[INFO] cloning repository https://github.com/spacekookie/simple-rust-ffi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spacekookie/simple-rust-ffi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacekookie%2Fsimple-rust-ffi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacekookie%2Fsimple-rust-ffi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 958cc4c19379f8b2d2a0315b2452d81672960e3d
[INFO] testing spacekookie/simple-rust-ffi against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacekookie%2Fsimple-rust-ffi" "/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/spacekookie/simple-rust-ffi on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spacekookie/simple-rust-ffi
[INFO] finished tweaking git repo https://github.com/spacekookie/simple-rust-ffi
[INFO] tweaked toml for git repo https://github.com/spacekookie/simple-rust-ffi written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/spacekookie/simple-rust-ffi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cd28b8238d6f06a13812d17b8527b5cf8e9dc86aaa7e017465caa02d13d8251
[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" "0cd28b8238d6f06a13812d17b8527b5cf8e9dc86aaa7e017465caa02d13d8251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cd28b8238d6f06a13812d17b8527b5cf8e9dc86aaa7e017465caa02d13d8251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd28b8238d6f06a13812d17b8527b5cf8e9dc86aaa7e017465caa02d13d8251", kill_on_drop: false }`
[INFO] [stdout] 0cd28b8238d6f06a13812d17b8527b5cf8e9dc86aaa7e017465caa02d13d8251
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f795eef41267e56ccf400b7a4e49ed0febf43118de10770012cb5629357602c
[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" "3f795eef41267e56ccf400b7a4e49ed0febf43118de10770012cb5629357602c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling greeter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CStr`
[INFO] [stdout]  --> src/main.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::{CStr, CString};
[INFO] [stdout]   |                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `c_int`, `c_void`
[INFO] [stdout]  --> src/main.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::{c_char, c_int, c_void};
[INFO] [stdout]   |                            ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.88s
[INFO] running `Command { std: "docker" "inspect" "3f795eef41267e56ccf400b7a4e49ed0febf43118de10770012cb5629357602c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f795eef41267e56ccf400b7a4e49ed0febf43118de10770012cb5629357602c", kill_on_drop: false }`
[INFO] [stdout] 3f795eef41267e56ccf400b7a4e49ed0febf43118de10770012cb5629357602c
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a95912b9716bba5b0f4cec0fc83c2350dd1fda6763bcdfeae8c7f47f57922932
[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" "a95912b9716bba5b0f4cec0fc83c2350dd1fda6763bcdfeae8c7f47f57922932", kill_on_drop: false }`
[INFO] [stderr]    Compiling greeter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CStr`
[INFO] [stdout]  --> src/main.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ffi::{CStr, CString};
[INFO] [stdout]   |                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `c_int`, `c_void`
[INFO] [stdout]  --> src/main.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::raw::{c_char, c_int, c_void};
[INFO] [stdout]   |                            ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "a95912b9716bba5b0f4cec0fc83c2350dd1fda6763bcdfeae8c7f47f57922932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a95912b9716bba5b0f4cec0fc83c2350dd1fda6763bcdfeae8c7f47f57922932", kill_on_drop: false }`
[INFO] [stdout] a95912b9716bba5b0f4cec0fc83c2350dd1fda6763bcdfeae8c7f47f57922932
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 09acd2aae600c9e7e8178203d7090dc2ff0c8a9c041f6ad88f726410ddb48054
[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" "09acd2aae600c9e7e8178203d7090dc2ff0c8a9c041f6ad88f726410ddb48054", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `CStr`
[INFO] [stderr]  --> src/main.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ffi::{CStr, CString};
[INFO] [stderr]   |                ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `c_int`, `c_void`
[INFO] [stderr]  --> src/main.rs:2:28
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::os::raw::{c_char, c_int, c_void};
[INFO] [stderr]   |                            ^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/greeter-3d3c992a95ce5644
[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" "09acd2aae600c9e7e8178203d7090dc2ff0c8a9c041f6ad88f726410ddb48054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09acd2aae600c9e7e8178203d7090dc2ff0c8a9c041f6ad88f726410ddb48054", kill_on_drop: false }`
[INFO] [stdout] 09acd2aae600c9e7e8178203d7090dc2ff0c8a9c041f6ad88f726410ddb48054