Dec 18 16:21:44.068 INFO checking fse_dump-0.3.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:21:44.068 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/fse_dump/0.3.0:/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=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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:21:44.440 INFO [stdout] d9ea8e9cd7e7633eff438d41de0323aabec1693d73f7e4e5a484e541832d3f72
Dec 18 16:21:44.446 INFO running `"docker" "start" "-a" "d9ea8e9cd7e7633eff438d41de0323aabec1693d73f7e4e5a484e541832d3f72"`
Dec 18 16:21:45.464 INFO [stderr]     Checking log v0.4.6
Dec 18 16:21:45.920 INFO [stderr]     Checking env_logger v0.6.0
Dec 18 16:21:46.701 INFO [stderr]     Checking fse_dump v0.3.0 (/opt/crater/workdir)
Dec 18 16:21:48.516 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 16:21:48.516 INFO [stderr]  --> src/main.rs:7:1
Dec 18 16:21:48.516 INFO [stderr]   |
Dec 18 16:21:48.516 INFO [stderr] 7 | #[macro_use]
Dec 18 16:21:48.516 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 16:21:48.516 INFO [stderr]   |
Dec 18 16:21:48.516 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 16:21:48.516 INFO [stderr] 
Dec 18 16:21:48.616 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 16:21:48.616 INFO [stderr]  --> src/main.rs:7:1
Dec 18 16:21:48.616 INFO [stderr]   |
Dec 18 16:21:48.616 INFO [stderr] 7 | #[macro_use]
Dec 18 16:21:48.616 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 16:21:48.616 INFO [stderr]   |
Dec 18 16:21:48.616 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 16:21:48.616 INFO [stderr] 
Dec 18 16:21:49.160 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 16:21:49.160 INFO [stderr]    --> src/file_parser.rs:135:21
Dec 18 16:21:49.160 INFO [stderr]     |
Dec 18 16:21:49.160 INFO [stderr] 135 |                     u.send((rec.path.to_string(), rec.flag));
Dec 18 16:21:49.160 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:21:49.160 INFO [stderr]     |
Dec 18 16:21:49.160 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 16:21:49.160 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 16:21:49.160 INFO [stderr] 
Dec 18 16:21:49.244 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 16:21:49.244 INFO [stderr]    --> src/file_parser.rs:135:21
Dec 18 16:21:49.244 INFO [stderr]     |
Dec 18 16:21:49.244 INFO [stderr] 135 |                     u.send((rec.path.to_string(), rec.flag));
Dec 18 16:21:49.244 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 16:21:49.244 INFO [stderr]     |
Dec 18 16:21:49.244 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 16:21:49.244 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 16:21:49.244 INFO [stderr] 
Dec 18 16:21:49.296 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.00s
Dec 18 16:21:49.780 INFO running `"docker" "inspect" "d9ea8e9cd7e7633eff438d41de0323aabec1693d73f7e4e5a484e541832d3f72"`
Dec 18 16:21:50.018 INFO running `"docker" "rm" "-f" "d9ea8e9cd7e7633eff438d41de0323aabec1693d73f7e4e5a484e541832d3f72"`
Dec 18 16:21:50.212 INFO [stdout] d9ea8e9cd7e7633eff438d41de0323aabec1693d73f7e4e5a484e541832d3f72