[INFO] fetching crate tarpc 0.21.0...
[INFO] documenting tarpc-0.21.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate tarpc 0.21.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tarpc 0.21.0 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 tarpc 0.21.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tarpc 0.21.0
[INFO] tweaked toml for crates.io crate tarpc 0.21.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate tarpc 0.21.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tarpc-plugins v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 157f31a03b30b17001470fbc66efa93f2fa30642ad2629c9ab6c52601fcb3f34
[INFO] running `Command { std: "docker" "start" "-a" "157f31a03b30b17001470fbc66efa93f2fa30642ad2629c9ab6c52601fcb3f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "157f31a03b30b17001470fbc66efa93f2fa30642ad2629c9ab6c52601fcb3f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "157f31a03b30b17001470fbc66efa93f2fa30642ad2629c9ab6c52601fcb3f34", kill_on_drop: false }`
[INFO] [stdout] 157f31a03b30b17001470fbc66efa93f2fa30642ad2629c9ab6c52601fcb3f34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] a104a221e6e06309ee589b6832715b14a687a25ccb06c147f1ad9d231e84af74
[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" "a104a221e6e06309ee589b6832715b14a687a25ccb06c147f1ad9d231e84af74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking bytes v0.5.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tarpc-plugins v0.8.0
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]  Documenting tarpc v0.21.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[serde_transport::tcp]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/lib.rs:138:65
[INFO] [stdout]     |
[INFO] [stdout] 138 | //! behind the `serde-transport` feature, with additional [TCP](serde_transport::tcp) functionality
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[serde_transport]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/lib.rs:137:80
[INFO] [stdout]     |
[INFO] [stdout] 137 | //! [in-process channel](rpc::transport::channel), tarpc also ships a generic [`serde_transport`]
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Transport]` cannot be resolved, ignoring it.
[INFO] [stdout]  --> src/rpc/transport/mod.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | //! Provides a [`Transport`] trait as well as implementations.
[INFO] [stdout]   |                 ^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]   |
[INFO] [stdout]   = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Transport]` cannot be resolved, ignoring it.
[INFO] [stdout]  --> src/rpc/transport/mod.rs:9:82
[INFO] [stdout]   |
[INFO] [stdout] 9 | //! The rpc crate is transport- and protocol-agnostic. Any transport that impls [`Transport`]
[INFO] [stdout]   |                                                                                  ^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]   |
[INFO] [stdout]   = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.30s
[INFO] running `Command { std: "docker" "inspect" "a104a221e6e06309ee589b6832715b14a687a25ccb06c147f1ad9d231e84af74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a104a221e6e06309ee589b6832715b14a687a25ccb06c147f1ad9d231e84af74", kill_on_drop: false }`
[INFO] [stdout] a104a221e6e06309ee589b6832715b14a687a25ccb06c147f1ad9d231e84af74