[INFO] cloning repository https://github.com/flatcar-linux/coreos-metadata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flatcar-linux/coreos-metadata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9d380dbb868bf46833c08378f35048666f7c404
[INFO] [stderr] warning: refname 'HEAD' is ambiguous.
[INFO] documenting flatcar-linux/coreos-metadata against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flatcar-linux/coreos-metadata 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 git repo https://github.com/flatcar-linux/coreos-metadata
[INFO] finished tweaking git repo https://github.com/flatcar-linux/coreos-metadata
[INFO] tweaked toml for git repo https://github.com/flatcar-linux/coreos-metadata written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/flatcar-linux/coreos-metadata 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 serde_derive v1.0.90
[INFO] [stderr]   Downloaded reqwest v0.9.5
[INFO] [stderr]   Downloaded serde-xml-rs v0.2.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.3
[INFO] [stderr]   Downloaded smallvec v0.6.7
[INFO] [stderr]   Downloaded slog-async v2.3.0
[INFO] [stderr]   Downloaded time v0.1.41
[INFO] [stderr]   Downloaded tokio v0.1.13
[INFO] [stderr]   Downloaded parking_lot v0.6.4
[INFO] [stderr]   Downloaded slog v2.4.1
[INFO] [stderr]   Downloaded num_cpus v1.9.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.0
[INFO] [stderr]   Downloaded tokio-fs v0.1.4
[INFO] [stderr]   Downloaded security-framework v0.2.1
[INFO] [stderr]   Downloaded vcpkg v0.2.6
[INFO] [stderr]   Downloaded core-foundation v0.5.1
[INFO] [stderr]   Downloaded phf_codegen v0.7.23
[INFO] [stderr]   Downloaded phf v0.7.23
[INFO] [stderr]   Downloaded crc32fast v1.1.2
[INFO] [stderr]   Downloaded string v0.1.2
[INFO] [stderr]   Downloaded pnet_macros_support v0.22.0
[INFO] [stderr]   Downloaded aho-corasick v0.6.9
[INFO] [stderr]   Downloaded colored v1.6.1
[INFO] [stderr]   Downloaded byte-tools v0.3.0
[INFO] [stderr]   Downloaded tokio-timer v0.2.8
[INFO] [stderr]   Downloaded pnet v0.22.0
[INFO] [stderr]   Downloaded memchr v2.1.2
[INFO] [stderr]   Downloaded schannel v0.1.14
[INFO] [stderr]   Downloaded proc-macro2 v0.4.24
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.4
[INFO] [stderr]   Downloaded difference v2.0.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.13
[INFO] [stderr]   Downloaded cc v1.0.26
[INFO] [stderr]   Downloaded syn v0.15.23
[INFO] [stderr]   Downloaded pnet_base v0.22.0
[INFO] [stderr]   Downloaded hyper v0.12.18
[INFO] [stderr]   Downloaded slog-scope v4.0.1
[INFO] [stderr]   Downloaded futures v0.1.25
[INFO] [stderr]   Downloaded arrayvec v0.4.9
[INFO] [stderr]   Downloaded update-ssh-keys v0.4.1
[INFO] [stderr]   Downloaded libc v0.2.47
[INFO] [stderr]   Downloaded block-padding v0.1.2
[INFO] [stderr]   Downloaded opaque-debug v0.2.1
[INFO] [stderr]   Downloaded ipnetwork v0.14.0
[INFO] [stderr]   Downloaded pnet_datalink v0.22.0
[INFO] [stderr]   Downloaded pnet_packet v0.22.0
[INFO] [stderr]   Downloaded pnet_sys v0.22.0
[INFO] [stderr]   Downloaded pnet_transport v0.22.0
[INFO] [stderr]   Downloaded h2 v0.1.14
[INFO] [stderr]   Downloaded http v0.1.14
[INFO] [stderr]   Downloaded hyper-tls v0.3.1
[INFO] [stderr]   Downloaded libflate v0.1.19
[INFO] [stderr]   Downloaded unicase v2.2.0
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.4
[INFO] [stderr]   Downloaded openssl v0.10.20
[INFO] [stderr]   Downloaded phf_generator v0.7.23
[INFO] [stderr]   Downloaded mockito v0.17.0
[INFO] [stderr]   Downloaded phf_shared v0.7.23
[INFO] [stderr]   Downloaded openssl-sys v0.9.43
[INFO] [stderr]   Downloaded security-framework-sys v0.2.1
[INFO] [stderr]   Downloaded native-tls v0.2.2
[INFO] [stderr]   Downloaded rand_pcg v0.1.1
