Dec 19 19:33:17.885 INFO checking brntsllvn/mgit against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:33:17.885 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/brntsllvn/mgit:/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 19:33:18.354 INFO [stdout] 2a5b64034638d7cef33701629b8b1a34032b00ebdc442e1c2d088e2668d68184
Dec 19 19:33:18.360 INFO running `"docker" "start" "-a" "2a5b64034638d7cef33701629b8b1a34032b00ebdc442e1c2d088e2668d68184"`
Dec 19 19:33:19.628 INFO [stderr]     Checking libz-sys v1.0.20
Dec 19 19:33:19.906 INFO [stderr]     Checking flate2 v1.0.2
Dec 19 19:33:20.815 INFO [stderr]     Checking mgit v0.1.0 (/opt/crater/workdir)
Dec 19 19:33:21.540 INFO [stderr] warning: unused variable: `new_file`
Dec 19 19:33:21.540 INFO [stderr]    --> src/database/index.rs:180:13
Dec 19 19:33:21.540 INFO [stderr]     |
Dec 19 19:33:21.540 INFO [stderr] 180 |         let new_file = File::create(new_filepath).expect("could not create test file");
Dec 19 19:33:21.540 INFO [stderr]     |             ^^^^^^^^ help: consider using `_new_file` instead
Dec 19 19:33:21.540 INFO [stderr]     |
Dec 19 19:33:21.540 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 19:33:21.540 INFO [stderr] 
Dec 19 19:33:21.624 INFO [stderr] warning: variable does not need to be mutable
Dec 19 19:33:21.624 INFO [stderr]    --> src/database/index.rs:186:13
Dec 19 19:33:21.624 INFO [stderr]     |
Dec 19 19:33:21.624 INFO [stderr] 186 |         let mut index_hash = get_index_contents();
Dec 19 19:33:21.624 INFO [stderr]     |             ----^^^^^^^^^^
Dec 19 19:33:21.624 INFO [stderr]     |             |
Dec 19 19:33:21.624 INFO [stderr]     |             help: remove this `mut`
Dec 19 19:33:21.624 INFO [stderr]     |
Dec 19 19:33:21.624 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 19:33:21.624 INFO [stderr] 
Dec 19 19:33:21.624 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.624 INFO [stderr]   --> src/commands/init.rs:35:9
Dec 19 19:33:21.624 INFO [stderr]    |
Dec 19 19:33:21.624 INFO [stderr] 35 |         fs::create_dir(test_dir);
Dec 19 19:33:21.624 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.624 INFO [stderr]    |
Dec 19 19:33:21.624 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 19:33:21.624 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.624 INFO [stderr] 
Dec 19 19:33:21.624 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.624 INFO [stderr]   --> src/commands/init.rs:63:9
Dec 19 19:33:21.624 INFO [stderr]    |
Dec 19 19:33:21.624 INFO [stderr] 63 |         env::set_current_dir("..");
Dec 19 19:33:21.624 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.624 INFO [stderr]    |
Dec 19 19:33:21.624 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.624 INFO [stderr] 
Dec 19 19:33:21.624 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.624 INFO [stderr]   --> src/commands/init.rs:64:9
Dec 19 19:33:21.624 INFO [stderr]    |
Dec 19 19:33:21.624 INFO [stderr] 64 |         fs::remove_dir_all(test_dir);
Dec 19 19:33:21.624 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.624 INFO [stderr]    |
Dec 19 19:33:21.624 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.624 INFO [stderr] 
Dec 19 19:33:21.624 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.624 INFO [stderr]    --> src/database/index.rs:142:9
Dec 19 19:33:21.624 INFO [stderr]     |
Dec 19 19:33:21.624 INFO [stderr] 142 |         fs::create_dir(test_dir);
Dec 19 19:33:21.625 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.625 INFO [stderr]     |
Dec 19 19:33:21.625 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.625 INFO [stderr] 
Dec 19 19:33:21.625 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.625 INFO [stderr]    --> src/database/index.rs:145:9
Dec 19 19:33:21.625 INFO [stderr]     |
Dec 19 19:33:21.625 INFO [stderr] 145 |         fs::create_dir(MGIT_PATH);
Dec 19 19:33:21.625 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.625 INFO [stderr]     |
Dec 19 19:33:21.625 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.625 INFO [stderr] 
Dec 19 19:33:21.625 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.625 INFO [stderr]    --> src/database/index.rs:166:9
