[INFO] fetching crate cntrlr 0.1.0...
[INFO] documenting cntrlr-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate cntrlr 0.1.0 into /workspace/builds/worker-40/source
[INFO] validating manifest of crates.io crate cntrlr 0.1.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cntrlr 0.1.0
[INFO] finished tweaking crates.io crate cntrlr 0.1.0
[INFO] tweaked toml for crates.io crate cntrlr 0.1.0 written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate crates.io crate cntrlr 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `resolver` has been stabilized in the 1.51 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cntrlr-build v0.1.0
[INFO] [stderr]   Downloaded cntrlr-macros v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a8c05cb2617d8da6543209ca2cc303b82cb3f850c1497a8f219afd35ae2dd27
[INFO] running `Command { std: "docker" "start" "-a" "1a8c05cb2617d8da6543209ca2cc303b82cb3f850c1497a8f219afd35ae2dd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a8c05cb2617d8da6543209ca2cc303b82cb3f850c1497a8f219afd35ae2dd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8c05cb2617d8da6543209ca2cc303b82cb3f850c1497a8f219afd35ae2dd27", kill_on_drop: false }`
[INFO] [stdout] 1a8c05cb2617d8da6543209ca2cc303b82cb3f850c1497a8f219afd35ae2dd27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4b370d7b290a6d525dfb9ba63d62a28a7b12f2f60b1b0042b89ca2e69ec9f91
[INFO] running `Command { std: "docker" "start" "-a" "d4b370d7b290a6d525dfb9ba63d62a28a7b12f2f60b1b0042b89ca2e69ec9f91", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `resolver` has been stabilized in the 1.51 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions for more information about using this feature.
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling cntrlr-build v0.1.0
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]    Compiling cntrlr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: CNTRLR_BOARD not specified or target is incompatible with selected board
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling cntrlr-macros v0.1.0
[INFO] [stderr]  Documenting cntrlr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/task.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |                     asm!("wfi")
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / #![feature(
[INFO] [stdout] 34 | |     alloc_error_handler,
[INFO] [stdout] 35 | |     asm,
[INFO] [stdout] 36 | |     cfg_target_has_atomic,
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     type_alias_impl_trait
[INFO] [stdout] 42 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: CNTRLR_BOARD not specified or target is incompatible with selected board
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:43:34
[INFO] [stdout]    |
[INFO] [stdout] 43 | #![cfg_attr(feature = "doc-cfg", feature(doc_cfg))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `cntrlr`
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cntrlr src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="doc-cfg"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=57912e80438724cc -L dependency=/opt/rustwide/target/debug/deps --extern bit_field=/opt/rustwide/target/debug/deps/libbit_field-c5dba2b92c455300.rmeta --extern cntrlr_macros=/opt/rustwide/target/debug/deps/libcntrlr_macros-5f8a4f8a842307b0.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d4b370d7b290a6d525dfb9ba63d62a28a7b12f2f60b1b0042b89ca2e69ec9f91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b370d7b290a6d525dfb9ba63d62a28a7b12f2f60b1b0042b89ca2e69ec9f91", kill_on_drop: false }`
[INFO] [stdout] d4b370d7b290a6d525dfb9ba63d62a28a7b12f2f60b1b0042b89ca2e69ec9f91