[INFO] fetching crate provekit-skyscraper 0.1.0...
[INFO] testing provekit-skyscraper-0.1.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate provekit-skyscraper 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate provekit-skyscraper 0.1.0
[INFO] finished tweaking crates.io crate provekit-skyscraper 0.1.0
[INFO] tweaked toml for crates.io crate provekit-skyscraper 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate provekit-skyscraper 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate provekit-skyscraper 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded condtype v1.3.0
[INFO] [stderr]   Downloaded ark-bn254 v0.5.0
[INFO] [stderr]   Downloaded provekit-fp-rounding v0.1.0
[INFO] [stderr]   Downloaded provekit-bn254-multiplier-codegen v0.1.0
[INFO] [stderr]   Downloaded divan-macros v0.1.21
[INFO] [stderr]   Downloaded divan v0.1.21
[INFO] [stderr]   Downloaded provekit-bn254-multiplier v0.1.0
[INFO] [stderr]   Downloaded provekit-hla v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1aa87607841a9a72e936e68ba2a03ed209e01ed65e87612c781f8b6cad54bd95
[INFO] running `Command { std: "docker" "start" "-a" "1aa87607841a9a72e936e68ba2a03ed209e01ed65e87612c781f8b6cad54bd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aa87607841a9a72e936e68ba2a03ed209e01ed65e87612c781f8b6cad54bd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa87607841a9a72e936e68ba2a03ed209e01ed65e87612c781f8b6cad54bd95", kill_on_drop: false }`
[INFO] [stdout] 1aa87607841a9a72e936e68ba2a03ed209e01ed65e87612c781f8b6cad54bd95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1cdc4bc9df0a1c5dfee0674d3a6fe2e1d8932746a0b6715a12cba9cc0da309f
[INFO] running `Command { std: "docker" "start" "-a" "c1cdc4bc9df0a1c5dfee0674d3a6fe2e1d8932746a0b6715a12cba9cc0da309f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling zerocopy v0.8.47
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling provekit-fp-rounding v0.1.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling provekit-hla v0.1.0
[INFO] [stderr]    Compiling provekit-bn254-multiplier-codegen v0.1.0
[INFO] [stderr]    Compiling provekit-bn254-multiplier v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling num-bigint v0.4.6
[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-1949cf8c6b5b557f/provekit-bn254-multiplier-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(portable_simd)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `provekit-bn254-multiplier` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c1cdc4bc9df0a1c5dfee0674d3a6fe2e1d8932746a0b6715a12cba9cc0da309f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1cdc4bc9df0a1c5dfee0674d3a6fe2e1d8932746a0b6715a12cba9cc0da309f", kill_on_drop: false }`
[INFO] [stdout] c1cdc4bc9df0a1c5dfee0674d3a6fe2e1d8932746a0b6715a12cba9cc0da309f
