[INFO] fetching crate display-as 0.5.0...
[INFO] documenting display-as-0.5.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate display-as 0.5.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate display-as 0.5.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate display-as 0.5.0
[INFO] finished tweaking crates.io crate display-as 0.5.0
[INFO] tweaked toml for crates.io crate display-as 0.5.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc8287c64ed349b74e33531b1af58e965d8291219720be087b613ac304c69de2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc8287c64ed349b74e33531b1af58e965d8291219720be087b613ac304c69de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc8287c64ed349b74e33531b1af58e965d8291219720be087b613ac304c69de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8287c64ed349b74e33531b1af58e965d8291219720be087b613ac304c69de2", kill_on_drop: false }`
[INFO] [stdout] fc8287c64ed349b74e33531b1af58e965d8291219720be087b613ac304c69de2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65ddf6fb1c5dd38880bbd7f7116064b0cf6b22a68ad049b524356ab4fef42d55
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "65ddf6fb1c5dd38880bbd7f7116064b0cf6b22a68ad049b524356ab4fef42d55", kill_on_drop: false }`
[INFO] [stderr]    Compiling display-as-proc-macro v0.4.3
[INFO] [stderr]  Documenting display-as v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/lib.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 173 |   //! ```ignore
[INFO] [stdout]     |  _____^
[INFO] [stdout] 174 | | #![cfg_attr(feature = "docinclude", doc(include = "base.html"))]
[INFO] [stdout] 175 | | //! ```
[INFO] [stdout]     | |_______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/lib.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |   //! ```ignore
[INFO] [stdout]     |  _____^
[INFO] [stdout] 179 | | #![cfg_attr(feature = "docinclude", doc(include = "student.html"))]
[INFO] [stdout] 180 | | //!```
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/lib.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 |   //! ```ignore
[INFO] [stdout]     |  _____^
[INFO] [stdout] 184 | | #![cfg_attr(feature = "docinclude", doc(include = "class.html"))]
[INFO] [stdout] 185 | | //! ```
[INFO] [stdout]     | |_______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "65ddf6fb1c5dd38880bbd7f7116064b0cf6b22a68ad049b524356ab4fef42d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ddf6fb1c5dd38880bbd7f7116064b0cf6b22a68ad049b524356ab4fef42d55", kill_on_drop: false }`
[INFO] [stdout] 65ddf6fb1c5dd38880bbd7f7116064b0cf6b22a68ad049b524356ab4fef42d55