[INFO] fetching crate cntrlr 0.1.0...
[INFO] documenting cntrlr-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate cntrlr 0.1.0 into /workspace/builds/worker-116/source
[INFO] validating manifest of crates.io crate cntrlr 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-116/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" "+1.54.0" "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 bit_field v0.10.1
[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-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 295b0cc5f3a48062524957727abf72650345c98d18f6c072d16bd9652035983a
[INFO] running `Command { std: "docker" "start" "-a" "295b0cc5f3a48062524957727abf72650345c98d18f6c072d16bd9652035983a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "295b0cc5f3a48062524957727abf72650345c98d18f6c072d16bd9652035983a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "295b0cc5f3a48062524957727abf72650345c98d18f6c072d16bd9652035983a", kill_on_drop: false }`
[INFO] [stdout] 295b0cc5f3a48062524957727abf72650345c98d18f6c072d16bd9652035983a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d882e33dcbcdb2a8a3edc3d529c56f639907e9c61b10c3240965ba55af50c495
[INFO] running `Command { std: "docker" "start" "-a" "d882e33dcbcdb2a8a3edc3d529c56f639907e9c61b10c3240965ba55af50c495", 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]    Compiling proc-macro2 v1.0.24
[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] [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] [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] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]   --> src/hw/board/red_v/io.rs:53:23
[INFO] [stdout]    |
[INFO] [stdout] 53 |     type Future<'a> = impl Future<Output = Result<usize, Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]   --> src/hw/board/red_v/io.rs:89:23
[INFO] [stdout]    |
[INFO] [stdout] 89 |     type Future<'a> = impl Future<Output = Result<usize, Self::Error>>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]   --> src/hw/board/red_v/io.rs:90:28
[INFO] [stdout]    |
[INFO] [stdout] 90 |     type FlushFuture<'a> = impl Future<Output = Result<(), Self::Error>>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]   --> src/hw/board/teensy_common/io.rs:51:23
[INFO] [stdout]    |
[INFO] [stdout] 51 |     type Future<'a> = impl Future<Output = Result<usize, Self::Error>> + 'a;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]   --> src/hw/board/teensy_common/io.rs:88:23
[INFO] [stdout]    |
[INFO] [stdout] 88 |     type Future<'a> = impl Future<Output = Result<usize, Self::Error>> + 'a;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]   --> src/hw/board/teensy_common/io.rs:89:28
[INFO] [stdout]    |
[INFO] [stdout] 89 |     type FlushFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]   --> src/io.rs:82:28
[INFO] [stdout]    |
[INFO] [stdout] 82 |     type ExactFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]   --> src/io.rs:83:27
[INFO] [stdout]    |
[INFO] [stdout] 83 |     type LineFuture<'a> = impl Future<Output = Result<(), LineError<Self::Error>>> + 'a;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]    --> src/io.rs:134:26
[INFO] [stdout]     |
[INFO] [stdout] 134 |     type AllFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a;
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable
[INFO] [stdout]    --> src/io.rs:135:26
[INFO] [stdout]     |
[INFO] [stdout] 135 |     type FmtFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a;
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: CNTRLR_BOARD not specified or target is incompatible with selected board
[INFO] [stderr] 
[INFO] [stderr] error: could not document `cntrlr`
[INFO] [stderr] 
[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 --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bit_field=/opt/rustwide/target/debug/deps/libbit_field-b86d457fa06b6ee7.rmeta --extern cntrlr_macros=/opt/rustwide/target/debug/deps/libcntrlr_macros-ea1ff9532898aeed.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d882e33dcbcdb2a8a3edc3d529c56f639907e9c61b10c3240965ba55af50c495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d882e33dcbcdb2a8a3edc3d529c56f639907e9c61b10c3240965ba55af50c495", kill_on_drop: false }`
[INFO] [stdout] d882e33dcbcdb2a8a3edc3d529c56f639907e9c61b10c3240965ba55af50c495
