[INFO] fetching crate cargo-dinghy 0.4.39...
[INFO] documenting cargo-dinghy-0.4.39 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate cargo-dinghy 0.4.39 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cargo-dinghy 0.4.39 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 crates.io crate cargo-dinghy 0.4.39
[INFO] finished tweaking crates.io crate cargo-dinghy 0.4.39
[INFO] tweaked toml for crates.io crate cargo-dinghy 0.4.39 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate cargo-dinghy 0.4.39 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 213c4c677fa8190c4efa44d51a96c80fcd81a8f5c204d69680a74b26e551bb49
[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" "213c4c677fa8190c4efa44d51a96c80fcd81a8f5c204d69680a74b26e551bb49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "213c4c677fa8190c4efa44d51a96c80fcd81a8f5c204d69680a74b26e551bb49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213c4c677fa8190c4efa44d51a96c80fcd81a8f5c204d69680a74b26e551bb49", kill_on_drop: false }`
[INFO] [stdout] 213c4c677fa8190c4efa44d51a96c80fcd81a8f5c204d69680a74b26e551bb49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6a4a5d54bafb217b3319eaeb62341b6f805d9d7c1ccf921c4715ab36bd316dd7
[INFO] running `Command { std: "docker" "start" "-a" "6a4a5d54bafb217b3319eaeb62341b6f805d9d7c1ccf921c4715ab36bd316dd7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling curl v0.4.31
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling dinghy-lib v0.4.39
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]     Checking opener v0.4.1
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking jobserver v0.1.21
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking tar v0.4.29
[INFO] [stderr]     Checking cc v1.0.58
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking dinghy-build v0.4.39
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling curl-sys v0.4.33+curl-7.71.1
[INFO] [stderr]    Compiling libssh2-sys v0.2.18
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]     Checking git2 v0.11.0
[INFO] [stderr]     Checking git2-curl v0.12.0
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking cargo-platform v0.1.1
[INFO] [stderr]     Checking serde_ignored v0.1.2
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking plist v0.5.5
[INFO] [stderr]     Checking rustfix v0.5.1
[INFO] [stderr]     Checking crates-io v0.31.1
[INFO] [stderr]     Checking cargo v0.43.1
[INFO] [stderr]  Documenting cargo-dinghy v0.4.39 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `Command { std: "docker" "inspect" "6a4a5d54bafb217b3319eaeb62341b6f805d9d7c1ccf921c4715ab36bd316dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a4a5d54bafb217b3319eaeb62341b6f805d9d7c1ccf921c4715ab36bd316dd7", kill_on_drop: false }`
[INFO] [stdout] 6a4a5d54bafb217b3319eaeb62341b6f805d9d7c1ccf921c4715ab36bd316dd7