[INFO] updating cached repository https://github.com/shurizzle/tomography
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3745a34eaf9c95a79854566dd83189de0be4a1a0
[INFO] documenting shurizzle/tomography against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshurizzle%2Ftomography" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shurizzle/tomography on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shurizzle/tomography
[INFO] finished tweaking git repo https://github.com/shurizzle/tomography
[INFO] tweaked toml for git repo https://github.com/shurizzle/tomography written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/shurizzle/tomography already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1782ef6a5bc9b83c6397d0192d30fcbf4f560364685e533e82c0b22c90437a74
[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" "1782ef6a5bc9b83c6397d0192d30fcbf4f560364685e533e82c0b22c90437a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1782ef6a5bc9b83c6397d0192d30fcbf4f560364685e533e82c0b22c90437a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1782ef6a5bc9b83c6397d0192d30fcbf4f560364685e533e82c0b22c90437a74", kill_on_drop: false }`
[INFO] [stdout] 1782ef6a5bc9b83c6397d0192d30fcbf4f560364685e533e82c0b22c90437a74
[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" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 856c19a8e66f1bef01592d9916ed685315f95b085da93b973cd888df297b04ae
[INFO] running `Command { std: "docker" "start" "-a" "856c19a8e66f1bef01592d9916ed685315f95b085da93b973cd888df297b04ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling rug v1.4.0
[INFO] [stderr]    Compiling tomography v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.1.13
[INFO] [stderr]  Documenting tomography v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `uuid`
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate uuid;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `tomography`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name tomography src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-be1cf7a3d1b0c497.rmeta --extern errno=/opt/rustwide/target/debug/deps/liberrno-1817a6971eb3813a.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-c3393715aaf41a84.rmeta --extern rug=/opt/rustwide/target/debug/deps/librug-2fb5f1cbb874aa20.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "856c19a8e66f1bef01592d9916ed685315f95b085da93b973cd888df297b04ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856c19a8e66f1bef01592d9916ed685315f95b085da93b973cd888df297b04ae", kill_on_drop: false }`
[INFO] [stdout] 856c19a8e66f1bef01592d9916ed685315f95b085da93b973cd888df297b04ae