[INFO] crate cask 0.7.1 is already in cache
[INFO] extracting crate cask 0.7.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/cask/0.7.1
[INFO] extracting crate cask 0.7.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cask/0.7.1
[INFO] validating manifest of cask-0.7.1 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 cask-0.7.1 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 cask-0.7.1
[INFO] finished frobbing cask-0.7.1
[INFO] frobbed toml for cask-0.7.1 written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/cask/0.7.1/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] testing cask-0.7.1 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e8b5ad1b9fcc60066abaea5c2712c637f3463bb819cd239a0fe123aad8bdcf61
[INFO] running `"docker" "start" "-a" "e8b5ad1b9fcc60066abaea5c2712c637f3463bb819cd239a0fe123aad8bdcf61"`
[INFO] [stderr]    Compiling byteorder v1.0.0
[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 6.00s
[INFO] running `"docker" "inspect" "e8b5ad1b9fcc60066abaea5c2712c637f3463bb819cd239a0fe123aad8bdcf61"`
[INFO] running `"docker" "rm" "-f" "e8b5ad1b9fcc60066abaea5c2712c637f3463bb819cd239a0fe123aad8bdcf61"`
[INFO] [stdout] e8b5ad1b9fcc60066abaea5c2712c637f3463bb819cd239a0fe123aad8bdcf61
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c9cbb7548ce52d8e18e6c843c5689211bd1d2d0a3ad5f359753a802fa56804e1
[INFO] running `"docker" "start" "-a" "c9cbb7548ce52d8e18e6c843c5689211bd1d2d0a3ad5f359753a802fa56804e1"`
[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 2.77s
[INFO] running `"docker" "inspect" "c9cbb7548ce52d8e18e6c843c5689211bd1d2d0a3ad5f359753a802fa56804e1"`
[INFO] running `"docker" "rm" "-f" "c9cbb7548ce52d8e18e6c843c5689211bd1d2d0a3ad5f359753a802fa56804e1"`
[INFO] [stdout] c9cbb7548ce52d8e18e6c843c5689211bd1d2d0a3ad5f359753a802fa56804e1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 30c6ee1ef8d40202844f62568fafe8f812087f1c4c1dba3d0624139eb4578c35
[INFO] running `"docker" "start" "-a" "30c6ee1ef8d40202844f62568fafe8f812087f1c4c1dba3d0624139eb4578c35"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cask-d428bd82d0950a60
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test data::tests::test_serialization ... ok
[INFO] [stdout] test data::tests::test_deleted ... 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" "30c6ee1ef8d40202844f62568fafe8f812087f1c4c1dba3d0624139eb4578c35"`
[INFO] running `"docker" "rm" "-f" "30c6ee1ef8d40202844f62568fafe8f812087f1c4c1dba3d0624139eb4578c35"`
[INFO] [stdout] 30c6ee1ef8d40202844f62568fafe8f812087f1c4c1dba3d0624139eb4578c35