[INFO] fetching crate kamadak-exif 0.5.2...
[INFO] documenting kamadak-exif-0.5.2 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate kamadak-exif 0.5.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate kamadak-exif 0.5.2 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kamadak-exif 0.5.2
[INFO] finished tweaking crates.io crate kamadak-exif 0.5.2
[INFO] tweaked toml for crates.io crate kamadak-exif 0.5.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate kamadak-exif 0.5.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mutate_once v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19913b985436e782644142e706eb295cf419545106e268c2e1fe36ba88976fa5
[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" "19913b985436e782644142e706eb295cf419545106e268c2e1fe36ba88976fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19913b985436e782644142e706eb295cf419545106e268c2e1fe36ba88976fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19913b985436e782644142e706eb295cf419545106e268c2e1fe36ba88976fa5", kill_on_drop: false }`
[INFO] [stdout] 19913b985436e782644142e706eb295cf419545106e268c2e1fe36ba88976fa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 674a643f0d48e30821eb321a4619f5d6a241fc6d4463761fddd63d27ec7fb036
[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" "674a643f0d48e30821eb321a4619f5d6a241fc6d4463761fddd63d27ec7fb036", kill_on_drop: false }`
[INFO] [stderr]     Checking mutate_once v0.1.1
[INFO] [stderr]  Documenting kamadak-exif v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "674a643f0d48e30821eb321a4619f5d6a241fc6d4463761fddd63d27ec7fb036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "674a643f0d48e30821eb321a4619f5d6a241fc6d4463761fddd63d27ec7fb036", kill_on_drop: false }`
[INFO] [stdout] 674a643f0d48e30821eb321a4619f5d6a241fc6d4463761fddd63d27ec7fb036
