[INFO] fetching crate bc 0.1.9...
[INFO] documenting bc-0.1.9 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate bc 0.1.9 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate bc 0.1.9 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 bc 0.1.9
[INFO] finished tweaking crates.io crate bc 0.1.9
[INFO] tweaked toml for crates.io crate bc 0.1.9 written to /workspace/builds/worker-0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded execute-command-tokens v0.1.2
[INFO] [stderr]   Downloaded execute v0.2.6
[INFO] [stderr]   Downloaded execute-command-macro-impl v0.1.2
[INFO] [stderr]   Downloaded execute-command-macro v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 45307a266483b8c3f139eeafae8d5f20fe9911a25bd42d74d8af6c85569e47d0
[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" "45307a266483b8c3f139eeafae8d5f20fe9911a25bd42d74d8af6c85569e47d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45307a266483b8c3f139eeafae8d5f20fe9911a25bd42d74d8af6c85569e47d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45307a266483b8c3f139eeafae8d5f20fe9911a25bd42d74d8af6c85569e47d0", kill_on_drop: false }`
[INFO] [stdout] 45307a266483b8c3f139eeafae8d5f20fe9911a25bd42d74d8af6c85569e47d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 2c8a91a68744195822ee79fd82452c1f3ae9e4afba3d3ccb1893a65c32551ff7
[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" "2c8a91a68744195822ee79fd82452c1f3ae9e4afba3d3ccb1893a65c32551ff7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling execute-command-tokens v0.1.2
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling execute-command-macro-impl v0.1.2
[INFO] [stderr]     Checking execute-command-macro v0.1.2
[INFO] [stderr]     Checking execute v0.2.6
[INFO] [stderr]  Documenting bc v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.58s
[INFO] running `Command { std: "docker" "inspect" "2c8a91a68744195822ee79fd82452c1f3ae9e4afba3d3ccb1893a65c32551ff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8a91a68744195822ee79fd82452c1f3ae9e4afba3d3ccb1893a65c32551ff7", kill_on_drop: false }`
[INFO] [stdout] 2c8a91a68744195822ee79fd82452c1f3ae9e4afba3d3ccb1893a65c32551ff7