[INFO] crate byte_buffer 0.1.0 is already in cache
[INFO] extracting crate byte_buffer 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/byte_buffer/0.1.0
[INFO] extracting crate byte_buffer 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte_buffer/0.1.0
[INFO] validating manifest of byte_buffer-0.1.0 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 byte_buffer-0.1.0 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 byte_buffer-0.1.0
[INFO] finished frobbing byte_buffer-0.1.0
[INFO] frobbed toml for byte_buffer-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/byte_buffer/0.1.0/Cargo.toml
[INFO] started frobbing byte_buffer-0.1.0
[INFO] finished frobbing byte_buffer-0.1.0
[INFO] frobbed toml for byte_buffer-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/byte_buffer/0.1.0/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 byte_buffer-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/byte_buffer/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 11d960fd0795b3cd8f1b90e6c8042ae21fa0988776c19d50bc8459c45e2ce1e7
[INFO] running `"docker" "start" "-a" "11d960fd0795b3cd8f1b90e6c8042ae21fa0988776c19d50bc8459c45e2ce1e7"`
[INFO] [stderr]    Compiling byte_buffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "11d960fd0795b3cd8f1b90e6c8042ae21fa0988776c19d50bc8459c45e2ce1e7"`
[INFO] running `"docker" "rm" "-f" "11d960fd0795b3cd8f1b90e6c8042ae21fa0988776c19d50bc8459c45e2ce1e7"`
[INFO] [stdout] 11d960fd0795b3cd8f1b90e6c8042ae21fa0988776c19d50bc8459c45e2ce1e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/byte_buffer/0.1.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e0d773ac2e6a047107f2b1b8e508feb169760b673c6a3968ebc69c0c191e51f4
[INFO] running `"docker" "start" "-a" "e0d773ac2e6a047107f2b1b8e508feb169760b673c6a3968ebc69c0c191e51f4"`
[INFO] [stderr]    Compiling byte_buffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/basic.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "e0d773ac2e6a047107f2b1b8e508feb169760b673c6a3968ebc69c0c191e51f4"`
[INFO] running `"docker" "rm" "-f" "e0d773ac2e6a047107f2b1b8e508feb169760b673c6a3968ebc69c0c191e51f4"`
[INFO] [stdout] e0d773ac2e6a047107f2b1b8e508feb169760b673c6a3968ebc69c0c191e51f4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/byte_buffer/0.1.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 79b280ba9d124dd8d472775fad12c1e10a6f3af151b0f30337854390b5eb6ca3
[INFO] running `"docker" "start" "-a" "79b280ba9d124dd8d472775fad12c1e10a6f3af151b0f30337854390b5eb6ca3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/byte_buffer-b0fae5e05cd56729
[INFO] [stderr]    Doc-tests byte_buffer
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs -  (line 15) ... FAILED
[INFO] [stdout] test src/lib.rs -  (line 8) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 15) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `io`
[INFO] [stdout]   --> src/lib.rs:27:3
[INFO] [stdout]    |
[INFO] [stdout] 13 |   io::repeat(0b101).read_exact(buffer.as_writable().unwrap()).unwrap();
[INFO] [stdout]    |   ^^ use of undeclared type or module `io`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap` found for type `&mut [u8]` in the current scope
[INFO] [stdout]   --> src/lib.rs:27:53
[INFO] [stdout]    |
[INFO] [stdout] 13 |   io::repeat(0b101).read_exact(buffer.as_writable().unwrap()).unwrap();
[INFO] [stdout]    |                                                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_readable` found for type `byte_buffer::manager::BufferSlice` in the current scope
[INFO] [stdout]   --> src/lib.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |   assert_eq!(buffer.as_readable().unwrap(), [0b101, 0b101, 0b101]);
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs -  (line 8) stdout ----
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `byte_buffer`
[INFO] [stdout]  --> src/lib.rs:10:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | [dependencies]
[INFO] [stdout]   |               - expected one of `.`, `;`, `?`, `}`, or an operator here
[INFO] [stdout] 5 | byte_buffer = "0.1"
[INFO] [stdout]   | ^^^^^^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `dependencies` in this scope
[INFO] [stdout]  --> src/lib.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | [dependencies]
[INFO] [stdout]   |  ^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 15)
[INFO] [stdout]     src/lib.rs -  (line 8)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "79b280ba9d124dd8d472775fad12c1e10a6f3af151b0f30337854390b5eb6ca3"`
[INFO] running `"docker" "rm" "-f" "79b280ba9d124dd8d472775fad12c1e10a6f3af151b0f30337854390b5eb6ca3"`
[INFO] [stdout] 79b280ba9d124dd8d472775fad12c1e10a6f3af151b0f30337854390b5eb6ca3