[INFO] crate rack 0.0.1 is already in cache
[INFO] extracting crate rack 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/rack/0.0.1
[INFO] extracting crate rack 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rack/0.0.1
[INFO] validating manifest of rack-0.0.1 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 rack-0.0.1 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 rack-0.0.1
[INFO] finished frobbing rack-0.0.1
[INFO] frobbed toml for rack-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rack/0.0.1/Cargo.toml
[INFO] started frobbing rack-0.0.1
[INFO] finished frobbing rack-0.0.1
[INFO] frobbed toml for rack-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rack/0.0.1/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing rack-0.0.1 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-1/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/rack/0.0.1:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 8579be3f0aa78f2bb59abfded470c13fbf205da25b01f71c09209913139aafd2
[INFO] running `"docker" "start" "-a" "8579be3f0aa78f2bb59abfded470c13fbf205da25b01f71c09209913139aafd2"`
[INFO] [stderr]    Compiling rack v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `"docker" "inspect" "8579be3f0aa78f2bb59abfded470c13fbf205da25b01f71c09209913139aafd2"`
[INFO] running `"docker" "rm" "-f" "8579be3f0aa78f2bb59abfded470c13fbf205da25b01f71c09209913139aafd2"`
[INFO] [stdout] 8579be3f0aa78f2bb59abfded470c13fbf205da25b01f71c09209913139aafd2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/rack/0.0.1:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] e9cdbf41c2c8c366545083dd8fb62636b4b5c8da7d4874eae434b3bcdfd2b2a5
[INFO] running `"docker" "start" "-a" "e9cdbf41c2c8c366545083dd8fb62636b4b5c8da7d4874eae434b3bcdfd2b2a5"`
[INFO] [stderr]    Compiling rack v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "e9cdbf41c2c8c366545083dd8fb62636b4b5c8da7d4874eae434b3bcdfd2b2a5"`
[INFO] running `"docker" "rm" "-f" "e9cdbf41c2c8c366545083dd8fb62636b4b5c8da7d4874eae434b3bcdfd2b2a5"`
[INFO] [stdout] e9cdbf41c2c8c366545083dd8fb62636b4b5c8da7d4874eae434b3bcdfd2b2a5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/rack/0.0.1:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 9d304b7e7a208776b9a67767e38d072f7c7ccc5032d077ca1a7ea575a6f5ae49
[INFO] running `"docker" "start" "-a" "9d304b7e7a208776b9a67767e38d072f7c7ccc5032d077ca1a7ea575a6f5ae49"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rack-cd8081c1f8798e11
[INFO] [stderr]    Doc-tests rack
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[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" "9d304b7e7a208776b9a67767e38d072f7c7ccc5032d077ca1a7ea575a6f5ae49"`
[INFO] running `"docker" "rm" "-f" "9d304b7e7a208776b9a67767e38d072f7c7ccc5032d077ca1a7ea575a6f5ae49"`
[INFO] [stdout] 9d304b7e7a208776b9a67767e38d072f7c7ccc5032d077ca1a7ea575a6f5ae49