[INFO] fetching crate tugger 0.1.0...
[INFO] documenting tugger-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate tugger 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tugger 0.1.0 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 tugger 0.1.0
[INFO] finished tweaking crates.io crate tugger 0.1.0
[INFO] tweaked toml for crates.io crate tugger 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate tugger 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ar v0.7.0
[INFO] [stderr]   Downloaded codemap v0.1.2
[INFO] [stderr]   Downloaded starlark-repl v0.2.0
[INFO] [stderr]   Downloaded debian v0.1.1
[INFO] [stderr]   Downloaded starlark v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 96ce9d8516919a94a306ca3a2f813427294726afcaae35adbef78b1cd9306d58
[INFO] running `Command { std: "docker" "start" "-a" "96ce9d8516919a94a306ca3a2f813427294726afcaae35adbef78b1cd9306d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96ce9d8516919a94a306ca3a2f813427294726afcaae35adbef78b1cd9306d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ce9d8516919a94a306ca3a2f813427294726afcaae35adbef78b1cd9306d58", kill_on_drop: false }`
[INFO] [stdout] 96ce9d8516919a94a306ca3a2f813427294726afcaae35adbef78b1cd9306d58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ab95b387b029f28d2aac7b6001e7566494ff760c841f3b1a8fe7cb8bfbca4f0a
[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" "ab95b387b029f28d2aac7b6001e7566494ff760c841f3b1a8fe7cb8bfbca4f0a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]     Checking codemap v0.1.2
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]     Checking smallstr v0.1.0
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking filetime v0.2.7
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]     Checking ar v0.7.0
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking codemap-diagnostic v0.1.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libgit2-sys v0.9.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking debian v0.1.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking mortal v0.1.5
[INFO] [stderr]     Checking linefeed v0.5.4
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]     Checking git2 v0.10.0
[INFO] [stderr]    Compiling starlark v0.2.0
[INFO] [stderr]     Checking starlark-repl v0.2.0
[INFO] [stderr]  Documenting tugger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 55s
[INFO] running `Command { std: "docker" "inspect" "ab95b387b029f28d2aac7b6001e7566494ff760c841f3b1a8fe7cb8bfbca4f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab95b387b029f28d2aac7b6001e7566494ff760c841f3b1a8fe7cb8bfbca4f0a", kill_on_drop: false }`
[INFO] [stdout] ab95b387b029f28d2aac7b6001e7566494ff760c841f3b1a8fe7cb8bfbca4f0a