[INFO] fetching crate c4 0.1.0...
[INFO] documenting c4-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate c4 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate c4 0.1.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate c4 0.1.0
[INFO] finished tweaking crates.io crate c4 0.1.0
[INFO] tweaked toml for crates.io crate c4 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0a13ffa58c4eb592e0e28b34a6948c36f6ccfa79406621d5b4a002699d4cc6c
[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" "c0a13ffa58c4eb592e0e28b34a6948c36f6ccfa79406621d5b4a002699d4cc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0a13ffa58c4eb592e0e28b34a6948c36f6ccfa79406621d5b4a002699d4cc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a13ffa58c4eb592e0e28b34a6948c36f6ccfa79406621d5b4a002699d4cc6c", kill_on_drop: false }`
[INFO] [stdout] c0a13ffa58c4eb592e0e28b34a6948c36f6ccfa79406621d5b4a002699d4cc6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2497c1899f4d12744a0356f887e369d69f30bf0e79009de3abe2c5f6d688602b
[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" "2497c1899f4d12744a0356f887e369d69f30bf0e79009de3abe2c5f6d688602b", kill_on_drop: false }`
[INFO] [stderr]  Documenting c4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     'a' ...'z' => Matched(next, ()),
[INFO] [stdout]     |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:137:41
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:137:54
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:137:67
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                                                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:173:49
[INFO] [stdout]     |
[INFO] [stdout] 173 | ...                   'a' ...'z' | 'A' ...'Z' | '0'
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:173:62
[INFO] [stdout]     |
[INFO] [stdout] 173 | ...                   'a' ...'z' | 'A' ...'Z' | '0'
[INFO] [stdout]     |                                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:174:45
[INFO] [stdout]     |
[INFO] [stdout] 174 | ...                   ...'9' => Matched(next, ()),
[INFO] [stdout]     |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "2497c1899f4d12744a0356f887e369d69f30bf0e79009de3abe2c5f6d688602b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2497c1899f4d12744a0356f887e369d69f30bf0e79009de3abe2c5f6d688602b", kill_on_drop: false }`
[INFO] [stdout] 2497c1899f4d12744a0356f887e369d69f30bf0e79009de3abe2c5f6d688602b