[INFO] crate config 0.9.3 is already in cache
[INFO] extracting crate config 0.9.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/config/0.9.3
[INFO] extracting crate config 0.9.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/config/0.9.3
[INFO] validating manifest of config-0.9.3 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 config-0.9.3 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 config-0.9.3
[INFO] finished frobbing config-0.9.3
[INFO] frobbed toml for config-0.9.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/config/0.9.3/Cargo.toml
[INFO] started frobbing config-0.9.3
[INFO] finished frobbing config-0.9.3
[INFO] frobbed toml for config-0.9.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/config/0.9.3/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 config-0.9.3 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/config/0.9.3:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] dbefe2a167cb9921c533af723e108a7c97ae4f521ea5397d8e35b0be03ced35d
[INFO] running `"docker" "start" "-a" "dbefe2a167cb9921c533af723e108a7c97ae4f521ea5397d8e35b0be03ced35d"`
[INFO] [stderr]    Compiling config v0.9.3 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/path/mod.rs:155:21
[INFO] [stderr]     |
[INFO] [stderr] 155 |                 let mut do_again = false;
[INFO] [stderr]     |                     ----^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `"docker" "inspect" "dbefe2a167cb9921c533af723e108a7c97ae4f521ea5397d8e35b0be03ced35d"`
[INFO] running `"docker" "rm" "-f" "dbefe2a167cb9921c533af723e108a7c97ae4f521ea5397d8e35b0be03ced35d"`
[INFO] [stdout] dbefe2a167cb9921c533af723e108a7c97ae4f521ea5397d8e35b0be03ced35d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/config/0.9.3:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5c49e21f2af3beddbf8f132750e8f625c6231e90baea1692adc3c4b2b8c685f9
[INFO] running `"docker" "start" "-a" "5c49e21f2af3beddbf8f132750e8f625c6231e90baea1692adc3c4b2b8c685f9"`
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling config v0.9.3 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/path/mod.rs:155:21
[INFO] [stderr]     |
[INFO] [stderr] 155 |                 let mut do_again = false;
[INFO] [stderr]     |                     ----^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.41s
[INFO] running `"docker" "inspect" "5c49e21f2af3beddbf8f132750e8f625c6231e90baea1692adc3c4b2b8c685f9"`
[INFO] running `"docker" "rm" "-f" "5c49e21f2af3beddbf8f132750e8f625c6231e90baea1692adc3c4b2b8c685f9"`
[INFO] [stdout] 5c49e21f2af3beddbf8f132750e8f625c6231e90baea1692adc3c4b2b8c685f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/config/0.9.3:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f3efdbbe941cb736b0ba9b65334a0d2e08fe45348fad566a75b3be3438e92030
[INFO] running `"docker" "start" "-a" "f3efdbbe941cb736b0ba9b65334a0d2e08fe45348fad566a75b3be3438e92030"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/config-f8c4d588a681b989
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test path::parser::test::test_id_dash ... ok
[INFO] [stdout] test path::parser::test::test_subscript_neg ... ok
[INFO] [stdout] test ser::test::test_struct ... ok
[INFO] [stdout] test path::parser::test::test_child ... ok
[INFO] [stdout] test path::parser::test::test_id ... ok
[INFO] [stdout] test path::parser::test::test_subscript ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/datetime-e855c9b789253071
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_datetime ... ok
[INFO] [stdout] test test_datetime_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/defaults-8b967c64ca2f3dd6
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test set_defaults ... ok
[INFO] [stdout] test try_from_defaults ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test empty_deserializes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/empty-9743661c309e9988
[INFO] [stderr]      Running /opt/crater/target/debug/deps/env-9b4b73f4b0400331
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_separator_behavior ... ok
[INFO] [stdout] test test_prefix_is_removed_from_key ... ok
[INFO] [stdout] test test_empty_value_is_ignored ... ok
[INFO] [stdout] test test_default ... ok
[INFO] [stdout] test test_prefix_with_variant_forms_of_spelling ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/errors-a36dc525d98c5f6a
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_error_parse ... ok
[INFO] [stdout] test test_error_enum_de ... ok
[INFO] [stdout] test error_with_path ... ok
[INFO] [stdout] test test_error_type ... ok
[INFO] [stdout] test test_error_type_detached ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file-b570923705140e14
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_file_ext ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file_hjson-8c0e05657751c6d1
[INFO] [stdout] test test_file_not_required ... ok
[INFO] [stdout] test test_file_required_not_found ... ok
[INFO] [stdout] test test_file_auto_not_found ... ok
[INFO] [stdout] test test_file_auto ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_error_parse ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file_ini-fd8d50fe9a6d7edd
[INFO] [stdout] test test_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_error_parse ... ok
[INFO] [stdout] test test_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file_json-a75334fb482dbdec
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_error_parse ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file_toml-43e9f126bb66eff8
[INFO] [stdout] test test_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_file ... ok
[INFO] [stdout] test test_error_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/file_yaml-a05df05feb442fbb
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_error_parse ... ok
[INFO] [stdout] test test_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/get-3fa92787c37ad07d
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test test_enum ... ok
[INFO] [stdout] test test_file_struct ... ok
[INFO] [stdout] test test_get_scalar_path ... ok
[INFO] [stdout] test test_array_scalar ... ok
[INFO] [stdout] test test_map_str ... ok
[INFO] [stdout] test test_scalar_struct ... ok
[INFO] [stdout] test test_map ... ok
[INFO] [stdout] test test_get_scalar_path_subscript ... ok
[INFO] [stdout] test test_map_struct ... ok
[INFO] [stdout] test test_struct_array ... ok
[INFO] [stdout] test test_scalar_type_loose ... ok
[INFO] [stdout] test test_not_found ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/merge-50c4b35cbacb4f60
[INFO] [stdout] test test_scalar ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_merge ... ok
[INFO] [stdout] test test_merge_whole_config ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/set-4c7e60d8e1b3d20b
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_set_scalar ... ok
[INFO] [stdout] test test_set_capital ... ok
[INFO] [stdout] test test_set_scalar_default ... ok
[INFO] [stdout] test test_set_arr_path ... ok
[INFO] [stdout] test test_set_scalar_path ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests config
[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" "f3efdbbe941cb736b0ba9b65334a0d2e08fe45348fad566a75b3be3438e92030"`
[INFO] running `"docker" "rm" "-f" "f3efdbbe941cb736b0ba9b65334a0d2e08fe45348fad566a75b3be3438e92030"`
[INFO] [stdout] f3efdbbe941cb736b0ba9b65334a0d2e08fe45348fad566a75b3be3438e92030