[INFO] fetching crate drone-core 0.14.3...
[INFO] documenting drone-core-0.14.3 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate drone-core 0.14.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate drone-core 0.14.3 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] removed /workspace/builds/worker-6-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate drone-core 0.14.3
[INFO] finished tweaking crates.io crate drone-core 0.14.3
[INFO] tweaked toml for crates.io crate drone-core 0.14.3 written to /workspace/builds/worker-6-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 drone-config v0.14.0
[INFO] [stderr]   Downloaded drone-core-macros v0.14.3
[INFO] [stderr]   Downloaded drone-ctypes v0.14.3
[INFO] [stderr]   Downloaded drone-macros-core v0.14.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7efd94608e08c225bddd41774e810a30f5142820f7e7746d68caccf7dbc3a7e8
[INFO] running `Command { std: "docker" "start" "-a" "7efd94608e08c225bddd41774e810a30f5142820f7e7746d68caccf7dbc3a7e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7efd94608e08c225bddd41774e810a30f5142820f7e7746d68caccf7dbc3a7e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7efd94608e08c225bddd41774e810a30f5142820f7e7746d68caccf7dbc3a7e8", kill_on_drop: false }`
[INFO] [stdout] 7efd94608e08c225bddd41774e810a30f5142820f7e7746d68caccf7dbc3a7e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 823f2b08d3117e806530b6ad007ec0fe5b0a26868dfa452a4a4b27e004f8c3e9
[INFO] running `Command { std: "docker" "start" "-a" "823f2b08d3117e806530b6ad007ec0fe5b0a26868dfa452a4a4b27e004f8c3e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]     Checking drone-ctypes v0.14.3
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling drone-macros-core v0.14.3
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling drone-config v0.14.0
[INFO] [stderr]    Compiling drone-core-macros v0.14.3
[INFO] [stderr]  Documenting drone-core v0.14.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![feature(const_fn)]
[INFO] [stdout]    |            ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![feature(generators)]
[INFO] [stdout]    |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | #![feature(untagged_unions)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `drone-core`
[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=2018 --crate-type lib --crate-name drone_core src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4edd914660bc00c1 -L dependency=/opt/rustwide/target/debug/deps --extern drone_core_macros=/opt/rustwide/target/debug/deps/libdrone_core_macros-98b7a0a87cbc2a68.so --extern drone_ctypes=/opt/rustwide/target/debug/deps/libdrone_ctypes-a3b2c6a800972137.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-482ca2a6fea33a39.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-f1e5efae7340f77a.rmeta --cap-lints=warn --crate-version 0.14.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "823f2b08d3117e806530b6ad007ec0fe5b0a26868dfa452a4a4b27e004f8c3e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823f2b08d3117e806530b6ad007ec0fe5b0a26868dfa452a4a4b27e004f8c3e9", kill_on_drop: false }`
[INFO] [stdout] 823f2b08d3117e806530b6ad007ec0fe5b0a26868dfa452a4a4b27e004f8c3e9
[INFO] documenting drone-core-0.14.3 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate drone-core 0.14.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate drone-core 0.14.3 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] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate drone-core 0.14.3
[INFO] finished tweaking crates.io crate drone-core 0.14.3
[INFO] tweaked toml for crates.io crate drone-core 0.14.3 written to /workspace/builds/worker-6-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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8dcc9e21d64a2e675855cfac3c4f5064b44ff1f691492eadda779714ce117d5c
[INFO] running `Command { std: "docker" "start" "-a" "8dcc9e21d64a2e675855cfac3c4f5064b44ff1f691492eadda779714ce117d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dcc9e21d64a2e675855cfac3c4f5064b44ff1f691492eadda779714ce117d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dcc9e21d64a2e675855cfac3c4f5064b44ff1f691492eadda779714ce117d5c", kill_on_drop: false }`
[INFO] [stdout] 8dcc9e21d64a2e675855cfac3c4f5064b44ff1f691492eadda779714ce117d5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f4c277296f177593e9e470368b96fce73accd55353800e074357748a2a879085
[INFO] running `Command { std: "docker" "start" "-a" "f4c277296f177593e9e470368b96fce73accd55353800e074357748a2a879085", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]     Checking drone-ctypes v0.14.3
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling drone-macros-core v0.14.3
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling drone-config v0.14.0
[INFO] [stderr]    Compiling drone-core-macros v0.14.3
[INFO] [stderr]  Documenting drone-core v0.14.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![feature(const_fn)]
[INFO] [stdout]    |            ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![feature(generators)]
[INFO] [stdout]    |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | #![feature(untagged_unions)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `drone-core`
[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=2018 --crate-type lib --crate-name drone_core src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4769db557ff34ecb -L dependency=/opt/rustwide/target/debug/deps --extern drone_core_macros=/opt/rustwide/target/debug/deps/libdrone_core_macros-9d0ac6b60b1ffcc2.so --extern drone_ctypes=/opt/rustwide/target/debug/deps/libdrone_ctypes-dbf5964d07f8338d.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-d91f161c2cbe3e21.rmeta --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-1e2cd9ab4b50c143.rmeta --cap-lints=warn --crate-version 0.14.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f4c277296f177593e9e470368b96fce73accd55353800e074357748a2a879085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c277296f177593e9e470368b96fce73accd55353800e074357748a2a879085", kill_on_drop: false }`
[INFO] [stdout] f4c277296f177593e9e470368b96fce73accd55353800e074357748a2a879085