[INFO] [stderr]   Downloaded tokio-tcp v0.1.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.6.3
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.9
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded serde v1.0.90
[INFO] [stderr]   Downloaded rand v0.4.3
[INFO] [stderr]   Downloaded rand_xorshift v0.1.0
[INFO] [stderr]   Downloaded tokio-executor v0.1.5
[INFO] [stderr]   Downloaded tokio-reactor v0.1.7
[INFO] [stderr]   Downloaded tokio-uds v0.2.4
[INFO] [stderr]   Downloaded uuid v0.7.1
[INFO] [stderr]   Downloaded bytes v0.4.11
[INFO] [stderr]   Downloaded tokio-io v0.1.10
[INFO] [stderr]   Downloaded rand_core v0.2.2
[INFO] [stderr]   Downloaded term v0.5.1
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded rand_chacha v0.1.0
[INFO] [stderr]   Downloaded rand v0.6.1
[INFO] [stderr]   Downloaded tempfile v3.0.7
[INFO] [stderr]   Downloaded rand_core v0.3.0
[INFO] [stderr]   Downloaded remove_dir_all v0.5.1
[INFO] [stderr]   Downloaded quote v0.6.10
[INFO] [stderr]   Downloaded xml-rs v0.3.6
[INFO] [stderr]   Downloaded redox_syscall v0.1.44
[INFO] [stderr]   Downloaded slog-term v2.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] 62ee8f086c7046331eb639f21e23fb2d6226adf5f1afb9854d627723ee7fb377
[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" "62ee8f086c7046331eb639f21e23fb2d6226adf5f1afb9854d627723ee7fb377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62ee8f086c7046331eb639f21e23fb2d6226adf5f1afb9854d627723ee7fb377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62ee8f086c7046331eb639f21e23fb2d6226adf5f1afb9854d627723ee7fb377", kill_on_drop: false }`
[INFO] [stdout] 62ee8f086c7046331eb639f21e23fb2d6226adf5f1afb9854d627723ee7fb377
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 308e6ce46f8f30e5253991c30d36c6baf4760a5e1ee410b9472fcfc34fa60131
[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" "308e6ce46f8f30e5253991c30d36c6baf4760a5e1ee410b9472fcfc34fa60131", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling arrayvec v0.4.9
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking string v0.1.2
[INFO] [stderr]    Compiling encoding_rs v0.8.13
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking tokio-timer v0.2.8
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]    Compiling openssl-sys v0.9.43
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking ipnetwork v0.14.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking serde-xml-rs v0.2.1
[INFO] [stderr]     Checking block-buffer v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking openssh-keys v0.4.1
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-scope v4.0.1
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking pnet_sys v0.22.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking nix v0.13.0
[INFO] [stderr]     Checking users v0.8.1
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]     Checking pnet_datalink v0.22.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking http v0.1.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking tempfile v3.0.7
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking h2 v0.1.14
[INFO] [stderr]     Checking hyper v0.12.18
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.5
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.21.0
[INFO] [stderr]    Compiling pnet_packet v0.22.0
[INFO] [stderr]     Checking pnet_transport v0.22.0
[INFO] [stderr]     Checking pnet v0.22.0
[INFO] [stderr]  Documenting afterburn v4.0.1-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "308e6ce46f8f30e5253991c30d36c6baf4760a5e1ee410b9472fcfc34fa60131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "308e6ce46f8f30e5253991c30d36c6baf4760a5e1ee410b9472fcfc34fa60131", kill_on_drop: false }`
[INFO] [stdout] 308e6ce46f8f30e5253991c30d36c6baf4760a5e1ee410b9472fcfc34fa60131