[INFO] fetching crate quirc 0.0.1...
[INFO] documenting quirc-0.0.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate quirc 0.0.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate quirc 0.0.1 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 quirc 0.0.1
[INFO] finished tweaking crates.io crate quirc 0.0.1
[INFO] tweaked toml for crates.io crate quirc 0.0.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qrcode v0.5.0
[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] 373d96141ff5938dacc932431b81ac43b7a0a5599eaff2f2fcadc80638ce5a91
[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" "373d96141ff5938dacc932431b81ac43b7a0a5599eaff2f2fcadc80638ce5a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "373d96141ff5938dacc932431b81ac43b7a0a5599eaff2f2fcadc80638ce5a91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "373d96141ff5938dacc932431b81ac43b7a0a5599eaff2f2fcadc80638ce5a91", kill_on_drop: false }`
[INFO] [stdout] 373d96141ff5938dacc932431b81ac43b7a0a5599eaff2f2fcadc80638ce5a91
[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] bbe5bd8100ed948379b87c386e8b3c9abaa4e97536c78f6fd8b93aac9d04211d
[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" "bbe5bd8100ed948379b87c386e8b3c9abaa4e97536c78f6fd8b93aac9d04211d", kill_on_drop: false }`
[INFO] [stderr]    Compiling quirc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: /opt/rustwide/workdir/c/decode.c: In function 'decode_payload':
[INFO] [stderr] warning: /opt/rustwide/workdir/c/decode.c:877:24: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
[INFO] [stderr] warning:   877 |  if (data->payload_len >= sizeof(data->payload))
[INFO] [stderr] warning:       |                        ^~
[INFO] [stderr] warning: /opt/rustwide/workdir/c/identify.c: In function 'area_count':
[INFO] [stderr] warning: /opt/rustwide/workdir/c/identify.c:233:45: warning: unused parameter 'y' [-Wunused-parameter]
[INFO] [stderr] warning:   233 | static void area_count(void *user_data, int y, int left, int right)
[INFO] [stderr] warning:       |                                         ~~~~^
[INFO] [stderr]  Documenting quirc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `Command { std: "docker" "inspect" "bbe5bd8100ed948379b87c386e8b3c9abaa4e97536c78f6fd8b93aac9d04211d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe5bd8100ed948379b87c386e8b3c9abaa4e97536c78f6fd8b93aac9d04211d", kill_on_drop: false }`
[INFO] [stdout] bbe5bd8100ed948379b87c386e8b3c9abaa4e97536c78f6fd8b93aac9d04211d