d228465b
[INFO] running `Command { std: "docker" "start" "-a" "df4d939f1b45932db38b0fe2ce9353f22eec16329ee5a9f448699420d228465b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df4d939f1b45932db38b0fe2ce9353f22eec16329ee5a9f448699420d228465b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4d939f1b45932db38b0fe2ce9353f22eec16329ee5a9f448699420d228465b", kill_on_drop: false }`
[INFO] [stdout] df4d939f1b45932db38b0fe2ce9353f22eec16329ee5a9f448699420d228465b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 593c6c294d82d1bf3f68d3f010f66781f1b07d05384325a4dd11f6b52b69bff5
[INFO] running `Command { std: "docker" "start" "-a" "593c6c294d82d1bf3f68d3f010f66781f1b07d05384325a4dd11f6b52b69bff5", kill_on_drop: false }`
[INFO] [stderr]    Compiling descent_macro v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(proc_macro_hygiene)]
[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 `descent_macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "593c6c294d82d1bf3f68d3f010f66781f1b07d05384325a4dd11f6b52b69bff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "593c6c294d82d1bf3f68d3f010f66781f1b07d05384325a4dd11f6b52b69bff5", kill_on_drop: false }`
[INFO] [stdout] 593c6c294d82d1bf3f68d3f010f66781f1b07d05384325a4dd11f6b52b69bff5
[INFO] testing descent_macro-0.5.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate descent_macro 0.5.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate descent_macro 0.5.0 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 descent_macro 0.5.0
[INFO] finished tweaking crates.io crate descent_macro 0.5.0
[INFO] tweaked toml for crates.io crate descent_macro 0.5.0 written to /workspace/builds/worker-5-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]     Blocking waiting for file lock on package cache
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 220f89cd4f3d1c9d859532b8e91fa1d4311b1a387970800ea2872cc44c9e2e40
[INFO] running `Command { std: "docker" "start" "-a" "220f89cd4f3d1c9d859532b8e91fa1d4311b1a387970800ea2872cc44c9e2e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "220f89cd4f3d1c9d859532b8e91fa1d4311b1a387970800ea2872cc44c9e2e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "220f89cd4f3d1c9d859532b8e91fa1d4311b1a387970800ea2872cc44c9e2e40", kill_on_drop: false }`
[INFO] [stdout] 220f89cd4f3d1c9d859532b8e91fa1d4311b1a387970800ea2872cc44c9e2e40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a4d193acba061d5a17df7a6f4756d9aadaa13fa35523fcdd77af41ce71cb6842
[INFO] running `Command { std: "docker" "start" "-a" "a4d193acba061d5a17df7a6f4756d9aadaa13fa35523fcdd77af41ce71cb6842", kill_on_drop: false }`
[INFO] [stderr]    Compiling descent_macro v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(proc_macro_hygiene)]
[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 `descent_macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a4d193acba061d5a17df7a6f4756d9aadaa13fa35523fcdd77af41ce71cb6842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d193acba061d5a17df7a6f4756d9aadaa13fa35523fcdd77af41ce71cb6842", kill_on_drop: false }`
[INFO] [stdout] a4d193acba061d5a17df7a6f4756d9aadaa13fa35523fcdd77af41ce71cb6842
