Dec 17 13:29:44.955 INFO checking tkyk0317/rcc against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 13:29:44.955 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/tkyk0317/rcc:/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 17 13:29:45.410 INFO [stdout] 6229364e12ee8447645e93f4a468417c8648d63e87877e87e5c376217bb6186b
Dec 17 13:29:45.412 INFO running `"docker" "start" "-a" "6229364e12ee8447645e93f4a468417c8648d63e87877e87e5c376217bb6186b"`
Dec 17 13:29:47.452 INFO [stderr]     Checking rcc v0.1.0 (/opt/crater/workdir)
Dec 17 13:29:49.286 INFO [stderr] warning: field is never used: `func_table`
Dec 17 13:29:49.286 INFO [stderr]   --> src/asm.rs:84:5
Dec 17 13:29:49.286 INFO [stderr]    |
Dec 17 13:29:49.286 INFO [stderr] 84 |     func_table: &'a SymbolTable,
Dec 17 13:29:49.286 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:29:49.286 INFO [stderr]    |
Dec 17 13:29:49.286 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 13:29:49.286 INFO [stderr] 
Dec 17 13:29:49.286 INFO [stderr] warning: struct is never constructed: `StringData`
Dec 17 13:29:49.286 INFO [stderr]  --> src/string.rs:2:1
Dec 17 13:29:49.286 INFO [stderr]   |
Dec 17 13:29:49.286 INFO [stderr] 2 | pub struct StringData {
Dec 17 13:29:49.286 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:29:49.286 INFO [stderr] 
Dec 17 13:29:49.286 INFO [stderr] warning: method is never used: `new`
Dec 17 13:29:49.286 INFO [stderr]   --> src/string.rs:10:5
Dec 17 13:29:49.286 INFO [stderr]    |
Dec 17 13:29:49.286 INFO [stderr] 10 |     pub fn new() -> StringData {
Dec 17 13:29:49.286 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:29:49.286 INFO [stderr] 
Dec 17 13:29:49.286 INFO [stderr] warning: method is never used: `push`
Dec 17 13:29:49.286 INFO [stderr]   --> src/string.rs:20:5
Dec 17 13:29:49.286 INFO [stderr]    |
Dec 17 13:29:49.286 INFO [stderr] 20 |     pub fn push(&mut self, c: char) {
Dec 17 13:29:49.286 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:29:49.286 INFO [stderr] 
Dec 17 13:29:51.102 INFO [stderr] warning: field is never used: `func_table`
Dec 17 13:29:51.102 INFO [stderr]   --> src/asm.rs:84:5
Dec 17 13:29:51.102 INFO [stderr]    |
Dec 17 13:29:51.102 INFO [stderr] 84 |     func_table: &'a SymbolTable,
Dec 17 13:29:51.102 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 13:29:51.102 INFO [stderr]    |
Dec 17 13:29:51.102 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 13:29:51.102 INFO [stderr] 
Dec 17 13:29:51.195 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.77s
Dec 17 13:29:52.116 INFO running `"docker" "inspect" "6229364e12ee8447645e93f4a468417c8648d63e87877e87e5c376217bb6186b"`
Dec 17 13:29:52.440 INFO running `"docker" "rm" "-f" "6229364e12ee8447645e93f4a468417c8648d63e87877e87e5c376217bb6186b"`
Dec 17 13:29:52.724 INFO [stdout] 6229364e12ee8447645e93f4a468417c8648d63e87877e87e5c376217bb6186b