[INFO] crate uhttp_response_header 0.5.0 is already in cache
[INFO] extracting crate uhttp_response_header 0.5.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/uhttp_response_header/0.5.0
[INFO] extracting crate uhttp_response_header 0.5.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/uhttp_response_header/0.5.0
[INFO] validating manifest of uhttp_response_header-0.5.0 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 uhttp_response_header-0.5.0 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 uhttp_response_header-0.5.0
[INFO] finished frobbing uhttp_response_header-0.5.0
[INFO] frobbed toml for uhttp_response_header-0.5.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/uhttp_response_header/0.5.0/Cargo.toml
[INFO] started frobbing uhttp_response_header-0.5.0
[INFO] finished frobbing uhttp_response_header-0.5.0
[INFO] frobbed toml for uhttp_response_header-0.5.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/uhttp_response_header/0.5.0/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 uhttp_response_header-0.5.0 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/uhttp_response_header/0.5.0:/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] 3c093e791058543c09b3f399bdd68c26a0e04471e8db50fd592f276c0e4e476b
[INFO] running `"docker" "start" "-a" "3c093e791058543c09b3f399bdd68c26a0e04471e8db50fd592f276c0e4e476b"`
[INFO] [stderr]    Compiling uhttp_response_header v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/lib.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         self.0.flush().is_ok();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/lib.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn drop(&mut self) { self.write(&b"\r\n"[..]).is_ok(); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "3c093e791058543c09b3f399bdd68c26a0e04471e8db50fd592f276c0e4e476b"`
[INFO] running `"docker" "rm" "-f" "3c093e791058543c09b3f399bdd68c26a0e04471e8db50fd592f276c0e4e476b"`
[INFO] [stdout] 3c093e791058543c09b3f399bdd68c26a0e04471e8db50fd592f276c0e4e476b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/uhttp_response_header/0.5.0:/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] 66be015a3bb6c2c1935fee7e71e56b83c7d631dcb9f5acfed260b44292bfdfef
[INFO] running `"docker" "start" "-a" "66be015a3bb6c2c1935fee7e71e56b83c7d631dcb9f5acfed260b44292bfdfef"`
[INFO] [stderr]    Compiling uhttp_response_header v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/lib.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         self.0.flush().is_ok();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/lib.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn drop(&mut self) { self.write(&b"\r\n"[..]).is_ok(); }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "66be015a3bb6c2c1935fee7e71e56b83c7d631dcb9f5acfed260b44292bfdfef"`
[INFO] running `"docker" "rm" "-f" "66be015a3bb6c2c1935fee7e71e56b83c7d631dcb9f5acfed260b44292bfdfef"`
[INFO] [stdout] 66be015a3bb6c2c1935fee7e71e56b83c7d631dcb9f5acfed260b44292bfdfef
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/uhttp_response_header/0.5.0:/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] 0d3282bcbb78975da0e24385c505f0f5be222018ee63e08f7f75b64b1eface6d
[INFO] running `"docker" "start" "-a" "0d3282bcbb78975da0e24385c505f0f5be222018ee63e08f7f75b64b1eface6d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/uhttp_response_header-53ca8d6d79148322
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_header_line ... ok
[INFO] [stdout] test test::test_header_lines ... 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 uhttp_response_header
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0d3282bcbb78975da0e24385c505f0f5be222018ee63e08f7f75b64b1eface6d"`
[INFO] running `"docker" "rm" "-f" "0d3282bcbb78975da0e24385c505f0f5be222018ee63e08f7f75b64b1eface6d"`
[INFO] [stdout] 0d3282bcbb78975da0e24385c505f0f5be222018ee63e08f7f75b64b1eface6d