[INFO] fetching crate serde_traitobject 0.2.9...
[INFO] testing serde_traitobject-0.2.9 against 1.91.0 for beta-1.92-2
[INFO] extracting crate serde_traitobject 0.2.9 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate serde_traitobject 0.2.9
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde_traitobject 0.2.9
[INFO] tweaked toml for crates.io crate serde_traitobject 0.2.9 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_traitobject 0.2.9 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] crate crates.io crate serde_traitobject 0.2.9 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding js-sys v0.3.82
[INFO] [stderr]       Adding minicov v0.3.7
[INFO] [stderr]       Adding same-file v1.0.6
[INFO] [stderr]       Adding walkdir v2.5.0
[INFO] [stderr]       Adding wasm-bindgen v0.2.105
[INFO] [stderr]       Adding wasm-bindgen-futures v0.4.55
[INFO] [stderr]       Adding wasm-bindgen-macro v0.2.105
[INFO] [stderr]       Adding wasm-bindgen-macro-support v0.2.105
[INFO] [stderr]       Adding wasm-bindgen-shared v0.2.105
[INFO] [stderr]       Adding wasm-bindgen-test v0.3.55
[INFO] [stderr]       Adding wasm-bindgen-test-macro v0.3.55
[INFO] [stderr]       Adding web-sys v0.3.82
[INFO] [stderr]       Adding winapi-util v0.1.11
[INFO] [stderr]       Adding windows-link v0.2.1
[INFO] [stderr]       Adding windows-sys v0.61.2
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_closure v0.3.3
[INFO] [stderr]   Downloaded relative v0.2.2
[INFO] [stderr]   Downloaded serde_closure_derive v0.3.3
[INFO] [stderr]   Downloaded build_id v0.2.1
[INFO] [stderr]   Downloaded metatype v0.2.2
[INFO] [stderr]   Downloaded procinfo v0.4.2
[INFO] [stderr]   Downloaded palaver v0.2.8
[INFO] [stderr]   Downloaded nom v2.2.1
[INFO] [stderr]   Downloaded nix v0.15.0
[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] 4b0ac2cf2fb917c9ffb4c0b8aefd2185ae5f19c17b16624b6fa7421d2ba2d841
[INFO] running `Command { std: "docker" "start" "-a" "4b0ac2cf2fb917c9ffb4c0b8aefd2185ae5f19c17b16624b6fa7421d2ba2d841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b0ac2cf2fb917c9ffb4c0b8aefd2185ae5f19c17b16624b6fa7421d2ba2d841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b0ac2cf2fb917c9ffb4c0b8aefd2185ae5f19c17b16624b6fa7421d2ba2d841", kill_on_drop: false }`
[INFO] [stdout] 4b0ac2cf2fb917c9ffb4c0b8aefd2185ae5f19c17b16624b6fa7421d2ba2d841
[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] 5b9a0a5b3a443bdac3872531b2320984d6e093722d4b7a6a7ef1b9d9be991ef6
[INFO] running `Command { std: "docker" "start" "-a" "5b9a0a5b3a443bdac3872531b2320984d6e093722d4b7a6a7ef1b9d9be991ef6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling build_id v0.2.1
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling relative v0.2.2
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling metatype v0.2.2
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling procinfo v0.4.2
[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/metatype-0.2.2/src/lib.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | #![feature(arbitrary_self_types_pointers)]
[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/metatype-0.2.2/src/lib.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![feature(ptr_metadata)]
[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/metatype-0.2.2/src/lib.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | #![feature(specialization)]
[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 `metatype` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5b9a0a5b3a443bdac3872531b2320984d6e093722d4b7a6a7ef1b9d9be991ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9a0a5b3a443bdac3872531b2320984d6e093722d4b7a6a7ef1b9d9be991ef6", kill_on_drop: false }`
[INFO] [stdout] 5b9a0a5b3a443bdac3872531b2320984d6e093722d4b7a6a7ef1b9d9be991ef6