Dec 19 05:30:49.889 INFO checking wirelyre/vvvtar against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 05:30:49.889 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/wirelyre/vvvtar:/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=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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:30:50.181 INFO [stdout] e5c390f2f1125fb60b14de14a2f7b514307fcb6b4cab11a6c3accbc6dcf24127
Dec 19 05:30:50.186 INFO running `"docker" "start" "-a" "e5c390f2f1125fb60b14de14a2f7b514307fcb6b4cab11a6c3accbc6dcf24127"`
Dec 19 05:30:50.725 INFO [stderr]     Checking vvvtar v0.1.0 (/opt/crater/workdir)
Dec 19 05:30:50.966 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:30:50.966 INFO [stderr]   --> src/main.rs:33:5
Dec 19 05:30:50.966 INFO [stderr]    |
Dec 19 05:30:50.966 INFO [stderr] 33 |     archive.write(&header.unparse().unwrap());
Dec 19 05:30:50.966 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:30:50.966 INFO [stderr]    |
Dec 19 05:30:50.966 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 05:30:50.966 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:30:50.966 INFO [stderr] 
Dec 19 05:30:50.966 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:30:50.966 INFO [stderr]   --> src/main.rs:72:9
Dec 19 05:30:50.966 INFO [stderr]    |
Dec 19 05:30:50.966 INFO [stderr] 72 |         std::io::stdout().flush();
Dec 19 05:30:50.966 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:30:50.967 INFO [stderr]    |
Dec 19 05:30:50.997 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:30:50.997 INFO [stderr] 
Dec 19 05:30:50.997 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:30:50.997 INFO [stderr]   --> src/main.rs:79:9
Dec 19 05:30:50.997 INFO [stderr]    |
Dec 19 05:30:50.997 INFO [stderr] 79 |         dst.write(&buf[0..progress]);
Dec 19 05:30:50.997 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:30:50.997 INFO [stderr]    |
Dec 19 05:30:50.997 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:30:50.997 INFO [stderr] 
Dec 19 05:30:50.998 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:30:50.998 INFO [stderr]   --> src/main.rs:33:5
Dec 19 05:30:50.998 INFO [stderr]    |
Dec 19 05:30:50.998 INFO [stderr] 33 |     archive.write(&header.unparse().unwrap());
Dec 19 05:30:50.998 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:30:50.998 INFO [stderr]    |
Dec 19 05:30:50.998 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 05:30:50.998 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:30:50.998 INFO [stderr] 
Dec 19 05:30:50.998 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:30:50.998 INFO [stderr]   --> src/main.rs:72:9
Dec 19 05:30:50.998 INFO [stderr]    |
Dec 19 05:30:50.998 INFO [stderr] 72 |         std::io::stdout().flush();
Dec 19 05:30:50.998 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:30:50.998 INFO [stderr]    |
Dec 19 05:30:50.998 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:30:50.998 INFO [stderr] 
Dec 19 05:30:50.998 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:30:50.998 INFO [stderr]   --> src/main.rs:79:9
Dec 19 05:30:50.998 INFO [stderr]    |
Dec 19 05:30:50.998 INFO [stderr] 79 |         dst.write(&buf[0..progress]);
Dec 19 05:30:50.998 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:30:50.998 INFO [stderr]    |
Dec 19 05:30:50.998 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:30:50.998 INFO [stderr] 
Dec 19 05:30:51.002 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
Dec 19 05:30:51.401 INFO running `"docker" "inspect" "e5c390f2f1125fb60b14de14a2f7b514307fcb6b4cab11a6c3accbc6dcf24127"`
Dec 19 05:30:51.570 INFO running `"docker" "rm" "-f" "e5c390f2f1125fb60b14de14a2f7b514307fcb6b4cab11a6c3accbc6dcf24127"`
Dec 19 05:30:51.716 INFO [stdout] e5c390f2f1125fb60b14de14a2f7b514307fcb6b4cab11a6c3accbc6dcf24127