[INFO] crate par 0.0.0 is already in cache
[INFO] extracting crate par 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/par/0.0.0
[INFO] extracting crate par 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/par/0.0.0
[INFO] validating manifest of par-0.0.0 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 par-0.0.0 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 par-0.0.0
[INFO] finished frobbing par-0.0.0
[INFO] frobbed toml for par-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/par/0.0.0/Cargo.toml
[INFO] started frobbing par-0.0.0
[INFO] finished frobbing par-0.0.0
[INFO] frobbed toml for par-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/par/0.0.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing par-0.0.0 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/par/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 46460ebfda9f9e3a92d5779ffd06644a069f47612493afbe3e54042d314395cf
[INFO] running `"docker" "start" "-a" "46460ebfda9f9e3a92d5779ffd06644a069f47612493afbe3e54042d314395cf"`
[INFO] [stderr]    Compiling par v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "46460ebfda9f9e3a92d5779ffd06644a069f47612493afbe3e54042d314395cf"`
[INFO] running `"docker" "rm" "-f" "46460ebfda9f9e3a92d5779ffd06644a069f47612493afbe3e54042d314395cf"`
[INFO] [stdout] 46460ebfda9f9e3a92d5779ffd06644a069f47612493afbe3e54042d314395cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/par/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 46bb3f6499b97a3c35d6d4e04b5847c6fc229ef3e92190e4c8e806e98eb99cbd
[INFO] running `"docker" "start" "-a" "46bb3f6499b97a3c35d6d4e04b5847c6fc229ef3e92190e4c8e806e98eb99cbd"`
[INFO] [stderr]    Compiling par v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "46bb3f6499b97a3c35d6d4e04b5847c6fc229ef3e92190e4c8e806e98eb99cbd"`
[INFO] running `"docker" "rm" "-f" "46bb3f6499b97a3c35d6d4e04b5847c6fc229ef3e92190e4c8e806e98eb99cbd"`
[INFO] [stdout] 46bb3f6499b97a3c35d6d4e04b5847c6fc229ef3e92190e4c8e806e98eb99cbd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/par/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 83f1370830b1b9050044148264c764589e68eb6ff9fd422426d42f5fab55afbb
[INFO] running `"docker" "start" "-a" "83f1370830b1b9050044148264c764589e68eb6ff9fd422426d42f5fab55afbb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/par-e52d4a343850aa42
[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" "83f1370830b1b9050044148264c764589e68eb6ff9fd422426d42f5fab55afbb"`
[INFO] running `"docker" "rm" "-f" "83f1370830b1b9050044148264c764589e68eb6ff9fd422426d42f5fab55afbb"`
[INFO] [stdout] 83f1370830b1b9050044148264c764589e68eb6ff9fd422426d42f5fab55afbb