[INFO] fetching crate blake2_bin 0.5.10...
[INFO] documenting blake2_bin-0.5.10 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate blake2_bin 0.5.10 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate blake2_bin 0.5.10 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blake2_bin 0.5.10
[INFO] finished tweaking crates.io crate blake2_bin 0.5.10
[INFO] tweaked toml for crates.io crate blake2_bin 0.5.10 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate blake2_bin 0.5.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] 9ec1ee353b6a9bcd6a756749ef6ddff97727d798d8e1ba9bc0a808cc9300a39d
[INFO] running `Command { std: "docker" "start" "-a" "9ec1ee353b6a9bcd6a756749ef6ddff97727d798d8e1ba9bc0a808cc9300a39d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ec1ee353b6a9bcd6a756749ef6ddff97727d798d8e1ba9bc0a808cc9300a39d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ec1ee353b6a9bcd6a756749ef6ddff97727d798d8e1ba9bc0a808cc9300a39d", kill_on_drop: false }`
[INFO] [stdout] 9ec1ee353b6a9bcd6a756749ef6ddff97727d798d8e1ba9bc0a808cc9300a39d
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 737e6151c7705224994b7815af96bb145f31177aa9bb9fd982500c7ee0a90f60
[INFO] running `Command { std: "docker" "start" "-a" "737e6151c7705224994b7815af96bb145f31177aa9bb9fd982500c7ee0a90f60", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]     Checking structopt v0.3.7
[INFO] [stderr]  Documenting blake2_bin v0.5.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.30s
[INFO] running `Command { std: "docker" "inspect" "737e6151c7705224994b7815af96bb145f31177aa9bb9fd982500c7ee0a90f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737e6151c7705224994b7815af96bb145f31177aa9bb9fd982500c7ee0a90f60", kill_on_drop: false }`
[INFO] [stdout] 737e6151c7705224994b7815af96bb145f31177aa9bb9fd982500c7ee0a90f60