[INFO] fetching crate flowmacro 0.142.0...
[INFO] documenting flowmacro-0.142.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate flowmacro 0.142.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate flowmacro 0.142.0 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 flowmacro 0.142.0
[INFO] finished tweaking crates.io crate flowmacro 0.142.0
[INFO] tweaked toml for crates.io crate flowmacro 0.142.0 written to /workspace/builds/worker-3-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 simpath v2.5.0
[INFO] [stderr]   Downloaded flowcore v0.142.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] aaeb1ed01798a2af3ce72ee61b64de5796e45a4bdacac45d9119b07c452cc56c
[INFO] running `Command { std: "docker" "start" "-a" "aaeb1ed01798a2af3ce72ee61b64de5796e45a4bdacac45d9119b07c452cc56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaeb1ed01798a2af3ce72ee61b64de5796e45a4bdacac45d9119b07c452cc56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaeb1ed01798a2af3ce72ee61b64de5796e45a4bdacac45d9119b07c452cc56c", kill_on_drop: false }`
[INFO] [stdout] aaeb1ed01798a2af3ce72ee61b64de5796e45a4bdacac45d9119b07c452cc56c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ce34ed2590fa29b870047db27dc6bd0a50ff49b97c90ef23762e7bf9e5116a8c
[INFO] running `Command { std: "docker" "start" "-a" "ce34ed2590fa29b870047db27dc6bd0a50ff49b97c90ef23762e7bf9e5116a8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking winnow v0.5.33
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking unsafe-libyaml v0.2.10
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]    Compiling curl-sys v0.4.70+curl-8.5.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_yaml v0.9.30
[INFO] [stderr]     Checking toml_edit v0.21.0
[INFO] [stderr]     Checking simpath v2.5.0
[INFO] [stderr]     Checking toml v0.8.8
[INFO] [stderr]     Checking flowcore v0.142.0
[INFO] [stderr]  Documenting flowmacro v0.142.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_span)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `flowmacro`
[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 proc-macro --crate-name flowmacro src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=94577ff8b01850bd -L dependency=/opt/rustwide/target/debug/deps --extern flowcore=/opt/rustwide/target/debug/deps/libflowcore-7a5c4babbc303ee2.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-3889f6209a44556f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b5c91c32bf6deb64.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-f1bda662236ef1a3.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-7ad04b23e8ad607e.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.142.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ce34ed2590fa29b870047db27dc6bd0a50ff49b97c90ef23762e7bf9e5116a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce34ed2590fa29b870047db27dc6bd0a50ff49b97c90ef23762e7bf9e5116a8c", kill_on_drop: false }`
[INFO] [stdout] ce34ed2590fa29b870047db27dc6bd0a50ff49b97c90ef23762e7bf9e5116a8c
[INFO] documenting flowmacro-0.142.0 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate flowmacro 0.142.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate flowmacro 0.142.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flowmacro 0.142.0
[INFO] finished tweaking crates.io crate flowmacro 0.142.0
[INFO] tweaked toml for crates.io crate flowmacro 0.142.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 617ed313ce69c5c41f2c0cefb21ba54920a5e1152223acc814611b6b182fcb9b
[INFO] running `Command { std: "docker" "start" "-a" "617ed313ce69c5c41f2c0cefb21ba54920a5e1152223acc814611b6b182fcb9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "617ed313ce69c5c41f2c0cefb21ba54920a5e1152223acc814611b6b182fcb9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "617ed313ce69c5c41f2c0cefb21ba54920a5e1152223acc814611b6b182fcb9b", kill_on_drop: false }`
[INFO] [stdout] 617ed313ce69c5c41f2c0cefb21ba54920a5e1152223acc814611b6b182fcb9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc2663087ac1ff08d3b69882e2c509e53ea1e8b08c962f62eccdb15b9fa01a1a
[INFO] running `Command { std: "docker" "start" "-a" "cc2663087ac1ff08d3b69882e2c509e53ea1e8b08c962f62eccdb15b9fa01a1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking winnow v0.5.33
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking unsafe-libyaml v0.2.10
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling curl-sys v0.4.70+curl-8.5.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_yaml v0.9.30
[INFO] [stderr]     Checking toml_edit v0.21.0
[INFO] [stderr]     Checking simpath v2.5.0
[INFO] [stderr]     Checking toml v0.8.8
[INFO] [stderr]     Checking flowcore v0.142.0
[INFO] [stderr]  Documenting flowmacro v0.142.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_span)]
[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 `flowmacro`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type proc-macro --crate-name flowmacro src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e2068ec76bb96e54 -L dependency=/opt/rustwide/target/debug/deps --extern flowcore=/opt/rustwide/target/debug/deps/libflowcore-0db39f1f571a8936.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d7586fc23a7202ec.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-af317973e368b4b7.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-3eb872de846961a3.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-5f57c761b3ff8b34.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.142.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "cc2663087ac1ff08d3b69882e2c509e53ea1e8b08c962f62eccdb15b9fa01a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2663087ac1ff08d3b69882e2c509e53ea1e8b08c962f62eccdb15b9fa01a1a", kill_on_drop: false }`
[INFO] [stdout] cc2663087ac1ff08d3b69882e2c509e53ea1e8b08c962f62eccdb15b9fa01a1a
