[INFO] fetching crate buf_redux 0.8.2... [INFO] extracting crate buf_redux 0.8.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/buf_redux/0.8.2 [INFO] extracting crate buf_redux 0.8.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf_redux/0.8.2 [INFO] validating manifest of buf_redux-0.8.2 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 buf_redux-0.8.2 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 buf_redux-0.8.2 [INFO] finished frobbing buf_redux-0.8.2 [INFO] frobbed toml for buf_redux-0.8.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/buf_redux/0.8.2/Cargo.toml [INFO] started frobbing buf_redux-0.8.2 [INFO] finished frobbing buf_redux-0.8.2 [INFO] frobbed toml for buf_redux-0.8.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf_redux/0.8.2/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 buf_redux-0.8.2 against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf_redux/0.8.2:/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-2019-07-23" "build" "--frozen"` [INFO] [stdout] 483678d31aa1b9648c02a421ad19498880ee240ab34cdd57950c328234e170b9 [INFO] running `"docker" "start" "-a" "483678d31aa1b9648c02a421ad19498880ee240ab34cdd57950c328234e170b9"` [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling slice-deque v0.2.4 [INFO] [stderr] Compiling buf_redux v0.8.2 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:372:45 [INFO] [stderr] | [INFO] [stderr] 372 | pub fn boxed<'a>(self) -> BufReader, P> where R: 'a { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:373:24 [INFO] [stderr] | [INFO] [stderr] 373 | let inner: Box = Box::new(self.inner); [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:870:32 [INFO] [stderr] | [INFO] [stderr] 870 | fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:1272:42 [INFO] [stderr] | [INFO] [stderr] 1272 | static DROP_ERR_HANDLER: RefCell> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:1272:50 [INFO] [stderr] | [INFO] [stderr] 1272 | static DROP_ERR_HANDLER: RefCell> [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:1285:18 [INFO] [stderr] | [INFO] [stderr] 1285 | where F: Fn(&mut Write, &mut Buffer, io::Error) [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:1049:17 [INFO] [stderr] | [INFO] [stderr] 1049 | let mut buf = unsafe { self.buf.write_buf() }; [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] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:1067:17 [INFO] [stderr] | [INFO] [stderr] 1067 | let mut buf = self.buf.write_buf(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.59s [INFO] running `"docker" "inspect" "483678d31aa1b9648c02a421ad19498880ee240ab34cdd57950c328234e170b9"` [INFO] running `"docker" "rm" "-f" "483678d31aa1b9648c02a421ad19498880ee240ab34cdd57950c328234e170b9"` [INFO] [stdout] 483678d31aa1b9648c02a421ad19498880ee240ab34cdd57950c328234e170b9 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf_redux/0.8.2:/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-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] fb29f43270df2982053642d33ae92a4f9519b3c2fc35ffc02fd0efcbe7e2b3c1 [INFO] running `"docker" "start" "-a" "fb29f43270df2982053642d33ae92a4f9519b3c2fc35ffc02fd0efcbe7e2b3c1"` [INFO] [stderr] Compiling buf_redux v0.8.2 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:372:45 [INFO] [stderr] | [INFO] [stderr] 372 | pub fn boxed<'a>(self) -> BufReader, P> where R: 'a { [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:373:24 [INFO] [stderr] | [INFO] [stderr] 373 | let inner: Box = Box::new(self.inner); [INFO] [stderr] | ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:870:32 [INFO] [stderr] | [INFO] [stderr] 870 | fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:1272:42 [INFO] [stderr] | [INFO] [stderr] 1272 | static DROP_ERR_HANDLER: RefCell> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:1272:50 [INFO] [stderr] | [INFO] [stderr] 1272 | static DROP_ERR_HANDLER: RefCell> [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:1285:18 [INFO] [stderr] | [INFO] [stderr] 1285 | where F: Fn(&mut Write, &mut Buffer, io::Error) [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:1049:17 [INFO] [stderr] | [INFO] [stderr] 1049 | let mut buf = unsafe { self.buf.write_buf() }; [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] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:1067:17 [INFO] [stderr] | [INFO] [stderr] 1067 | let mut buf = self.buf.write_buf(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.04s [INFO] running `"docker" "inspect" "fb29f43270df2982053642d33ae92a4f9519b3c2fc35ffc02fd0efcbe7e2b3c1"` [INFO] running `"docker" "rm" "-f" "fb29f43270df2982053642d33ae92a4f9519b3c2fc35ffc02fd0efcbe7e2b3c1"` [INFO] [stdout] fb29f43270df2982053642d33ae92a4f9519b3c2fc35ffc02fd0efcbe7e2b3c1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf_redux/0.8.2:/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-2019-07-23" "test" "--frozen"` [INFO] [stdout] 63296dc698ada7be769fb74ba3eb3d285aad8bb5d6b0061bd96713bbb19e94ba [INFO] running `"docker" "start" "-a" "63296dc698ada7be769fb74ba3eb3d285aad8bb5d6b0061bd96713bbb19e94ba"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/buf_redux-a034b401bde6ffd2 [INFO] [stdout] [INFO] [stdout] running 29 tests [INFO] [stdout] test policy::test::test_flush_on_newline ... ok [INFO] [stdout] test policy::test::test_min_buffered ... ok [INFO] [stdout] test policy::test::test_flush_on ... ok [INFO] [stdout] test buffer::std_buf::read_into_full ... ok [INFO] [stdout] test policy::test::test_flush_at_least ... ok [INFO] [stdout] test policy::test::test_flush_exact ... ok [INFO] [stdout] test ringbuf_tests::test_buffer_with_cap ... ok [INFO] [stdout] test ringbuf_tests::test_buffered_reader_seek_underflow ... ok [INFO] [stdout] test ringbuf_tests::test_buffer_new ... ok [INFO] [stdout] test ringbuf_tests::test_lines ... ok [INFO] [stdout] test ringbuf_tests::test_buffered_reader ... ok [INFO] [stdout] test ringbuf_tests::test_buffered_reader_seek ... ok [INFO] [stdout] test ringbuf_tests::issue_8 ... ok [INFO] [stdout] test ringbuf_tests::test_short_reads ... ok [INFO] [stdout] test std_tests::test_buffered_reader_seek_underflow ... ok [INFO] [stdout] test std_tests::test_buffered_reader_seek ... ok [INFO] [stdout] test std_tests::test_buf_writer_drops_once ... ok [INFO] [stdout] test std_tests::test_buffered_reader ... ok [INFO] [stdout] test ringbuf_tests::test_read_line ... ok [INFO] [stdout] test ringbuf_tests::test_read_until ... ok [INFO] [stdout] test ringbuf_tests::test_mirror_boundary ... ok [INFO] [stdout] test std_tests::test_short_reads ... ok [INFO] [stdout] test std_tests::test_read_line ... ok [INFO] [stdout] test std_tests::test_lines ... ok [INFO] [stdout] test std_tests::test_buffered_writer_seek ... ok [INFO] [stdout] test std_tests::test_buffered_writer_inner_flushes ... ok [INFO] [stderr] Doc-tests buf_redux [INFO] [stdout] test std_tests::test_read_until ... ok [INFO] [stdout] test std_tests::test_line_buffer ... ok [INFO] [stdout] test std_tests::test_buffered_writer ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/policy.rs - policy::MinBuffered (line 78) ... 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" "63296dc698ada7be769fb74ba3eb3d285aad8bb5d6b0061bd96713bbb19e94ba"` [INFO] running `"docker" "rm" "-f" "63296dc698ada7be769fb74ba3eb3d285aad8bb5d6b0061bd96713bbb19e94ba"` [INFO] [stdout] 63296dc698ada7be769fb74ba3eb3d285aad8bb5d6b0061bd96713bbb19e94ba