Dec 18 01:16:31.693 INFO checking dlukes/simplify-tags against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 01:16:31.693 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/dlukes/simplify-tags:/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 01:16:31.885 INFO [stdout] b5756cbd5e3579a48b796ffacdf25b64ebbfcdb62286cd4a3539d204e2a5dc82
Dec 18 01:16:31.890 INFO running `"docker" "start" "-a" "b5756cbd5e3579a48b796ffacdf25b64ebbfcdb62286cd4a3539d204e2a5dc82"`
Dec 18 01:16:32.556 INFO [stderr]     Checking regex v0.2.10
Dec 18 01:16:34.450 INFO [stderr]     Checking simplify_tags v0.1.0 (/opt/crater/workdir)
Dec 18 01:16:35.964 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:35.964 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 18 01:16:35.964 INFO [stderr]     |
Dec 18 01:16:35.964 INFO [stderr] 102 |     stdout.flush();
Dec 18 01:16:35.964 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 18 01:16:35.968 INFO [stderr]     |
Dec 18 01:16:35.968 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:35.968 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:35.968 INFO [stderr] 
Dec 18 01:16:36.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.036 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 18 01:16:36.036 INFO [stderr]    |
Dec 18 01:16:36.036 INFO [stderr] 28 |     stdout.flush();
Dec 18 01:16:36.036 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.036 INFO [stderr]    |
Dec 18 01:16:36.036 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.036 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.036 INFO [stderr] 
Dec 18 01:16:36.152 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.152 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 18 01:16:36.152 INFO [stderr]    |
Dec 18 01:16:36.152 INFO [stderr] 78 |     stdout.flush();
Dec 18 01:16:36.152 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.152 INFO [stderr]    |
Dec 18 01:16:36.152 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.152 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.152 INFO [stderr] 
Dec 18 01:16:36.176 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.176 INFO [stderr]    --> src/bin/05-vetveni_bez_zbytecnych_alokaci.rs:102:5
Dec 18 01:16:36.176 INFO [stderr]     |
Dec 18 01:16:36.176 INFO [stderr] 102 |     stdout.flush();
Dec 18 01:16:36.176 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.176 INFO [stderr]     |
Dec 18 01:16:36.176 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.177 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.177 INFO [stderr] 
Dec 18 01:16:36.225 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.225 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 18 01:16:36.225 INFO [stderr]    |
Dec 18 01:16:36.225 INFO [stderr] 56 |     stdout.flush();
Dec 18 01:16:36.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.225 INFO [stderr]    |
Dec 18 01:16:36.225 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.225 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.225 INFO [stderr] 
Dec 18 01:16:36.260 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.260 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 18 01:16:36.260 INFO [stderr]    |
Dec 18 01:16:36.260 INFO [stderr] 28 |     stdout.flush();
Dec 18 01:16:36.260 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.260 INFO [stderr]    |
Dec 18 01:16:36.260 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.260 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.260 INFO [stderr] 
Dec 18 01:16:36.721 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:36.721 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 18 01:16:36.721 INFO [stderr]    |
Dec 18 01:16:36.721 INFO [stderr] 81 |     stdout.flush();
Dec 18 01:16:36.721 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:36.721 INFO [stderr]    |
Dec 18 01:16:36.721 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:36.721 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:36.721 INFO [stderr] 
Dec 18 01:16:37.332 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:37.332 INFO [stderr]   --> src/bin/04-vetveni.rs:81:5
Dec 18 01:16:37.332 INFO [stderr]    |
Dec 18 01:16:37.332 INFO [stderr] 81 |     stdout.flush();
Dec 18 01:16:37.332 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:37.332 INFO [stderr]    |
Dec 18 01:16:37.332 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:37.332 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:37.332 INFO [stderr] 
Dec 18 01:16:37.448 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:37.448 INFO [stderr]   --> src/bin/02-min_alokaci.rs:28:5
Dec 18 01:16:37.448 INFO [stderr]    |
Dec 18 01:16:37.448 INFO [stderr] 28 |     stdout.flush();
Dec 18 01:16:37.448 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:37.448 INFO [stderr]    |
Dec 18 01:16:37.448 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:37.448 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:37.448 INFO [stderr] 
Dec 18 01:16:37.524 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:37.524 INFO [stderr]   --> src/bin/03-jen_main.rs:56:5
Dec 18 01:16:37.524 INFO [stderr]    |
Dec 18 01:16:37.524 INFO [stderr] 56 |     stdout.flush();
Dec 18 01:16:37.524 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:37.524 INFO [stderr]    |
Dec 18 01:16:37.524 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:37.524 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:37.524 INFO [stderr] 
Dec 18 01:16:37.564 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:37.564 INFO [stderr]   --> src/bin/01-drobnosti.rs:28:5
Dec 18 01:16:37.564 INFO [stderr]    |
Dec 18 01:16:37.564 INFO [stderr] 28 |     stdout.flush();
Dec 18 01:16:37.564 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:37.564 INFO [stderr]    |
Dec 18 01:16:37.564 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:37.564 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:37.568 INFO [stderr] 
Dec 18 01:16:37.648 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 01:16:37.648 INFO [stderr]   --> src/bin/06-bez_parsovani_utf8.rs:78:5
Dec 18 01:16:37.648 INFO [stderr]    |
Dec 18 01:16:37.648 INFO [stderr] 78 |     stdout.flush();
Dec 18 01:16:37.648 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 01:16:37.660 INFO [stderr]    |
Dec 18 01:16:37.660 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 01:16:37.660 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 01:16:37.660 INFO [stderr] 
Dec 18 01:16:37.717 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.20s
Dec 18 01:16:38.538 INFO running `"docker" "inspect" "b5756cbd5e3579a48b796ffacdf25b64ebbfcdb62286cd4a3539d204e2a5dc82"`
Dec 18 01:16:38.832 INFO running `"docker" "rm" "-f" "b5756cbd5e3579a48b796ffacdf25b64ebbfcdb62286cd4a3539d204e2a5dc82"`
Dec 18 01:16:39.092 INFO [stdout] b5756cbd5e3579a48b796ffacdf25b64ebbfcdb62286cd4a3539d204e2a5dc82