[INFO] fetching crate config-diag 1.0.0...
[INFO] checking config-diag-1.0.0 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[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 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a7df4d54e708649dc071ca815786e5d6817207cd06a3d0a0a37d912b4f59f448
[INFO] running `Command { std: "docker" "start" "-a" "a7df4d54e708649dc071ca815786e5d6817207cd06a3d0a0a37d912b4f59f448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7df4d54e708649dc071ca815786e5d6817207cd06a3d0a0a37d912b4f59f448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7df4d54e708649dc071ca815786e5d6817207cd06a3d0a0a37d912b4f59f448", kill_on_drop: false }`
[INFO] [stdout] a7df4d54e708649dc071ca815786e5d6817207cd06a3d0a0a37d912b4f59f448
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a120a33ca2d9b769f97ba47aed9c5fcb8ec2fa5489fce7ebc3dbb8e1a24401e3
[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" "a120a33ca2d9b769f97ba47aed9c5fcb8ec2fa5489fce7ebc3dbb8e1a24401e3", 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: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "a120a33ca2d9b769f97ba47aed9c5fcb8ec2fa5489fce7ebc3dbb8e1a24401e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a120a33ca2d9b769f97ba47aed9c5fcb8ec2fa5489fce7ebc3dbb8e1a24401e3", kill_on_drop: false }`
[INFO] [stdout] a120a33ca2d9b769f97ba47aed9c5fcb8ec2fa5489fce7ebc3dbb8e1a24401e3