[INFO] fetching crate castle_api 0.20.2...
[INFO] testing castle_api-0.20.2 against 1.76.0 for beta-1.77-1
[INFO] extracting crate castle_api 0.20.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate castle_api 0.20.2 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate castle_api 0.20.2
[INFO] finished tweaking crates.io crate castle_api 0.20.2
[INFO] tweaked toml for crates.io crate castle_api 0.20.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded unzip-n v0.1.2
[INFO] [stderr]   Downloaded castle_input_cursor v0.20.2
[INFO] [stderr]   Downloaded castle_macro v0.20.2
[INFO] [stderr]   Downloaded async-recursion v1.0.5
[INFO] [stderr]   Downloaded rmpv v1.0.1
[INFO] [stderr]   Downloaded rmp-serde v1.1.2
[INFO] [stderr]   Downloaded castle_query_parser v0.20.2
[INFO] [stderr]   Downloaded byte v0.2.7
[INFO] [stderr]   Downloaded castle_shared_parser v0.20.2
[INFO] [stderr]   Downloaded castle_tokenizer v0.20.2
[INFO] [stderr]   Downloaded castle_schema_parser v0.20.2
[INFO] [stderr]   Downloaded castle_types v0.20.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a5d0709dcdbe94a585259209ba0712c23fa845a268f8fb5cecee4f06997c34d
[INFO] running `Command { std: "docker" "start" "-a" "8a5d0709dcdbe94a585259209ba0712c23fa845a268f8fb5cecee4f06997c34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a5d0709dcdbe94a585259209ba0712c23fa845a268f8fb5cecee4f06997c34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a5d0709dcdbe94a585259209ba0712c23fa845a268f8fb5cecee4f06997c34d", kill_on_drop: false }`
[INFO] [stdout] 8a5d0709dcdbe94a585259209ba0712c23fa845a268f8fb5cecee4f06997c34d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c3de04c482df071cace55c7a3d00cf41922fe040c209819d3ab90cc22fb200e
[INFO] running `Command { std: "docker" "start" "-a" "3c3de04c482df071cace55c7a3d00cf41922fe040c209819d3ab90cc22fb200e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling byte v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling fast-float v0.2.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rmp v0.8.12
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling rmpv v1.0.1
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling async-recursion v1.0.5
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling unzip-n v0.1.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling uuid v1.7.0
[INFO] [stderr]    Compiling castle_input_cursor v0.20.2
[INFO] [stderr]    Compiling rmp-serde v1.1.2
[INFO] [stderr]    Compiling castle_types v0.20.2
[INFO] [stderr]    Compiling castle_tokenizer v0.20.2
[INFO] [stderr]    Compiling castle_shared_parser v0.20.2
[INFO] [stderr]    Compiling castle_schema_parser v0.20.2
[INFO] [stderr]    Compiling castle_query_parser v0.20.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/castle_query_parser-0.20.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(if_let_guard)]
[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 `castle_query_parser` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3c3de04c482df071cace55c7a3d00cf41922fe040c209819d3ab90cc22fb200e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c3de04c482df071cace55c7a3d00cf41922fe040c209819d3ab90cc22fb200e", kill_on_drop: false }`
[INFO] [stdout] 3c3de04c482df071cace55c7a3d00cf41922fe040c209819d3ab90cc22fb200e
