[INFO] updating cached repository https://github.com/dat2/csv-aggregator
[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] ff00876adf350ccbd5bf04b02e558347a7f0971f
[INFO] documenting dat2/csv-aggregator against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdat2%2Fcsv-aggregator" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dat2/csv-aggregator 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/dat2/csv-aggregator
[INFO] finished tweaking git repo https://github.com/dat2/csv-aggregator
[INFO] tweaked toml for git repo https://github.com/dat2/csv-aggregator written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/dat2/csv-aggregator 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] eecc73aa49db936f3ba1390b90409903bbeaeb10c46ece0b5ccddc5ba18d116d
[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" "eecc73aa49db936f3ba1390b90409903bbeaeb10c46ece0b5ccddc5ba18d116d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eecc73aa49db936f3ba1390b90409903bbeaeb10c46ece0b5ccddc5ba18d116d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eecc73aa49db936f3ba1390b90409903bbeaeb10c46ece0b5ccddc5ba18d116d", kill_on_drop: false }`
[INFO] [stdout] eecc73aa49db936f3ba1390b90409903bbeaeb10c46ece0b5ccddc5ba18d116d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 4aceb21217ed42c1fe334ef485f049490d702ae612aecb73f9fd1cdb22f5cb58
[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" "4aceb21217ed42c1fe334ef485f049490d702ae612aecb73f9fd1cdb22f5cb58", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v1.0.24
[INFO] [stderr]     Checking linked-hash-map v0.5.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking combine v3.0.0-alpha.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking backtrace-sys v0.1.16
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking backtrace v0.3.4
[INFO] [stderr]     Checking clap v2.29.0
[INFO] [stderr]     Checking csv-core v0.1.3
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking float-cmp v0.2.5
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.24
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking csv v1.0.0-beta.5
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]  Documenting csv-aggregator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.63s
[INFO] running `Command { std: "docker" "inspect" "4aceb21217ed42c1fe334ef485f049490d702ae612aecb73f9fd1cdb22f5cb58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aceb21217ed42c1fe334ef485f049490d702ae612aecb73f9fd1cdb22f5cb58", kill_on_drop: false }`
[INFO] [stdout] 4aceb21217ed42c1fe334ef485f049490d702ae612aecb73f9fd1cdb22f5cb58