[INFO] fetching crate fp2 0.4.2...
[INFO] checking fp2-0.4.2 against 1.95.0 for pr-155915
[INFO] extracting crate fp2 0.4.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate fp2 0.4.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fp2 0.4.2
[INFO] tweaked toml for crates.io crate fp2 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fp2 0.4.2 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 fp2 0.4.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded bumpalo v3.20.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4482aeb5abae200769fa607571e2469a887aad09538e98cf4b6af2730bc1ea6c
[INFO] running `Command { std: "docker" "start" "-a" "4482aeb5abae200769fa607571e2469a887aad09538e98cf4b6af2730bc1ea6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4482aeb5abae200769fa607571e2469a887aad09538e98cf4b6af2730bc1ea6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4482aeb5abae200769fa607571e2469a887aad09538e98cf4b6af2730bc1ea6c", kill_on_drop: false }`
[INFO] [stdout] 4482aeb5abae200769fa607571e2469a887aad09538e98cf4b6af2730bc1ea6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 903cbd14096096cbc0f2be252abe78c1972a21352c5c41d87164891b2edfc166
[INFO] running `Command { std: "docker" "start" "-a" "903cbd14096096cbc0f2be252abe78c1972a21352c5c41d87164891b2edfc166", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.39
[INFO] [stderr]     Checking regex-syntax v0.8.9
[INFO] [stderr]    Compiling syn v2.0.116
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking clap_builder v4.5.59
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking fp2 v0.4.2 (/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] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fp2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "903cbd14096096cbc0f2be252abe78c1972a21352c5c41d87164891b2edfc166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "903cbd14096096cbc0f2be252abe78c1972a21352c5c41d87164891b2edfc166", kill_on_drop: false }`
[INFO] [stdout] 903cbd14096096cbc0f2be252abe78c1972a21352c5c41d87164891b2edfc166
