[INFO] fetching crate qrrs 0.1.2...
[INFO] documenting qrrs-0.1.2 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate qrrs 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate qrrs 0.1.2 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 qrrs 0.1.2
[INFO] finished tweaking crates.io crate qrrs 0.1.2
[INFO] tweaked toml for crates.io crate qrrs 0.1.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate qrrs 0.1.2 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]     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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 2f41f619209fb3621adee82d0eb95a70c4af01ce2826e35bf07b75a7351a84a9
[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" "2f41f619209fb3621adee82d0eb95a70c4af01ce2826e35bf07b75a7351a84a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f41f619209fb3621adee82d0eb95a70c4af01ce2826e35bf07b75a7351a84a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f41f619209fb3621adee82d0eb95a70c4af01ce2826e35bf07b75a7351a84a9", kill_on_drop: false }`
[INFO] [stdout] 2f41f619209fb3621adee82d0eb95a70c4af01ce2826e35bf07b75a7351a84a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 74bfc7bccc77efdc883ed51c70ddf281120b49948200b83745d0a869c08a7900
[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" "74bfc7bccc77efdc883ed51c70ddf281120b49948200b83745d0a869c08a7900", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking qrcode v0.11.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking bardecoder v0.2.2
[INFO] [stderr]  Documenting qrrs v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.01s
[INFO] running `Command { std: "docker" "inspect" "74bfc7bccc77efdc883ed51c70ddf281120b49948200b83745d0a869c08a7900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74bfc7bccc77efdc883ed51c70ddf281120b49948200b83745d0a869c08a7900", kill_on_drop: false }`
[INFO] [stdout] 74bfc7bccc77efdc883ed51c70ddf281120b49948200b83745d0a869c08a7900
