[INFO] fetching crate cp211x_uart 0.2.2...
[INFO] documenting cp211x_uart-0.2.2 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate cp211x_uart 0.2.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cp211x_uart 0.2.2 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 cp211x_uart 0.2.2
[INFO] finished tweaking crates.io crate cp211x_uart 0.2.2
[INFO] tweaked toml for crates.io crate cp211x_uart 0.2.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 79dcd1ca09c897d7cc3e22d75479cbfcb2aff306af12e609de47ac02ac0b6192
[INFO] running `Command { std: "docker" "start" "-a" "79dcd1ca09c897d7cc3e22d75479cbfcb2aff306af12e609de47ac02ac0b6192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79dcd1ca09c897d7cc3e22d75479cbfcb2aff306af12e609de47ac02ac0b6192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79dcd1ca09c897d7cc3e22d75479cbfcb2aff306af12e609de47ac02ac0b6192", kill_on_drop: false }`
[INFO] [stdout] 79dcd1ca09c897d7cc3e22d75479cbfcb2aff306af12e609de47ac02ac0b6192
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e3c29269d053346ffd26f02eed74c7d0fd36cc1137c5c96855ae57821f87114c
[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" "e3c29269d053346ffd26f02eed74c7d0fd36cc1137c5c96855ae57821f87114c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling hidapi-sys v0.1.4
[INFO] [stderr]     Checking hid v0.4.1
[INFO] [stderr]     Checking addr2line v0.12.2
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]  Documenting cp211x_uart v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[1]` cannot be resolved, ignoring it.
[INFO] [stdout]  --> src/lib.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 | //! See more information [here][1].
[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: `[1]` cannot be resolved, ignoring it.
[INFO] [stdout]  --> src/lib.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 | //! See more information [here][1].
[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: `[1]` cannot be resolved, ignoring it.
[INFO] [stdout]  --> src/lib.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | //! [1]: https://www.silabs.com/products/interface/usb-bridges/classic-usb-bridges/device.cp2110-f01-gm
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.84s
[INFO] running `Command { std: "docker" "inspect" "e3c29269d053346ffd26f02eed74c7d0fd36cc1137c5c96855ae57821f87114c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c29269d053346ffd26f02eed74c7d0fd36cc1137c5c96855ae57821f87114c", kill_on_drop: false }`
[INFO] [stdout] e3c29269d053346ffd26f02eed74c7d0fd36cc1137c5c96855ae57821f87114c