[INFO] cloning repository https://github.com/wuminzhe/matching-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wuminzhe/matching-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwuminzhe%2Fmatching-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwuminzhe%2Fmatching-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c74254d0e4d972c8b6735cd068d5f349e92683c5
[INFO] documenting wuminzhe/matching-rs 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%2Fwuminzhe%2Fmatching-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wuminzhe/matching-rs 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/wuminzhe/matching-rs
[INFO] finished tweaking git repo https://github.com/wuminzhe/matching-rs
[INFO] tweaked toml for git repo https://github.com/wuminzhe/matching-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/wuminzhe/matching-rs 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 5aea187c0efc317c8af1031d62839028b1ef2bc1f61bfba69993ff57a6a42724
[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" "5aea187c0efc317c8af1031d62839028b1ef2bc1f61bfba69993ff57a6a42724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5aea187c0efc317c8af1031d62839028b1ef2bc1f61bfba69993ff57a6a42724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aea187c0efc317c8af1031d62839028b1ef2bc1f61bfba69993ff57a6a42724", kill_on_drop: false }`
[INFO] [stdout] 5aea187c0efc317c8af1031d62839028b1ef2bc1f61bfba69993ff57a6a42724
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 20006393f24003cf68723cb12f0966619f23d44b9b8f5d13c0c1429928ad9ee3
[INFO] running `Command { std: "docker" "start" "-a" "20006393f24003cf68723cb12f0966619f23d44b9b8f5d13c0c1429928ad9ee3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling autocfg v0.1.4
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[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking ucd-util v0.1.3
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[INFO] [stderr]    Compiling smallvec v0.6.10
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[INFO] [stderr]    Compiling openssl v0.10.23
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling mysql v16.0.2
[INFO] [stderr]     Checking bit-vec v0.5.1
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[INFO] [stderr]     Checking lazycell v1.2.1
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[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
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[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]    Compiling walkdir v2.2.8
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[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
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[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling stackvector v1.0.6
[INFO] [stderr]    Compiling lexical-core v0.4.2
[INFO] [stderr]    Compiling lexical v2.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling libgit2-sys v0.8.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling miniz-sys v0.1.12
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[INFO] [stderr]     Checking aho-corasick v0.7.4
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[INFO] [stderr]     Checking base64 v0.10.1
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[INFO] [stderr]     Checking input_buffer v0.2.0
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[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking twox-hash v1.4.2
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking bigdecimal v0.1.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.95
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling snafu-derive v0.4.1
[INFO] [stderr]     Checking snafu v0.4.1
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]    Compiling toml v0.5.1
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]     Checking amq-protocol-types v1.2.0
[INFO] [stderr]     Checking mysql_common v0.17.1
[INFO] [stderr]    Compiling git2 v0.9.1
[INFO] [stderr]     Checking amq-protocol-codegen v1.4.0
[INFO] [stderr]    Compiling built v0.3.1
[INFO] [stderr]    Compiling amiquip v0.3.0
[INFO] [stderr]    Compiling amq-protocol v1.4.0
[INFO] [stderr]  Documenting matching-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 43s
[INFO] running `Command { std: "docker" "inspect" "20006393f24003cf68723cb12f0966619f23d44b9b8f5d13c0c1429928ad9ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20006393f24003cf68723cb12f0966619f23d44b9b8f5d13c0c1429928ad9ee3", kill_on_drop: false }`
[INFO] [stdout] 20006393f24003cf68723cb12f0966619f23d44b9b8f5d13c0c1429928ad9ee3