[INFO] fetching crate t3 0.0.4...
[INFO] documenting t3-0.0.4 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate t3 0.0.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate t3 0.0.4 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 t3 0.0.4
[INFO] finished tweaking crates.io crate t3 0.0.4
[INFO] tweaked toml for crates.io crate t3 0.0.4 written to /workspace/builds/worker-7-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 envport v0.1.0
[INFO] [stderr]   Downloaded tracing-stackdriver v0.8.0
[INFO] [stderr]   Downloaded loginit v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] dfdb0f2f6d88698081afe0ae1d3b72ae4ebe41a804250b837a846d0b2e4e5366
[INFO] running `Command { std: "docker" "start" "-a" "dfdb0f2f6d88698081afe0ae1d3b72ae4ebe41a804250b837a846d0b2e4e5366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfdb0f2f6d88698081afe0ae1d3b72ae4ebe41a804250b837a846d0b2e4e5366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfdb0f2f6d88698081afe0ae1d3b72ae4ebe41a804250b837a846d0b2e4e5366", kill_on_drop: false }`
[INFO] [stdout] dfdb0f2f6d88698081afe0ae1d3b72ae4ebe41a804250b837a846d0b2e4e5366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 508c29d94e53fb793460c4273826d9ad6d3783819a3f27962d2b97829e5118fc
[INFO] running `Command { std: "docker" "start" "-a" "508c29d94e53fb793460c4273826d9ad6d3783819a3f27962d2b97829e5118fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling zstd-safe v7.0.0
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling jobserver v0.1.27
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking brotli-decompressor v2.5.1
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking brotli v3.4.0
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling zstd-sys v2.0.9+zstd.1.5.5
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_path_to_error v0.1.15
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking matchit v0.7.3
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking http-range-header v0.3.1
[INFO] [stderr]     Checking coarsetime v0.1.33
[INFO] [stderr]     Checking envport v0.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling prost-derive v0.12.3
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking prost v0.12.3
[INFO] [stderr]     Checking loginit v0.1.8
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking zstd v0.13.0
[INFO] [stderr]     Checking async-compression v0.4.5
[INFO] [stderr]     Checking tower-http v0.4.4
[INFO] [stderr]  Documenting t3 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(min_specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(impl_trait_in_assoc_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 document `t3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name t3 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b4a280bbdb9cf6af -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-d68800cc3d37f729.rmeta --extern axum=/opt/rustwide/target/debug/deps/libaxum-394db8d3bdf59f4e.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-19782e77171d7466.rmeta --extern coarsetime=/opt/rustwide/target/debug/deps/libcoarsetime-749daa683eaf1ebe.rmeta --extern envport=/opt/rustwide/target/debug/deps/libenvport-aec809b97602e7d5.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-cff3abe7ee61168f.rmeta --extern loginit=/opt/rustwide/target/debug/deps/libloginit-6142f263f1b95437.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-94384e5ea6a973b7.rmeta --extern prost=/opt/rustwide/target/debug/deps/libprost-e1d158466cb2e112.rmeta --extern tower=/opt/rustwide/target/debug/deps/libtower-c6dd5f45d33bbf3d.rmeta --extern tower_http=/opt/rustwide/target/debug/deps/libtower_http-164aa68ffec1db5c.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-2cfc4f3cabd2b604.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-b6ceddb3615fe89c.rmeta --cap-lints=warn --crate-version 0.0.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "508c29d94e53fb793460c4273826d9ad6d3783819a3f27962d2b97829e5118fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "508c29d94e53fb793460c4273826d9ad6d3783819a3f27962d2b97829e5118fc", kill_on_drop: false }`
[INFO] [stdout] 508c29d94e53fb793460c4273826d9ad6d3783819a3f27962d2b97829e5118fc
