[INFO] cloning repository https://github.com/ceyhunsony/rustffitest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ceyhunsony/rustffitest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fceyhunsony%2Frustffitest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fceyhunsony%2Frustffitest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76879913d1fc51f82f732ffd6c1f2409c38233cf
[INFO] testing ceyhunsony/rustffitest against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fceyhunsony%2Frustffitest" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ceyhunsony/rustffitest on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ceyhunsony/rustffitest
[INFO] finished tweaking git repo https://github.com/ceyhunsony/rustffitest
[INFO] tweaked toml for git repo https://github.com/ceyhunsony/rustffitest written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ceyhunsony/rustffitest already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 69b53dfd95826ff30d91cfcae17a231398c2deec05dcd097b67f882729a62099
[INFO] running `Command { std: "docker" "start" "-a" "69b53dfd95826ff30d91cfcae17a231398c2deec05dcd097b67f882729a62099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69b53dfd95826ff30d91cfcae17a231398c2deec05dcd097b67f882729a62099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69b53dfd95826ff30d91cfcae17a231398c2deec05dcd097b67f882729a62099", kill_on_drop: false }`
[INFO] [stdout] 69b53dfd95826ff30d91cfcae17a231398c2deec05dcd097b67f882729a62099
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 0d9a00f6780ebd39e5b090114098439a85c57c597fc7a4d0c733ea34be3e308c
[INFO] running `Command { std: "docker" "start" "-a" "0d9a00f6780ebd39e5b090114098439a85c57c597fc7a4d0c733ea34be3e308c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustffitest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stdout]  --> src/lib.rs:4:48
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub extern fn testing_array(len: usize, input: &[u8]) -> i32 {
[INFO] [stdout]   |                                                ^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = help: consider using a raw pointer instead
[INFO] [stdout]   = note: slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "0d9a00f6780ebd39e5b090114098439a85c57c597fc7a4d0c733ea34be3e308c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9a00f6780ebd39e5b090114098439a85c57c597fc7a4d0c733ea34be3e308c", kill_on_drop: false }`
[INFO] [stdout] 0d9a00f6780ebd39e5b090114098439a85c57c597fc7a4d0c733ea34be3e308c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 320e6d1333e11c1ea1a9bfe4d7890164afe89f161078dbca14583d8b8b961cbd
[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" "320e6d1333e11c1ea1a9bfe4d7890164afe89f161078dbca14583d8b8b961cbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustffitest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stdout]  --> src/lib.rs:4:48
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub extern fn testing_array(len: usize, input: &[u8]) -> i32 {
[INFO] [stdout]   |                                                ^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = help: consider using a raw pointer instead
[INFO] [stdout]   = note: slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "320e6d1333e11c1ea1a9bfe4d7890164afe89f161078dbca14583d8b8b961cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320e6d1333e11c1ea1a9bfe4d7890164afe89f161078dbca14583d8b8b961cbd", kill_on_drop: false }`
[INFO] [stdout] 320e6d1333e11c1ea1a9bfe4d7890164afe89f161078dbca14583d8b8b961cbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 20e82e00558336b46ae8cd4feec66938c1f55ee3ba830b5c4a9be6fbbc75cc11
[INFO] running `Command { std: "docker" "start" "-a" "20e82e00558336b46ae8cd4feec66938c1f55ee3ba830b5c4a9be6fbbc75cc11", kill_on_drop: false }`
[INFO] [stderr] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stderr]  --> src/lib.rs:4:48
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub extern fn testing_array(len: usize, input: &[u8]) -> i32 {
[INFO] [stderr]   |                                                ^^^^^ not FFI-safe
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]   = help: consider using a raw pointer instead
[INFO] [stderr]   = note: slices have no C equivalent
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustffitest-5db6c5c818f8c6ca
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "20e82e00558336b46ae8cd4feec66938c1f55ee3ba830b5c4a9be6fbbc75cc11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20e82e00558336b46ae8cd4feec66938c1f55ee3ba830b5c4a9be6fbbc75cc11", kill_on_drop: false }`
[INFO] [stdout] 20e82e00558336b46ae8cd4feec66938c1f55ee3ba830b5c4a9be6fbbc75cc11