[INFO] cloning repository https://github.com/kentfredric/grease
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kentfredric/grease" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fgrease", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fgrease'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56f6e1b303719b08166b18b40d7cfea4fe2e5c4f
[INFO] testing kentfredric/grease against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fgrease" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kentfredric/grease 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 git repo https://github.com/kentfredric/grease
[INFO] finished tweaking git repo https://github.com/kentfredric/grease
[INFO] tweaked toml for git repo https://github.com/kentfredric/grease written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/kentfredric/grease 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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] 52314e7fd922d0d5808a432073b2b957a31e168ba912d4a551f7409084729a99
[INFO] running `Command { std: "docker" "start" "-a" "52314e7fd922d0d5808a432073b2b957a31e168ba912d4a551f7409084729a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52314e7fd922d0d5808a432073b2b957a31e168ba912d4a551f7409084729a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52314e7fd922d0d5808a432073b2b957a31e168ba912d4a551f7409084729a99", kill_on_drop: false }`
[INFO] [stdout] 52314e7fd922d0d5808a432073b2b957a31e168ba912d4a551f7409084729a99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fed48781617b3594da2391c13d6bcf4b7c839ab6d84822e3c82be0f1cb9d134b
[INFO] running `Command { std: "docker" "start" "-a" "fed48781617b3594da2391c13d6bcf4b7c839ab6d84822e3c82be0f1cb9d134b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling libc v0.2.57
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling backtrace v0.3.26
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling grease v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(feature = "external_doc", feature(external_doc))]
[INFO] [stdout]   |                                               ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:39
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(feature = "external_doc", feature(external_doc))]
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `include`
[INFO] [stdout]  --> src/repository.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     doc(include = "repository/repository.md")
[INFO] [stdout]   |     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: use `doc = include_str!` instead: `#![doc = include_str!("repository/repository.md")]`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `include`
[INFO] [stdout]   --> src/repository.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     doc(include = "repository/struct.Repository.md")
[INFO] [stdout]    |     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: use `doc = include_str!` instead: `#[doc = include_str!("repository/struct.Repository.md")]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `include`
[INFO] [stdout]   --> src/repository/category.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     doc(include = "repository/struct.Category.md")
[INFO] [stdout]    |     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: use `doc = include_str!` instead: `#[doc = include_str!("repository/struct.Category.md")]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `include`
[INFO] [stdout]   --> src/repository/category.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     doc(include = "repository/struct.CategoryFileIterator.md")
[INFO] [stdout]    |     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: use `doc = include_str!` instead: `#[doc = include_str!("repository/struct.CategoryFileIterator.md")]`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `include`
[INFO] [stdout]    --> src/repository/category.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 |     doc(include = "repository/struct.CategoryDirsIterator.md")
[INFO] [stdout]     |     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: use `doc = include_str!` instead: `#[doc = include_str!("repository/struct.CategoryDirsIterator.md")]`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `include`
[INFO] [stdout]  --> src/repository/ebuild.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     doc(include = "repository/struct.Ebuild.md")
[INFO] [stdout]   |     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: use `doc = include_str!` instead: `#[doc = include_str!("repository/struct.Ebuild.md")]`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `include`
[INFO] [stdout]  --> src/repository/package.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     doc(include = "repository/struct.Package.md")
[INFO] [stdout]   |     ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: use `doc = include_str!` instead: `#[doc = include_str!("repository/struct.Package.md")]`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grease`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "fed48781617b3594da2391c13d6bcf4b7c839ab6d84822e3c82be0f1cb9d134b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fed48781617b3594da2391c13d6bcf4b7c839ab6d84822e3c82be0f1cb9d134b", kill_on_drop: false }`
[INFO] [stdout] fed48781617b3594da2391c13d6bcf4b7c839ab6d84822e3c82be0f1cb9d134b
