[INFO] crate target_build_utils 0.3.1 is already in cache
[INFO] extracting crate target_build_utils 0.3.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/target_build_utils/0.3.1
[INFO] extracting crate target_build_utils 0.3.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/target_build_utils/0.3.1
[INFO] validating manifest of target_build_utils-0.3.1 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 target_build_utils-0.3.1 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 target_build_utils-0.3.1
[INFO] finished frobbing target_build_utils-0.3.1
[INFO] frobbed toml for target_build_utils-0.3.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/target_build_utils/0.3.1/Cargo.toml
[INFO] started frobbing target_build_utils-0.3.1
[INFO] finished frobbing target_build_utils-0.3.1
[INFO] frobbed toml for target_build_utils-0.3.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/target_build_utils/0.3.1/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 target_build_utils-0.3.1 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-4/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/target_build_utils/0.3.1:/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] 33c6fca167dc7daad3acadeef0467dbad4f9abf6e0d99b7f6a8cbb71f1efc59e
[INFO] running `"docker" "start" "-a" "33c6fca167dc7daad3acadeef0467dbad4f9abf6e0d99b7f6a8cbb71f1efc59e"`
[INFO] [stderr]    Compiling target_build_utils v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:96:32
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::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 6.46s
[INFO] running `"docker" "inspect" "33c6fca167dc7daad3acadeef0467dbad4f9abf6e0d99b7f6a8cbb71f1efc59e"`
[INFO] running `"docker" "rm" "-f" "33c6fca167dc7daad3acadeef0467dbad4f9abf6e0d99b7f6a8cbb71f1efc59e"`
[INFO] [stdout] 33c6fca167dc7daad3acadeef0467dbad4f9abf6e0d99b7f6a8cbb71f1efc59e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/target_build_utils/0.3.1:/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] d2a6d38fbbc654dd2e384a54f15f47170829806e41a83bf3e72b7c820d016e23
[INFO] running `"docker" "start" "-a" "d2a6d38fbbc654dd2e384a54f15f47170829806e41a83bf3e72b7c820d016e23"`
[INFO] [stderr]    Compiling target_build_utils v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:96:32
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::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 2.67s
[INFO] running `"docker" "inspect" "d2a6d38fbbc654dd2e384a54f15f47170829806e41a83bf3e72b7c820d016e23"`
[INFO] running `"docker" "rm" "-f" "d2a6d38fbbc654dd2e384a54f15f47170829806e41a83bf3e72b7c820d016e23"`
[INFO] [stdout] d2a6d38fbbc654dd2e384a54f15f47170829806e41a83bf3e72b7c820d016e23
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/target_build_utils/0.3.1:/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] 38dd5a8d9316e2ed3cd5a4b963761c234de2fbca3952fbbd14149a7f3d31a411
[INFO] running `"docker" "start" "-a" "38dd5a8d9316e2ed3cd5a4b963761c234de2fbca3952fbbd14149a7f3d31a411"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/target_build_utils-49ed4382b96a3020
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::external_work ... ok
[INFO] [stdout] test tests::external_search_work ... ok
[INFO] [stdout] test tests::correct_os ... ok
[INFO] [stdout] test tests::correct_env ... ok
[INFO] [stdout] test tests::correct_vendors ... ok
[INFO] [stdout] test tests::correct_archs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests target_build_utils
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - TargetInfo::target_cfg (line 255) ... ok
[INFO] [stdout] test src/lib.rs - TargetInfo::from_str (line 142) ... ok
[INFO] [stdout] test src/lib.rs - TargetInfo::new (line 128) ... ok
[INFO] [stdout] test src/lib.rs -  (line 36) ... ok
[INFO] [stdout] test src/lib.rs - TargetInfo::target_cfg_value (line 271) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "38dd5a8d9316e2ed3cd5a4b963761c234de2fbca3952fbbd14149a7f3d31a411"`
[INFO] running `"docker" "rm" "-f" "38dd5a8d9316e2ed3cd5a4b963761c234de2fbca3952fbbd14149a7f3d31a411"`
[INFO] [stdout] 38dd5a8d9316e2ed3cd5a4b963761c234de2fbca3952fbbd14149a7f3d31a411