Dec 19 10:10:24.729 INFO checking richardfontana/mimosa against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 10:10:24.747 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/richardfontana/mimosa:/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 10:10:25.056 INFO [stdout] 2aaaf3809dae8682544ef40d5aa7e3bba285f4b9c13d8bd10bedb641b954a6a8
Dec 19 10:10:25.056 INFO running `"docker" "start" "-a" "2aaaf3809dae8682544ef40d5aa7e3bba285f4b9c13d8bd10bedb641b954a6a8"`
Dec 19 10:10:25.695 INFO [stderr]     Checking mimosa v0.1.0 (/opt/crater/workdir)
Dec 19 10:10:25.824 INFO [stderr] warning: unused variable: `v`
Dec 19 10:10:25.824 INFO [stderr]   --> src/main.rs:26:17
Dec 19 10:10:25.824 INFO [stderr]    |
Dec 19 10:10:25.824 INFO [stderr] 26 |             let v = reduce_to_comments(s, delims);
Dec 19 10:10:25.824 INFO [stderr]    |                 ^ help: consider using `_v` instead
Dec 19 10:10:25.824 INFO [stderr]    |
Dec 19 10:10:25.824 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:10:25.824 INFO [stderr] 
Dec 19 10:10:25.824 INFO [stderr] warning: unused variable: `s`
Dec 19 10:10:25.824 INFO [stderr]   --> src/main.rs:55:23
Dec 19 10:10:25.824 INFO [stderr]    |
Dec 19 10:10:25.824 INFO [stderr] 55 | fn reduce_to_comments(s: String, ds: CommentDelimiters) -> Vec<String> {
Dec 19 10:10:25.824 INFO [stderr]    |                       ^ help: consider using `_s` instead
Dec 19 10:10:25.824 INFO [stderr] 
Dec 19 10:10:25.824 INFO [stderr] warning: unused variable: `ds`
Dec 19 10:10:25.824 INFO [stderr]   --> src/main.rs:55:34
Dec 19 10:10:25.824 INFO [stderr]    |
Dec 19 10:10:25.824 INFO [stderr] 55 | fn reduce_to_comments(s: String, ds: CommentDelimiters) -> Vec<String> {
Dec 19 10:10:25.824 INFO [stderr]    |                                  ^^ help: consider using `_ds` instead
Dec 19 10:10:25.824 INFO [stderr] 
Dec 19 10:10:25.824 INFO [stderr] warning: field is never used: `begin`
Dec 19 10:10:25.824 INFO [stderr]   --> src/main.rs:12:5
Dec 19 10:10:25.824 INFO [stderr]    |
Dec 19 10:10:25.824 INFO [stderr] 12 |     begin: &'static str,
Dec 19 10:10:25.824 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 10:10:25.824 INFO [stderr]    |
Dec 19 10:10:25.825 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 10:10:25.825 INFO [stderr] 
Dec 19 10:10:25.825 INFO [stderr] warning: field is never used: `end`
Dec 19 10:10:25.825 INFO [stderr]   --> src/main.rs:13:5
Dec 19 10:10:25.825 INFO [stderr]    |
Dec 19 10:10:25.825 INFO [stderr] 13 |     end: &'static str,
Dec 19 10:10:25.825 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 10:10:25.825 INFO [stderr] 
Dec 19 10:10:25.834 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:10:25.834 INFO [stderr]   --> src/main.rs:25:13
Dec 19 10:10:25.834 INFO [stderr]    |
Dec 19 10:10:25.834 INFO [stderr] 25 |             fr.read_to_string(&mut s);
Dec 19 10:10:25.834 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:10:25.834 INFO [stderr]    |
Dec 19 10:10:25.834 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 10:10:25.834 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:10:25.834 INFO [stderr] 
Dec 19 10:10:25.836 INFO [stderr] warning: unused variable: `v`
Dec 19 10:10:25.838 INFO [stderr]   --> src/main.rs:26:17
Dec 19 10:10:25.838 INFO [stderr]    |
Dec 19 10:10:25.838 INFO [stderr] 26 |             let v = reduce_to_comments(s, delims);
Dec 19 10:10:25.838 INFO [stderr]    |                 ^ help: consider using `_v` instead
Dec 19 10:10:25.838 INFO [stderr]    |
Dec 19 10:10:25.838 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:10:25.838 INFO [stderr] 
Dec 19 10:10:25.838 INFO [stderr] warning: unused variable: `s`
Dec 19 10:10:25.838 INFO [stderr]   --> src/main.rs:55:23
Dec 19 10:10:25.838 INFO [stderr]    |
Dec 19 10:10:25.838 INFO [stderr] 55 | fn reduce_to_comments(s: String, ds: CommentDelimiters) -> Vec<String> {
Dec 19 10:10:25.838 INFO [stderr]    |                       ^ help: consider using `_s` instead
Dec 19 10:10:25.838 INFO [stderr] 
Dec 19 10:10:25.838 INFO [stderr] warning: unused variable: `ds`
Dec 19 10:10:25.838 INFO [stderr]   --> src/main.rs:55:34
Dec 19 10:10:25.838 INFO [stderr]    |
Dec 19 10:10:25.838 INFO [stderr] 55 | fn reduce_to_comments(s: String, ds: CommentDelimiters) -> Vec<String> {
Dec 19 10:10:25.838 INFO [stderr]    |                                  ^^ help: consider using `_ds` instead
Dec 19 10:10:25.838 INFO [stderr] 
Dec 19 10:10:25.842 INFO [stderr] warning: field is never used: `begin`
Dec 19 10:10:25.842 INFO [stderr]   --> src/main.rs:12:5
Dec 19 10:10:25.842 INFO [stderr]    |
Dec 19 10:10:25.842 INFO [stderr] 12 |     begin: &'static str,
Dec 19 10:10:25.842 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 10:10:25.842 INFO [stderr]    |
Dec 19 10:10:25.842 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 10:10:25.842 INFO [stderr] 
Dec 19 10:10:25.842 INFO [stderr] warning: field is never used: `end`
Dec 19 10:10:25.842 INFO [stderr]   --> src/main.rs:13:5
Dec 19 10:10:25.842 INFO [stderr]    |
Dec 19 10:10:25.842 INFO [stderr] 13 |     end: &'static str,
Dec 19 10:10:25.842 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 10:10:25.842 INFO [stderr] 
Dec 19 10:10:25.855 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:10:25.855 INFO [stderr]   --> src/main.rs:25:13
Dec 19 10:10:25.855 INFO [stderr]    |
Dec 19 10:10:25.855 INFO [stderr] 25 |             fr.read_to_string(&mut s);
Dec 19 10:10:25.855 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:10:25.855 INFO [stderr]    |
Dec 19 10:10:25.855 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 10:10:25.855 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:10:25.855 INFO [stderr] 
Dec 19 10:10:25.861 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
Dec 19 10:10:26.146 INFO running `"docker" "inspect" "2aaaf3809dae8682544ef40d5aa7e3bba285f4b9c13d8bd10bedb641b954a6a8"`
Dec 19 10:10:26.262 INFO running `"docker" "rm" "-f" "2aaaf3809dae8682544ef40d5aa7e3bba285f4b9c13d8bd10bedb641b954a6a8"`
Dec 19 10:10:26.344 INFO [stdout] 2aaaf3809dae8682544ef40d5aa7e3bba285f4b9c13d8bd10bedb641b954a6a8