Dec 18 06:54:20.013 INFO checking KoharaKazuya/forest against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:54:20.013 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/KoharaKazuya/forest:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:54:20.496 INFO [stdout] f19dd1ab66907ef23f4e4068851e3183a0f2da11403293ecf00ca22024a0618a
Dec 18 06:54:20.504 INFO running `"docker" "start" "-a" "f19dd1ab66907ef23f4e4068851e3183a0f2da11403293ecf00ca22024a0618a"`
Dec 18 06:54:22.396 INFO [stderr]     Checking forest v0.2.0 (/opt/crater/workdir)
Dec 18 06:54:22.880 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:54:22.880 INFO [stderr]   --> src/tree_formatter.rs:28:9
Dec 18 06:54:22.880 INFO [stderr]    |
Dec 18 06:54:22.880 INFO [stderr] 28 | /         write!(self.writer, "{}", match *shape {
Dec 18 06:54:22.880 INFO [stderr] 29 | |           Shape::Open => &self.ancestor_guide_open,
Dec 18 06:54:22.880 INFO [stderr] 30 | |           Shape::Close => &self.ancestor_guide_close,
Dec 18 06:54:22.880 INFO [stderr] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
Dec 18 06:54:22.880 INFO [stderr] 32 | |         });
Dec 18 06:54:22.880 INFO [stderr]    | |___________^
Dec 18 06:54:22.880 INFO [stderr]    |
Dec 18 06:54:22.880 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:54:22.880 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:54:22.880 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 18 06:54:22.880 INFO [stderr] 
Dec 18 06:54:22.880 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:54:22.880 INFO [stderr]   --> src/tree_formatter.rs:39:7
Dec 18 06:54:22.880 INFO [stderr]    |
Dec 18 06:54:22.880 INFO [stderr] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
Dec 18 06:54:22.880 INFO [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:54:22.880 INFO [stderr]    |
Dec 18 06:54:22.880 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:54:22.880 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 18 06:54:22.880 INFO [stderr] 
Dec 18 06:54:23.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:54:23.005 INFO [stderr]   --> src/tree_formatter.rs:28:9
Dec 18 06:54:23.005 INFO [stderr]    |
Dec 18 06:54:23.005 INFO [stderr] 28 | /         write!(self.writer, "{}", match *shape {
Dec 18 06:54:23.005 INFO [stderr] 29 | |           Shape::Open => &self.ancestor_guide_open,
Dec 18 06:54:23.005 INFO [stderr] 30 | |           Shape::Close => &self.ancestor_guide_close,
Dec 18 06:54:23.005 INFO [stderr] 31 | |           _ => panic!("Unexpected Internal Value\nPerhaps, internal logic error...\nformatter can treat with only Open/Close Shape"),
Dec 18 06:54:23.005 INFO [stderr] 32 | |         });
Dec 18 06:54:23.005 INFO [stderr]    | |___________^
Dec 18 06:54:23.005 INFO [stderr]    |
Dec 18 06:54:23.005 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:54:23.005 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:54:23.005 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 18 06:54:23.005 INFO [stderr] 
Dec 18 06:54:23.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:54:23.005 INFO [stderr]   --> src/tree_formatter.rs:39:7
Dec 18 06:54:23.005 INFO [stderr]    |
Dec 18 06:54:23.005 INFO [stderr] 39 |       write!(self.writer, "{}{}\n", ng, entry.name);
Dec 18 06:54:23.005 INFO [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:54:23.005 INFO [stderr]    |
Dec 18 06:54:23.005 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:54:23.005 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 18 06:54:23.005 INFO [stderr] 
Dec 18 06:54:23.044 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 18 06:54:23.730 INFO running `"docker" "inspect" "f19dd1ab66907ef23f4e4068851e3183a0f2da11403293ecf00ca22024a0618a"`
Dec 18 06:54:24.074 INFO running `"docker" "rm" "-f" "f19dd1ab66907ef23f4e4068851e3183a0f2da11403293ecf00ca22024a0618a"`
Dec 18 06:54:24.485 INFO [stdout] f19dd1ab66907ef23f4e4068851e3183a0f2da11403293ecf00ca22024a0618a