[INFO] fetching crate moros 0.12.0...
[INFO] testing moros-0.12.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate moros 0.12.0 into /workspace/builds/worker-4-tc1/source
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate moros 0.12.0
[INFO] finished tweaking crates.io crate moros 0.12.0
[INFO] tweaked toml for crates.io crate moros 0.12.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate moros 0.12.0 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 moros 0.12.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile v0.4.6
[INFO] [stderr]   Downloaded acpi v5.0.0
[INFO] [stderr]   Downloaded bootloader v0.9.33
[INFO] [stderr]   Downloaded thiserror v2.0.4
[INFO] [stderr]   Downloaded aml v0.16.4
[INFO] [stderr]   Downloaded raw-cpuid v10.7.0
[INFO] [stderr]   Downloaded spinning_top v0.2.5
[INFO] [stderr]   Downloaded x86_64 v0.15.2
[INFO] [stderr]   Downloaded defmt-parser v0.4.1
[INFO] [stderr]   Downloaded vte v0.13.1
[INFO] [stderr]   Downloaded raw-cpuid v11.6.0
[INFO] [stderr]   Downloaded nom v8.0.0
[INFO] [stderr]   Downloaded geodate v0.5.0
[INFO] [stderr]   Downloaded chumsky v0.11.1
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded smoltcp v0.12.0
[INFO] [stderr]   Downloaded pc-keyboard v0.8.0
[INFO] [stderr]   Downloaded rand_hc v0.4.0
[INFO] [stderr]   Downloaded thiserror-impl v2.0.4
[INFO] [stderr]   Downloaded defmt-macros v0.4.0
[INFO] [stderr]   Downloaded defmt v0.3.10
[INFO] [stderr]   Downloaded managed v0.8.0
[INFO] [stderr]   Downloaded spin v0.10.0
[INFO] [stderr]   Downloaded uart_16550 v0.4.0
[INFO] [stderr]   Downloaded linked_list_allocator v0.10.5
[INFO] [stderr]   Downloaded pic8259 v0.11.0
[INFO] [stderr]   Downloaded littlewing v0.7.0
[INFO] [stderr]   Downloaded x86 v0.52.0
[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] 6d2aea2ca8e550b6029a0e65177e8caeae11e685f8932eb350ea7e98a63fccfc
[INFO] running `Command { std: "docker" "start" "-a" "6d2aea2ca8e550b6029a0e65177e8caeae11e685f8932eb350ea7e98a63fccfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d2aea2ca8e550b6029a0e65177e8caeae11e685f8932eb350ea7e98a63fccfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d2aea2ca8e550b6029a0e65177e8caeae11e685f8932eb350ea7e98a63fccfc", kill_on_drop: false }`
[INFO] [stdout] 6d2aea2ca8e550b6029a0e65177e8caeae11e685f8932eb350ea7e98a63fccfc
[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] 036b38ede5d349be47e2be7cebaec0eb21902886dd5405715267a32fcad52d2d
[INFO] running `Command { std: "docker" "start" "-a" "036b38ede5d349be47e2be7cebaec0eb21902886dd5405715267a32fcad52d2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling spinning_top v0.2.5
[INFO] [stderr]    Compiling raw-cpuid v10.7.0
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling smoltcp v0.12.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling bootloader v0.9.33
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling volatile v0.4.6
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling x86_64 v0.15.2
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling lazy_static v1.5.0
[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/x86_64-0.15.2/src/lib.rs:5:44
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(feature = "abi_x86_interrupt", feature(abi_x86_interrupt))]
[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/x86_64-0.15.2/src/lib.rs:6:37
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "step_trait", feature(step_trait))]
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling cpufeatures v0.2.11
[INFO] [stderr]    Compiling no-std-compat v0.4.1
[INFO] [stderr]    Compiling managed v0.8.0
[INFO] [stderr]    Compiling chumsky v0.11.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling vte v0.13.1
[INFO] [stderr] error: could not compile `x86_64` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "036b38ede5d349be47e2be7cebaec0eb21902886dd5405715267a32fcad52d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "036b38ede5d349be47e2be7cebaec0eb21902886dd5405715267a32fcad52d2d", kill_on_drop: false }`
[INFO] [stdout] 036b38ede5d349be47e2be7cebaec0eb21902886dd5405715267a32fcad52d2d