[INFO] cloning repository https://github.com/roller/ackreport
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roller/ackreport" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froller%2Fackreport", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froller%2Fackreport'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cdd96db5838d0da9060a2b476318bf2f6894c71f
[INFO] checking roller/ackreport against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froller%2Fackreport" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roller/ackreport on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/roller/ackreport
[INFO] finished tweaking git repo https://github.com/roller/ackreport
[INFO] tweaked toml for git repo https://github.com/roller/ackreport written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/roller/ackreport already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5f53c4262e64599da2e0849840904fd8e1e881e57955dbfae977e52f1dd3707
[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" "e5f53c4262e64599da2e0849840904fd8e1e881e57955dbfae977e52f1dd3707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5f53c4262e64599da2e0849840904fd8e1e881e57955dbfae977e52f1dd3707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5f53c4262e64599da2e0849840904fd8e1e881e57955dbfae977e52f1dd3707", kill_on_drop: false }`
[INFO] [stdout] e5f53c4262e64599da2e0849840904fd8e1e881e57955dbfae977e52f1dd3707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 556a3b9b7139c7c4d81e529dd9f77149732dab385c0dae48a8f541e43bb2a677
[INFO] running `Command { std: "docker" "start" "-a" "556a3b9b7139c7c4d81e529dd9f77149732dab385c0dae48a8f541e43bb2a677", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking duration-string v0.0.6
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking rustls-native-certs v0.4.0
[INFO] [stderr]     Checking ackreport v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.23s
[INFO] running `Command { std: "docker" "inspect" "556a3b9b7139c7c4d81e529dd9f77149732dab385c0dae48a8f541e43bb2a677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556a3b9b7139c7c4d81e529dd9f77149732dab385c0dae48a8f541e43bb2a677", kill_on_drop: false }`
[INFO] [stdout] 556a3b9b7139c7c4d81e529dd9f77149732dab385c0dae48a8f541e43bb2a677