[INFO] fetching crate json2toml 0.1.1...
[INFO] documenting json2toml-0.1.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate json2toml 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate json2toml 0.1.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate json2toml 0.1.1
[INFO] finished tweaking crates.io crate json2toml 0.1.1
[INFO] tweaked toml for crates.io crate json2toml 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate json2toml 0.1.1 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.68
[INFO] [stderr]   Downloaded toml v0.5.10
[INFO] [stderr]   Downloaded serde_json v1.0.91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68267e1bab1b972f162b21218230ce10f0e2e5c34b30deff71e3a4a8c65e4076
[INFO] running `Command { std: "docker" "start" "-a" "68267e1bab1b972f162b21218230ce10f0e2e5c34b30deff71e3a4a8c65e4076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68267e1bab1b972f162b21218230ce10f0e2e5c34b30deff71e3a4a8c65e4076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68267e1bab1b972f162b21218230ce10f0e2e5c34b30deff71e3a4a8c65e4076", kill_on_drop: false }`
[INFO] [stdout] 68267e1bab1b972f162b21218230ce10f0e2e5c34b30deff71e3a4a8c65e4076
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b514342971827a2e22d7ce36bfb97a2b6c610ced20172b9af864fedfa0ddc65
[INFO] running `Command { std: "docker" "start" "-a" "1b514342971827a2e22d7ce36bfb97a2b6c610ced20172b9af864fedfa0ddc65", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[INFO] [stderr]    Compiling rustix v0.36.6
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking is-terminal v0.4.2
[INFO] [stderr]     Checking clap v4.0.32
[INFO] [stderr]     Checking toml v0.5.10
[INFO] [stderr]  Documenting json2toml v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(file_create_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `json2toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name json2toml src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=c75bc1ee15bafaf9 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-e10f272691c52b60.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-567bae369a4092e2.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-28ddeaf2378ce599.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2cfd2effdeacff4a.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1b514342971827a2e22d7ce36bfb97a2b6c610ced20172b9af864fedfa0ddc65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b514342971827a2e22d7ce36bfb97a2b6c610ced20172b9af864fedfa0ddc65", kill_on_drop: false }`
[INFO] [stdout] 1b514342971827a2e22d7ce36bfb97a2b6c610ced20172b9af864fedfa0ddc65
