[INFO] fetching crate sp-ipld 0.2.0...
[INFO] documenting sp-ipld-0.2.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate sp-ipld 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate sp-ipld 0.2.0 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 sp-ipld 0.2.0
[INFO] finished tweaking crates.io crate sp-ipld 0.2.0
[INFO] tweaked toml for crates.io crate sp-ipld 0.2.0 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 sp-multihash-derive v0.2.0
[INFO] [stderr]   Downloaded blake2s_simd v0.5.11
[INFO] [stderr]   Downloaded bytecursor v0.1.2
[INFO] [stderr]   Downloaded sp-multihash v0.2.0
[INFO] [stderr]   Downloaded sp-cid v0.2.0
[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] fab0040bc2f8754ff80818798aeba8e617060838f3472f682b85579af4b265d1
[INFO] running `Command { std: "docker" "start" "-a" "fab0040bc2f8754ff80818798aeba8e617060838f3472f682b85579af4b265d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fab0040bc2f8754ff80818798aeba8e617060838f3472f682b85579af4b265d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab0040bc2f8754ff80818798aeba8e617060838f3472f682b85579af4b265d1", kill_on_drop: false }`
[INFO] [stdout] fab0040bc2f8754ff80818798aeba8e617060838f3472f682b85579af4b265d1
[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] aa22b509ab7e361eb03aac581cf5fe3281b9565863ab64a043d178e5a3c57783
[INFO] running `Command { std: "docker" "start" "-a" "aa22b509ab7e361eb03aac581cf5fe3281b9565863ab64a043d178e5a3c57783", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking sp-std v3.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]     Checking bytecursor v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking blake2s_simd v0.5.11
[INFO] [stderr]     Checking unsigned-varint v0.7.2
[INFO] [stderr]     Checking base-x v0.2.11
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]    Compiling indexmap v2.2.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.12
[INFO] [stderr]    Compiling sp-multihash-derive v0.2.0
[INFO] [stderr]     Checking data-encoding-macro v0.1.14
[INFO] [stderr]     Checking multibase v0.9.1
[INFO] [stderr]     Checking sp-multihash v0.2.0
[INFO] [stderr]     Checking sp-cid v0.2.0
[INFO] [stderr]  Documenting sp-ipld v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[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 `sp-ipld`
[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=2018 --crate-type lib --crate-name sp_ipld src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="base64"' --cfg 'feature="byteorder"' --cfg 'feature="dag-cbor"' --cfg 'feature="dag-json"' --cfg 'feature="default"' --cfg 'feature="multibase"' --cfg 'feature="serde"' --cfg 'feature="sp-multihash"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7a66153c0383b9d9 -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-97a338a101df3907.rmeta --extern bytecursor=/opt/rustwide/target/debug/deps/libbytecursor-9093be91303ddff1.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-18cc870496569bfa.rmeta --extern multibase=/opt/rustwide/target/debug/deps/libmultibase-799bd14628498e8f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e02fc371a82a9c8a.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-b0a1f2f563d6dd71.rmeta --extern sp_cid=/opt/rustwide/target/debug/deps/libsp_cid-8d334a0cd6c450d4.rmeta --extern sp_multihash=/opt/rustwide/target/debug/deps/libsp_multihash-c3f0a67e6ed1a225.rmeta --extern unsigned_varint=/opt/rustwide/target/debug/deps/libunsigned_varint-a37e7ae3a99c4fda.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "aa22b509ab7e361eb03aac581cf5fe3281b9565863ab64a043d178e5a3c57783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa22b509ab7e361eb03aac581cf5fe3281b9565863ab64a043d178e5a3c57783", kill_on_drop: false }`
[INFO] [stdout] aa22b509ab7e361eb03aac581cf5fe3281b9565863ab64a043d178e5a3c57783
[INFO] documenting sp-ipld-0.2.0 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate sp-ipld 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate sp-ipld 0.2.0 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 sp-ipld 0.2.0
[INFO] finished tweaking crates.io crate sp-ipld 0.2.0
[INFO] tweaked toml for crates.io crate sp-ipld 0.2.0 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] 8941aa3ce9de57947accd2435b2cd1d1af7c5f2cedc4ff20f3f5a83c781edad5
[INFO] running `Command { std: "docker" "start" "-a" "8941aa3ce9de57947accd2435b2cd1d1af7c5f2cedc4ff20f3f5a83c781edad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8941aa3ce9de57947accd2435b2cd1d1af7c5f2cedc4ff20f3f5a83c781edad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8941aa3ce9de57947accd2435b2cd1d1af7c5f2cedc4ff20f3f5a83c781edad5", kill_on_drop: false }`
[INFO] [stdout] 8941aa3ce9de57947accd2435b2cd1d1af7c5f2cedc4ff20f3f5a83c781edad5
[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] 09e2169994cebc0bcdf4422a7488e58f97d00796257f61d82b2c339f7abf0586
[INFO] running `Command { std: "docker" "start" "-a" "09e2169994cebc0bcdf4422a7488e58f97d00796257f61d82b2c339f7abf0586", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]     Checking sp-std v3.0.0
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]     Checking bytecursor v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking base-x v0.2.11
[INFO] [stderr]     Checking unsigned-varint v0.7.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking blake2s_simd v0.5.11
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]    Compiling indexmap v2.2.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.12
[INFO] [stderr]    Compiling sp-multihash-derive v0.2.0
[INFO] [stderr]     Checking data-encoding-macro v0.1.14
[INFO] [stderr]     Checking multibase v0.9.1
[INFO] [stderr]     Checking sp-multihash v0.2.0
[INFO] [stderr]     Checking sp-cid v0.2.0
[INFO] [stderr]  Documenting sp-ipld v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[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 `sp-ipld`
[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=2018 --crate-type lib --crate-name sp_ipld src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="base64"' --cfg 'feature="byteorder"' --cfg 'feature="dag-cbor"' --cfg 'feature="dag-json"' --cfg 'feature="default"' --cfg 'feature="multibase"' --cfg 'feature="serde"' --cfg 'feature="sp-multihash"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=080afdc0f37b304b -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-341c84b1c24e0767.rmeta --extern bytecursor=/opt/rustwide/target/debug/deps/libbytecursor-55e49731a7fb876b.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-eb090e75a9fd7129.rmeta --extern multibase=/opt/rustwide/target/debug/deps/libmultibase-e925712fcc5d30bd.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d025bb9e90c6d50c.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-75033821b635b461.rmeta --extern sp_cid=/opt/rustwide/target/debug/deps/libsp_cid-2bceb4f4e1ce899d.rmeta --extern sp_multihash=/opt/rustwide/target/debug/deps/libsp_multihash-b2d90f8753c4a9c1.rmeta --extern unsigned_varint=/opt/rustwide/target/debug/deps/libunsigned_varint-6c129f0cdbcf5e44.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "09e2169994cebc0bcdf4422a7488e58f97d00796257f61d82b2c339f7abf0586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09e2169994cebc0bcdf4422a7488e58f97d00796257f61d82b2c339f7abf0586", kill_on_drop: false }`
[INFO] [stdout] 09e2169994cebc0bcdf4422a7488e58f97d00796257f61d82b2c339f7abf0586
