[INFO] fetching crate fel4-config 0.3.2...
[INFO] checking fel4-config-0.3.2 against try#901d6c1c62d7c61e05469e996c297476078ee06b for pr-157082
[INFO] extracting crate fel4-config 0.3.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fel4-config 0.3.2
[INFO] finished tweaking crates.io crate fel4-config 0.3.2
[INFO] tweaked toml for crates.io crate fel4-config 0.3.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fel4-config 0.3.2 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 52 packages to latest compatible versions
[INFO] [stderr]       Adding multimap v0.4.0 (available: v0.10.1)
[INFO] [stderr]       Adding proptest v0.8.7 (available: v1.11.0)
[INFO] [stderr]       Adding toml v0.4.10 (available: v1.1.2+spec-1.1.0)
[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] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `fel4-config` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6fe33ee6b4b40cafdfa4f0763a69aa43b39cc52a6cde1a79b297b384cc643862
[INFO] running `Command { std: "docker" "start" "6fe33ee6b4b40cafdfa4f0763a69aa43b39cc52a6cde1a79b297b384cc643862", 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" "6fe33ee6b4b40cafdfa4f0763a69aa43b39cc52a6cde1a79b297b384cc643862" "/opt/rustwide/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fe33ee6b4b40cafdfa4f0763a69aa43b39cc52a6cde1a79b297b384cc643862", 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" "6fe33ee6b4b40cafdfa4f0763a69aa43b39cc52a6cde1a79b297b384cc643862" "/opt/rustwide/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `fel4-config` (manifest) generated 1 warning
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking bitflags v2.13.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking shlex v2.0.1
[INFO] [stderr]     Checking find-msvc-tools v0.1.9
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking once_cell v1.21.4
[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]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.4.2/src/impls.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use core::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] [stderr]     Checking cc v1.2.64
[INFO] [stderr]     Checking rustix v1.1.4
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rand_core` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6fe33ee6b4b40cafdfa4f0763a69aa43b39cc52a6cde1a79b297b384cc643862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe33ee6b4b40cafdfa4f0763a69aa43b39cc52a6cde1a79b297b384cc643862", kill_on_drop: false }`
[INFO] [stdout] 6fe33ee6b4b40cafdfa4f0763a69aa43b39cc52a6cde1a79b297b384cc643862
