[INFO] fetching crate enarx-exec-wasmtime 0.5.0...
[INFO] documenting enarx-exec-wasmtime-0.5.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate enarx-exec-wasmtime 0.5.0 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate enarx-exec-wasmtime 0.5.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enarx-exec-wasmtime 0.5.0
[INFO] finished tweaking crates.io crate enarx-exec-wasmtime 0.5.0
[INFO] tweaked toml for crates.io crate enarx-exec-wasmtime 0.5.0 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate crates.io crate enarx-exec-wasmtime 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded wasmtime-environ v0.36.0
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[INFO] [stderr]   Downloaded is-terminal v0.1.0
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[INFO] [stderr]   Downloaded regalloc v0.0.34
[INFO] [stderr]   Downloaded wiggle-generate v0.36.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 371d7cc2eda7bf739e331876c3273d517e7d9b065a479cfeae553c73776d1048
[INFO] running `Command { std: "docker" "start" "-a" "371d7cc2eda7bf739e331876c3273d517e7d9b065a479cfeae553c73776d1048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "371d7cc2eda7bf739e331876c3273d517e7d9b065a479cfeae553c73776d1048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "371d7cc2eda7bf739e331876c3273d517e7d9b065a479cfeae553c73776d1048", kill_on_drop: false }`
[INFO] [stdout] 371d7cc2eda7bf739e331876c3273d517e7d9b065a479cfeae553c73776d1048
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e8f7dc06e680d2fba9bd91e35a69e49dd00e67832ea1c35a619600fd1610820
[INFO] running `Command { std: "docker" "start" "-a" "0e8f7dc06e680d2fba9bd91e35a69e49dd00e67832ea1c35a619600fd1610820", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
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[INFO] [stderr]    Compiling serde_derive v1.0.137
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[INFO] [stderr]     Checking hashbrown v0.11.2
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[INFO] [stderr]     Checking itoa v1.0.1
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[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking linux-raw-sys v0.0.42
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking fallible-iterator v0.2.0
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[INFO] [stderr]     Checking base64 v0.13.0
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[INFO] [stderr]     Checking chunked_transfer v1.4.0
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[INFO] [stderr]    Compiling psm v0.1.18
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[INFO] [stderr]     Checking digest v0.10.3
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[INFO] [stderr]    Compiling thiserror-impl v1.0.31
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[INFO] [stderr]    Compiling der_derive v0.6.0-pre.3
[INFO] [stderr]     Checking cap-time-ext v0.24.3
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.22.3
[INFO] [stderr]     Checking der v0.6.0-pre.3
[INFO] [stderr]     Checking spki v0.6.0-pre.2
[INFO] [stderr]     Checking sec1 v0.3.0-pre.1
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking x509-cert v0.0.2
[INFO] [stderr]     Checking pkcs8 v0.9.0-pre.1
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]    Compiling witx v0.9.1
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[INFO] [stderr]     Checking cranelift-entity v0.83.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking url v2.2.2
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[INFO] [stderr]    Compiling wiggle-macro v0.36.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking cranelift-bforest v0.83.0
[INFO] [stderr]     Checking wasmtime-types v0.36.0
[INFO] [stderr]     Checking ureq v2.4.0
[INFO] [stderr]     Checking wasmtime-environ v0.36.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking wasmtime-jit v0.36.0
[INFO] [stderr]     Checking cranelift-frontend v0.83.0
[INFO] [stderr]     Checking cranelift-native v0.83.0
[INFO] [stderr]     Checking cranelift-wasm v0.83.0
[INFO] [stderr]     Checking wasmtime-cranelift v0.36.0
[INFO] [stderr]     Checking wiggle v0.36.0
[INFO] [stderr]     Checking wasi-cap-std-sync v0.36.0
[INFO] [stderr]  Documenting enarx-exec-wasmtime v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `enarx-exec-wasmtime`
[INFO] [stderr] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(core_ffi_c)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name enarx_exec_wasmtime src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2c77c6b3b5a7a12d -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-a2ad8fa07e0781ab.rmeta --extern cap_std=/opt/rustwide/target/debug/deps/libcap_std-f9b13cfff23d1c00.rmeta --extern const_oid=/opt/rustwide/target/debug/deps/libconst_oid-14d508e8d5c50efc.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-d4f03f093a03970e.rmeta --extern getrandom=/opt/rustwide/target/debug/deps/libgetrandom-a074c09e0d463a17.rmeta --extern io_lifetimes=/opt/rustwide/target/debug/deps/libio_lifetimes-0672911aa361e555.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-310bdfb86af4279d.rmeta --extern pkcs8=/opt/rustwide/target/debug/deps/libpkcs8-79d80b6196749d60.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-db1792955aef4dc9.rmeta --extern rustix=/opt/rustwide/target/debug/deps/librustix-ebbad11fa46c4b47.rmeta --extern rustls=/opt/rustwide/target/debug/deps/librustls-f671176e8865ed79.rmeta --extern sec1=/opt/rustwide/target/debug/deps/libsec1-113c1f7bdab9be44.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-b10d63be5974d96c.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-29ca72ef9f28b0cc.rmeta --extern system_interface=/opt/rustwide/target/debug/deps/libsystem_interface-b02bc8c4c6e08294.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-8f07dfef1c83c44c.rmeta --extern ureq=/opt/rustwide/target/debug/deps/libureq-1d743d2d4769fe73.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-515934bcdd100e1e.rmeta --extern wasi_common=/opt/rustwide/target/debug/deps/libwasi_common-88b061e5fe88e775.rmeta --extern wasmtime=/opt/rustwide/target/debug/deps/libwasmtime-a9f5eaa3a03063b5.rmeta --extern wasmtime_wasi=/opt/rustwide/target/debug/deps/libwasmtime_wasi-de54c32252072bf4.rmeta --extern webpki_roots=/opt/rustwide/target/debug/deps/libwebpki_roots-48917902fd50ed00.rmeta --extern wiggle=/opt/rustwide/target/debug/deps/libwiggle-66678b772f5e5107.rmeta --extern x509_cert=/opt/rustwide/target/debug/deps/libx509_cert-46ba80f232456064.rmeta --extern zeroize=/opt/rustwide/target/debug/deps/libzeroize-02684fd0dfd63aa5.rmeta --cap-lints=warn --crate-version 0.5.0` (exit status: 1)
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0e8f7dc06e680d2fba9bd91e35a69e49dd00e67832ea1c35a619600fd1610820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8f7dc06e680d2fba9bd91e35a69e49dd00e67832ea1c35a619600fd1610820", kill_on_drop: false }`
[INFO] [stdout] 0e8f7dc06e680d2fba9bd91e35a69e49dd00e67832ea1c35a619600fd1610820