[INFO] fetching crate cargo-unleash 1.0.0-alpha.10...
[INFO] documenting cargo-unleash-1.0.0-alpha.10 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate cargo-unleash 1.0.0-alpha.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cargo-unleash 1.0.0-alpha.10 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-unleash 1.0.0-alpha.10
[INFO] finished tweaking crates.io crate cargo-unleash 1.0.0-alpha.10
[INFO] tweaked toml for crates.io crate cargo-unleash 1.0.0-alpha.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cargo-unleash 1.0.0-alpha.10 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 4a432b1388afa8d76d646b9495a240a9f9625f8528d63a7f00bfb5726bb64357
[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" "4a432b1388afa8d76d646b9495a240a9f9625f8528d63a7f00bfb5726bb64357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a432b1388afa8d76d646b9495a240a9f9625f8528d63a7f00bfb5726bb64357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a432b1388afa8d76d646b9495a240a9f9625f8528d63a7f00bfb5726bb64357", kill_on_drop: false }`
[INFO] [stdout] 4a432b1388afa8d76d646b9495a240a9f9625f8528d63a7f00bfb5726bb64357
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 09318cfee20db38dd1a88d1ac6177c82619a84872e135106600544e8bfbba50e
[INFO] running `Command { std: "docker" "start" "-a" "09318cfee20db38dd1a88d1ac6177c82619a84872e135106600544e8bfbba50e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]    Compiling anyhow v1.0.27
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking opener v0.4.1
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]     Checking lazycell v1.2.1
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[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking home v0.5.3
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[INFO] [stderr]     Checking base64 v0.11.0
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[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.0
[INFO] [stderr]     Checking mio v0.6.21
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[INFO] [stderr]     Checking rand_core v0.5.1
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[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 bitmaps v2.0.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]    Compiling libssh2-sys v0.2.16
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking flexi_logger v0.14.8
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking ignore v0.4.12
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]     Checking toml_edit v0.1.5
[INFO] [stderr]     Checking git2 v0.11.0
[INFO] [stderr]    Compiling structopt-derive v0.4.5
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking git2-curl v0.12.0
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking structopt v0.3.12
[INFO] [stderr]     Checking h2 v0.2.2
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking hyper v0.13.3
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking cargo-platform v0.1.1
[INFO] [stderr]     Checking serde_ignored v0.1.1
[INFO] [stderr]     Checking rustfix v0.5.0
[INFO] [stderr]     Checking crates-io v0.31.0
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]     Checking cargo v0.43.1
[INFO] [stderr]  Documenting cargo-unleash v1.0.0-alpha.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 46s
[INFO] running `Command { std: "docker" "inspect" "09318cfee20db38dd1a88d1ac6177c82619a84872e135106600544e8bfbba50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09318cfee20db38dd1a88d1ac6177c82619a84872e135106600544e8bfbba50e", kill_on_drop: false }`
[INFO] [stdout] 09318cfee20db38dd1a88d1ac6177c82619a84872e135106600544e8bfbba50e