[INFO] crate call-trace-tls 0.4.0 is already in cache
[INFO] documenting call-trace-tls-0.4.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate call-trace-tls 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate call-trace-tls 0.4.0 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 call-trace-tls 0.4.0
[INFO] finished tweaking crates.io crate call-trace-tls 0.4.0
[INFO] tweaked toml for crates.io crate call-trace-tls 0.4.0 written to /workspace/builds/worker-1/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] 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] d9fc71ca5c0847fe47cd4ee14026516849d66b50262f23c2019a7182f10f71f4
[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" "d9fc71ca5c0847fe47cd4ee14026516849d66b50262f23c2019a7182f10f71f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9fc71ca5c0847fe47cd4ee14026516849d66b50262f23c2019a7182f10f71f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9fc71ca5c0847fe47cd4ee14026516849d66b50262f23c2019a7182f10f71f4", kill_on_drop: false }`
[INFO] [stdout] d9fc71ca5c0847fe47cd4ee14026516849d66b50262f23c2019a7182f10f71f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 92879d9f2c8e8b4d25fe1463c9bc461dde1c5153a95f9e201cdb5c9cdf02a57a
[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" "92879d9f2c8e8b4d25fe1463c9bc461dde1c5153a95f9e201cdb5c9cdf02a57a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling call-trace-macro v0.4.0
[INFO] [stderr]     Checking call-trace v0.4.0
[INFO] [stderr]  Documenting call-trace-tls v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | / ```
[INFO] [stdout] 7 | |
[INFO] [stdout] 8 | | ```
[INFO] [stdout]   | |___^
[INFO] [stdout]   |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]   |
[INFO] [stdout] 6 | ```text
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / ```
[INFO] [stdout] 19 | |
[INFO] [stdout] 20 | | ```
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 18 | ```text
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.15s
[INFO] running `Command { std: "docker" "inspect" "92879d9f2c8e8b4d25fe1463c9bc461dde1c5153a95f9e201cdb5c9cdf02a57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92879d9f2c8e8b4d25fe1463c9bc461dde1c5153a95f9e201cdb5c9cdf02a57a", kill_on_drop: false }`
[INFO] [stdout] 92879d9f2c8e8b4d25fe1463c9bc461dde1c5153a95f9e201cdb5c9cdf02a57a