[INFO] fetching crate nano-vanity 0.4.10...
[INFO] documenting nano-vanity-0.4.10 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate nano-vanity 0.4.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nano-vanity 0.4.10 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 nano-vanity 0.4.10
[INFO] finished tweaking crates.io crate nano-vanity 0.4.10
[INFO] tweaked toml for crates.io crate nano-vanity 0.4.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate nano-vanity 0.4.10 already has a lockfile, it will not be regenerated
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded digest v0.8.0
[INFO] [stderr]   Downloaded num-integer v0.1.36
[INFO] [stderr]   Downloaded synstructure v0.6.1
[INFO] [stderr]   Downloaded cfg-if v0.1.2
[INFO] [stderr]   Downloaded unicode-width v0.1.4
[INFO] [stderr]   Downloaded textwrap v0.9.0
[INFO] [stderr]   Downloaded vec_map v0.8.0
[INFO] [stderr]   Downloaded blake2 v0.7.0
[INFO] [stderr]   Downloaded atty v0.2.6
[INFO] [stderr]   Downloaded generic-array v0.12.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.5
[INFO] [stderr]   Downloaded num-iter v0.1.35
[INFO] [stderr]   Downloaded digest v0.7.2
[INFO] [stderr]   Downloaded crossbeam v0.3.2
[INFO] [stderr]   Downloaded clap v2.30.0
[INFO] [stderr]   Downloaded num-traits v0.2.0
[INFO] [stderr]   Downloaded ocl v0.19.3
[INFO] [stderr]   Downloaded qutex v0.2.0
[INFO] [stderr]   Downloaded ocl-core v0.11.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.37
[INFO] [stderr]   Downloaded rand_chacha v0.2.0
[INFO] [stderr]   Downloaded failure_derive v0.1.1
[INFO] [stderr]   Downloaded num_cpus v1.8.0
[INFO] [stderr]   Downloaded rand_core v0.3.0
[INFO] [stderr]   Downloaded futures v0.1.18
[INFO] [stderr]   Downloaded subtle v2.0.0
[INFO] [stderr]   Downloaded curve25519-dalek v1.2.1
[INFO] [stderr]   Downloaded nodrop v0.1.12
[INFO] [stderr]   Downloaded num-bigint v0.1.43
[INFO] [stderr]   Downloaded hex v0.3.1
[INFO] [stderr]   Downloaded num-complex v0.1.42
[INFO] [stderr]   Downloaded cc v1.0.4
[INFO] [stderr]   Downloaded backtrace v0.3.5
[INFO] [stderr]   Downloaded backtrace-sys v0.1.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 80b8ed23c156c3633642924ff922387177c06fb96e43b8e3e48cdbe2d77dc0dc
[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" "80b8ed23c156c3633642924ff922387177c06fb96e43b8e3e48cdbe2d77dc0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80b8ed23c156c3633642924ff922387177c06fb96e43b8e3e48cdbe2d77dc0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80b8ed23c156c3633642924ff922387177c06fb96e43b8e3e48cdbe2d77dc0dc", kill_on_drop: false }`
[INFO] [stdout] 80b8ed23c156c3633642924ff922387177c06fb96e43b8e3e48cdbe2d77dc0dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 9fe7e6ee706f9d9fc1f91a3b4863c99bee08dbcbf8a5640ecf0d0fd821004d66
[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" "9fe7e6ee706f9d9fc1f91a3b4863c99bee08dbcbf8a5640ecf0d0fd821004d66", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling cl-sys v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]    Compiling subtle v2.0.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking hex v0.3.1
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-complex v0.1.42
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling ocl-core v0.11.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking digest v0.7.2
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking blake2 v0.7.0
[INFO] [stderr]     Checking qutex v0.2.0
[INFO] [stderr]    Compiling curve25519-dalek v1.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking ocl-core-vector v0.1.0
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking ocl v0.19.3
[INFO] [stderr]  Documenting nano-vanity v0.4.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.12s
[INFO] running `Command { std: "docker" "inspect" "9fe7e6ee706f9d9fc1f91a3b4863c99bee08dbcbf8a5640ecf0d0fd821004d66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe7e6ee706f9d9fc1f91a3b4863c99bee08dbcbf8a5640ecf0d0fd821004d66", kill_on_drop: false }`
[INFO] [stdout] 9fe7e6ee706f9d9fc1f91a3b4863c99bee08dbcbf8a5640ecf0d0fd821004d66