[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] checking kentfredric/grease against master#7c4ac0603e9ee5295bc802c90575391288a69a8a for pr-124728
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fgrease" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kentfredric/grease on toolchain 7c4ac0603e9ee5295bc802c90575391288a69a8a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7c4ac0603e9ee5295bc802c90575391288a69a8a" "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-4-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7c4ac0603e9ee5295bc802c90575391288a69a8a" "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
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking kentfredric/grease against try#98ebbae35138252af77610c20ea5a5e8bf68d639 for pr-124728
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkentfredric%2Fgrease" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kentfredric/grease on toolchain 98ebbae35138252af77610c20ea5a5e8bf68d639
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+98ebbae35138252af77610c20ea5a5e8bf68d639" "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-4-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+98ebbae35138252af77610c20ea5a5e8bf68d639" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+98ebbae35138252af77610c20ea5a5e8bf68d639" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ff23671a60743df197a83e439a7000fbd32fc3239c83bfb547ebaf8055354b8
[INFO] running `Command { std: "docker" "start" "-a" "0ff23671a60743df197a83e439a7000fbd32fc3239c83bfb547ebaf8055354b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ff23671a60743df197a83e439a7000fbd32fc3239c83bfb547ebaf8055354b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff23671a60743df197a83e439a7000fbd32fc3239c83bfb547ebaf8055354b8", kill_on_drop: false }`
[INFO] [stdout] 0ff23671a60743df197a83e439a7000fbd32fc3239c83bfb547ebaf8055354b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+98ebbae35138252af77610c20ea5a5e8bf68d639" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f9faf94e8943196cfcc7dfd9c9760bfda3561cba66c4440ca9790ba09fef1ba
[INFO] running `Command { std: "docker" "start" "-a" "0f9faf94e8943196cfcc7dfd9c9760bfda3561cba66c4440ca9790ba09fef1ba", kill_on_drop: false }`
[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]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking 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]     Checking failure v0.1.5
[INFO] [stderr]     Checking 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[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: 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: `#[deny(invalid_doc_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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: `#[deny(invalid_doc_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: 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] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grease` (lib) due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `grease` (lib test) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "0f9faf94e8943196cfcc7dfd9c9760bfda3561cba66c4440ca9790ba09fef1ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f9faf94e8943196cfcc7dfd9c9760bfda3561cba66c4440ca9790ba09fef1ba", kill_on_drop: false }`
[INFO] [stdout] 0f9faf94e8943196cfcc7dfd9c9760bfda3561cba66c4440ca9790ba09fef1ba