[INFO] cloning repository https://github.com/sile/plumtuna
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sile/plumtuna" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36db99a3e1a0a7b4a784c6f458905f6ba2d9d351
[INFO] checking sile/plumtuna against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fplumtuna" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sile/plumtuna 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/sile/plumtuna
[INFO] finished tweaking git repo https://github.com/sile/plumtuna
[INFO] tweaked toml for git repo https://github.com/sile/plumtuna written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/sile/plumtuna 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] 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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 650ff1418349f3470f46eb9d5c32431d4890afaa95b37f77eb50bb2dae444a4b
[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" "650ff1418349f3470f46eb9d5c32431d4890afaa95b37f77eb50bb2dae444a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "650ff1418349f3470f46eb9d5c32431d4890afaa95b37f77eb50bb2dae444a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "650ff1418349f3470f46eb9d5c32431d4890afaa95b37f77eb50bb2dae444a4b", kill_on_drop: false }`
[INFO] [stdout] 650ff1418349f3470f46eb9d5c32431d4890afaa95b37f77eb50bb2dae444a4b
[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" "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] 8fd1b5def7ac446b079b4edae5616d79441d676219a1d37988c12add42ae4a49
[INFO] running `Command { std: "docker" "start" "-a" "8fd1b5def7ac446b079b4edae5616d79441d676219a1d37988c12add42ae4a49", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking atomic_immut v0.1.4
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking factory v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking plumtree v0.1.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking hyparview v0.1.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking libflate v0.1.20
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking slog-scope v4.1.1
[INFO] [stderr]     Checking fibers v0.1.12
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking fibers_global v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]     Checking trackable v0.2.21
[INFO] [stderr]     Checking prometrics v0.1.11
[INFO] [stderr]     Checking bytecodec v0.4.11
[INFO] [stderr]     Checking sloggers v0.3.2
[INFO] [stderr]     Checking tasque v0.1.4
[INFO] [stderr]     Checking fibers_tasque v0.1.1
[INFO] [stderr]     Checking fibers_rpc v0.3.0
[INFO] [stderr]     Checking httpcodec v0.2.2
[INFO] [stderr]     Checking fibers_http_server v0.1.10
[INFO] [stderr]     Checking plumcast v0.1.5
[INFO] [stderr]     Checking plumtuna v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "8fd1b5def7ac446b079b4edae5616d79441d676219a1d37988c12add42ae4a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd1b5def7ac446b079b4edae5616d79441d676219a1d37988c12add42ae4a49", kill_on_drop: false }`
[INFO] [stdout] 8fd1b5def7ac446b079b4edae5616d79441d676219a1d37988c12add42ae4a49