[INFO] cloning repository https://github.com/Sach97/rusty_ffi.dart
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sach97/rusty_ffi.dart" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSach97%2Frusty_ffi.dart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSach97%2Frusty_ffi.dart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2640bb15154fbc880fa07e489cccbf8062d37f0f
[INFO] checking Sach97/rusty_ffi.dart against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSach97%2Frusty_ffi.dart" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sach97/rusty_ffi.dart on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sach97/rusty_ffi.dart
[INFO] finished tweaking git repo https://github.com/Sach97/rusty_ffi.dart
[INFO] tweaked toml for git repo https://github.com/Sach97/rusty_ffi.dart written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Sach97/rusty_ffi.dart already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21b85b352192437cc2a1843adeffa9b8b49647b4ef47814af30fffe9b5e53765
[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" "21b85b352192437cc2a1843adeffa9b8b49647b4ef47814af30fffe9b5e53765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21b85b352192437cc2a1843adeffa9b8b49647b4ef47814af30fffe9b5e53765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b85b352192437cc2a1843adeffa9b8b49647b4ef47814af30fffe9b5e53765", kill_on_drop: false }`
[INFO] [stdout] 21b85b352192437cc2a1843adeffa9b8b49647b4ef47814af30fffe9b5e53765
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e9c1f4c74fce9d46bcc3580ef865e1e7bf6d7ea63b1f66f905ef6163a27b23f
[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" "7e9c1f4c74fce9d46bcc3580ef865e1e7bf6d7ea63b1f66f905ef6163a27b23f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking claxon v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking matrixmultiply v0.2.2
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking lewton v0.9.4
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking alga v0.9.1
[INFO] [stderr]     Checking minimp3 v0.3.3
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking rodio v0.9.0
[INFO] [stderr]     Checking rusty_ffi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.00s
[INFO] running `Command { std: "docker" "inspect" "7e9c1f4c74fce9d46bcc3580ef865e1e7bf6d7ea63b1f66f905ef6163a27b23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e9c1f4c74fce9d46bcc3580ef865e1e7bf6d7ea63b1f66f905ef6163a27b23f", kill_on_drop: false }`
[INFO] [stdout] 7e9c1f4c74fce9d46bcc3580ef865e1e7bf6d7ea63b1f66f905ef6163a27b23f