[INFO] cloning repository https://github.com/Michael-F-Bryan/cxx-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Michael-F-Bryan/cxx-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Fcxx-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Fcxx-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6b31b08440e403b025b3fc17e2b019df9b1728d
[INFO] checking Michael-F-Bryan/cxx-experiment against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Fcxx-experiment" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Michael-F-Bryan/cxx-experiment on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Michael-F-Bryan/cxx-experiment
[INFO] finished tweaking git repo https://github.com/Michael-F-Bryan/cxx-experiment
[INFO] tweaked toml for git repo https://github.com/Michael-F-Bryan/cxx-experiment written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Michael-F-Bryan/cxx-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.7
[INFO] [stderr]   Downloaded winapi-util v0.1.3
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded anyhow v1.0.26
[INFO] [stderr]   Downloaded cc v1.0.50
[INFO] [stderr]   Downloaded syn v1.0.13
[INFO] [stderr]   Downloaded thiserror-impl v1.0.9
[INFO] [stderr]   Downloaded thiserror v1.0.9
[INFO] [stderr]   Downloaded codespan v0.7.0
[INFO] [stderr]   Downloaded cxxbridge-macro v0.1.0
[INFO] [stderr]   Downloaded cxx v0.1.0
[INFO] [stderr]   Downloaded codespan-reporting v0.7.0
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc3c0bcea7c8dca928152641e9ac10b96007ee94ae41192d9a105869031e3344
[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" "dc3c0bcea7c8dca928152641e9ac10b96007ee94ae41192d9a105869031e3344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc3c0bcea7c8dca928152641e9ac10b96007ee94ae41192d9a105869031e3344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc3c0bcea7c8dca928152641e9ac10b96007ee94ae41192d9a105869031e3344", kill_on_drop: false }`
[INFO] [stdout] dc3c0bcea7c8dca928152641e9ac10b96007ee94ae41192d9a105869031e3344
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1b9d35fc2f830a714932c91cd5b5904a7d59391f25bab408561dbd359b34ee4
[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" "a1b9d35fc2f830a714932c91cd5b5904a7d59391f25bab408561dbd359b34ee4", kill_on_drop: false }`
[INFO] [stderr]     Checking cxx-experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "a1b9d35fc2f830a714932c91cd5b5904a7d59391f25bab408561dbd359b34ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b9d35fc2f830a714932c91cd5b5904a7d59391f25bab408561dbd359b34ee4", kill_on_drop: false }`
[INFO] [stdout] a1b9d35fc2f830a714932c91cd5b5904a7d59391f25bab408561dbd359b34ee4