[INFO] fetching crate hypermangle-core 0.6.3...
[INFO] testing hypermangle-core-0.6.3 against 1.75.0 for beta-1.76-1
[INFO] extracting crate hypermangle-core 0.6.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate hypermangle-core 0.6.3 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 hypermangle-core 0.6.3
[INFO] finished tweaking crates.io crate hypermangle-core 0.6.3
[INFO] tweaked toml for crates.io crate hypermangle-core 0.6.3 written to /workspace/builds/worker-2-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 intmap v0.7.1
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.19.2
[INFO] [stderr]   Downloaded console-subscriber v0.1.10
[INFO] [stderr]   Downloaded hypermangle-py v0.2.0
[INFO] [stderr]   Downloaded to_method v1.1.0
[INFO] [stderr]   Downloaded pyo3-build-config v0.19.2
[INFO] [stderr]   Downloaded pyo3-asyncio-macros v0.19.0
[INFO] [stderr]   Downloaded pyo3-macros v0.19.2
[INFO] [stderr]   Downloaded console-api v0.5.0
[INFO] [stderr]   Downloaded spinning v0.1.0
[INFO] [stderr]   Downloaded pyo3-ffi v0.19.2
[INFO] [stderr]   Downloaded pyo3 v0.19.2
[INFO] [stderr]   Downloaded clap_builder v4.3.24
[INFO] [stderr]   Downloaded interprocess v1.2.1
[INFO] [stderr]   Downloaded clap v4.3.24
[INFO] [stderr]   Downloaded pyo3-asyncio v0.19.0
[INFO] [stderr]   Downloaded lers v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 27b0351ed79dc1aa64226c120953adadbfbcf05db207722d90a6ce4f22f11bfb
[INFO] running `Command { std: "docker" "start" "-a" "27b0351ed79dc1aa64226c120953adadbfbcf05db207722d90a6ce4f22f11bfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27b0351ed79dc1aa64226c120953adadbfbcf05db207722d90a6ce4f22f11bfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b0351ed79dc1aa64226c120953adadbfbcf05db207722d90a6ce4f22f11bfb", kill_on_drop: false }`
[INFO] [stdout] 27b0351ed79dc1aa64226c120953adadbfbcf05db207722d90a6ce4f22f11bfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a502b0111300bd5e7da22b1e29f74409b69e6c133727315958cbefdfaf373836
[INFO] running `Command { std: "docker" "start" "-a" "a502b0111300bd5e7da22b1e29f74409b69e6c133727315958cbefdfaf373836", kill_on_drop: false }`
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[INFO] [stderr]    Compiling pyo3-macros v0.19.2
[INFO] [stderr]    Compiling anstream v0.3.2
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[INFO] [stderr]    Compiling prost-types v0.11.9
[INFO] [stderr]    Compiling async-lock v3.2.0
[INFO] [stderr]    Compiling async-channel v2.1.1
[INFO] [stderr]    Compiling hyper-timeout v0.4.1
[INFO] [stderr]    Compiling pyo3-asyncio-macros v0.19.0
[INFO] [stderr]    Compiling serde_spanned v0.6.5
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling futures-lite v2.1.0
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling clap_lex v0.5.1
[INFO] [stderr]    Compiling winnow v0.5.32
[INFO] [stderr]    Compiling async-task v4.7.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling rustls-native-certs v0.6.3
[INFO] [stderr]    Compiling clap_builder v4.3.24
[INFO] [stderr]    Compiling blocking v1.5.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling async-compression v0.4.5
[INFO] [stderr]    Compiling pyo3-asyncio v0.19.0
[INFO] [stderr]    Compiling tokio-rustls v0.24.1
[INFO] [stderr]    Compiling hdrhistogram v7.5.4
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling spinning v0.1.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.10
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling intmap v0.7.1
[INFO] [stderr]    Compiling to_method v1.1.0
[INFO] [stderr]    Compiling http-range-header v0.3.1
[INFO] [stderr]    Compiling tower-http v0.4.4
[INFO] [stderr]    Compiling tonic v0.9.2
[INFO] [stderr]    Compiling hypermangle-py v0.2.0
[INFO] [stderr]    Compiling toml v0.7.8
[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/hypermangle-py-0.2.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(exclusive_wrapper)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hyper-rustls v0.24.2
[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 `hypermangle-py` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a502b0111300bd5e7da22b1e29f74409b69e6c133727315958cbefdfaf373836", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a502b0111300bd5e7da22b1e29f74409b69e6c133727315958cbefdfaf373836", kill_on_drop: false }`
[INFO] [stdout] a502b0111300bd5e7da22b1e29f74409b69e6c133727315958cbefdfaf373836
