[INFO] updating cached repository alfanick/xxcalc-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alfanick/xxcalc-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alfanick/xxcalc-rs" "work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/alfanick/xxcalc-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/alfanick/xxcalc-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alfanick/xxcalc-rs" "work/ex/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/gh/alfanick/xxcalc-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/gh/alfanick/xxcalc-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3cc7df7dc2348a75252b37878076c291adad4ba5
[INFO] sha for GitHub repo alfanick/xxcalc-rs: 3cc7df7dc2348a75252b37878076c291adad4ba5
[INFO] validating manifest of alfanick/xxcalc-rs on toolchain master#003382e4150984cb476047b3925edf8d75df2d59
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alfanick/xxcalc-rs on toolchain try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+47f4f94676fbdd494dd2c2dc9ac377a13fc78e00-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing alfanick/xxcalc-rs
[INFO] finished frobbing alfanick/xxcalc-rs
[INFO] frobbed toml for alfanick/xxcalc-rs written to work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/alfanick/xxcalc-rs/Cargo.toml
[INFO] started frobbing alfanick/xxcalc-rs
[INFO] finished frobbing alfanick/xxcalc-rs
[INFO] frobbed toml for alfanick/xxcalc-rs written to work/ex/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/gh/alfanick/xxcalc-rs/Cargo.toml
[INFO] crate alfanick/xxcalc-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+47f4f94676fbdd494dd2c2dc9ac377a13fc78e00-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking alfanick/xxcalc-rs against master#003382e4150984cb476047b3925edf8d75df2d59 for pr-59527
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59527/worker-4/master#003382e4150984cb476047b3925edf8d75df2d59:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/alfanick/xxcalc-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c3d83a6dd9679409882f89b1148f0465f5b58c1fe99d94b4a23e51b32f97a945
[INFO] running `"docker" "start" "-a" "c3d83a6dd9679409882f89b1148f0465f5b58c1fe99d94b4a23e51b32f97a945"`
[INFO] [stderr]     Checking smallvec v0.3.1
[INFO] [stderr]     Checking xxcalc v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/tokenizer.rs:265:1
[INFO] [stderr]     |
[INFO] [stderr] 265 | / macro_rules! tokenize {
[INFO] [stderr] 266 | |   ($x:expr) => (Tokenizer::default().process($x).to_owned())
[INFO] [stderr] 267 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/tokenizer.rs:269:1
[INFO] [stderr]     |
[INFO] [stderr] 269 | / macro_rules! tokenize_ref {
[INFO] [stderr] 270 | |   ($x:expr) => (Tokenizer::default().process($x))
[INFO] [stderr] 271 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/tokenizer.rs:265:1
[INFO] [stderr]     |
[INFO] [stderr] 265 | / macro_rules! tokenize {
[INFO] [stderr] 266 | |   ($x:expr) => (Tokenizer::default().process($x).to_owned())
[INFO] [stderr] 267 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/polynomial.rs:416:5
[INFO] [stderr]     |
[INFO] [stderr] 416 |     self + &other;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/polynomial.rs:500:5
[INFO] [stderr]     |
[INFO] [stderr] 500 |     self - &other;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/polynomial.rs:596:5
[INFO] [stderr]     |
[INFO] [stderr] 596 |     self * &other;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::ops::Mul::mul` that must be used
[INFO] [stderr]    --> src/polynomial.rs:618:5
[INFO] [stderr]     |
[INFO] [stderr] 618 |     self.mul(other);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/polynomial.rs:416:5
[INFO] [stderr]     |
[INFO] [stderr] 416 |     self + &other;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/polynomial.rs:500:5
[INFO] [stderr]     |
[INFO] [stderr] 500 |     self - &other;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/polynomial.rs:596:5
[INFO] [stderr]     |
[INFO] [stderr] 596 |     self * &other;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::ops::Mul::mul` that must be used
[INFO] [stderr]    --> src/polynomial.rs:618:5
[INFO] [stderr]     |
[INFO] [stderr] 618 |     self.mul(other);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.51s
[INFO] running `"docker" "inspect" "c3d83a6dd9679409882f89b1148f0465f5b58c1fe99d94b4a23e51b32f97a945"`
[INFO] running `"docker" "rm" "-f" "c3d83a6dd9679409882f89b1148f0465f5b58c1fe99d94b4a23e51b32f97a945"`
[INFO] [stdout] c3d83a6dd9679409882f89b1148f0465f5b58c1fe99d94b4a23e51b32f97a945