[INFO] updating cached repository https://github.com/michael-robbins/filemapper
[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] a92a4ed3b7e2cea28bc2dd07f752ee2cd316967b
[INFO] documenting michael-robbins/filemapper against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichael-robbins%2Ffilemapper" "/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/michael-robbins/filemapper 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/michael-robbins/filemapper
[INFO] finished tweaking git repo https://github.com/michael-robbins/filemapper
[INFO] tweaked toml for git repo https://github.com/michael-robbins/filemapper written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/michael-robbins/filemapper 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-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] db0bf4dc5ed821e559e90a535d7312e7c7b2bb92fd56039c5e669cc07bdd1929
[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" "db0bf4dc5ed821e559e90a535d7312e7c7b2bb92fd56039c5e669cc07bdd1929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db0bf4dc5ed821e559e90a535d7312e7c7b2bb92fd56039c5e669cc07bdd1929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db0bf4dc5ed821e559e90a535d7312e7c7b2bb92fd56039c5e669cc07bdd1929", kill_on_drop: false }`
[INFO] [stdout] db0bf4dc5ed821e559e90a535d7312e7c7b2bb92fd56039c5e669cc07bdd1929
[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] 63ff1bd315aeacdc0a2a18d8d5a99c48b989cfae7ace1d1108ce67cb4537ed1c
[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" "63ff1bd315aeacdc0a2a18d8d5a99c48b989cfae7ace1d1108ce67cb4537ed1c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling serde v1.0.68
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking aho-corasick v0.6.5
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]  Documenting file_mapper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.69s
[INFO] running `Command { std: "docker" "inspect" "63ff1bd315aeacdc0a2a18d8d5a99c48b989cfae7ace1d1108ce67cb4537ed1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ff1bd315aeacdc0a2a18d8d5a99c48b989cfae7ace1d1108ce67cb4537ed1c", kill_on_drop: false }`
[INFO] [stdout] 63ff1bd315aeacdc0a2a18d8d5a99c48b989cfae7ace1d1108ce67cb4537ed1c