[INFO] fetching crate piecrust-uplink 0.8.0...
[INFO] testing piecrust-uplink-0.8.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate piecrust-uplink 0.8.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate piecrust-uplink 0.8.0 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 piecrust-uplink 0.8.0
[INFO] finished tweaking crates.io crate piecrust-uplink 0.8.0
[INFO] tweaked toml for crates.io crate piecrust-uplink 0.8.0 written to /workspace/builds/worker-4-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 dlmalloc v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 522453181a520ee43891f0ebb4feea4ced572ebec1d3cd6a94359b12d15d395b
[INFO] running `Command { std: "docker" "start" "-a" "522453181a520ee43891f0ebb4feea4ced572ebec1d3cd6a94359b12d15d395b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "522453181a520ee43891f0ebb4feea4ced572ebec1d3cd6a94359b12d15d395b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "522453181a520ee43891f0ebb4feea4ced572ebec1d3cd6a94359b12d15d395b", kill_on_drop: false }`
[INFO] [stdout] 522453181a520ee43891f0ebb4feea4ced572ebec1d3cd6a94359b12d15d395b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fc8a89692dc1b4cf15267ceaf5b0aab4a5f5188e9297d93ef8ba4452f4f1cfcd
[INFO] running `Command { std: "docker" "start" "-a" "fc8a89692dc1b4cf15267ceaf5b0aab4a5f5188e9297d93ef8ba4452f4f1cfcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling ahash v0.7.7
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling bytecheck v0.6.11
[INFO] [stderr]    Compiling rkyv v0.7.43
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling rkyv_derive v0.7.43
[INFO] [stderr]    Compiling bytecheck_derive v0.6.11
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling piecrust-uplink v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(lang_items, panic_info_message)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(lang_items, panic_info_message)]
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `piecrust-uplink` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fc8a89692dc1b4cf15267ceaf5b0aab4a5f5188e9297d93ef8ba4452f4f1cfcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8a89692dc1b4cf15267ceaf5b0aab4a5f5188e9297d93ef8ba4452f4f1cfcd", kill_on_drop: false }`
[INFO] [stdout] fc8a89692dc1b4cf15267ceaf5b0aab4a5f5188e9297d93ef8ba4452f4f1cfcd
[INFO] testing piecrust-uplink-0.8.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate piecrust-uplink 0.8.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate piecrust-uplink 0.8.0 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 piecrust-uplink 0.8.0
[INFO] finished tweaking crates.io crate piecrust-uplink 0.8.0
[INFO] tweaked toml for crates.io crate piecrust-uplink 0.8.0 written to /workspace/builds/worker-4-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7c716306f2ec77df58707487d2a11f3797db8f08df9fb15a7f3dad6675989c3b
[INFO] running `Command { std: "docker" "start" "-a" "7c716306f2ec77df58707487d2a11f3797db8f08df9fb15a7f3dad6675989c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c716306f2ec77df58707487d2a11f3797db8f08df9fb15a7f3dad6675989c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c716306f2ec77df58707487d2a11f3797db8f08df9fb15a7f3dad6675989c3b", kill_on_drop: false }`
[INFO] [stdout] 7c716306f2ec77df58707487d2a11f3797db8f08df9fb15a7f3dad6675989c3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d40d97083484b872b07a9314fc734b5013f6ab79eb0f0a865b6daf98f7aba49f
[INFO] running `Command { std: "docker" "start" "-a" "d40d97083484b872b07a9314fc734b5013f6ab79eb0f0a865b6daf98f7aba49f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling rkyv v0.7.43
[INFO] [stderr]    Compiling bytecheck v0.6.11
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling ahash v0.7.7
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.11
[INFO] [stderr]    Compiling rkyv_derive v0.7.43
[INFO] [stderr]    Compiling ptr_meta v0.1.4
[INFO] [stderr]    Compiling piecrust-uplink v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(lang_items, panic_info_message)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(lang_items, panic_info_message)]
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `piecrust-uplink` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d40d97083484b872b07a9314fc734b5013f6ab79eb0f0a865b6daf98f7aba49f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d40d97083484b872b07a9314fc734b5013f6ab79eb0f0a865b6daf98f7aba49f", kill_on_drop: false }`
[INFO] [stdout] d40d97083484b872b07a9314fc734b5013f6ab79eb0f0a865b6daf98f7aba49f
