Dec 19 21:39:34.437 INFO checking TheSatoshiChiba/Reverse-Word-Pairs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:39:34.437 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/TheSatoshiChiba/Reverse-Word-Pairs:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:39:34.894 INFO [stdout] 1a0c5e6390530f47d51f5cf786be4df696332b439822dd51dba7a73e496f757f
Dec 19 21:39:34.896 INFO running `"docker" "start" "-a" "1a0c5e6390530f47d51f5cf786be4df696332b439822dd51dba7a73e496f757f"`
Dec 19 21:39:36.832 INFO [stderr]     Checking rust_attempts v0.1.0 (/opt/crater/workdir/rust_attempts)
Dec 19 21:39:37.308 INFO [stderr]     Checking reverse_word_pairs v0.1.0 (/opt/crater/workdir)
Dec 19 21:39:37.768 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:39:37.768 INFO [stderr]  --> src/main.rs:6:5
Dec 19 21:39:37.768 INFO [stderr]   |
Dec 19 21:39:37.768 INFO [stderr] 6 |     run( "hash_map_1", 100, "data/TheReverseWordTest.txt", &rust_attempts::attempt1::run );
Dec 19 21:39:37.768 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:39:37.768 INFO [stderr]   |
Dec 19 21:39:37.768 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 19 21:39:37.768 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:39:37.768 INFO [stderr] 
Dec 19 21:39:37.768 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:39:37.768 INFO [stderr]  --> src/main.rs:7:5
Dec 19 21:39:37.768 INFO [stderr]   |
Dec 19 21:39:37.768 INFO [stderr] 7 |     run( "hash_map_2", 100, "data/TheReverseWordTest.txt", &rust_attempts::attempt2::run );
Dec 19 21:39:37.768 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:39:37.768 INFO [stderr]   |
Dec 19 21:39:37.768 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:39:37.768 INFO [stderr] 
Dec 19 21:39:37.810 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:39:37.810 INFO [stderr]  --> src/main.rs:6:5
Dec 19 21:39:37.810 INFO [stderr]   |
Dec 19 21:39:37.810 INFO [stderr] 6 |     run( "hash_map_1", 100, "data/TheReverseWordTest.txt", &rust_attempts::attempt1::run );
Dec 19 21:39:37.810 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:39:37.810 INFO [stderr]   |
Dec 19 21:39:37.810 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 19 21:39:37.810 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:39:37.810 INFO [stderr] 
Dec 19 21:39:37.810 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:39:37.810 INFO [stderr]  --> src/main.rs:7:5
Dec 19 21:39:37.810 INFO [stderr]   |
Dec 19 21:39:37.810 INFO [stderr] 7 |     run( "hash_map_2", 100, "data/TheReverseWordTest.txt", &rust_attempts::attempt2::run );
Dec 19 21:39:37.810 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:39:37.810 INFO [stderr]   |
Dec 19 21:39:37.810 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:39:37.810 INFO [stderr] 
Dec 19 21:39:37.843 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
Dec 19 21:39:38.732 INFO running `"docker" "inspect" "1a0c5e6390530f47d51f5cf786be4df696332b439822dd51dba7a73e496f757f"`
Dec 19 21:39:39.014 INFO running `"docker" "rm" "-f" "1a0c5e6390530f47d51f5cf786be4df696332b439822dd51dba7a73e496f757f"`
Dec 19 21:39:39.320 INFO [stdout] 1a0c5e6390530f47d51f5cf786be4df696332b439822dd51dba7a73e496f757f