[INFO] fetching crate docket 0.4.1...
[INFO] documenting docket-0.4.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate docket 0.4.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate docket 0.4.1 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 docket 0.4.1
[INFO] finished tweaking crates.io crate docket 0.4.1
[INFO] tweaked toml for crates.io crate docket 0.4.1 written to /workspace/builds/worker-0/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 73880ff4633a7da52eb7d5255b6f4390a56cedd1f55793344a37d94cf03b5342
[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" "73880ff4633a7da52eb7d5255b6f4390a56cedd1f55793344a37d94cf03b5342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73880ff4633a7da52eb7d5255b6f4390a56cedd1f55793344a37d94cf03b5342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73880ff4633a7da52eb7d5255b6f4390a56cedd1f55793344a37d94cf03b5342", kill_on_drop: false }`
[INFO] [stdout] 73880ff4633a7da52eb7d5255b6f4390a56cedd1f55793344a37d94cf03b5342
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] d2bb5077677ac5aa5026da9e2b6a7cc2b460e609765b7c8c5f1b37203c971bc6
[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" "d2bb5077677ac5aa5026da9e2b6a7cc2b460e609765b7c8c5f1b37203c971bc6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]  Documenting docket v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/main.rs:64:14
[INFO] [stdout]    |
[INFO] [stdout] 64 |         .map({ |p| PathBuf::from(p) })
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.24s
[INFO] running `Command { std: "docker" "inspect" "d2bb5077677ac5aa5026da9e2b6a7cc2b460e609765b7c8c5f1b37203c971bc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2bb5077677ac5aa5026da9e2b6a7cc2b460e609765b7c8c5f1b37203c971bc6", kill_on_drop: false }`
[INFO] [stdout] d2bb5077677ac5aa5026da9e2b6a7cc2b460e609765b7c8c5f1b37203c971bc6