[INFO] updating cached repository spacekookie/simple-rust-ffi
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/spacekookie/simple-rust-ffi
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/spacekookie/simple-rust-ffi" "work/ex/beta-1.37-6/sources/1.36.0/gh/spacekookie/simple-rust-ffi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/spacekookie/simple-rust-ffi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/spacekookie/simple-rust-ffi" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/simple-rust-ffi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/simple-rust-ffi'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 958cc4c19379f8b2d2a0315b2452d81672960e3d
[INFO] sha for GitHub repo spacekookie/simple-rust-ffi: 958cc4c19379f8b2d2a0315b2452d81672960e3d
[INFO] validating manifest of spacekookie/simple-rust-ffi on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of spacekookie/simple-rust-ffi on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing spacekookie/simple-rust-ffi
[INFO] finished frobbing spacekookie/simple-rust-ffi
[INFO] frobbed toml for spacekookie/simple-rust-ffi written to work/ex/beta-1.37-6/sources/1.36.0/gh/spacekookie/simple-rust-ffi/Cargo.toml
[INFO] started frobbing spacekookie/simple-rust-ffi
[INFO] finished frobbing spacekookie/simple-rust-ffi
[INFO] frobbed toml for spacekookie/simple-rust-ffi written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/simple-rust-ffi/Cargo.toml
[INFO] crate spacekookie/simple-rust-ffi already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing spacekookie/simple-rust-ffi against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/simple-rust-ffi:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 64124ab7a405aa8edb4423ff36b35c2a938c32f2ecf33e0020ba082d120f3076
[INFO] running `"docker" "start" "-a" "64124ab7a405aa8edb4423ff36b35c2a938c32f2ecf33e0020ba082d120f3076"`
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling greeter v0.1.0 (/opt/crater/workdir)
[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]     Finished dev [unoptimized + debuginfo] target(s) in 7.23s
[INFO] running `"docker" "inspect" "64124ab7a405aa8edb4423ff36b35c2a938c32f2ecf33e0020ba082d120f3076"`
[INFO] running `"docker" "rm" "-f" "64124ab7a405aa8edb4423ff36b35c2a938c32f2ecf33e0020ba082d120f3076"`
[INFO] [stdout] 64124ab7a405aa8edb4423ff36b35c2a938c32f2ecf33e0020ba082d120f3076
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/simple-rust-ffi:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3e6fc2d9cc6bc91541fcf9f29ffad70a26e01342ef21af653484f3f2bfc7d117
[INFO] running `"docker" "start" "-a" "3e6fc2d9cc6bc91541fcf9f29ffad70a26e01342ef21af653484f3f2bfc7d117"`
[INFO] [stderr]    Compiling greeter v0.1.0 (/opt/crater/workdir)
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "3e6fc2d9cc6bc91541fcf9f29ffad70a26e01342ef21af653484f3f2bfc7d117"`
[INFO] running `"docker" "rm" "-f" "3e6fc2d9cc6bc91541fcf9f29ffad70a26e01342ef21af653484f3f2bfc7d117"`
[INFO] [stdout] 3e6fc2d9cc6bc91541fcf9f29ffad70a26e01342ef21af653484f3f2bfc7d117
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/spacekookie/simple-rust-ffi:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 7f807cd518493f1bf5c542dfb07a29ccb5517b6e00fe197ab9ad72b1085b4cf3
[INFO] running `"docker" "start" "-a" "7f807cd518493f1bf5c542dfb07a29ccb5517b6e00fe197ab9ad72b1085b4cf3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/greeter-0d21133f27454167
[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 `"docker" "inspect" "7f807cd518493f1bf5c542dfb07a29ccb5517b6e00fe197ab9ad72b1085b4cf3"`
[INFO] running `"docker" "rm" "-f" "7f807cd518493f1bf5c542dfb07a29ccb5517b6e00fe197ab9ad72b1085b4cf3"`
[INFO] [stdout] 7f807cd518493f1bf5c542dfb07a29ccb5517b6e00fe197ab9ad72b1085b4cf3