[INFO] crate cask 0.7.1 is already in cache
[INFO] extracting crate cask 0.7.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/cask/0.7.1
[INFO] extracting crate cask 0.7.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cask/0.7.1
[INFO] validating manifest of cask-0.7.1 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 cask-0.7.1 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 cask-0.7.1
[INFO] finished frobbing cask-0.7.1
[INFO] frobbed toml for cask-0.7.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/cask/0.7.1/Cargo.toml
[INFO] started frobbing cask-0.7.1
[INFO] finished frobbing cask-0.7.1
[INFO] frobbed toml for cask-0.7.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/cask/0.7.1/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 cask-0.7.1 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-7/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/cask/0.7.1:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 9aa6bab8e448d0e3cc2614d903b2258910a083eacd99066c44ae89c64be6d5df
[INFO] running `"docker" "start" "-a" "9aa6bab8e448d0e3cc2614d903b2258910a083eacd99066c44ae89c64be6d5df"`
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling xxhash-sys v0.1.0
[INFO] [stderr]    Compiling xxhash2 v0.1.0
[INFO] [stderr]    Compiling cask v0.7.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:83:32
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.82s
[INFO] running `"docker" "inspect" "9aa6bab8e448d0e3cc2614d903b2258910a083eacd99066c44ae89c64be6d5df"`
[INFO] running `"docker" "rm" "-f" "9aa6bab8e448d0e3cc2614d903b2258910a083eacd99066c44ae89c64be6d5df"`
[INFO] [stdout] 9aa6bab8e448d0e3cc2614d903b2258910a083eacd99066c44ae89c64be6d5df
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/cask/0.7.1:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3ca4e9160d4178be05f9b65f7e5464ace628aef6c363ac69e48c881df676a700
[INFO] running `"docker" "start" "-a" "3ca4e9160d4178be05f9b65f7e5464ace628aef6c363ac69e48c881df676a700"`
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling cask v0.7.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:83:32
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `"docker" "inspect" "3ca4e9160d4178be05f9b65f7e5464ace628aef6c363ac69e48c881df676a700"`
[INFO] running `"docker" "rm" "-f" "3ca4e9160d4178be05f9b65f7e5464ace628aef6c363ac69e48c881df676a700"`
[INFO] [stdout] 3ca4e9160d4178be05f9b65f7e5464ace628aef6c363ac69e48c881df676a700
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/cask/0.7.1:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 970266c37677b8ebc20bd8bda1929044468206b63531c331badc3366870c4c38
[INFO] running `"docker" "start" "-a" "970266c37677b8ebc20bd8bda1929044468206b63531c331badc3366870c4c38"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cask-0f7bd0382d6980a5
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test data::tests::test_deleted ... ok
[INFO] [stdout] test data::tests::test_serialization ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cask
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/cask.rs - cask::CaskOptions (line 175) ... ok
[INFO] [stdout] test src/lib.rs -  (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "970266c37677b8ebc20bd8bda1929044468206b63531c331badc3366870c4c38"`
[INFO] running `"docker" "rm" "-f" "970266c37677b8ebc20bd8bda1929044468206b63531c331badc3366870c4c38"`
[INFO] [stdout] 970266c37677b8ebc20bd8bda1929044468206b63531c331badc3366870c4c38