[INFO] fetching crate promptress 0.2.2...
[INFO] documenting promptress-0.2.2 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate promptress 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate promptress 0.2.2 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 promptress 0.2.2
[INFO] finished tweaking crates.io crate promptress 0.2.2
[INFO] tweaked toml for crates.io crate promptress 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate promptress 0.2.2 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 if_chain v1.0.0
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded termion v1.5.5
[INFO] [stderr]   Downloaded libgit2-sys v0.12.11+1.0.1
[INFO] [stderr]   Downloaded git2 v0.13.9
[INFO] [stderr]   Downloaded libz-sys v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1d413477f20cbbd375ac10cec9c0b788407076d79334b220ac7eabb13c4f7366
[INFO] running `Command { std: "docker" "start" "-a" "1d413477f20cbbd375ac10cec9c0b788407076d79334b220ac7eabb13c4f7366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d413477f20cbbd375ac10cec9c0b788407076d79334b220ac7eabb13c4f7366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d413477f20cbbd375ac10cec9c0b788407076d79334b220ac7eabb13c4f7366", kill_on_drop: false }`
[INFO] [stdout] 1d413477f20cbbd375ac10cec9c0b788407076d79334b220ac7eabb13c4f7366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 5bab959f29e152f343412ee30d04cdf286bb2a83f2027071e4d39d6511fe8d1c
[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" "5bab959f29e152f343412ee30d04cdf286bb2a83f2027071e4d39d6511fe8d1c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling libz-sys v1.1.0
[INFO] [stderr]    Compiling libgit2-sys v0.12.11+1.0.1
[INFO] [stderr]     Checking git2 v0.13.9
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]  Documenting promptress v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.00s
[INFO] running `Command { std: "docker" "inspect" "5bab959f29e152f343412ee30d04cdf286bb2a83f2027071e4d39d6511fe8d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bab959f29e152f343412ee30d04cdf286bb2a83f2027071e4d39d6511fe8d1c", kill_on_drop: false }`
[INFO] [stdout] 5bab959f29e152f343412ee30d04cdf286bb2a83f2027071e4d39d6511fe8d1c
