[INFO] fetching crate wasm-mt-test 0.1.3...
[INFO] documenting wasm-mt-test-0.1.3 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate wasm-mt-test 0.1.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate wasm-mt-test 0.1.3 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasm-mt-test 0.1.3
[INFO] finished tweaking crates.io crate wasm-mt-test 0.1.3
[INFO] tweaked toml for crates.io crate wasm-mt-test 0.1.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded swc_config_macro v0.1.3
[INFO] [stderr]   Downloaded ast_node v0.8.8
[INFO] [stderr]   Downloaded metatype v0.2.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 390760fc4a0e852458754c0b49025ece8e9484883fa842511861e0ac13f00888
[INFO] running `Command { std: "docker" "start" "-a" "390760fc4a0e852458754c0b49025ece8e9484883fa842511861e0ac13f00888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "390760fc4a0e852458754c0b49025ece8e9484883fa842511861e0ac13f00888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390760fc4a0e852458754c0b49025ece8e9484883fa842511861e0ac13f00888", kill_on_drop: false }`
[INFO] [stdout] 390760fc4a0e852458754c0b49025ece8e9484883fa842511861e0ac13f00888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e64e028904cb3753c7cbb89a742c053058002094254ecdcb04d318d60fc6c608
[INFO] running `Command { std: "docker" "start" "-a" "e64e028904cb3753c7cbb89a742c053058002094254ecdcb04d318d60fc6c608", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking if_chain v1.0.2
[INFO] [stderr]     Checking unicode-id v0.3.4
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]    Compiling swc_ecma_ast v0.95.2
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling Inflector v0.11.4
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[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling log v0.4.20
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[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling heapless v0.5.6
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[INFO] [stderr]     Checking nom v2.2.1
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]     Checking smawk v0.3.2
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]     Checking is_ci v1.1.1
[INFO] [stderr]     Checking unicode-linebreak v0.1.5
[INFO] [stderr]     Checking lexical v6.1.1
[INFO] [stderr]     Checking supports-color v1.3.1
[INFO] [stderr]     Checking supports-hyperlinks v1.2.0
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking supports-unicode v1.0.2
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[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]    Compiling relative v0.2.2
[INFO] [stderr]     Checking textwrap v0.15.2
[INFO] [stderr]    Compiling serde_closure v0.3.3
[INFO] [stderr]     Checking retain_mut v0.1.9
[INFO] [stderr]     Checking radix_fmt v1.0.0
[INFO] [stderr]     Checking metatype v0.2.1
[INFO] [stderr]    Compiling swc_atoms v0.4.43
[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-6f17d22bba15001f/metatype-0.2.1/src/lib.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | #![feature(arbitrary_self_types)]
[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-6f17d22bba15001f/metatype-0.2.1/src/lib.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![feature(ptr_metadata)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling backtrace v0.3.69
[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-6f17d22bba15001f/metatype-0.2.1/src/lib.rs:36:1
[INFO] [stdout]    |
[INFO] [stdout] 36 | #![feature(specialization)]
[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-6f17d22bba15001f/metatype-0.2.1/src/lib.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![feature(ptr_metadata)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[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 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e64e028904cb3753c7cbb89a742c053058002094254ecdcb04d318d60fc6c608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64e028904cb3753c7cbb89a742c053058002094254ecdcb04d318d60fc6c608", kill_on_drop: false }`
[INFO] [stdout] e64e028904cb3753c7cbb89a742c053058002094254ecdcb04d318d60fc6c608
