[INFO] fetching crate flowmacro 0.142.0...
[INFO] documenting flowmacro-0.142.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate flowmacro 0.142.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate flowmacro 0.142.0 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] 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-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flowcore v0.142.0
[INFO] [stderr]   Downloaded simpath v2.5.0
[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] 0f5f9be210f22b8ddd06759c8603e43f80cbde0393de0412755c16f8ec4c4b15
[INFO] running `Command { std: "docker" "start" "-a" "0f5f9be210f22b8ddd06759c8603e43f80cbde0393de0412755c16f8ec4c4b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f5f9be210f22b8ddd06759c8603e43f80cbde0393de0412755c16f8ec4c4b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5f9be210f22b8ddd06759c8603e43f80cbde0393de0412755c16f8ec4c4b15", kill_on_drop: false }`
[INFO] [stdout] 0f5f9be210f22b8ddd06759c8603e43f80cbde0393de0412755c16f8ec4c4b15
[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] 6a7250e951b0d4027feabd2d5306fd875590b040a83e11c398527310b9536514
[INFO] running `Command { std: "docker" "start" "-a" "6a7250e951b0d4027feabd2d5306fd875590b040a83e11c398527310b9536514", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking indexmap v2.2.3
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling curl v0.4.46
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking winnow v0.6.1
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking unsafe-libyaml v0.2.10
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling openssl-sys v0.9.99
[INFO] [stderr]    Compiling libz-sys v1.1.15
[INFO] [stderr]    Compiling curl-sys v0.4.72+curl-8.6.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling serde_derive v1.0.196
[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 v0.9.31
[INFO] [stderr]     Checking toml_edit v0.22.5
[INFO] [stderr]     Checking simpath v2.5.0
[INFO] [stderr]     Checking toml v0.8.10
[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 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/1.76.0-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=7eaff2dffb62e96e -L dependency=/opt/rustwide/target/debug/deps --extern flowcore=/opt/rustwide/target/debug/deps/libflowcore-0e8672563af0d68c.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1bc556be54688c37.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-44762e16f83d10ff.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-6dad2ebc764edcee.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-7eae4cfa4ff9c0d9.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.142.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6a7250e951b0d4027feabd2d5306fd875590b040a83e11c398527310b9536514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a7250e951b0d4027feabd2d5306fd875590b040a83e11c398527310b9536514", kill_on_drop: false }`
[INFO] [stdout] 6a7250e951b0d4027feabd2d5306fd875590b040a83e11c398527310b9536514
[INFO] documenting flowmacro-0.142.0 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate flowmacro 0.142.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate flowmacro 0.142.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba8445d0646542a0cecae5c83148197af5dd6b10a961ce8861e69ec4fdd2feb7
[INFO] running `Command { std: "docker" "start" "-a" "ba8445d0646542a0cecae5c83148197af5dd6b10a961ce8861e69ec4fdd2feb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba8445d0646542a0cecae5c83148197af5dd6b10a961ce8861e69ec4fdd2feb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8445d0646542a0cecae5c83148197af5dd6b10a961ce8861e69ec4fdd2feb7", kill_on_drop: false }`
[INFO] [stdout] ba8445d0646542a0cecae5c83148197af5dd6b10a961ce8861e69ec4fdd2feb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dd751cad8325271a841190fea013fa734afa13e54aa6714b2fbfe6d869517e7
[INFO] running `Command { std: "docker" "start" "-a" "0dd751cad8325271a841190fea013fa734afa13e54aa6714b2fbfe6d869517e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling curl v0.4.46
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking indexmap v2.2.3
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking winnow v0.6.1
[INFO] [stderr]     Checking ryu v1.0.16
[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 addr2line v0.21.0
[INFO] [stderr]    Compiling openssl-sys v0.9.99
[INFO] [stderr]    Compiling libz-sys v1.1.15
[INFO] [stderr]    Compiling curl-sys v0.4.72+curl-8.6.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling serde_derive v1.0.196
[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 v0.9.31
[INFO] [stderr]     Checking toml_edit v0.22.5
[INFO] [stderr]     Checking simpath v2.5.0
[INFO] [stderr]     Checking toml v0.8.10
[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-2024-02-10-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=314b2883f4892d76 -L dependency=/opt/rustwide/target/debug/deps --extern flowcore=/opt/rustwide/target/debug/deps/libflowcore-87afbf33dfb656d8.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-754bef7b7fa42b0e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8d9e10a0b15b51fc.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-872198411c8d1651.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-ea93a35bef270903.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.142.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0dd751cad8325271a841190fea013fa734afa13e54aa6714b2fbfe6d869517e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd751cad8325271a841190fea013fa734afa13e54aa6714b2fbfe6d869517e7", kill_on_drop: false }`
[INFO] [stdout] 0dd751cad8325271a841190fea013fa734afa13e54aa6714b2fbfe6d869517e7
