[INFO] fetching crate background 0.0.0...
[INFO] extracting crate background 0.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/background/0.0.0
[INFO] extracting crate background 0.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/background/0.0.0
[INFO] validating manifest of background-0.0.0 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 background-0.0.0 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 background-0.0.0
[INFO] finished frobbing background-0.0.0
[INFO] frobbed toml for background-0.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/background/0.0.0/Cargo.toml
[INFO] started frobbing background-0.0.0
[INFO] finished frobbing background-0.0.0
[INFO] frobbed toml for background-0.0.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/background/0.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 background-0.0.0 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-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/background/0.0.0:/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] 56c6b463c6b8f1fcb9347f68238f73628cb57ee50412b6f3f9a223f01619e8a0
[INFO] running `"docker" "start" "-a" "56c6b463c6b8f1fcb9347f68238f73628cb57ee50412b6f3f9a223f01619e8a0"`
[INFO] [stderr]    Compiling background v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "56c6b463c6b8f1fcb9347f68238f73628cb57ee50412b6f3f9a223f01619e8a0"`
[INFO] running `"docker" "rm" "-f" "56c6b463c6b8f1fcb9347f68238f73628cb57ee50412b6f3f9a223f01619e8a0"`
[INFO] [stdout] 56c6b463c6b8f1fcb9347f68238f73628cb57ee50412b6f3f9a223f01619e8a0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/background/0.0.0:/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] 9523796b46152bd1116d91e8964f8ca6f6553a718ef7df98b629175c02fa8366
[INFO] running `"docker" "start" "-a" "9523796b46152bd1116d91e8964f8ca6f6553a718ef7df98b629175c02fa8366"`
[INFO] [stderr]    Compiling background v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "9523796b46152bd1116d91e8964f8ca6f6553a718ef7df98b629175c02fa8366"`
[INFO] running `"docker" "rm" "-f" "9523796b46152bd1116d91e8964f8ca6f6553a718ef7df98b629175c02fa8366"`
[INFO] [stdout] 9523796b46152bd1116d91e8964f8ca6f6553a718ef7df98b629175c02fa8366
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/background/0.0.0:/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] 112103a46ae18c32f4a6a0fd631e62d9bf8dd15841aec982b3c294d276d975e1
[INFO] running `"docker" "start" "-a" "112103a46ae18c32f4a6a0fd631e62d9bf8dd15841aec982b3c294d276d975e1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/background-274c0943c8f6a7d9
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests background
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "112103a46ae18c32f4a6a0fd631e62d9bf8dd15841aec982b3c294d276d975e1"`
[INFO] running `"docker" "rm" "-f" "112103a46ae18c32f4a6a0fd631e62d9bf8dd15841aec982b3c294d276d975e1"`
[INFO] [stdout] 112103a46ae18c32f4a6a0fd631e62d9bf8dd15841aec982b3c294d276d975e1