[INFO] fetching crate ossa 0.0.1...
[INFO] testing ossa-0.0.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate ossa 0.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate ossa 0.0.1
[INFO] finished tweaking crates.io crate ossa 0.0.1
[INFO] tweaked toml for crates.io crate ossa 0.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ossa 0.0.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ossa 0.0.1 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ossa-crdt v0.0.1
[INFO] [stderr]   Downloaded ossa-typeable-derive v0.0.1
[INFO] [stderr]   Downloaded ossa-typeable v0.0.1
[INFO] [stderr]   Downloaded replace_with v0.1.8
[INFO] [stderr]   Downloaded rand_xoshiro v0.6.0
[INFO] [stderr]   Downloaded bitmaps v2.1.0
[INFO] [stderr]   Downloaded async-session-types v0.1.2
[INFO] [stderr]   Downloaded sized-chunks v0.6.5
[INFO] [stderr]   Downloaded daggy v0.9.0
[INFO] [stderr]   Downloaded im v15.1.0
[INFO] [stderr]   Downloaded ossa-core v0.0.1
[INFO] [stderr]   Downloaded ed25519-dalek v2.2.0
[INFO] [stderr]   Downloaded petgraph v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed02d6830dd6ca669504b5b672b91904389f46f349b005c1313e4cf79ab4b19d
[INFO] running `Command { std: "docker" "start" "-a" "ed02d6830dd6ca669504b5b672b91904389f46f349b005c1313e4cf79ab4b19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed02d6830dd6ca669504b5b672b91904389f46f349b005c1313e4cf79ab4b19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed02d6830dd6ca669504b5b672b91904389f46f349b005c1313e4cf79ab4b19d", kill_on_drop: false }`
[INFO] [stdout] ed02d6830dd6ca669504b5b672b91904389f46f349b005c1313e4cf79ab4b19d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c15d24212367f819917e34ac4469ef9db9d06e4832ba70c63f1ae1c49a78bf4
[INFO] running `Command { std: "docker" "start" "-a" "9c15d24212367f819917e34ac4469ef9db9d06e4832ba70c63f1ae1c49a78bf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling indexmap v2.10.0
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling bs58 v0.5.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling replace_with v0.1.8
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling petgraph v0.8.2
[INFO] [stderr]    Compiling daggy v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling ossa-typeable-derive v0.0.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling async-recursion v1.1.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling async-session-types v0.1.2
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling tokio-util v0.7.15
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/async-session-types-0.1.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/async-session-types-0.1.2/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `async_closure` has been stable since `1.85.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-session-types` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9c15d24212367f819917e34ac4469ef9db9d06e4832ba70c63f1ae1c49a78bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c15d24212367f819917e34ac4469ef9db9d06e4832ba70c63f1ae1c49a78bf4", kill_on_drop: false }`
[INFO] [stdout] 9c15d24212367f819917e34ac4469ef9db9d06e4832ba70c63f1ae1c49a78bf4