Dec 05 01:39:13.636 INFO checking KoharaKazuya/forest against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 01:39:13.636 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 01:39:13.926 INFO [stdout] c6f0c12a25a66011f5250c0104122765725dcf7bccb6ce996b7f97bf425126ba
Dec 05 01:39:13.933 INFO running `"docker" "start" "-a" "c6f0c12a25a66011f5250c0104122765725dcf7bccb6ce996b7f97bf425126ba"`
Dec 05 01:39:14.512 INFO [stderr] usermod: no changes
Dec 05 01:39:14.544 INFO [stderr]     Checking forest v0.2.0 (/source)
Dec 05 01:39:15.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 01:39:15.015 INFO [stderr]   --> src/tree_formatter.rs:28:9
Dec 05 01:39:15.015 INFO [stderr]    |
Dec 05 01:39:15.015 INFO [stderr] 28 | /         write!(self.writer, "{}", match *shape {
Dec 05 01:39:15.015 INFO [stderr] 29 | |           Shape::Open => &self.ancestor_guide_open,
Dec 05 01:39:15.015 INFO [stderr] 30 | |           Shape::Close => &self.ancestor_guide_close,
Dec 05 01:39:15.015 INFO [stderr] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
Dec 05 01:39:15.015 INFO [stderr] 32 | |         });
Dec 05 01:39:15.015 INFO [stderr]    | |___________^
Dec 05 01:39:15.015 INFO [stderr]    |
Dec 05 01:39:15.015 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 01:39:15.015 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 01:39:15.015 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 01:39:15.015 INFO [stderr] 
Dec 05 01:39:15.015 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 01:39:15.015 INFO [stderr]   --> src/tree_formatter.rs:39:7
Dec 05 01:39:15.015 INFO [stderr]    |
Dec 05 01:39:15.015 INFO [stderr] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
Dec 05 01:39:15.015 INFO [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 01:39:15.015 INFO [stderr]    |
Dec 05 01:39:15.015 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 01:39:15.015 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 01:39:15.015 INFO [stderr] 
Dec 05 01:39:15.379 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 01:39:15.379 INFO [stderr]   --> src/tree_formatter.rs:28:9
Dec 05 01:39:15.379 INFO [stderr]    |
Dec 05 01:39:15.379 INFO [stderr] 28 | /         write!(self.writer, "{}", match *shape {
Dec 05 01:39:15.379 INFO [stderr] 29 | |           Shape::Open => &self.ancestor_guide_open,
Dec 05 01:39:15.379 INFO [stderr] 30 | |           Shape::Close => &self.ancestor_guide_close,
Dec 05 01:39:15.379 INFO [stderr] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
Dec 05 01:39:15.379 INFO [stderr] 32 | |         });
Dec 05 01:39:15.379 INFO [stderr]    | |___________^
Dec 05 01:39:15.379 INFO [stderr]    |
Dec 05 01:39:15.379 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 01:39:15.379 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 01:39:15.379 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 01:39:15.379 INFO [stderr] 
Dec 05 01:39:15.379 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 01:39:15.379 INFO [stderr]   --> src/tree_formatter.rs:39:7
Dec 05 01:39:15.379 INFO [stderr]    |
Dec 05 01:39:15.379 INFO [stderr] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
Dec 05 01:39:15.379 INFO [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 01:39:15.379 INFO [stderr]    |
Dec 05 01:39:15.379 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 01:39:15.379 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 01:39:15.379 INFO [stderr] 
Dec 05 01:39:15.403 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 05 01:39:15.406 INFO [stderr] su: No module specific data is present
Dec 05 01:39:15.727 INFO running `"docker" "inspect" "c6f0c12a25a66011f5250c0104122765725dcf7bccb6ce996b7f97bf425126ba"`
Dec 05 01:39:15.820 INFO running `"docker" "rm" "-f" "c6f0c12a25a66011f5250c0104122765725dcf7bccb6ce996b7f97bf425126ba"`
Dec 05 01:39:15.922 INFO [stdout] c6f0c12a25a66011f5250c0104122765725dcf7bccb6ce996b7f97bf425126ba