[INFO] fetching crate fp2 0.2.0...
[INFO] testing fp2-0.2.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate fp2 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate fp2 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fp2 0.2.0
[INFO] tweaked toml for crates.io crate fp2 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fp2 0.2.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fp2 0.2.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha2 v0.10.8
[INFO] [stderr]   Downloaded plotters-backend v0.3.7
[INFO] [stderr]   Downloaded tinytemplate v1.2.1
[INFO] [stderr]   Downloaded anes v0.1.6
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[INFO] [stderr]   Downloaded half v2.4.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.18
[INFO] [stderr]   Downloaded itertools v0.10.5
[INFO] [stderr]   Downloaded clap_builder v4.5.27
[INFO] [stderr]   Downloaded serde_json v1.0.137
[INFO] [stderr]   Downloaded ryu v1.0.19
[INFO] [stderr]   Downloaded unicode-ident v1.0.16
[INFO] [stderr]   Downloaded libc v0.2.169
[INFO] [stderr]   Downloaded rayon-core v1.12.1
[INFO] [stderr]   Downloaded serde v1.0.217
[INFO] [stderr]   Downloaded rayon v1.10.0
[INFO] [stderr]   Downloaded regex-automata v0.4.9
[INFO] [stderr]   Downloaded plotters v0.3.7
[INFO] [stderr]   Downloaded serde_derive v1.0.217
[INFO] [stderr]   Downloaded aho-corasick v1.1.3
[INFO] [stderr]   Downloaded criterion v0.5.1
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[INFO] [stderr]   Downloaded oorandom v11.1.4
[INFO] [stderr]   Downloaded regex v1.11.1
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[INFO] [stderr]   Downloaded proc-macro2 v1.0.93
[INFO] [stderr]   Downloaded syn v2.0.96
[INFO] [stderr]   Downloaded quote v1.0.38
[INFO] [stderr]   Downloaded cast v0.3.0
[INFO] [stderr]   Downloaded regex-syntax v0.8.5
[INFO] [stderr]   Downloaded criterion-plot v0.5.0
[INFO] [stderr]   Downloaded hermit-abi v0.4.0
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[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.100
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[INFO] [stderr]   Downloaded itoa v1.0.14
[INFO] [stderr]   Downloaded ciborium-io v0.2.2
[INFO] [stderr]   Downloaded crunchy v0.2.3
[INFO] [stderr]   Downloaded anstyle v1.0.10
[INFO] [stderr]   Downloaded clap_lex v0.7.4
[INFO] [stderr]   Downloaded web-sys v0.3.77
[INFO] [stderr]   Downloaded clap v4.5.27
[INFO] [stderr]   Downloaded js-sys v0.3.77
[INFO] [stderr]   Downloaded rustversion v1.0.19
[INFO] [stderr]   Downloaded log v0.4.25
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.100
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.100
[INFO] [stderr]   Downloaded walkdir v2.5.0
[INFO] [stderr]   Downloaded num-integer v0.1.46
[INFO] [stderr]   Downloaded num-bigint v0.4.6
[INFO] [stderr]   Downloaded cpufeatures v0.2.17
[INFO] [stderr]   Downloaded winapi-util v0.1.9
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a66cf3465d14e2f8a27f4c864d55c7eee36f732cf708013e0252c407eb0a4b8
[INFO] running `Command { std: "docker" "start" "-a" "3a66cf3465d14e2f8a27f4c864d55c7eee36f732cf708013e0252c407eb0a4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a66cf3465d14e2f8a27f4c864d55c7eee36f732cf708013e0252c407eb0a4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a66cf3465d14e2f8a27f4c864d55c7eee36f732cf708013e0252c407eb0a4b8", kill_on_drop: false }`
[INFO] [stdout] 3a66cf3465d14e2f8a27f4c864d55c7eee36f732cf708013e0252c407eb0a4b8
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87d18d1414e55f54bfee7d3479422024b46f9c118944520c85cd660ebbb782d7
[INFO] running `Command { std: "docker" "start" "-a" "87d18d1414e55f54bfee7d3479422024b46f9c118944520c85cd660ebbb782d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling fp2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(generic_const_exprs)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fp2` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "87d18d1414e55f54bfee7d3479422024b46f9c118944520c85cd660ebbb782d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87d18d1414e55f54bfee7d3479422024b46f9c118944520c85cd660ebbb782d7", kill_on_drop: false }`
[INFO] [stdout] 87d18d1414e55f54bfee7d3479422024b46f9c118944520c85cd660ebbb782d7