[INFO] fetching crate bl602-macros 0.0.2...
[INFO] documenting bl602-macros-0.0.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate bl602-macros 0.0.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bl602-macros 0.0.2 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bl602-macros 0.0.2
[INFO] finished tweaking crates.io crate bl602-macros 0.0.2
[INFO] tweaked toml for crates.io crate bl602-macros 0.0.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dc73e8ee9abff3123ea68b92dbcf721233608617f8ee8512aa21de4b675bc3b
[INFO] running `Command { std: "docker" "start" "-a" "0dc73e8ee9abff3123ea68b92dbcf721233608617f8ee8512aa21de4b675bc3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dc73e8ee9abff3123ea68b92dbcf721233608617f8ee8512aa21de4b675bc3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc73e8ee9abff3123ea68b92dbcf721233608617f8ee8512aa21de4b675bc3b", kill_on_drop: false }`
[INFO] [stdout] 0dc73e8ee9abff3123ea68b92dbcf721233608617f8ee8512aa21de4b675bc3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7992c3016394c267a8b7b7ad533f62f31cfc8e234f357f8a13731ac17fbaea5b
[INFO] running `Command { std: "docker" "start" "-a" "7992c3016394c267a8b7b7ad533f62f31cfc8e234f357f8a13731ac17fbaea5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking cstr_core v0.2.5
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting bl602-macros v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | #![feature(proc_macro_span)]  //  Allow use of spans in Procedural Macros
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `bl602-macros`
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name bl602_macros src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="mynewt_os"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f0afcc80d5ea976b -L dependency=/opt/rustwide/target/debug/deps --extern cstr_core=/opt/rustwide/target/debug/deps/libcstr_core-001181323a4fb418.rmeta --extern cty=/opt/rustwide/target/debug/deps/libcty-0f356f7a6983261f.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-137b3aa150f311d0.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-412f8ac4638e7e9b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c3252a44ced4e42f.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-133015b43c1c35be.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-74a40f61dc909e58.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.0.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "7992c3016394c267a8b7b7ad533f62f31cfc8e234f357f8a13731ac17fbaea5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7992c3016394c267a8b7b7ad533f62f31cfc8e234f357f8a13731ac17fbaea5b", kill_on_drop: false }`
[INFO] [stdout] 7992c3016394c267a8b7b7ad533f62f31cfc8e234f357f8a13731ac17fbaea5b