[INFO] cloning repository https://github.com/MegatonHammer/linkle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MegatonHammer/linkle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMegatonHammer%2Flinkle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMegatonHammer%2Flinkle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8927387cca1b55c772bce3d7ce2baa92e11d806
[INFO] documenting MegatonHammer/linkle 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%2FMegatonHammer%2Flinkle" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MegatonHammer/linkle 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/MegatonHammer/linkle
[INFO] finished tweaking git repo https://github.com/MegatonHammer/linkle
[INFO] tweaked toml for git repo https://github.com/MegatonHammer/linkle written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/MegatonHammer/linkle 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f17592720fee09687de0a4bfdd1f737d34f6b464d3115308def6c08e8df63c7c
[INFO] running `Command { std: "docker" "start" "-a" "f17592720fee09687de0a4bfdd1f737d34f6b464d3115308def6c08e8df63c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f17592720fee09687de0a4bfdd1f737d34f6b464d3115308def6c08e8df63c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f17592720fee09687de0a4bfdd1f737d34f6b464d3115308def6c08e8df63c7c", kill_on_drop: false }`
[INFO] [stdout] f17592720fee09687de0a4bfdd1f737d34f6b464d3115308def6c08e8df63c7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 07d548157bad8094b85b0d101fecbf78b3a6b721db6fb419da65117f54270da0
[INFO] running `Command { std: "docker" "start" "-a" "07d548157bad8094b85b0d101fecbf78b3a6b721db6fb419da65117f54270da0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking opaque-debug v0.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking byte-tools v0.3.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking bit_field v0.10.0
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]     Checking blz-nx v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]     Checking block-padding v0.1.2
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking dbl v0.2.0
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]     Checking digest v0.7.5
[INFO] [stderr]     Checking aes-soft v0.3.2
[INFO] [stderr]     Checking block-modes v0.2.0
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking cmac v0.2.0
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling cargo_metadata v0.5.8
[INFO] [stderr]    Compiling skeptic v0.13.3
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]  Documenting linkle v0.2.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.17s
[INFO] running `Command { std: "docker" "inspect" "07d548157bad8094b85b0d101fecbf78b3a6b721db6fb419da65117f54270da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d548157bad8094b85b0d101fecbf78b3a6b721db6fb419da65117f54270da0", kill_on_drop: false }`
[INFO] [stdout] 07d548157bad8094b85b0d101fecbf78b3a6b721db6fb419da65117f54270da0