[INFO] fetching crate rIC3 1.5.1...
[INFO] testing rIC3-1.5.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate rIC3 1.5.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rIC3 1.5.1
[INFO] finished tweaking crates.io crate rIC3 1.5.1
[INFO] tweaked toml for crates.io crate rIC3 1.5.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rIC3 1.5.1 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 rIC3 1.5.1 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 giputils v0.3.5
[INFO] [stderr]   Downloaded ctrlc v3.4.7
[INFO] [stderr]   Downloaded bitfield-struct v0.11.0
[INFO] [stderr]   Downloaded wasi v0.14.3+wasi-0.2.4
[INFO] [stderr]   Downloaded cc v1.2.35
[INFO] [stderr]   Downloaded attr_alias v0.1.4
[INFO] [stderr]   Downloaded aig v0.4.6
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.0
[INFO] [stderr]   Downloaded wit-bindgen v0.45.0
[INFO] [stderr]   Downloaded tempfile v3.21.0
[INFO] [stderr]   Downloaded satif-kissat v0.5.2
[INFO] [stderr]   Downloaded process_control v5.1.1
[INFO] [stderr]   Downloaded btor v0.2.1
[INFO] [stderr]   Downloaded logicrs v0.6.0
[INFO] [stderr]   Downloaded satif-cadical v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0db37e8561faa2df0a4c02ae2df925b305ae9d70750c5293283777512987461d
[INFO] running `Command { std: "docker" "start" "-a" "0db37e8561faa2df0a4c02ae2df925b305ae9d70750c5293283777512987461d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0db37e8561faa2df0a4c02ae2df925b305ae9d70750c5293283777512987461d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0db37e8561faa2df0a4c02ae2df925b305ae9d70750c5293283777512987461d", kill_on_drop: false }`
[INFO] [stdout] 0db37e8561faa2df0a4c02ae2df925b305ae9d70750c5293283777512987461d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8fb7c4f0ca94e12d0a3aedbf3c25a63067824b153e2c5ab14fb396dff489587c
[INFO] running `Command { std: "docker" "start" "-a" "8fb7c4f0ca94e12d0a3aedbf3c25a63067824b153e2c5ab14fb396dff489587c", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling find-msvc-tools v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling inventory v0.3.21
[INFO] [stderr]    Compiling cc v1.2.35
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling anstream v0.6.20
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling attr_alias v0.1.4
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling clap_builder v4.5.47
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling jiff v0.2.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling tempfile v3.21.0
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling process_control v5.1.1
[INFO] [stderr]    Compiling giputils v0.3.5
[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/giputils-0.3.5/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(get_mut_unchecked, 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 `giputils` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8fb7c4f0ca94e12d0a3aedbf3c25a63067824b153e2c5ab14fb396dff489587c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb7c4f0ca94e12d0a3aedbf3c25a63067824b153e2c5ab14fb396dff489587c", kill_on_drop: false }`
[INFO] [stdout] 8fb7c4f0ca94e12d0a3aedbf3c25a63067824b153e2c5ab14fb396dff489587c