[INFO] updating cached repository saschagrunert/dfc-1
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/saschagrunert/dfc-1
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/saschagrunert/dfc-1" "work/ex/beta-1.38-1/sources/1.37.0/gh/saschagrunert/dfc-1"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/saschagrunert/dfc-1'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/saschagrunert/dfc-1" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saschagrunert/dfc-1"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saschagrunert/dfc-1'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c4425a40147dd952de26bf40005cd1f4728c130b
[INFO] sha for GitHub repo saschagrunert/dfc-1: c4425a40147dd952de26bf40005cd1f4728c130b
[INFO] validating manifest of saschagrunert/dfc-1 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 saschagrunert/dfc-1 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 saschagrunert/dfc-1
[INFO] finished frobbing saschagrunert/dfc-1
[INFO] frobbed toml for saschagrunert/dfc-1 written to work/ex/beta-1.38-1/sources/1.37.0/gh/saschagrunert/dfc-1/Cargo.toml
[INFO] started frobbing saschagrunert/dfc-1
[INFO] finished frobbing saschagrunert/dfc-1
[INFO] frobbed toml for saschagrunert/dfc-1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saschagrunert/dfc-1/Cargo.toml
[INFO] crate saschagrunert/dfc-1 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 saschagrunert/dfc-1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/saschagrunert/dfc-1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f34638e802a616df565b6acd23199e48f44b57b8a50d0091a8406c1d81554151
[INFO] running `"docker" "start" "-a" "f34638e802a616df565b6acd23199e48f44b57b8a50d0091a8406c1d81554151"`
[INFO] [stderr]    Compiling crc v1.4.0
[INFO] [stderr]    Compiling dfc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `"docker" "inspect" "f34638e802a616df565b6acd23199e48f44b57b8a50d0091a8406c1d81554151"`
[INFO] running `"docker" "rm" "-f" "f34638e802a616df565b6acd23199e48f44b57b8a50d0091a8406c1d81554151"`
[INFO] [stdout] f34638e802a616df565b6acd23199e48f44b57b8a50d0091a8406c1d81554151
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/saschagrunert/dfc-1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d1ea4de48ac66d757dda086f0133154dda09429724f593a1268def54ae4c3a2a
[INFO] running `"docker" "start" "-a" "d1ea4de48ac66d757dda086f0133154dda09429724f593a1268def54ae4c3a2a"`
[INFO] [stderr]    Compiling dfc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `buf_ptr`
[INFO] [stderr]   --> examples/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let buf_ptr: *const u8 = buf.as_ptr();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_buf_ptr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "d1ea4de48ac66d757dda086f0133154dda09429724f593a1268def54ae4c3a2a"`
[INFO] running `"docker" "rm" "-f" "d1ea4de48ac66d757dda086f0133154dda09429724f593a1268def54ae4c3a2a"`
[INFO] [stdout] d1ea4de48ac66d757dda086f0133154dda09429724f593a1268def54ae4c3a2a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/saschagrunert/dfc-1:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 625b2fcc4a15b29bcf0387e3ef7217e24ad93683e5c735d06fff45c3cbcfd71f
[INFO] running `"docker" "start" "-a" "625b2fcc4a15b29bcf0387e3ef7217e24ad93683e5c735d06fff45c3cbcfd71f"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dfc-8f76b484feefdf99
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dfc
[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" "625b2fcc4a15b29bcf0387e3ef7217e24ad93683e5c735d06fff45c3cbcfd71f"`
[INFO] running `"docker" "rm" "-f" "625b2fcc4a15b29bcf0387e3ef7217e24ad93683e5c735d06fff45c3cbcfd71f"`
[INFO] [stdout] 625b2fcc4a15b29bcf0387e3ef7217e24ad93683e5c735d06fff45c3cbcfd71f