Dec 11 21:15:50.781 INFO checking bvtsang/random_curiosity_encoder against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 21:15:50.781 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 21:15:51.342 INFO [stdout] 37220c8954e830edb3a33e3542ce296838c55a35b2a31ffeeae0976d8c73030a
Dec 11 21:15:51.344 INFO running `"docker" "start" "-a" "37220c8954e830edb3a33e3542ce296838c55a35b2a31ffeeae0976d8c73030a"`
Dec 11 21:15:53.488 INFO [stderr] usermod: no changes
Dec 11 21:15:53.697 INFO [stderr]    Compiling gdk-pixbuf v0.1.1
Dec 11 21:15:53.697 INFO [stderr]    Compiling cairo-rs v0.1.1
Dec 11 21:15:53.708 INFO [stderr]    Compiling gio v0.1.1
Dec 11 21:15:53.708 INFO [stderr]    Compiling gdk v0.5.1
Dec 11 21:15:53.716 INFO [stderr]    Compiling gtk v0.1.1
Dec 11 21:15:53.724 INFO [stderr]    Compiling gio-sys v0.3.2
Dec 11 21:15:53.724 INFO [stderr]    Compiling pango-sys v0.3.2
Dec 11 21:15:53.724 INFO [stderr]    Compiling cairo-sys-rs v0.3.2
Dec 11 21:15:57.676 INFO [stderr]    Compiling gdk-pixbuf-sys v0.3.2
Dec 11 21:15:57.685 INFO [stderr]    Compiling gdk-sys v0.3.2
Dec 11 21:15:57.689 INFO [stderr]    Compiling gtk-sys v0.3.2
Dec 11 21:15:57.761 INFO [stderr]     Checking glib-sys v0.3.2
Dec 11 21:16:03.338 INFO [stderr]     Checking gobject-sys v0.3.2
Dec 11 21:16:04.196 INFO [stderr]     Checking glib v0.1.1
Dec 11 21:16:04.197 INFO [stderr]     Checking atk-sys v0.3.2
Dec 11 21:16:08.162 INFO [stderr]     Checking pango v0.1.1
Dec 11 21:16:36.556 INFO [stderr]     Checking random_curiosity_encoder v0.1.0 (/source)
Dec 11 21:16:38.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 21:16:38.684 INFO [stderr]    --> src/main.rs:157:17
Dec 11 21:16:38.684 INFO [stderr]     |
Dec 11 21:16:38.684 INFO [stderr] 157 |                 std::fs::remove_file(file);
Dec 11 21:16:38.684 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:16:38.684 INFO [stderr]     |
Dec 11 21:16:38.684 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 21:16:38.684 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 21:16:38.684 INFO [stderr] 
Dec 11 21:16:38.902 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 21:16:38.902 INFO [stderr]    --> src/main.rs:157:17
Dec 11 21:16:38.902 INFO [stderr]     |
Dec 11 21:16:38.902 INFO [stderr] 157 |                 std::fs::remove_file(file);
Dec 11 21:16:38.902 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:16:38.902 INFO [stderr]     |
Dec 11 21:16:38.902 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 21:16:38.902 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 21:16:38.902 INFO [stderr] 
Dec 11 21:16:38.926 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.39s
Dec 11 21:16:38.940 INFO [stderr] su: No module specific data is present
Dec 11 21:16:40.187 INFO running `"docker" "inspect" "37220c8954e830edb3a33e3542ce296838c55a35b2a31ffeeae0976d8c73030a"`
Dec 11 21:16:40.550 INFO running `"docker" "rm" "-f" "37220c8954e830edb3a33e3542ce296838c55a35b2a31ffeeae0976d8c73030a"`
Dec 11 21:16:40.912 INFO [stdout] 37220c8954e830edb3a33e3542ce296838c55a35b2a31ffeeae0976d8c73030a