[INFO] cloning repository https://github.com/sile/plumtuna
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sile/plumtuna" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36db99a3e1a0a7b4a784c6f458905f6ba2d9d351
[INFO] documenting sile/plumtuna against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sile/plumtuna on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sile/plumtuna
[INFO] finished tweaking git repo https://github.com/sile/plumtuna
[INFO] tweaked toml for git repo https://github.com/sile/plumtuna written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/sile/plumtuna already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.46.0" "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] 371a5e8abe6ba52c1bb28dad9ff56278b54b64bb36b4f6be5cbd9f31ccc68711
[INFO] running `Command { std: "docker" "start" "-a" "371a5e8abe6ba52c1bb28dad9ff56278b54b64bb36b4f6be5cbd9f31ccc68711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "371a5e8abe6ba52c1bb28dad9ff56278b54b64bb36b4f6be5cbd9f31ccc68711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "371a5e8abe6ba52c1bb28dad9ff56278b54b64bb36b4f6be5cbd9f31ccc68711", kill_on_drop: false }`
[INFO] [stdout] 371a5e8abe6ba52c1bb28dad9ff56278b54b64bb36b4f6be5cbd9f31ccc68711
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6661f6dad623c7675b9cc9d4d453f78fd81aef538eb68ee8e2a6beec9b6a73b7
[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" "6661f6dad623c7675b9cc9d4d453f78fd81aef538eb68ee8e2a6beec9b6a73b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking atomic_immut v0.1.4
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking factory v0.1.1
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking plumtree v0.1.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking rand_pcg v0.1.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking libflate v0.1.20
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking fibers v0.1.12
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking hyparview v0.1.3
[INFO] [stderr]     Checking fibers_global v0.1.2
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking slog-scope v4.1.1
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking trackable v0.2.21
[INFO] [stderr]     Checking prometrics v0.1.11
[INFO] [stderr]     Checking bytecodec v0.4.11
[INFO] [stderr]     Checking sloggers v0.3.2
[INFO] [stderr]     Checking tasque v0.1.4
[INFO] [stderr]     Checking fibers_tasque v0.1.1
[INFO] [stderr]     Checking fibers_rpc v0.3.0
[INFO] [stderr]     Checking httpcodec v0.2.2
[INFO] [stderr]     Checking fibers_http_server v0.1.10
[INFO] [stderr]     Checking plumcast v0.1.5
[INFO] [stderr]  Documenting plumtuna v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "6661f6dad623c7675b9cc9d4d453f78fd81aef538eb68ee8e2a6beec9b6a73b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6661f6dad623c7675b9cc9d4d453f78fd81aef538eb68ee8e2a6beec9b6a73b7", kill_on_drop: false }`
[INFO] [stdout] 6661f6dad623c7675b9cc9d4d453f78fd81aef538eb68ee8e2a6beec9b6a73b7