[INFO] fetching crate rle-bitset 0.1.0...
[INFO] testing rle-bitset-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rle-bitset 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rle-bitset 0.1.0
[INFO] finished tweaking crates.io crate rle-bitset 0.1.0
[INFO] tweaked toml for crates.io crate rle-bitset 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rle-bitset 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding primitive_traits v0.1.0 (available: v0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04d23b8fe5d0b189c61bc74d2e36e5bfccbfeccb8a825b91a8ee5d8b2fe73fc5
[INFO] running `Command { std: "docker" "start" "-a" "04d23b8fe5d0b189c61bc74d2e36e5bfccbfeccb8a825b91a8ee5d8b2fe73fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d23b8fe5d0b189c61bc74d2e36e5bfccbfeccb8a825b91a8ee5d8b2fe73fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d23b8fe5d0b189c61bc74d2e36e5bfccbfeccb8a825b91a8ee5d8b2fe73fc5", kill_on_drop: false }`
[INFO] [stdout] 04d23b8fe5d0b189c61bc74d2e36e5bfccbfeccb8a825b91a8ee5d8b2fe73fc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6b0afe495552c97983ccc62f3ed532b215f804b89f17979435a863007bbad84
[INFO] running `Command { std: "docker" "start" "-a" "e6b0afe495552c97983ccc62f3ed532b215f804b89f17979435a863007bbad84", kill_on_drop: false }`
[INFO] [stderr]    Compiling primitive_traits v0.1.0
[INFO] [stderr]    Compiling rle-bitset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "e6b0afe495552c97983ccc62f3ed532b215f804b89f17979435a863007bbad84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6b0afe495552c97983ccc62f3ed532b215f804b89f17979435a863007bbad84", kill_on_drop: false }`
[INFO] [stdout] e6b0afe495552c97983ccc62f3ed532b215f804b89f17979435a863007bbad84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f373ac00613155fccd290cb074fa838288a974d18c293bf5d04db759ea619eb
[INFO] running `Command { std: "docker" "start" "-a" "6f373ac00613155fccd290cb074fa838288a974d18c293bf5d04db759ea619eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rle-bitset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/test.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `rle-bitset` (test "test") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6f373ac00613155fccd290cb074fa838288a974d18c293bf5d04db759ea619eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f373ac00613155fccd290cb074fa838288a974d18c293bf5d04db759ea619eb", kill_on_drop: false }`
[INFO] [stdout] 6f373ac00613155fccd290cb074fa838288a974d18c293bf5d04db759ea619eb
