[INFO] crate zstd-safe 1.4.12+zstd.1.4.2 is already in cache
[INFO] extracting crate zstd-safe 1.4.12+zstd.1.4.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/zstd-safe/1.4.12+zstd.1.4.2
[INFO] extracting crate zstd-safe 1.4.12+zstd.1.4.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/zstd-safe/1.4.12+zstd.1.4.2
[INFO] validating manifest of zstd-safe-1.4.12+zstd.1.4.2 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 zstd-safe-1.4.12+zstd.1.4.2 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 zstd-safe-1.4.12+zstd.1.4.2
[INFO] finished frobbing zstd-safe-1.4.12+zstd.1.4.2
[INFO] frobbed toml for zstd-safe-1.4.12+zstd.1.4.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/zstd-safe/1.4.12+zstd.1.4.2/Cargo.toml
[INFO] started frobbing zstd-safe-1.4.12+zstd.1.4.2
[INFO] finished frobbing zstd-safe-1.4.12+zstd.1.4.2
[INFO] frobbed toml for zstd-safe-1.4.12+zstd.1.4.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/zstd-safe/1.4.12+zstd.1.4.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] [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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing zstd-safe-1.4.12+zstd.1.4.2 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-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/zstd-safe/1.4.12+zstd.1.4.2:/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] 805bdd43c61060274ec1ef25e4872637475faeb8538716d5440b5d12d2d5f6a5
[INFO] running `"docker" "start" "-a" "805bdd43c61060274ec1ef25e4872637475faeb8538716d5440b5d12d2d5f6a5"`
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling zstd-sys v1.4.12+zstd.1.4.2
[INFO] [stderr]    Compiling zstd-safe v1.4.12+zstd.1.4.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `c_int`, `c_ulonglong`
[INFO] [stderr]   --> src/lib.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 | use libc::{c_int, c_ulonglong, c_void};
[INFO] [stderr]    |            ^^^^^  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.85s
[INFO] running `"docker" "inspect" "805bdd43c61060274ec1ef25e4872637475faeb8538716d5440b5d12d2d5f6a5"`
[INFO] running `"docker" "rm" "-f" "805bdd43c61060274ec1ef25e4872637475faeb8538716d5440b5d12d2d5f6a5"`
[INFO] [stdout] 805bdd43c61060274ec1ef25e4872637475faeb8538716d5440b5d12d2d5f6a5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/zstd-safe/1.4.12+zstd.1.4.2:/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] 48425b544d0054219baec55954ca41ff0b7adbaae068a023dba950a2ae292a7b
[INFO] running `"docker" "start" "-a" "48425b544d0054219baec55954ca41ff0b7adbaae068a023dba950a2ae292a7b"`
[INFO] [stderr]    Compiling zstd-safe v1.4.12+zstd.1.4.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `c_int`, `c_ulonglong`
[INFO] [stderr]   --> src/lib.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 41 | use libc::{c_int, c_ulonglong, c_void};
[INFO] [stderr]    |            ^^^^^  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "48425b544d0054219baec55954ca41ff0b7adbaae068a023dba950a2ae292a7b"`
[INFO] running `"docker" "rm" "-f" "48425b544d0054219baec55954ca41ff0b7adbaae068a023dba950a2ae292a7b"`
[INFO] [stdout] 48425b544d0054219baec55954ca41ff0b7adbaae068a023dba950a2ae292a7b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/zstd-safe/1.4.12+zstd.1.4.2:/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] 260f26ddca695eb2bdfaae76d63ddbf12c216d1c60c7cd7411c0afd2231a1177
[INFO] running `"docker" "start" "-a" "260f26ddca695eb2bdfaae76d63ddbf12c216d1c60c7cd7411c0afd2231a1177"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/zstd_safe-5bbb4e3c55c08997
[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] [stderr]    Doc-tests zstd-safe
[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" "260f26ddca695eb2bdfaae76d63ddbf12c216d1c60c7cd7411c0afd2231a1177"`
[INFO] running `"docker" "rm" "-f" "260f26ddca695eb2bdfaae76d63ddbf12c216d1c60c7cd7411c0afd2231a1177"`
[INFO] [stdout] 260f26ddca695eb2bdfaae76d63ddbf12c216d1c60c7cd7411c0afd2231a1177