[INFO] fetching crate zk-citadel-moat 0.1.1...
[INFO] documenting zk-citadel-moat-0.1.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate zk-citadel-moat 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate zk-citadel-moat 0.1.1 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 zk-citadel-moat 0.1.1
[INFO] finished tweaking crates.io crate zk-citadel-moat 0.1.1
[INFO] tweaked toml for crates.io crate zk-citadel-moat 0.1.1 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" "+1.75.0" "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 ...
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[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a1b746896b232c3941fdef1e6be1dbd9858a041da2a86a9daf48cfb1a7299c5
[INFO] running `Command { std: "docker" "start" "-a" "8a1b746896b232c3941fdef1e6be1dbd9858a041da2a86a9daf48cfb1a7299c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a1b746896b232c3941fdef1e6be1dbd9858a041da2a86a9daf48cfb1a7299c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a1b746896b232c3941fdef1e6be1dbd9858a041da2a86a9daf48cfb1a7299c5", kill_on_drop: false }`
[INFO] [stdout] 8a1b746896b232c3941fdef1e6be1dbd9858a041da2a86a9daf48cfb1a7299c5
[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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 615f1f6371aa6c10a58e5b9b1021ecb3de2295c3efd7800b9ced1bfab9e8b0f9
[INFO] running `Command { std: "docker" "start" "-a" "615f1f6371aa6c10a58e5b9b1021ecb3de2295c3efd7800b9ced1bfab9e8b0f9", kill_on_drop: false }`
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[INFO] [stderr]    Compiling darling_core v0.20.3
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[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling msgpacker-derive v0.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
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[INFO] [stderr]    Compiling openssl-macros v0.1.1
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[INFO] [stderr]     Checking msgpacker v0.4.3
[INFO] [stderr]    Compiling darling_macro v0.20.3
[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/msgpacker-0.4.3/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     iter_array_chunks,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/msgpacker-0.4.3/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     maybe_uninit_array_assume_init,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/msgpacker-0.4.3/src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     maybe_uninit_uninit_array
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stdout] error: aborting due to 3 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 `msgpacker` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "615f1f6371aa6c10a58e5b9b1021ecb3de2295c3efd7800b9ced1bfab9e8b0f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "615f1f6371aa6c10a58e5b9b1021ecb3de2295c3efd7800b9ced1bfab9e8b0f9", kill_on_drop: false }`
[INFO] [stdout] 615f1f6371aa6c10a58e5b9b1021ecb3de2295c3efd7800b9ced1bfab9e8b0f9
