Dec 11 18:07:35.613 INFO checking gcouvrette/peek against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 18:07:35.613 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-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 11 18:07:36.127 INFO [stdout] c0e84973f1729d518a299c3d92fc586dc208036d97deb8391c5cc5173f6b6cf6
Dec 11 18:07:36.129 INFO running `"docker" "start" "-a" "c0e84973f1729d518a299c3d92fc586dc208036d97deb8391c5cc5173f6b6cf6"`
Dec 11 18:07:38.492 INFO [stderr] usermod: no changes
Dec 11 18:07:38.563 INFO [stderr]     Checking termios v0.2.2
Dec 11 18:07:39.248 INFO [stderr]     Checking getch v0.1.1
Dec 11 18:07:39.741 INFO [stderr]     Checking peek v0.1.0 (/source)
Dec 11 18:07:40.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 18:07:40.336 INFO [stderr]   --> src/read_mode/linear_mode.rs:28:9
Dec 11 18:07:40.336 INFO [stderr]    |
Dec 11 18:07:40.336 INFO [stderr] 28 |         self.file.seek(SeekFrom::Start(self.index));
Dec 11 18:07:40.336 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:07:40.336 INFO [stderr]    |
Dec 11 18:07:40.336 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 18:07:40.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 18:07:40.336 INFO [stderr] 
Dec 11 18:07:40.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 18:07:40.336 INFO [stderr]   --> src/read_mode/linear_mode.rs:29:9
Dec 11 18:07:40.336 INFO [stderr]    |
Dec 11 18:07:40.336 INFO [stderr] 29 |         self.file.read(buf.as_mut_slice());
Dec 11 18:07:40.336 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:07:40.336 INFO [stderr]    |
Dec 11 18:07:40.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 18:07:40.336 INFO [stderr] 
Dec 11 18:07:40.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 18:07:40.336 INFO [stderr]   --> src/read_mode/multiline_mode.rs:34:13
Dec 11 18:07:40.336 INFO [stderr]    |
Dec 11 18:07:40.336 INFO [stderr] 34 |             self.file.seek(SeekFrom::Start(seek_idx));
Dec 11 18:07:40.336 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:07:40.336 INFO [stderr]    |
Dec 11 18:07:40.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 18:07:40.336 INFO [stderr] 
Dec 11 18:07:40.800 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 18:07:40.800 INFO [stderr]   --> src/read_mode/linear_mode.rs:28:9
Dec 11 18:07:40.800 INFO [stderr]    |
Dec 11 18:07:40.800 INFO [stderr] 28 |         self.file.seek(SeekFrom::Start(self.index));
Dec 11 18:07:40.800 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:07:40.800 INFO [stderr]    |
Dec 11 18:07:40.800 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 18:07:40.800 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 18:07:40.800 INFO [stderr] 
Dec 11 18:07:40.800 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 18:07:40.800 INFO [stderr]   --> src/read_mode/linear_mode.rs:29:9
Dec 11 18:07:40.800 INFO [stderr]    |
Dec 11 18:07:40.800 INFO [stderr] 29 |         self.file.read(buf.as_mut_slice());
Dec 11 18:07:40.800 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:07:40.800 INFO [stderr]    |
Dec 11 18:07:40.800 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 18:07:40.800 INFO [stderr] 
Dec 11 18:07:40.800 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 18:07:40.800 INFO [stderr]   --> src/read_mode/multiline_mode.rs:34:13
Dec 11 18:07:40.800 INFO [stderr]    |
Dec 11 18:07:40.800 INFO [stderr] 34 |             self.file.seek(SeekFrom::Start(seek_idx));
Dec 11 18:07:40.800 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 18:07:40.801 INFO [stderr]    |
Dec 11 18:07:40.801 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 18:07:40.801 INFO [stderr] 
Dec 11 18:07:41.418 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
Dec 11 18:07:41.424 INFO [stderr] su: No module specific data is present
Dec 11 18:07:42.322 INFO running `"docker" "inspect" "c0e84973f1729d518a299c3d92fc586dc208036d97deb8391c5cc5173f6b6cf6"`
Dec 11 18:07:42.682 INFO running `"docker" "rm" "-f" "c0e84973f1729d518a299c3d92fc586dc208036d97deb8391c5cc5173f6b6cf6"`
Dec 11 18:07:43.060 INFO [stdout] c0e84973f1729d518a299c3d92fc586dc208036d97deb8391c5cc5173f6b6cf6