Dec 19 06:16:50.141 INFO checking vakabus/rumipsem against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:16:50.141 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/vakabus/rumipsem:/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 06:16:50.645 INFO [stdout] c4c25fb6d22f8eae9b9bffe57ee853d5b087bb17b29f73505d41619028b52cf4
Dec 19 06:16:50.647 INFO running `"docker" "start" "-a" "c4c25fb6d22f8eae9b9bffe57ee853d5b087bb17b29f73505d41619028b52cf4"`
Dec 19 06:16:51.900 INFO [stderr]     Checking plain v0.2.3
Dec 19 06:16:51.901 INFO [stderr]     Checking scroll v0.7.0
Dec 19 06:16:51.901 INFO [stderr]     Checking argparse v0.2.1
Dec 19 06:16:51.901 INFO [stderr]    Compiling num-integer v0.1.38
Dec 19 06:16:51.901 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 19 06:16:51.903 INFO [stderr]     Checking time v0.1.39
Dec 19 06:16:51.903 INFO [stderr]     Checking term v0.5.1
Dec 19 06:16:51.903 INFO [stderr]     Checking nix v0.11.0
Dec 19 06:16:52.234 INFO [stderr]    Compiling scroll_derive v0.7.0
Dec 19 06:16:52.468 INFO [stderr]     Checking serde_json v1.0.19
Dec 19 06:16:54.611 INFO [stderr]     Checking chrono v0.4.3
Dec 19 06:16:56.009 INFO [stderr]     Checking goblin v0.0.11
Dec 19 06:16:56.588 INFO [stderr]     Checking flate2 v0.2.20
Dec 19 06:16:57.876 INFO [stderr]     Checking simplelog v0.5.2
Dec 19 06:17:04.247 INFO [stderr]     Checking rumipsem v0.1.0 (/opt/crater/workdir)
Dec 19 06:17:06.774 INFO [stderr] warning: variant is never constructed: `FlowChangeImmediate`
Dec 19 06:17:06.774 INFO [stderr]   --> src/cpu/event.rs:10:5
Dec 19 06:17:06.774 INFO [stderr]    |
Dec 19 06:17:06.774 INFO [stderr] 10 |     FlowChangeImmediate(u32), // this is here to support compact branch
Dec 19 06:17:06.774 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:17:06.774 INFO [stderr]    |
Dec 19 06:17:06.774 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 06:17:06.774 INFO [stderr] 
Dec 19 06:17:06.775 INFO [stderr] warning: constant item is never used: `RETURN_ADDRESS`
Dec 19 06:17:06.775 INFO [stderr]   --> src/cpu/registers.rs:10:1
Dec 19 06:17:06.775 INFO [stderr]    |
Dec 19 06:17:06.775 INFO [stderr] 10 | pub const RETURN_ADDRESS: u32 = 31;
Dec 19 06:17:06.776 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:17:06.776 INFO [stderr] 
Dec 19 06:17:06.776 INFO [stderr] warning: method is never used: `get_instruction_number`
Dec 19 06:17:06.776 INFO [stderr]   --> src/cpu/watchdog.rs:43:5
Dec 19 06:17:06.776 INFO [stderr]    |
Dec 19 06:17:06.776 INFO [stderr] 43 |     pub fn get_instruction_number(&self) -> usize {
Dec 19 06:17:06.776 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:17:06.776 INFO [stderr] 
Dec 19 06:17:06.776 INFO [stderr] warning: method is never used: `disable_trace_checking`
Dec 19 06:17:06.776 INFO [stderr]    --> src/cpu/watchdog.rs:102:5
Dec 19 06:17:06.776 INFO [stderr]     |
Dec 19 06:17:06.776 INFO [stderr] 102 |     pub fn disable_trace_checking(&mut self) {
Dec 19 06:17:06.776 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:17:06.776 INFO [stderr] 
Dec 19 06:17:06.800 INFO [stderr] warning: variant is never constructed: `FlowChangeImmediate`
Dec 19 06:17:06.800 INFO [stderr]   --> src/cpu/event.rs:10:5
Dec 19 06:17:06.800 INFO [stderr]    |
Dec 19 06:17:06.800 INFO [stderr] 10 |     FlowChangeImmediate(u32), // this is here to support compact branch
Dec 19 06:17:06.800 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:17:06.800 INFO [stderr]    |
Dec 19 06:17:06.800 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 06:17:06.800 INFO [stderr] 
Dec 19 06:17:06.800 INFO [stderr] warning: constant item is never used: `RETURN_ADDRESS`
Dec 19 06:17:06.800 INFO [stderr]   --> src/cpu/registers.rs:10:1
Dec 19 06:17:06.800 INFO [stderr]    |
Dec 19 06:17:06.800 INFO [stderr] 10 | pub const RETURN_ADDRESS: u32 = 31;
Dec 19 06:17:06.800 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:17:06.800 INFO [stderr] 
Dec 19 06:17:06.800 INFO [stderr] warning: method is never used: `get_instruction_number`
Dec 19 06:17:06.800 INFO [stderr]   --> src/cpu/watchdog.rs:43:5
Dec 19 06:17:06.800 INFO [stderr]    |
Dec 19 06:17:06.800 INFO [stderr] 43 |     pub fn get_instruction_number(&self) -> usize {
Dec 19 06:17:06.800 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:17:06.800 INFO [stderr] 
Dec 19 06:17:06.800 INFO [stderr] warning: method is never used: `disable_trace_checking`
Dec 19 06:17:06.800 INFO [stderr]    --> src/cpu/watchdog.rs:102:5
Dec 19 06:17:06.800 INFO [stderr]     |
Dec 19 06:17:06.800 INFO [stderr] 102 |     pub fn disable_trace_checking(&mut self) {
Dec 19 06:17:06.800 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:17:06.800 INFO [stderr] 
Dec 19 06:17:06.855 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.08s
Dec 19 06:17:07.120 INFO running `"docker" "inspect" "c4c25fb6d22f8eae9b9bffe57ee853d5b087bb17b29f73505d41619028b52cf4"`
Dec 19 06:17:07.228 INFO running `"docker" "rm" "-f" "c4c25fb6d22f8eae9b9bffe57ee853d5b087bb17b29f73505d41619028b52cf4"`
Dec 19 06:17:07.336 INFO [stdout] c4c25fb6d22f8eae9b9bffe57ee853d5b087bb17b29f73505d41619028b52cf4