[INFO] fetching crate io-adapters 0.4.0...
[INFO] testing io-adapters-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate io-adapters 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate io-adapters 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate io-adapters 0.4.0
[INFO] tweaked toml for crates.io crate io-adapters 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate io-adapters 0.4.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 76 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23d8e4507ca5cadeb891cf08b4f6db0c050c715e46e7bbf43987540aaed7b124
[INFO] running `Command { std: "docker" "start" "-a" "23d8e4507ca5cadeb891cf08b4f6db0c050c715e46e7bbf43987540aaed7b124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23d8e4507ca5cadeb891cf08b4f6db0c050c715e46e7bbf43987540aaed7b124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d8e4507ca5cadeb891cf08b4f6db0c050c715e46e7bbf43987540aaed7b124", kill_on_drop: false }`
[INFO] [stdout] 23d8e4507ca5cadeb891cf08b4f6db0c050c715e46e7bbf43987540aaed7b124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7db747dbceb1bf6666722b53781f5b2c48029f7faf1a53fad7039579ac0ba192
[INFO] running `Command { std: "docker" "start" "-a" "7db747dbceb1bf6666722b53781f5b2c48029f7faf1a53fad7039579ac0ba192", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-adapters v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "7db747dbceb1bf6666722b53781f5b2c48029f7faf1a53fad7039579ac0ba192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7db747dbceb1bf6666722b53781f5b2c48029f7faf1a53fad7039579ac0ba192", kill_on_drop: false }`
[INFO] [stdout] 7db747dbceb1bf6666722b53781f5b2c48029f7faf1a53fad7039579ac0ba192
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2541dc2e9f9defa28e7cc005bb87a7c8425f9c480fb42285cb14d40f3a0b2101
[INFO] running `Command { std: "docker" "start" "-a" "2541dc2e9f9defa28e7cc005bb87a7c8425f9c480fb42285cb14d40f3a0b2101", kill_on_drop: false }`
[INFO] [stderr]    Compiling typeid v1.0.3
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling erased-serde v0.4.8
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling hashbag v0.1.12
[INFO] [stderr]    Compiling dissimilar v1.0.10
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde-untagged v0.1.9
[INFO] [stderr]    Compiling serde-value v0.7.0
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling cargo-platform v0.2.0
[INFO] [stderr]    Compiling rustdoc-types v0.54.0
[INFO] [stderr]    Compiling expect-test v1.5.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling cargo-util-schemas v0.8.2
[INFO] [stderr]    Compiling cargo-manifest v0.19.1
[INFO] [stderr]    Compiling public-api v0.49.0
[INFO] [stderr]    Compiling cargo_metadata v0.21.0
[INFO] [stderr]    Compiling rustdoc-json v0.9.7
[INFO] [stderr]    Compiling supercilex-tests v0.4.21
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/supercilex-tests-0.4.21/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(exit_status_error)]
[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 `supercilex-tests` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2541dc2e9f9defa28e7cc005bb87a7c8425f9c480fb42285cb14d40f3a0b2101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2541dc2e9f9defa28e7cc005bb87a7c8425f9c480fb42285cb14d40f3a0b2101", kill_on_drop: false }`
[INFO] [stdout] 2541dc2e9f9defa28e7cc005bb87a7c8425f9c480fb42285cb14d40f3a0b2101