[INFO] updating cached repository segfo/rust_c_ffi_sample
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/segfo/rust_c_ffi_sample
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/segfo/rust_c_ffi_sample" "work/ex/beta-1.38-1/sources/1.37.0/gh/segfo/rust_c_ffi_sample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/segfo/rust_c_ffi_sample'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/segfo/rust_c_ffi_sample" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/segfo/rust_c_ffi_sample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/segfo/rust_c_ffi_sample'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf59224db56640a2f9e46880dfc2c833dcb023f6
[INFO] sha for GitHub repo segfo/rust_c_ffi_sample: bf59224db56640a2f9e46880dfc2c833dcb023f6
[INFO] validating manifest of segfo/rust_c_ffi_sample 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 segfo/rust_c_ffi_sample 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 segfo/rust_c_ffi_sample
[INFO] finished frobbing segfo/rust_c_ffi_sample
[INFO] frobbed toml for segfo/rust_c_ffi_sample written to work/ex/beta-1.38-1/sources/1.37.0/gh/segfo/rust_c_ffi_sample/Cargo.toml
[INFO] started frobbing segfo/rust_c_ffi_sample
[INFO] finished frobbing segfo/rust_c_ffi_sample
[INFO] frobbed toml for segfo/rust_c_ffi_sample written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/segfo/rust_c_ffi_sample/Cargo.toml
[INFO] crate segfo/rust_c_ffi_sample 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing segfo/rust_c_ffi_sample 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-5/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/segfo/rust_c_ffi_sample:/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] a1d636d1092c9be99ed59069767e68e02903280eeaf347367101bf47b297a79c
[INFO] running `"docker" "start" "-a" "a1d636d1092c9be99ed59069767e68e02903280eeaf347367101bf47b297a79c"`
[INFO] [stderr]    Compiling c_wrapper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `"docker" "inspect" "a1d636d1092c9be99ed59069767e68e02903280eeaf347367101bf47b297a79c"`
[INFO] running `"docker" "rm" "-f" "a1d636d1092c9be99ed59069767e68e02903280eeaf347367101bf47b297a79c"`
[INFO] [stdout] a1d636d1092c9be99ed59069767e68e02903280eeaf347367101bf47b297a79c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/segfo/rust_c_ffi_sample:/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] 0a80e0ac035a85124786f2f1d06cc0e3b3b6f2885b76ddabdf9f13434cc6e60a
[INFO] running `"docker" "start" "-a" "0a80e0ac035a85124786f2f1d06cc0e3b3b6f2885b76ddabdf9f13434cc6e60a"`
[INFO] [stderr]    Compiling c_wrapper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "0a80e0ac035a85124786f2f1d06cc0e3b3b6f2885b76ddabdf9f13434cc6e60a"`
[INFO] running `"docker" "rm" "-f" "0a80e0ac035a85124786f2f1d06cc0e3b3b6f2885b76ddabdf9f13434cc6e60a"`
[INFO] [stdout] 0a80e0ac035a85124786f2f1d06cc0e3b3b6f2885b76ddabdf9f13434cc6e60a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/segfo/rust_c_ffi_sample:/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] 2a8368ca8f14a39964ad286776a3b3e350f6cac81c4ccafe48e7a912d20410bc
[INFO] running `"docker" "start" "-a" "2a8368ca8f14a39964ad286776a3b3e350f6cac81c4ccafe48e7a912d20410bc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/c_wrapper-9c78187db166bd3d
[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" "2a8368ca8f14a39964ad286776a3b3e350f6cac81c4ccafe48e7a912d20410bc"`
[INFO] running `"docker" "rm" "-f" "2a8368ca8f14a39964ad286776a3b3e350f6cac81c4ccafe48e7a912d20410bc"`
[INFO] [stdout] 2a8368ca8f14a39964ad286776a3b3e350f6cac81c4ccafe48e7a912d20410bc