[INFO] fetching crate mhz19 0.1.0...
[INFO] documenting mhz19-0.1.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate mhz19 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mhz19 0.1.0 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 mhz19 0.1.0
[INFO] finished tweaking crates.io crate mhz19 0.1.0
[INFO] tweaked toml for crates.io crate mhz19 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate mhz19 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 33ed023a0dfe0e5f2cefe887b5d7248c0f2468a7e6ad6b3b28c07a484166e492
[INFO] running `Command { std: "docker" "start" "-a" "33ed023a0dfe0e5f2cefe887b5d7248c0f2468a7e6ad6b3b28c07a484166e492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33ed023a0dfe0e5f2cefe887b5d7248c0f2468a7e6ad6b3b28c07a484166e492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33ed023a0dfe0e5f2cefe887b5d7248c0f2468a7e6ad6b3b28c07a484166e492", kill_on_drop: false }`
[INFO] [stdout] 33ed023a0dfe0e5f2cefe887b5d7248c0f2468a7e6ad6b3b28c07a484166e492
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a5cd848687cf44653a8e971678b8ce6d4330c71c6e816371168dbdcd7e5bf4f3
[INFO] running `Command { std: "docker" "start" "-a" "a5cd848687cf44653a8e971678b8ce6d4330c71c6e816371168dbdcd7e5bf4f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling err-derive v0.1.5
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking mhz19 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting mhz19 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.64s
[INFO] running `Command { std: "docker" "inspect" "a5cd848687cf44653a8e971678b8ce6d4330c71c6e816371168dbdcd7e5bf4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5cd848687cf44653a8e971678b8ce6d4330c71c6e816371168dbdcd7e5bf4f3", kill_on_drop: false }`
[INFO] [stdout] a5cd848687cf44653a8e971678b8ce6d4330c71c6e816371168dbdcd7e5bf4f3