[INFO] fetching crate bootinfo 0.2.0...
[INFO] documenting bootinfo-0.2.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate bootinfo 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate bootinfo 0.2.0 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 bootinfo 0.2.0
[INFO] finished tweaking crates.io crate bootinfo 0.2.0
[INFO] tweaked toml for crates.io crate bootinfo 0.2.0 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] 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a652a10f63200536c2d76332029bd805607d38b3912e6c571d85fa4bf3e5b4b
[INFO] running `Command { std: "docker" "start" "-a" "4a652a10f63200536c2d76332029bd805607d38b3912e6c571d85fa4bf3e5b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a652a10f63200536c2d76332029bd805607d38b3912e6c571d85fa4bf3e5b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a652a10f63200536c2d76332029bd805607d38b3912e6c571d85fa4bf3e5b4b", kill_on_drop: false }`
[INFO] [stdout] 4a652a10f63200536c2d76332029bd805607d38b3912e6c571d85fa4bf3e5b4b
[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] edc97aa33e400e765e5e823bbbcf357b3a153ec456c9d688462d048ece1f57b1
[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" "edc97aa33e400e765e5e823bbbcf357b3a153ec456c9d688462d048ece1f57b1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling syntex_fmt_macros v0.5.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking miniz_oxide v0.4.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling derive-error-chain v0.11.2
[INFO] [stderr]  Documenting bootinfo v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/parsers/multiboot2.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     (typ == TAG_ENDING && size == 8)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/parsers/multiboot2.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 ((read_more + 8) % 8)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.38s
[INFO] running `Command { std: "docker" "inspect" "edc97aa33e400e765e5e823bbbcf357b3a153ec456c9d688462d048ece1f57b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edc97aa33e400e765e5e823bbbcf357b3a153ec456c9d688462d048ece1f57b1", kill_on_drop: false }`
[INFO] [stdout] edc97aa33e400e765e5e823bbbcf357b3a153ec456c9d688462d048ece1f57b1