[INFO] crate mathematica-notebook-filter 0.2.2 is already in cache
[INFO] extracting crate mathematica-notebook-filter 0.2.2 into work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/mathematica-notebook-filter/0.2.2
[INFO] extracting crate mathematica-notebook-filter 0.2.2 into work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/reg/mathematica-notebook-filter/0.2.2
[INFO] validating manifest of mathematica-notebook-filter-0.2.2 on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mathematica-notebook-filter-0.2.2 on toolchain try#74092351c05ae61047b2be02024415546595e974
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mathematica-notebook-filter-0.2.2
[INFO] finished frobbing mathematica-notebook-filter-0.2.2
[INFO] frobbed toml for mathematica-notebook-filter-0.2.2 written to work/ex/pr-60174/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/mathematica-notebook-filter/0.2.2/Cargo.toml
[INFO] started frobbing mathematica-notebook-filter-0.2.2
[INFO] finished frobbing mathematica-notebook-filter-0.2.2
[INFO] frobbed toml for mathematica-notebook-filter-0.2.2 written to work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/reg/mathematica-notebook-filter/0.2.2/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+74092351c05ae61047b2be02024415546595e974-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mathematica-notebook-filter-0.2.2 against try#74092351c05ae61047b2be02024415546595e974 for pr-60174
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60174/worker-7/try#74092351c05ae61047b2be02024415546595e974:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60174/sources/try#74092351c05ae61047b2be02024415546595e974/reg/mathematica-notebook-filter/0.2.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+74092351c05ae61047b2be02024415546595e974-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 81e499b614c2abdfff2c0356f17589a276de3517d393dd1ea5f2bbeff71b1f71
[INFO] running `"docker" "start" "-a" "81e499b614c2abdfff2c0356f17589a276de3517d393dd1ea5f2bbeff71b1f71"`
[INFO] [stderr]     Checking stderrlog v0.4.1
[INFO] [stderr]     Checking mathematica-notebook-filter v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/parser/whitespace.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 |             wc.write_all(input).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/parser/whitespace.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |             wc.flush().is_ok();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/parser/whitespace.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 111 |             wc.write_all(input.as_bytes()).is_ok();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/parser/whitespace.rs:112:13
[INFO] [stderr]     |
[INFO] [stderr] 112 |             wc.flush().is_ok();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `"docker" "inspect" "81e499b614c2abdfff2c0356f17589a276de3517d393dd1ea5f2bbeff71b1f71"`
[INFO] running `"docker" "rm" "-f" "81e499b614c2abdfff2c0356f17589a276de3517d393dd1ea5f2bbeff71b1f71"`
[INFO] [stdout] 81e499b614c2abdfff2c0356f17589a276de3517d393dd1ea5f2bbeff71b1f71