[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-1.38-1/sources/1.37.0/gh/spacekookie/simple-rust-ffi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/spacekookie/simple-rust-ffi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/spacekookie/simple-rust-ffi" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/spacekookie/simple-rust-ffi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of spacekookie/simple-rust-ffi on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing spacekookie/simple-rust-ffi against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a5cc3d1f7c5f594e0e2db82a034682bad185e2f7646030d09cf38581963aaf99
[INFO] running `"docker" "start" "-a" "a5cc3d1f7c5f594e0e2db82a034682bad185e2f7646030d09cf38581963aaf99"`
[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 5.54s
[INFO] running `"docker" "inspect" "a5cc3d1f7c5f594e0e2db82a034682bad185e2f7646030d09cf38581963aaf99"`
[INFO] running `"docker" "rm" "-f" "a5cc3d1f7c5f594e0e2db82a034682bad185e2f7646030d09cf38581963aaf99"`
[INFO] [stdout] a5cc3d1f7c5f594e0e2db82a034682bad185e2f7646030d09cf38581963aaf99
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 09301ea4736d84c08efbae05d59ce77787f4477e3e230d598aefcaf91fde1a63
[INFO] running `"docker" "start" "-a" "09301ea4736d84c08efbae05d59ce77787f4477e3e230d598aefcaf91fde1a63"`
[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 0.75s
[INFO] running `"docker" "inspect" "09301ea4736d84c08efbae05d59ce77787f4477e3e230d598aefcaf91fde1a63"`
[INFO] running `"docker" "rm" "-f" "09301ea4736d84c08efbae05d59ce77787f4477e3e230d598aefcaf91fde1a63"`
[INFO] [stdout] 09301ea4736d84c08efbae05d59ce77787f4477e3e230d598aefcaf91fde1a63
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1a587319831df50f99c03ceec04b1ab186bce0f73f11f13b952836c6a972657e
[INFO] running `"docker" "start" "-a" "1a587319831df50f99c03ceec04b1ab186bce0f73f11f13b952836c6a972657e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/greeter-7b67560af869f382
[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" "1a587319831df50f99c03ceec04b1ab186bce0f73f11f13b952836c6a972657e"`
[INFO] running `"docker" "rm" "-f" "1a587319831df50f99c03ceec04b1ab186bce0f73f11f13b952836c6a972657e"`
[INFO] [stdout] 1a587319831df50f99c03ceec04b1ab186bce0f73f11f13b952836c6a972657e