Dec 14 00:44:50.081 INFO testing brntsllvn/mgit against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 00:44:50.081 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 00:44:50.511 INFO [stdout] 4e2646083e7f74c307fdab7924c6b930f100f354d9bd442a999e5d496cbfb0e1
Dec 14 00:44:50.519 INFO running `"docker" "start" "-a" "4e2646083e7f74c307fdab7924c6b930f100f354d9bd442a999e5d496cbfb0e1"`
Dec 14 00:44:52.131 INFO [stderr] usermod: no changes
Dec 14 00:44:52.270 INFO [stderr]    Compiling flate2 v1.0.2
Dec 14 00:44:54.287 INFO [stderr]    Compiling mgit v0.1.0 (/source)
Dec 14 00:44:57.556 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.39s
Dec 14 00:44:57.560 INFO [stderr] su: No module specific data is present
Dec 14 00:44:58.437 INFO running `"docker" "inspect" "4e2646083e7f74c307fdab7924c6b930f100f354d9bd442a999e5d496cbfb0e1"`
Dec 14 00:44:58.755 INFO running `"docker" "rm" "-f" "4e2646083e7f74c307fdab7924c6b930f100f354d9bd442a999e5d496cbfb0e1"`
Dec 14 00:44:59.039 INFO [stdout] 4e2646083e7f74c307fdab7924c6b930f100f354d9bd442a999e5d496cbfb0e1
Dec 14 00:44:59.045 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 00:44:59.486 INFO [stdout] b29a34b6db8339a4aee642df96892de56f1a1f7b033bad610b2d273b74e3c4e3
Dec 14 00:44:59.488 INFO running `"docker" "start" "-a" "b29a34b6db8339a4aee642df96892de56f1a1f7b033bad610b2d273b74e3c4e3"`
Dec 14 00:45:01.339 INFO [stderr] usermod: no changes
Dec 14 00:45:01.439 INFO [stderr]    Compiling mgit v0.1.0 (/source)
Dec 14 00:45:02.419 INFO [stderr] warning: unused variable: `new_file`
Dec 14 00:45:02.419 INFO [stderr]    --> src/database/index.rs:180:13
Dec 14 00:45:02.419 INFO [stderr]     |
Dec 14 00:45:02.419 INFO [stderr] 180 |         let new_file = File::create(new_filepath).expect("could not create test file");
Dec 14 00:45:02.419 INFO [stderr]     |             ^^^^^^^^ help: consider using `_new_file` instead
Dec 14 00:45:02.419 INFO [stderr]     |
Dec 14 00:45:02.419 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 14 00:45:02.419 INFO [stderr] 
Dec 14 00:45:02.471 INFO [stderr] warning: variable does not need to be mutable
Dec 14 00:45:02.471 INFO [stderr]    --> src/database/index.rs:186:13
Dec 14 00:45:02.471 INFO [stderr]     |
Dec 14 00:45:02.471 INFO [stderr] 186 |         let mut index_hash = get_index_contents();
Dec 14 00:45:02.471 INFO [stderr]     |             ----^^^^^^^^^^
Dec 14 00:45:02.471 INFO [stderr]     |             |
Dec 14 00:45:02.471 INFO [stderr]     |             help: remove this `mut`
Dec 14 00:45:02.471 INFO [stderr]     |
Dec 14 00:45:02.471 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 14 00:45:02.471 INFO [stderr] 
Dec 14 00:45:02.474 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.474 INFO [stderr]   --> src/commands/init.rs:35:9
Dec 14 00:45:02.474 INFO [stderr]    |
Dec 14 00:45:02.474 INFO [stderr] 35 |         fs::create_dir(test_dir);
Dec 14 00:45:02.474 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.474 INFO [stderr]    |
Dec 14 00:45:02.474 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 00:45:02.474 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.474 INFO [stderr] 
Dec 14 00:45:02.474 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.474 INFO [stderr]   --> src/commands/init.rs:63:9
Dec 14 00:45:02.474 INFO [stderr]    |
Dec 14 00:45:02.474 INFO [stderr] 63 |         env::set_current_dir("..");
Dec 14 00:45:02.474 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.474 INFO [stderr]    |
Dec 14 00:45:02.474 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.474 INFO [stderr] 
Dec 14 00:45:02.474 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.474 INFO [stderr]   --> src/commands/init.rs:64:9
Dec 14 00:45:02.474 INFO [stderr]    |
Dec 14 00:45:02.474 INFO [stderr] 64 |         fs::remove_dir_all(test_dir);
Dec 14 00:45:02.474 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.474 INFO [stderr]    |
Dec 14 00:45:02.474 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.474 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.478 INFO [stderr]    --> src/database/index.rs:142:9
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr] 142 |         fs::create_dir(test_dir);
Dec 14 00:45:02.478 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.478 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.478 INFO [stderr]    --> src/database/index.rs:145:9
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr] 145 |         fs::create_dir(MGIT_PATH);
Dec 14 00:45:02.478 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.478 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.478 INFO [stderr]    --> src/database/index.rs:166:9
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr] 166 |         env::set_current_dir("..");
Dec 14 00:45:02.478 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.478 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.478 INFO [stderr]    --> src/database/index.rs:167:9
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr] 167 |         fs::remove_dir_all(test_dir);
