[INFO] fetching crate utf8-bufread 0.1.5...
[INFO] checking utf8-bufread-0.1.5 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate utf8-bufread 0.1.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate utf8-bufread 0.1.5 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf8-bufread 0.1.5
[INFO] finished tweaking crates.io crate utf8-bufread 0.1.5
[INFO] tweaked toml for crates.io crate utf8-bufread 0.1.5 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efd79670ba0f5687ff1ecc0fa5154458b973ad1ac29705188f8bc41cd7820d0b
[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" "efd79670ba0f5687ff1ecc0fa5154458b973ad1ac29705188f8bc41cd7820d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efd79670ba0f5687ff1ecc0fa5154458b973ad1ac29705188f8bc41cd7820d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd79670ba0f5687ff1ecc0fa5154458b973ad1ac29705188f8bc41cd7820d0b", kill_on_drop: false }`
[INFO] [stdout] efd79670ba0f5687ff1ecc0fa5154458b973ad1ac29705188f8bc41cd7820d0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4644b595a7f6812d7e767e5537ea46761924bae758e106175691193567a66056
[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" "4644b595a7f6812d7e767e5537ea46761924bae758e106175691193567a66056", kill_on_drop: false }`
[INFO] [stderr]     Checking utf8-bufread v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `missing_crate_level_docs` has been removed: use `rustdoc::missing_crate_level_docs` instead
[INFO] [stdout]   --> src/lib.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | #[deny(missing_crate_level_docs, missing_docs, missing_doc_code_examples)]
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `missing_doc_code_examples` has been removed: use `rustdoc::missing_doc_code_examples` instead
[INFO] [stdout]   --> src/lib.rs:43:48
[INFO] [stdout]    |
[INFO] [stdout] 43 | #[deny(missing_crate_level_docs, missing_docs, missing_doc_code_examples)]
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `missing_crate_level_docs` has been removed: use `rustdoc::missing_crate_level_docs` instead
[INFO] [stdout]   --> src/lib.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | #[deny(missing_crate_level_docs, missing_docs, missing_doc_code_examples)]
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `missing_doc_code_examples` has been removed: use `rustdoc::missing_doc_code_examples` instead
[INFO] [stdout]   --> src/lib.rs:43:48
[INFO] [stdout]    |
[INFO] [stdout] 43 | #[deny(missing_crate_level_docs, missing_docs, missing_doc_code_examples)]
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "4644b595a7f6812d7e767e5537ea46761924bae758e106175691193567a66056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4644b595a7f6812d7e767e5537ea46761924bae758e106175691193567a66056", kill_on_drop: false }`
[INFO] [stdout] 4644b595a7f6812d7e767e5537ea46761924bae758e106175691193567a66056