[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 beta-2021-01-01 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-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/ceyhunsony/rustffitest on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-6/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d39a622066d30cad37a16b0f2b7c13d8dc33dca12b79a189bc76be29ddd5d604
[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" "d39a622066d30cad37a16b0f2b7c13d8dc33dca12b79a189bc76be29ddd5d604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d39a622066d30cad37a16b0f2b7c13d8dc33dca12b79a189bc76be29ddd5d604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d39a622066d30cad37a16b0f2b7c13d8dc33dca12b79a189bc76be29ddd5d604", kill_on_drop: false }`
[INFO] [stdout] d39a622066d30cad37a16b0f2b7c13d8dc33dca12b79a189bc76be29ddd5d604
[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=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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7120f37bbe2f7af0c4c97ee411503bc1a53896e9ab6503998a0aedcd9a74757
[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" "b7120f37bbe2f7af0c4c97ee411503bc1a53896e9ab6503998a0aedcd9a74757", 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 1.16s
[INFO] running `Command { std: "docker" "inspect" "b7120f37bbe2f7af0c4c97ee411503bc1a53896e9ab6503998a0aedcd9a74757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7120f37bbe2f7af0c4c97ee411503bc1a53896e9ab6503998a0aedcd9a74757", kill_on_drop: false }`
[INFO] [stdout] b7120f37bbe2f7af0c4c97ee411503bc1a53896e9ab6503998a0aedcd9a74757
[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=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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] 06f005f4e4db9992b8ceeba5a9b99dd32e8bd2735e8eca8a298adf36dd050b7a
[INFO] running `Command { std: "docker" "start" "-a" "06f005f4e4db9992b8ceeba5a9b99dd32e8bd2735e8eca8a298adf36dd050b7a", 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 1.02s
[INFO] running `Command { std: "docker" "inspect" "06f005f4e4db9992b8ceeba5a9b99dd32e8bd2735e8eca8a298adf36dd050b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f005f4e4db9992b8ceeba5a9b99dd32e8bd2735e8eca8a298adf36dd050b7a", kill_on_drop: false }`
[INFO] [stdout] 06f005f4e4db9992b8ceeba5a9b99dd32e8bd2735e8eca8a298adf36dd050b7a
[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=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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 988482f8080eb6837557d82f1a80105434e2ec73222ba96c8b913e843c1ac828
[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" "988482f8080eb6837557d82f1a80105434e2ec73222ba96c8b913e843c1ac828", 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 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustffitest-ae863f640e461937
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "988482f8080eb6837557d82f1a80105434e2ec73222ba96c8b913e843c1ac828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988482f8080eb6837557d82f1a80105434e2ec73222ba96c8b913e843c1ac828", kill_on_drop: false }`
[INFO] [stdout] 988482f8080eb6837557d82f1a80105434e2ec73222ba96c8b913e843c1ac828