[INFO] fetching crate scuttle-core 0.4.0...
[INFO] testing scuttle-core-0.4.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate scuttle-core 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate scuttle-core 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate scuttle-core 0.4.0
[INFO] tweaked toml for crates.io crate scuttle-core 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scuttle-core 0.4.0 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 scuttle-core 0.4.0 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 scuttle-proc v0.2.0
[INFO] [stderr]   Downloaded pigeons v0.1.1
[INFO] [stderr]   Downloaded cpu-time v1.0.0
[INFO] [stderr]   Downloaded cadical-veripb-tracer v0.1.0
[INFO] [stderr]   Downloaded tempfile v3.19.1
[INFO] [stderr]   Downloaded openssl-sys v0.9.103
[INFO] [stderr]   Downloaded maxpre v0.2.5
[INFO] [stderr]   Downloaded rustsat v0.7.1
[INFO] [stderr]   Downloaded git2 v0.20.1
[INFO] [stderr]   Downloaded visibility v0.1.1
[INFO] [stderr]   Downloaded rustsat-cadical v0.7.1
[INFO] [stderr]   Downloaded libz-sys v1.1.19
[INFO] [stderr]   Downloaded libgit2-sys v0.18.1+1.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e7a8f1bf519978fcd54fbe9b23a3e5b195201e9dac3856c1372857fd91ec87f2
[INFO] running `Command { std: "docker" "start" "-a" "e7a8f1bf519978fcd54fbe9b23a3e5b195201e9dac3856c1372857fd91ec87f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7a8f1bf519978fcd54fbe9b23a3e5b195201e9dac3856c1372857fd91ec87f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a8f1bf519978fcd54fbe9b23a3e5b195201e9dac3856c1372857fd91ec87f2", kill_on_drop: false }`
[INFO] [stdout] e7a8f1bf519978fcd54fbe9b23a3e5b195201e9dac3856c1372857fd91ec87f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cca0c11f36b5f46a1b47e4b453fb4a6f1c871017a15f9deb20846e2c27dba2ee
[INFO] running `Command { std: "docker" "start" "-a" "cca0c11f36b5f46a1b47e4b453fb4a6f1c871017a15f9deb20846e2c27dba2ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling bindgen v0.71.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling cc v1.2.20
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling cpu-time v1.0.0
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling pigeons v0.1.1
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling visibility v0.1.1
[INFO] [stderr]    Compiling rustsat v0.7.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling scuttle-proc v0.2.0
[INFO] [stderr]    Compiling rustsat-cadical v0.7.1
[INFO] [stderr]    Compiling cadical-veripb-tracer v0.1.0
[INFO] [stderr]    Compiling scuttle-core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(try_trait_v2)]
[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 `scuttle-core` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cca0c11f36b5f46a1b47e4b453fb4a6f1c871017a15f9deb20846e2c27dba2ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca0c11f36b5f46a1b47e4b453fb4a6f1c871017a15f9deb20846e2c27dba2ee", kill_on_drop: false }`
[INFO] [stdout] cca0c11f36b5f46a1b47e4b453fb4a6f1c871017a15f9deb20846e2c27dba2ee