[INFO] crate lines 0.0.6 is already in cache
[INFO] extracting crate lines 0.0.6 into work/ex/beta-1.38-1/sources/1.37.0/reg/lines/0.0.6
[INFO] extracting crate lines 0.0.6 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lines/0.0.6
[INFO] validating manifest of lines-0.0.6 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 lines-0.0.6 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 lines-0.0.6
[INFO] finished frobbing lines-0.0.6
[INFO] frobbed toml for lines-0.0.6 written to work/ex/beta-1.38-1/sources/1.37.0/reg/lines/0.0.6/Cargo.toml
[INFO] started frobbing lines-0.0.6
[INFO] finished frobbing lines-0.0.6
[INFO] frobbed toml for lines-0.0.6 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lines/0.0.6/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 lines-0.0.6 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lines/0.0.6:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c9fb8c8b81036d6784d723855a5c61cb05ed98e4bb90eff85c03b44a9130688b
[INFO] running `"docker" "start" "-a" "c9fb8c8b81036d6784d723855a5c61cb05ed98e4bb90eff85c03b44a9130688b"`
[INFO] [stderr]    Compiling lines v0.0.6 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/linemapper.rs:57:54
[INFO] [stderr]    |
[INFO] [stderr] 57 |                         line_start.extend_from_slice((&b[..i+1]));
[INFO] [stderr]    |                                                      ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `"docker" "inspect" "c9fb8c8b81036d6784d723855a5c61cb05ed98e4bb90eff85c03b44a9130688b"`
[INFO] running `"docker" "rm" "-f" "c9fb8c8b81036d6784d723855a5c61cb05ed98e4bb90eff85c03b44a9130688b"`
[INFO] [stdout] c9fb8c8b81036d6784d723855a5c61cb05ed98e4bb90eff85c03b44a9130688b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lines/0.0.6:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 25dcd52d8cefcd85bb732aa5dc9f7a2a6205f3e1dc1c3264711ae22de831e19e
[INFO] running `"docker" "start" "-a" "25dcd52d8cefcd85bb732aa5dc9f7a2a6205f3e1dc1c3264711ae22de831e19e"`
[INFO] [stderr]    Compiling lines v0.0.6 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/linemapper.rs:57:54
[INFO] [stderr]    |
[INFO] [stderr] 57 |                         line_start.extend_from_slice((&b[..i+1]));
[INFO] [stderr]    |                                                      ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "25dcd52d8cefcd85bb732aa5dc9f7a2a6205f3e1dc1c3264711ae22de831e19e"`
[INFO] running `"docker" "rm" "-f" "25dcd52d8cefcd85bb732aa5dc9f7a2a6205f3e1dc1c3264711ae22de831e19e"`
[INFO] [stdout] 25dcd52d8cefcd85bb732aa5dc9f7a2a6205f3e1dc1c3264711ae22de831e19e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lines/0.0.6:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 9e5210552d17b8ae9eb46db5555673a459066090d01502997f643359f561c836
[INFO] running `"docker" "start" "-a" "9e5210552d17b8ae9eb46db5555673a459066090d01502997f643359f561c836"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lines-674f61c9264dc381
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test bytes::test_index ... ok
[INFO] [stdout] test bytes::test_index_non16b_start ... ok
[INFO] [stdout] test bytes::test_index_byte_not_found ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lib-91c1ecce0e8fb248
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_linemapper_linecount ... ok
[INFO] [stdout] test test_linereader_linecount ... ok
[INFO] [stdout] test test_linemapper_lines ... ok
[INFO] [stdout] test test_linereader_lines ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lines
[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" "9e5210552d17b8ae9eb46db5555673a459066090d01502997f643359f561c836"`
[INFO] running `"docker" "rm" "-f" "9e5210552d17b8ae9eb46db5555673a459066090d01502997f643359f561c836"`
[INFO] [stdout] 9e5210552d17b8ae9eb46db5555673a459066090d01502997f643359f561c836