Dec 19 19:33:21.625 INFO [stderr]     |
Dec 19 19:33:21.625 INFO [stderr] 166 |         env::set_current_dir("..");
Dec 19 19:33:21.625 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.625 INFO [stderr]     |
Dec 19 19:33:21.625 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.625 INFO [stderr] 
Dec 19 19:33:21.625 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.625 INFO [stderr]    --> src/database/index.rs:167:9
Dec 19 19:33:21.625 INFO [stderr]     |
Dec 19 19:33:21.625 INFO [stderr] 167 |         fs::remove_dir_all(test_dir);
Dec 19 19:33:21.625 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.625 INFO [stderr]     |
Dec 19 19:33:21.625 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.625 INFO [stderr] 
Dec 19 19:33:21.626 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.626 INFO [stderr]    --> src/database/index.rs:173:9
Dec 19 19:33:21.626 INFO [stderr]     |
Dec 19 19:33:21.626 INFO [stderr] 173 |         fs::create_dir(test_dir);
Dec 19 19:33:21.626 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.626 INFO [stderr]     |
Dec 19 19:33:21.626 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.626 INFO [stderr] 
Dec 19 19:33:21.626 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.626 INFO [stderr]    --> src/database/index.rs:175:9
Dec 19 19:33:21.626 INFO [stderr]     |
Dec 19 19:33:21.626 INFO [stderr] 175 |         fs::create_dir(MGIT_PATH);
Dec 19 19:33:21.626 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.626 INFO [stderr]     |
Dec 19 19:33:21.626 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.626 INFO [stderr] 
Dec 19 19:33:21.626 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.626 INFO [stderr]    --> src/database/index.rs:176:9
Dec 19 19:33:21.626 INFO [stderr]     |
Dec 19 19:33:21.626 INFO [stderr] 176 |         fs::create_dir(OBJ_PATH);
Dec 19 19:33:21.626 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.626 INFO [stderr]     |
Dec 19 19:33:21.626 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/index.rs:177:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 177 |         File::create(INDEX_PATH);
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/index.rs:191:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 191 |         env::set_current_dir("..");
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/index.rs:192:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 192 |         fs::remove_dir_all(test_dir);
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/mod.rs:154:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 154 |         fs::create_dir(test_dir);
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/mod.rs:156:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 156 |         fs::create_dir(MGIT_PATH);
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/mod.rs:157:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 157 |         fs::create_dir(OBJ_PATH);
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/mod.rs:162:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 162 |         new_file.write_all(file_contents);
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/mod.rs:172:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 172 |         env::set_current_dir("..");
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.627 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:33:21.627 INFO [stderr]    --> src/database/mod.rs:173:9
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr] 173 |         fs::remove_dir_all(test_dir);
Dec 19 19:33:21.627 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:33:21.627 INFO [stderr]     |
Dec 19 19:33:21.627 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:33:21.627 INFO [stderr] 
Dec 19 19:33:21.651 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Dec 19 19:33:22.215 INFO running `"docker" "inspect" "2a5b64034638d7cef33701629b8b1a34032b00ebdc442e1c2d088e2668d68184"`
Dec 19 19:33:22.430 INFO running `"docker" "rm" "-f" "2a5b64034638d7cef33701629b8b1a34032b00ebdc442e1c2d088e2668d68184"`
Dec 19 19:33:22.596 INFO [stdout] 2a5b64034638d7cef33701629b8b1a34032b00ebdc442e1c2d088e2668d68184