[INFO] updating cached repository https://github.com/amarant/mbutiles
[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] b7b55e9f8090ffc6343c3b5f20d1fec1adbf4f0f
[INFO] documenting amarant/mbutiles against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarant%2Fmbutiles" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amarant/mbutiles 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 git repo https://github.com/amarant/mbutiles
[INFO] finished tweaking git repo https://github.com/amarant/mbutiles
[INFO] tweaked toml for git repo https://github.com/amarant/mbutiles written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/amarant/mbutiles 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] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 435bd9b1c9ec17d437b6f1f323736cce2d0e4bc7cc0a254cee840a5ca2fc4f73
[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" "435bd9b1c9ec17d437b6f1f323736cce2d0e4bc7cc0a254cee840a5ca2fc4f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "435bd9b1c9ec17d437b6f1f323736cce2d0e4bc7cc0a254cee840a5ca2fc4f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "435bd9b1c9ec17d437b6f1f323736cce2d0e4bc7cc0a254cee840a5ca2fc4f73", kill_on_drop: false }`
[INFO] [stdout] 435bd9b1c9ec17d437b6f1f323736cce2d0e4bc7cc0a254cee840a5ca2fc4f73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] b8e47261dea2152be62012ba985350f220805d45637ebb7a057a72d25d50bfa2
[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" "b8e47261dea2152be62012ba985350f220805d45637ebb7a057a72d25d50bfa2", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking linked-hash-map v0.0.9
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.5.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking lru-cache v0.0.7
[INFO] [stderr]     Checking term-painter v0.2.4
[INFO] [stderr]     Checking rusqlite v0.7.4
[INFO] [stderr]     Checking stdio_logger v0.1.1
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]  Documenting mbutiles v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.22s
[INFO] running `Command { std: "docker" "inspect" "b8e47261dea2152be62012ba985350f220805d45637ebb7a057a72d25d50bfa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e47261dea2152be62012ba985350f220805d45637ebb7a057a72d25d50bfa2", kill_on_drop: false }`
[INFO] [stdout] b8e47261dea2152be62012ba985350f220805d45637ebb7a057a72d25d50bfa2