Dec 14 00:45:02.478 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.478 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.478 INFO [stderr]    --> src/database/index.rs:173:9
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr] 173 |         fs::create_dir(test_dir);
Dec 14 00:45:02.478 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.478 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.478 INFO [stderr]    --> src/database/index.rs:175:9
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr] 175 |         fs::create_dir(MGIT_PATH);
Dec 14 00:45:02.478 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.478 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.478 INFO [stderr]    --> src/database/index.rs:176:9
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr] 176 |         fs::create_dir(OBJ_PATH);
Dec 14 00:45:02.478 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.478 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.478 INFO [stderr]    --> src/database/index.rs:177:9
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr] 177 |         File::create(INDEX_PATH);
Dec 14 00:45:02.478 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.478 INFO [stderr]     |
Dec 14 00:45:02.478 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.478 INFO [stderr] 
Dec 14 00:45:02.478 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.480 INFO [stderr]    --> src/database/index.rs:191:9
Dec 14 00:45:02.480 INFO [stderr]     |
Dec 14 00:45:02.480 INFO [stderr] 191 |         env::set_current_dir("..");
Dec 14 00:45:02.480 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.480 INFO [stderr]     |
Dec 14 00:45:02.480 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.480 INFO [stderr] 
Dec 14 00:45:02.480 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.480 INFO [stderr]    --> src/database/index.rs:192:9
Dec 14 00:45:02.480 INFO [stderr]     |
Dec 14 00:45:02.480 INFO [stderr] 192 |         fs::remove_dir_all(test_dir);
Dec 14 00:45:02.480 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.480 INFO [stderr]     |
Dec 14 00:45:02.480 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.480 INFO [stderr] 
Dec 14 00:45:02.483 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.483 INFO [stderr]    --> src/database/mod.rs:154:9
Dec 14 00:45:02.483 INFO [stderr]     |
Dec 14 00:45:02.483 INFO [stderr] 154 |         fs::create_dir(test_dir);
Dec 14 00:45:02.483 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.483 INFO [stderr]     |
Dec 14 00:45:02.483 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.483 INFO [stderr] 
Dec 14 00:45:02.483 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.483 INFO [stderr]    --> src/database/mod.rs:156:9
Dec 14 00:45:02.483 INFO [stderr]     |
Dec 14 00:45:02.483 INFO [stderr] 156 |         fs::create_dir(MGIT_PATH);
Dec 14 00:45:02.483 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.483 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.484 INFO [stderr] 
Dec 14 00:45:02.484 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.484 INFO [stderr]    --> src/database/mod.rs:157:9
Dec 14 00:45:02.484 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr] 157 |         fs::create_dir(OBJ_PATH);
Dec 14 00:45:02.484 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.484 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.484 INFO [stderr] 
Dec 14 00:45:02.484 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.484 INFO [stderr]    --> src/database/mod.rs:162:9
Dec 14 00:45:02.484 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr] 162 |         new_file.write_all(file_contents);
Dec 14 00:45:02.484 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.484 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.484 INFO [stderr] 
Dec 14 00:45:02.484 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.484 INFO [stderr]    --> src/database/mod.rs:172:9
Dec 14 00:45:02.484 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr] 172 |         env::set_current_dir("..");
Dec 14 00:45:02.484 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.484 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.484 INFO [stderr] 
Dec 14 00:45:02.484 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 00:45:02.484 INFO [stderr]    --> src/database/mod.rs:173:9
Dec 14 00:45:02.484 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr] 173 |         fs::remove_dir_all(test_dir);
Dec 14 00:45:02.484 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 00:45:02.484 INFO [stderr]     |
Dec 14 00:45:02.484 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 00:45:02.484 INFO [stderr] 
Dec 14 00:45:03.891 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.52s
Dec 14 00:45:03.903 INFO [stderr] su: No module specific data is present
Dec 14 00:45:04.187 INFO running `"docker" "inspect" "b29a34b6db8339a4aee642df96892de56f1a1f7b033bad610b2d273b74e3c4e3"`
Dec 14 00:45:04.323 INFO running `"docker" "rm" "-f" "b29a34b6db8339a4aee642df96892de56f1a1f7b033bad610b2d273b74e3c4e3"`
Dec 14 00:45:04.524 INFO [stdout] b29a34b6db8339a4aee642df96892de56f1a1f7b033bad610b2d273b74e3c4e3