[INFO] cloning repository https://github.com/nishiurahiroki/hello-rust-yew
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nishiurahiroki/hello-rust-yew" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnishiurahiroki%2Fhello-rust-yew", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnishiurahiroki%2Fhello-rust-yew'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6713f695b1697efada709d3ad9874862602e0583
[INFO] documenting nishiurahiroki/hello-rust-yew against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnishiurahiroki%2Fhello-rust-yew" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nishiurahiroki/hello-rust-yew on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nishiurahiroki/hello-rust-yew
[INFO] finished tweaking git repo https://github.com/nishiurahiroki/hello-rust-yew
[INFO] tweaked toml for git repo https://github.com/nishiurahiroki/hello-rust-yew written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nishiurahiroki/hello-rust-yew already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] fbff7f206acfbf77de35de8a65918bd9df90a35a3fcd3b9b6cd67b959724d2ac
[INFO] running `Command { std: "docker" "start" "-a" "fbff7f206acfbf77de35de8a65918bd9df90a35a3fcd3b9b6cd67b959724d2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbff7f206acfbf77de35de8a65918bd9df90a35a3fcd3b9b6cd67b959724d2ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbff7f206acfbf77de35de8a65918bd9df90a35a3fcd3b9b6cd67b959724d2ac", kill_on_drop: false }`
[INFO] [stdout] fbff7f206acfbf77de35de8a65918bd9df90a35a3fcd3b9b6cd67b959724d2ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6459d92d307ad57dd54a031f5c0e41bacd3d931f3d5297ca1bd0df73ad4e70f
[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" "f6459d92d307ad57dd54a031f5c0e41bacd3d931f3d5297ca1bd0df73ad4e70f", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdweb v0.4.8
[INFO] [stderr]     Checking discard v1.0.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling serde v1.0.75
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking http v0.1.10
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.75
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]    Compiling stdweb-derive v0.4.0
[INFO] [stderr]     Checking yew v0.5.0 (https://github.com/DenisKolodin/yew.git?rev=49319b8c02a8eeb15ed4c8a8761f83adcee856b0#49319b8c)
[INFO] [stderr]  Documenting hello-rust-yew v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.34s
[INFO] running `Command { std: "docker" "inspect" "f6459d92d307ad57dd54a031f5c0e41bacd3d931f3d5297ca1bd0df73ad4e70f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6459d92d307ad57dd54a031f5c0e41bacd3d931f3d5297ca1bd0df73ad4e70f", kill_on_drop: false }`
[INFO] [stdout] f6459d92d307ad57dd54a031f5c0e41bacd3d931f3d5297ca1bd0df73ad4e70f