[INFO] fetching crate slacs-core 0.0.0...
[INFO] documenting slacs-core-0.0.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate slacs-core 0.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate slacs-core 0.0.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slacs-core 0.0.0
[INFO] finished tweaking crates.io crate slacs-core 0.0.0
[INFO] tweaked toml for crates.io crate slacs-core 0.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-chain v0.2.2
[INFO] [stderr]   Downloaded gapbuffer v0.1.1
[INFO] [stderr]   Downloaded slog-json v0.7.0
[INFO] [stderr]   Downloaded slog-serde v0.7.0
[INFO] [stderr]   Downloaded slog-term v0.7.0
[INFO] [stderr]   Downloaded slog v0.7.0
[INFO] [stderr]   Downloaded xi-rope v0.1.1
[INFO] [stderr]   Downloaded xi-unicode v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dda24b7f9e0131e600a1ac6c430c3ff0ecc955f5996aa08304f7a325d01445c
[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" "9dda24b7f9e0131e600a1ac6c430c3ff0ecc955f5996aa08304f7a325d01445c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dda24b7f9e0131e600a1ac6c430c3ff0ecc955f5996aa08304f7a325d01445c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dda24b7f9e0131e600a1ac6c430c3ff0ecc955f5996aa08304f7a325d01445c", kill_on_drop: false }`
[INFO] [stdout] 9dda24b7f9e0131e600a1ac6c430c3ff0ecc955f5996aa08304f7a325d01445c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42bf9bbf4eda796c596a06ad9042a950c64f7a0cc21c4bfb740a004f70a853ba
[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" "42bf9bbf4eda796c596a06ad9042a950c64f7a0cc21c4bfb740a004f70a853ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking bytecount v0.1.7
[INFO] [stderr]     Checking ansi_term v0.7.5
[INFO] [stderr]     Checking xi-unicode v0.0.1
[INFO] [stderr]     Checking gapbuffer v0.1.1
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking xi-rope v0.1.1
[INFO] [stderr]     Checking error-chain v0.2.2
[INFO] [stderr]     Checking serde_json v0.7.4
[INFO] [stderr]     Checking slog v0.7.0
[INFO] [stderr]     Checking slog-serde v0.7.0
[INFO] [stderr]     Checking slog-term v0.7.0
[INFO] [stderr]     Checking slog-json v0.7.0
[INFO] [stderr]  Documenting slacs-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.36s
[INFO] running `Command { std: "docker" "inspect" "42bf9bbf4eda796c596a06ad9042a950c64f7a0cc21c4bfb740a004f70a853ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42bf9bbf4eda796c596a06ad9042a950c64f7a0cc21c4bfb740a004f70a853ba", kill_on_drop: false }`
[INFO] [stdout] 42bf9bbf4eda796c596a06ad9042a950c64f7a0cc21c4bfb740a004f70a853ba