Dec 18 02:48:33.707 INFO checking bvtsang/random_curiosity_encoder against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 02:48:33.707 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/bvtsang/random_curiosity_encoder:/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 02:48:34.196 INFO [stdout] 2a63668743d86407b58c1af4d8fd6d422b8e2e51c3a28a5b90cd6c55b2b10c7d
Dec 18 02:48:34.196 INFO running `"docker" "start" "-a" "2a63668743d86407b58c1af4d8fd6d422b8e2e51c3a28a5b90cd6c55b2b10c7d"`
Dec 18 02:48:36.174 INFO [stderr]    Compiling glib-sys v0.3.2
Dec 18 02:48:36.180 INFO [stderr]    Compiling gobject-sys v0.3.2
Dec 18 02:48:36.184 INFO [stderr]    Compiling gio-sys v0.3.2
Dec 18 02:48:36.217 INFO [stderr]    Compiling gdk-pixbuf-sys v0.3.2
Dec 18 02:48:36.218 INFO [stderr]    Compiling cairo-sys-rs v0.3.2
Dec 18 02:48:36.220 INFO [stderr]    Compiling pango-sys v0.3.2
Dec 18 02:48:36.221 INFO [stderr]    Compiling gdk-sys v0.3.2
Dec 18 02:48:36.223 INFO [stderr]    Compiling atk-sys v0.3.2
Dec 18 02:48:40.834 INFO [stderr]    Compiling gtk-sys v0.3.2
Dec 18 02:48:41.141 INFO [stderr]    Compiling gio v0.1.1
Dec 18 02:48:41.181 INFO [stderr]    Compiling cairo-rs v0.1.1
Dec 18 02:48:41.205 INFO [stderr]    Compiling gdk-pixbuf v0.1.1
Dec 18 02:48:41.278 INFO [stderr]    Compiling gdk v0.5.1
Dec 18 02:48:42.857 INFO [stderr]    Compiling gtk v0.1.1
Dec 18 02:48:44.995 INFO [stderr]     Checking glib v0.1.1
Dec 18 02:48:48.505 INFO [stderr]     Checking pango v0.1.1
Dec 18 02:49:14.696 INFO [stderr]     Checking random_curiosity_encoder v0.1.0 (/opt/crater/workdir)
Dec 18 02:49:15.486 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:49:15.486 INFO [stderr]    --> src/main.rs:157:17
Dec 18 02:49:15.486 INFO [stderr]     |
Dec 18 02:49:15.486 INFO [stderr] 157 |                 std::fs::remove_file(file);
Dec 18 02:49:15.486 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:49:15.487 INFO [stderr]     |
Dec 18 02:49:15.487 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 02:49:15.487 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:49:15.487 INFO [stderr] 
Dec 18 02:49:15.574 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:49:15.575 INFO [stderr]    --> src/main.rs:157:17
Dec 18 02:49:15.575 INFO [stderr]     |
Dec 18 02:49:15.575 INFO [stderr] 157 |                 std::fs::remove_file(file);
Dec 18 02:49:15.575 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:49:15.575 INFO [stderr]     |
Dec 18 02:49:15.576 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 02:49:15.576 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:49:15.576 INFO [stderr] 
Dec 18 02:49:15.636 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.59s
Dec 18 02:49:16.648 INFO running `"docker" "inspect" "2a63668743d86407b58c1af4d8fd6d422b8e2e51c3a28a5b90cd6c55b2b10c7d"`
Dec 18 02:49:16.988 INFO running `"docker" "rm" "-f" "2a63668743d86407b58c1af4d8fd6d422b8e2e51c3a28a5b90cd6c55b2b10c7d"`
Dec 18 02:49:17.344 INFO [stdout] 2a63668743d86407b58c1af4d8fd6d422b8e2e51c3a28a5b90cd6c55b2b10c7d