[INFO] fetching crate qr2cairo 0.1.0...
[INFO] documenting qr2cairo-0.1.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate qr2cairo 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate qr2cairo 0.1.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qr2cairo 0.1.0
[INFO] finished tweaking crates.io crate qr2cairo 0.1.0
[INFO] tweaked toml for crates.io crate qr2cairo 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 512f6202d7a4b46835f3db4b03d74c9ab12182d720a9d9b940dcbd747d7fd8c4
[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" "512f6202d7a4b46835f3db4b03d74c9ab12182d720a9d9b940dcbd747d7fd8c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "512f6202d7a4b46835f3db4b03d74c9ab12182d720a9d9b940dcbd747d7fd8c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512f6202d7a4b46835f3db4b03d74c9ab12182d720a9d9b940dcbd747d7fd8c4", kill_on_drop: false }`
[INFO] [stdout] 512f6202d7a4b46835f3db4b03d74c9ab12182d720a9d9b940dcbd747d7fd8c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 063ce9feb4c1430747704ddcca0c919d6ae652d4b3e0a893378e516532840506
[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" "063ce9feb4c1430747704ddcca0c919d6ae652d4b3e0a893378e516532840506", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking qrcode v0.12.0
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling thiserror v1.0.21
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]  Documenting qr2cairo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.30s
[INFO] running `Command { std: "docker" "inspect" "063ce9feb4c1430747704ddcca0c919d6ae652d4b3e0a893378e516532840506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "063ce9feb4c1430747704ddcca0c919d6ae652d4b3e0a893378e516532840506", kill_on_drop: false }`
[INFO] [stdout] 063ce9feb4c1430747704ddcca0c919d6ae652d4b3e0a893378e516532840506
