Dec 18 06:56:28.923 INFO checking KeyboardFire/xkcd1537-rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:56:28.923 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/KeyboardFire/xkcd1537-rust:/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 06:56:29.256 INFO [stdout] 306efd541f182d1759416c186d14aceb87c58c6745ba76775b8f3e5230ba2539
Dec 18 06:56:29.258 INFO running `"docker" "start" "-a" "306efd541f182d1759416c186d14aceb87c58c6745ba76775b8f3e5230ba2539"`
Dec 18 06:56:30.680 INFO [stderr]     Checking xkcd1537 v0.0.1 (/opt/crater/workdir)
Dec 18 06:56:31.260 INFO [stderr] warning: unused variable: `n`
Dec 18 06:56:31.260 INFO [stderr]    --> src/main.rs:239:45
Dec 18 06:56:31.260 INFO [stderr]     |
Dec 18 06:56:31.260 INFO [stderr] 239 |             Token::XFunction(Function::Wrap(n)) => { },
Dec 18 06:56:31.260 INFO [stderr]     |                                             ^ help: consider using `_n` instead
Dec 18 06:56:31.260 INFO [stderr]     |
Dec 18 06:56:31.260 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 06:56:31.260 INFO [stderr] 
Dec 18 06:56:31.293 INFO [stderr] warning: variant is never constructed: `XArray`
Dec 18 06:56:31.293 INFO [stderr]   --> src/main.rs:87:5
Dec 18 06:56:31.293 INFO [stderr]    |
Dec 18 06:56:31.293 INFO [stderr] 87 |     XArray(Vec<Token>),
Dec 18 06:56:31.293 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 06:56:31.293 INFO [stderr]    |
Dec 18 06:56:31.293 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:56:31.293 INFO [stderr] 
Dec 18 06:56:31.293 INFO [stderr] warning: function is never used: `exec_rpn`
Dec 18 06:56:31.293 INFO [stderr]    --> src/main.rs:227:1
Dec 18 06:56:31.293 INFO [stderr]     |
Dec 18 06:56:31.293 INFO [stderr] 227 | fn exec_rpn(rpn: Vec<Token>) -> Vec<Token> {
Dec 18 06:56:31.293 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:31.293 INFO [stderr] 
Dec 18 06:56:31.347 INFO [stderr] warning: unused variable: `n`
Dec 18 06:56:31.347 INFO [stderr]    --> src/main.rs:239:45
Dec 18 06:56:31.347 INFO [stderr]     |
Dec 18 06:56:31.347 INFO [stderr] 239 |             Token::XFunction(Function::Wrap(n)) => { },
Dec 18 06:56:31.347 INFO [stderr]     |                                             ^ help: consider using `_n` instead
Dec 18 06:56:31.347 INFO [stderr]     |
Dec 18 06:56:31.347 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 06:56:31.347 INFO [stderr] 
Dec 18 06:56:31.384 INFO [stderr] warning: variant is never constructed: `XArray`
Dec 18 06:56:31.384 INFO [stderr]   --> src/main.rs:87:5
Dec 18 06:56:31.384 INFO [stderr]    |
Dec 18 06:56:31.384 INFO [stderr] 87 |     XArray(Vec<Token>),
Dec 18 06:56:31.384 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 06:56:31.384 INFO [stderr]    |
Dec 18 06:56:31.384 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:56:31.384 INFO [stderr] 
Dec 18 06:56:31.384 INFO [stderr] warning: function is never used: `exec_rpn`
Dec 18 06:56:31.384 INFO [stderr]    --> src/main.rs:227:1
Dec 18 06:56:31.384 INFO [stderr]     |
Dec 18 06:56:31.384 INFO [stderr] 227 | fn exec_rpn(rpn: Vec<Token>) -> Vec<Token> {
Dec 18 06:56:31.384 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:31.384 INFO [stderr] 
Dec 18 06:56:31.415 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
Dec 18 06:56:31.891 INFO running `"docker" "inspect" "306efd541f182d1759416c186d14aceb87c58c6745ba76775b8f3e5230ba2539"`
Dec 18 06:56:32.117 INFO running `"docker" "rm" "-f" "306efd541f182d1759416c186d14aceb87c58c6745ba76775b8f3e5230ba2539"`
Dec 18 06:56:32.353 INFO [stdout] 306efd541f182d1759416c186d14aceb87c58c6745ba76775b8f3e5230ba2539