[INFO] fetching crate emailx 0.1.0...
[INFO] documenting emailx-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate emailx 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate emailx 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 emailx 0.1.0
[INFO] finished tweaking crates.io crate emailx 0.1.0
[INFO] tweaked toml for crates.io crate emailx 0.1.0 written to /workspace/builds/worker-4/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-encoding-macro-internal v0.1.8
[INFO] [stderr]   Downloaded data-encoding-macro v0.1.8
[INFO] [stderr]   Downloaded nibble_vec v0.0.4
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded radix_trie v0.1.6
[INFO] [stderr]   Downloaded trust-dns-proto v0.6.3
[INFO] [stderr]   Downloaded trust-dns v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 285fc4ce44f177d94527b15968f8d8485968d5087f7f293201e511ee2569df31
[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" "285fc4ce44f177d94527b15968f8d8485968d5087f7f293201e511ee2569df31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "285fc4ce44f177d94527b15968f8d8485968d5087f7f293201e511ee2569df31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "285fc4ce44f177d94527b15968f8d8485968d5087f7f293201e511ee2569df31", kill_on_drop: false }`
[INFO] [stdout] 285fc4ce44f177d94527b15968f8d8485968d5087f7f293201e511ee2569df31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] cc74e031227311348b180f928dc14a27af7091095f4af2877f37818ab57d6cbb
[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" "cc74e031227311348b180f928dc14a27af7091095f4af2877f37818ab57d6cbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling data-encoding v2.3.0
[INFO] [stderr]     Checking nibble_vec v0.0.4
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking radix_trie v0.1.6
[INFO] [stderr]     Checking trust-dns-proto v0.6.3
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.8
[INFO] [stderr]     Checking data-encoding-macro v0.1.8
[INFO] [stderr]     Checking trust-dns v0.15.1
[INFO] [stderr]  Documenting emailx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.71s
[INFO] running `Command { std: "docker" "inspect" "cc74e031227311348b180f928dc14a27af7091095f4af2877f37818ab57d6cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc74e031227311348b180f928dc14a27af7091095f4af2877f37818ab57d6cbb", kill_on_drop: false }`
[INFO] [stdout] cc74e031227311348b180f928dc14a27af7091095f4af2877f37818ab57d6cbb