[INFO] fetching crate timetrack 0.3.2...
[INFO] documenting timetrack-0.3.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate timetrack 0.3.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate timetrack 0.3.2 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timetrack 0.3.2
[INFO] finished tweaking crates.io crate timetrack 0.3.2
[INFO] tweaked toml for crates.io crate timetrack 0.3.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate timetrack 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prettytable-rs v0.7.0
[INFO] [stderr]   Downloaded lazy_static v1.1.0
[INFO] [stderr]   Downloaded version_check v0.1.4
[INFO] [stderr]   Downloaded fsevent-sys v0.1.6
[INFO] [stderr]   Downloaded fsevent v0.2.17
[INFO] [stderr]   Downloaded winapi-util v0.1.1
[INFO] [stderr]   Downloaded termcolor v1.0.3
[INFO] [stderr]   Downloaded log v0.4.3
[INFO] [stderr]   Downloaded mio v0.5.1
[INFO] [stderr]   Downloaded same-file v1.0.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.40
[INFO] [stderr]   Downloaded bitflags v1.0.3
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded ucd-util v0.1.1
[INFO] [stderr]   Downloaded aho-corasick v0.6.8
[INFO] [stderr]   Downloaded time v0.1.40
[INFO] [stderr]   Downloaded utf8-ranges v1.0.1
[INFO] [stderr]   Downloaded term v0.5.1
[INFO] [stderr]   Downloaded quote v0.6.6
[INFO] [stderr]   Downloaded serde_derive v1.0.72
[INFO] [stderr]   Downloaded clap v2.32.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.2
[INFO] [stderr]   Downloaded regex v1.0.4
[INFO] [stderr]   Downloaded winapi v0.3.5
[INFO] [stderr]   Downloaded termion v1.5.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.13
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded humantime v1.1.1
[INFO] [stderr]   Downloaded cfg-if v0.1.5
[INFO] [stderr]   Downloaded walkdir v2.2.0
[INFO] [stderr]   Downloaded byteorder v1.2.6
[INFO] [stderr]   Downloaded syn v0.14.8
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] [stderr]   Downloaded serde v1.0.72
[INFO] [stderr]   Downloaded toml v0.4.6
[INFO] [stderr]   Downloaded memchr v2.0.2
[INFO] [stderr]   Downloaded directories v1.0.1
[INFO] [stderr]   Downloaded encode_unicode v0.3.2
[INFO] [stderr]   Downloaded notify v4.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", 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] fcdf1ef49ddc5e65ab30b2bb4763759ca09e6931614c4807eac1d9b55ceba762
[INFO] running `Command { std: "docker" "start" "-a" "fcdf1ef49ddc5e65ab30b2bb4763759ca09e6931614c4807eac1d9b55ceba762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcdf1ef49ddc5e65ab30b2bb4763759ca09e6931614c4807eac1d9b55ceba762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcdf1ef49ddc5e65ab30b2bb4763759ca09e6931614c4807eac1d9b55ceba762", kill_on_drop: false }`
[INFO] [stdout] fcdf1ef49ddc5e65ab30b2bb4763759ca09e6931614c4807eac1d9b55ceba762
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38cff8929350d2d2942cb62e168eeebd78b798799ff80b3e075a0b481631c6e9
[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" "38cff8929350d2d2942cb62e168eeebd78b798799ff80b3e075a0b481631c6e9", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling serde v1.0.72
[INFO] [stderr]    Compiling regex v1.0.4
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking termcolor v1.0.3
[INFO] [stderr]     Checking encode_unicode v0.3.2
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking walkdir v2.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking inotify v0.3.0
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking directories v1.0.1
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking prettytable-rs v0.7.0
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking notify v4.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.72
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]  Documenting timetrack v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.04s
[INFO] running `Command { std: "docker" "inspect" "38cff8929350d2d2942cb62e168eeebd78b798799ff80b3e075a0b481631c6e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38cff8929350d2d2942cb62e168eeebd78b798799ff80b3e075a0b481631c6e9", kill_on_drop: false }`
[INFO] [stdout] 38cff8929350d2d2942cb62e168eeebd78b798799ff80b3e075a0b481631c6e9