[INFO] fetching crate htrpc 0.0.17...
[INFO] documenting htrpc-0.0.17 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate htrpc 0.0.17 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate htrpc 0.0.17 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 htrpc 0.0.17
[INFO] finished tweaking crates.io crate htrpc 0.0.17
[INFO] tweaked toml for crates.io crate htrpc 0.0.17 written to /workspace/builds/worker-6/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]  Downloading crates ...
[INFO] [stderr]   Downloaded fibers v0.1.13
[INFO] [stderr]   Downloaded nbchan v0.1.3
[INFO] [stderr]   Downloaded splay_tree v0.2.10
[INFO] [stderr]   Downloaded url_serde v0.2.0
[INFO] [stderr]   Downloaded rmp v0.8.9
[INFO] [stderr]   Downloaded handy_async v0.2.13
[INFO] [stderr]   Downloaded miasht v0.0.5
[INFO] [stderr]   Downloaded serdeconv v0.3.0
[INFO] [stderr]   Downloaded rmp-serde v0.13.7
[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" "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] 7e25224865a724cbfb84fea42428c0f32b2d789592c7972607912c60df3af465
[INFO] running `Command { std: "docker" "start" "-a" "7e25224865a724cbfb84fea42428c0f32b2d789592c7972607912c60df3af465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e25224865a724cbfb84fea42428c0f32b2d789592c7972607912c60df3af465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e25224865a724cbfb84fea42428c0f32b2d789592c7972607912c60df3af465", kill_on_drop: false }`
[INFO] [stdout] 7e25224865a724cbfb84fea42428c0f32b2d789592c7972607912c60df3af465
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a5e9cba0c673ab7adb2c50b21919f038291f4827d80538c640712aeea67c20ae
[INFO] running `Command { std: "docker" "start" "-a" "a5e9cba0c673ab7adb2c50b21919f038291f4827d80538c640712aeea67c20ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking handy_async v0.2.13
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking fibers v0.1.13
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking miasht v0.0.5
[INFO] [stderr]     Checking serdeconv v0.3.0
[INFO] [stderr]  Documenting htrpc v0.0.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.36s
[INFO] running `Command { std: "docker" "inspect" "a5e9cba0c673ab7adb2c50b21919f038291f4827d80538c640712aeea67c20ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5e9cba0c673ab7adb2c50b21919f038291f4827d80538c640712aeea67c20ae", kill_on_drop: false }`
[INFO] [stdout] a5e9cba0c673ab7adb2c50b21919f038291f4827d80538c640712aeea67c20ae