[INFO] fetching crate lovm2_std 0.4.8...
[INFO] testing lovm2_std-0.4.8 against 1.91.0 for beta-1.92-2
[INFO] extracting crate lovm2_std 0.4.8 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate lovm2_std 0.4.8
[INFO] finished tweaking crates.io crate lovm2_std 0.4.8
[INFO] tweaked toml for crates.io crate lovm2_std 0.4.8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lovm2_std 0.4.8 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 186 packages to latest compatible versions
[INFO] [stderr]       Adding httptest v0.14.0 (available: v0.16.3)
[INFO] [stderr]       Adding tiny_http v0.7.0 (available: v0.12.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lovm2_module v0.1.0
[INFO] [stderr]   Downloaded httptest v0.14.0
[INFO] [stderr]   Downloaded tiny_http v0.7.0
[INFO] [stderr]   Downloaded lovm2_core v0.4.8
[INFO] [stderr]   Downloaded dirs v3.0.2
[INFO] [stderr]   Downloaded curl v0.4.49
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] [stderr]   Downloaded curl-sys v0.4.83+curl-8.15.0
[INFO] [stderr]   Downloaded chunked_transfer v1.5.0
[INFO] [stderr]   Downloaded ascii v1.1.0
[INFO] [stderr]   Downloaded bstr v0.2.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7817c3d1b9fe775c98318b9925be05ee3df1c804a3d34b98a59746287f1612d
[INFO] running `Command { std: "docker" "start" "-a" "b7817c3d1b9fe775c98318b9925be05ee3df1c804a3d34b98a59746287f1612d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7817c3d1b9fe775c98318b9925be05ee3df1c804a3d34b98a59746287f1612d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7817c3d1b9fe775c98318b9925be05ee3df1c804a3d34b98a59746287f1612d", kill_on_drop: false }`
[INFO] [stdout] b7817c3d1b9fe775c98318b9925be05ee3df1c804a3d34b98a59746287f1612d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 195431ef16d418cc71886ac429ae316eec535dc88d66725e49d51726d6096d59
[INFO] running `Command { std: "docker" "start" "-a" "195431ef16d418cc71886ac429ae316eec535dc88d66725e49d51726d6096d59", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling cc v1.2.44
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling writeable v0.6.2
[INFO] [stderr]    Compiling litemap v0.8.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.1.1
[INFO] [stderr]    Compiling icu_properties_data v2.1.1
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling openssl v0.10.74
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling openssl-sys v0.9.110
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling curl-sys v0.4.83+curl-8.15.0
[INFO] [stderr]    Compiling curl v0.4.49
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling ascii v1.1.0
[INFO] [stderr]    Compiling chunked_transfer v1.5.0
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling lovm2_module v0.1.0
[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/lovm2_module-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lovm2_module` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "195431ef16d418cc71886ac429ae316eec535dc88d66725e49d51726d6096d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "195431ef16d418cc71886ac429ae316eec535dc88d66725e49d51726d6096d59", kill_on_drop: false }`
[INFO] [stdout] 195431ef16d418cc71886ac429ae316eec535dc88d66725e49d51726d6096d59