[INFO] crate expectation 0.1.1 is already in cache
[INFO] extracting crate expectation 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/expectation/0.1.1
[INFO] extracting crate expectation 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/expectation/0.1.1
[INFO] validating manifest of expectation-0.1.1 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 expectation-0.1.1 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 expectation-0.1.1
[INFO] finished frobbing expectation-0.1.1
[INFO] frobbed toml for expectation-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/expectation/0.1.1/Cargo.toml
[INFO] started frobbing expectation-0.1.1
[INFO] finished frobbing expectation-0.1.1
[INFO] frobbed toml for expectation-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/expectation/0.1.1/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] [stderr]     Blocking waiting for file lock on package cache lock
[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 expectation-0.1.1 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/expectation/0.1.1:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 6643557d7bc4b50ca9f115044411c7ac71984eaafa44ab57f25f266fc400b526
[INFO] running `"docker" "start" "-a" "6643557d7bc4b50ca9f115044411c7ac71984eaafa44ab57f25f266fc400b526"`
[INFO] [stderr]    Compiling expectation-shared v0.1.0
[INFO] [stderr]    Compiling expectation v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/lib.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let name = name.trim_left_matches("expectation_test_");
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:136:17
[INFO] [stderr]     |
[INFO] [stderr] 136 |                 writeln!(w, "image formats are different");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:137:17
[INFO] [stderr]     |
[INFO] [stderr] 137 |                 writeln!(w, "actual:   RGB8");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 writeln!(w, "expected: RGBA8 (Alpha)");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |                 writeln!(w, "image formats are different");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:145:17
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 writeln!(w, "actual:   RGBA8 (Alpha)");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |                 writeln!(w, "expected: RGB8");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `"docker" "inspect" "6643557d7bc4b50ca9f115044411c7ac71984eaafa44ab57f25f266fc400b526"`
[INFO] running `"docker" "rm" "-f" "6643557d7bc4b50ca9f115044411c7ac71984eaafa44ab57f25f266fc400b526"`
[INFO] [stdout] 6643557d7bc4b50ca9f115044411c7ac71984eaafa44ab57f25f266fc400b526
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/expectation/0.1.1:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c875c827c84dd38f768d80bc5b5a55b417753b2b69708c7ec2c008761be1f1d4
[INFO] running `"docker" "start" "-a" "c875c827c84dd38f768d80bc5b5a55b417753b2b69708c7ec2c008761be1f1d4"`
[INFO] [stderr]    Compiling expectation v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/lib.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let name = name.trim_left_matches("expectation_test_");
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:136:17
[INFO] [stderr]     |
[INFO] [stderr] 136 |                 writeln!(w, "image formats are different");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:137:17
[INFO] [stderr]     |
[INFO] [stderr] 137 |                 writeln!(w, "actual:   RGB8");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 writeln!(w, "expected: RGBA8 (Alpha)");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |                 writeln!(w, "image formats are different");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:145:17
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 writeln!(w, "actual:   RGBA8 (Alpha)");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/extensions/image.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |                 writeln!(w, "expected: RGB8");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `"docker" "inspect" "c875c827c84dd38f768d80bc5b5a55b417753b2b69708c7ec2c008761be1f1d4"`
[INFO] running `"docker" "rm" "-f" "c875c827c84dd38f768d80bc5b5a55b417753b2b69708c7ec2c008761be1f1d4"`
[INFO] [stdout] c875c827c84dd38f768d80bc5b5a55b417753b2b69708c7ec2c008761be1f1d4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/expectation/0.1.1:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] b88c99661e43548dbc499999eda1103d2da8d9a1acd885cce23775c69f41d2cb
[INFO] running `"docker" "start" "-a" "b88c99661e43548dbc499999eda1103d2da8d9a1acd885cce23775c69f41d2cb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/expectation-af5a3651b1e44ef7
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test provider::writer_does_not_write_to_filesystem_if_not_written_to ... ok
[INFO] [stdout] test test::not_used_provider ... ok
[INFO] [stdout] test test::validate_one_file_diff_is_bad ... ok
[INFO] [stdout] test test::validate_one_file_expected_not_found ... ok
[INFO] [stdout] test test::validate_one_file_diff_is_bad_with_text_extension ... ok
[INFO] [stdout] test test::validate_one_file_actual_not_found ... ok
[INFO] [stdout] test test::validate_on_no_files ... ok
[INFO] [stdout] test test::provider_used_once ... ok
[INFO] [stdout] test test::provider_used_more_than_once ... ok
[INFO] [stdout] test test::validate_one_file_expected_not_found_subdir ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests expectation
[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" "b88c99661e43548dbc499999eda1103d2da8d9a1acd885cce23775c69f41d2cb"`
[INFO] running `"docker" "rm" "-f" "b88c99661e43548dbc499999eda1103d2da8d9a1acd885cce23775c69f41d2cb"`
[INFO] [stdout] b88c99661e43548dbc499999eda1103d2da8d9a1acd885cce23775c69f41d2cb