[INFO] fetching crate pen-ffi 0.10.23...
[INFO] checking pen-ffi-0.10.23 against try#901d6c1c62d7c61e05469e996c297476078ee06b for pr-157082
[INFO] extracting crate pen-ffi 0.10.23 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate pen-ffi 0.10.23
[INFO] finished tweaking crates.io crate pen-ffi 0.10.23
[INFO] tweaked toml for crates.io crate pen-ffi 0.10.23 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pen-ffi 0.10.23 on toolchain 901d6c1c62d7c61e05469e996c297476078ee06b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 43 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6f93f697d25c314d89bb117a5b751b93ea666b4128360a26ed5ac9f338b6bc99
[INFO] running `Command { std: "docker" "start" "6f93f697d25c314d89bb117a5b751b93ea666b4128360a26ed5ac9f338b6bc99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6f93f697d25c314d89bb117a5b751b93ea666b4128360a26ed5ac9f338b6bc99" "/opt/rustwide/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f93f697d25c314d89bb117a5b751b93ea666b4128360a26ed5ac9f338b6bc99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6f93f697d25c314d89bb117a5b751b93ea666b4128360a26ed5ac9f338b6bc99" "/opt/rustwide/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]     Checking memchr v2.8.2
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking smallvec v1.15.2
[INFO] [stderr]    Compiling unicode-segmentation v1.13.3
[INFO] [stderr]     Checking bytes v1.12.0
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling pen-ffi-macro v0.5.0
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]     Checking pen-ffi v0.10.23 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature `core_intrinsics`: intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stdout]  --> src/cps/async_stack.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     intrinsics::transmute,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-05-28; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `core_intrinsics`: intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stdout]  --> src/future/from_closure.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::{future::poll_fn, intrinsics::transmute, task::Poll};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-05-28; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pen-ffi` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6f93f697d25c314d89bb117a5b751b93ea666b4128360a26ed5ac9f338b6bc99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f93f697d25c314d89bb117a5b751b93ea666b4128360a26ed5ac9f338b6bc99", kill_on_drop: false }`
[INFO] [stdout] 6f93f697d25c314d89bb117a5b751b93ea666b4128360a26ed5ac9f338b6bc99
