[INFO] fetching crate config-diag 1.0.0...
[INFO] checking config-diag-1.0.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate config-diag 1.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate config-diag 1.0.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate config-diag 1.0.0
[INFO] finished tweaking crates.io crate config-diag 1.0.0
[INFO] tweaked toml for crates.io crate config-diag 1.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7f327d8a9c1291550143c5446fbc078cbfdc4aee0a5014b9fa84b67f3cb77ce
[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" "e7f327d8a9c1291550143c5446fbc078cbfdc4aee0a5014b9fa84b67f3cb77ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7f327d8a9c1291550143c5446fbc078cbfdc4aee0a5014b9fa84b67f3cb77ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f327d8a9c1291550143c5446fbc078cbfdc4aee0a5014b9fa84b67f3cb77ce", kill_on_drop: false }`
[INFO] [stdout] e7f327d8a9c1291550143c5446fbc078cbfdc4aee0a5014b9fa84b67f3cb77ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33dd31811551f185d2bd648e20d4efbfa3440ecacc22b00b50deb0a73465f757
[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" "33dd31811551f185d2bd648e20d4efbfa3440ecacc22b00b50deb0a73465f757", kill_on_drop: false }`
[INFO] [stderr]     Checking config-diag v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this attribute can only be applied at the crate level
[INFO] [stdout]   --> src/lib.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[doc(html_root_url = "https://docs.rs/config-diag/1.0.0")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level for more information
[INFO] [stdout] help: to apply to the crate, use an inner attribute
[INFO] [stdout]    |
[INFO] [stdout] 37 | #![doc(html_root_url = "https://docs.rs/config-diag/1.0.0")]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this attribute can only be applied at the crate level
[INFO] [stdout]   --> src/lib.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[doc(html_root_url = "https://docs.rs/config-diag/1.0.0")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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]    = note: read https://doc.rust-lang.org/nightly/rustdoc/the-doc-attribute.html#at-the-crate-level for more information
[INFO] [stdout] help: to apply to the crate, use an inner attribute
[INFO] [stdout]    |
[INFO] [stdout] 37 | #![doc(html_root_url = "https://docs.rs/config-diag/1.0.0")]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "33dd31811551f185d2bd648e20d4efbfa3440ecacc22b00b50deb0a73465f757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33dd31811551f185d2bd648e20d4efbfa3440ecacc22b00b50deb0a73465f757", kill_on_drop: false }`
[INFO] [stdout] 33dd31811551f185d2bd648e20d4efbfa3440ecacc22b00b50deb0a73465f757