[INFO] fetching crate wasm-mt-pool-test 0.1.0...
[INFO] documenting wasm-mt-pool-test-0.1.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate wasm-mt-pool-test 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate wasm-mt-pool-test 0.1.0 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-pool-test 0.1.0
[INFO] finished tweaking crates.io crate wasm-mt-pool-test 0.1.0
[INFO] tweaked toml for crates.io crate wasm-mt-pool-test 0.1.0 written to /workspace/builds/worker-0-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43de3d7da398e00304d4ef8dd3a3043788f7538c0a5dcefbdb13e5f8fe1341bf
[INFO] running `Command { std: "docker" "start" "-a" "43de3d7da398e00304d4ef8dd3a3043788f7538c0a5dcefbdb13e5f8fe1341bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43de3d7da398e00304d4ef8dd3a3043788f7538c0a5dcefbdb13e5f8fe1341bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43de3d7da398e00304d4ef8dd3a3043788f7538c0a5dcefbdb13e5f8fe1341bf", kill_on_drop: false }`
[INFO] [stdout] 43de3d7da398e00304d4ef8dd3a3043788f7538c0a5dcefbdb13e5f8fe1341bf
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/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] 145eb6c55182a35dbd588434de5a229027373b2c8b12bed0b2d12cbbc12df29d
[INFO] running `Command { std: "docker" "start" "-a" "145eb6c55182a35dbd588434de5a229027373b2c8b12bed0b2d12cbbc12df29d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling ahash v0.7.7
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking unicode-id v0.3.4
[INFO] [stderr]     Checking if_chain v1.0.2
[INFO] [stderr]     Checking better_scoped_tls v0.1.1
[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]     Checking typed-arena v2.0.2
[INFO] [stderr]    Compiling ahash v0.8.7
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.89
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling bumpalo v3.14.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]     Checking lexical-parse-integer v0.8.6
[INFO] [stderr]     Checking lexical-write-integer v0.8.5
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling wasm-bindgen v0.2.89
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling build_id v0.2.1
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]     Checking path-clean v0.1.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking lexical-write-float v0.8.5
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking is_ci v1.1.1
[INFO] [stderr]     Checking smawk v0.3.2
[INFO] [stderr]    Compiling relative v0.2.2
[INFO] [stderr]     Checking unicode-linebreak v0.1.5
[INFO] [stderr]    Compiling serde_closure v0.3.3
[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking metatype v0.2.1
[INFO] [stderr]     Checking retain_mut v0.1.9
[INFO] [stderr]     Checking textwrap v0.15.2
[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-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] [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] [stderr]     Checking radix_fmt v1.0.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[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" "145eb6c55182a35dbd588434de5a229027373b2c8b12bed0b2d12cbbc12df29d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "145eb6c55182a35dbd588434de5a229027373b2c8b12bed0b2d12cbbc12df29d", kill_on_drop: false }`
[INFO] [stdout] 145eb6c55182a35dbd588434de5a229027373b2c8b12bed0b2d12cbbc12df29d
