[INFO] updating cached repository dihedral-codes/rust-rref-binary
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dihedral-codes/rust-rref-binary
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dihedral-codes/rust-rref-binary" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dihedral-codes/rust-rref-binary"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dihedral-codes/rust-rref-binary'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dihedral-codes/rust-rref-binary" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/dihedral-codes/rust-rref-binary"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/dihedral-codes/rust-rref-binary'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a5ca8a0906ecbacb3a6c8abec67f627658912f67
[INFO] sha for GitHub repo dihedral-codes/rust-rref-binary: a5ca8a0906ecbacb3a6c8abec67f627658912f67
[INFO] validating manifest of dihedral-codes/rust-rref-binary on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dihedral-codes/rust-rref-binary on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dihedral-codes/rust-rref-binary
[INFO] finished frobbing dihedral-codes/rust-rref-binary
[INFO] frobbed toml for dihedral-codes/rust-rref-binary written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dihedral-codes/rust-rref-binary/Cargo.toml
[INFO] started frobbing dihedral-codes/rust-rref-binary
[INFO] finished frobbing dihedral-codes/rust-rref-binary
[INFO] frobbed toml for dihedral-codes/rust-rref-binary written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/dihedral-codes/rust-rref-binary/Cargo.toml
[INFO] crate dihedral-codes/rust-rref-binary has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dihedral-codes/rust-rref-binary against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dihedral-codes/rust-rref-binary:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 1aa133f69447f94aaa4b9ba81622bfb5433a8048a8b62603e9c91f61fc6e1621
[INFO] running `"docker" "start" "-a" "1aa133f69447f94aaa4b9ba81622bfb5433a8048a8b62603e9c91f61fc6e1621"`
[INFO] [stderr]    Compiling rust-rref-binary v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `printmat`
[INFO] [stderr]   --> src/main.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn printmat(matrix:[u64; N]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "1aa133f69447f94aaa4b9ba81622bfb5433a8048a8b62603e9c91f61fc6e1621"`
[INFO] running `"docker" "rm" "-f" "1aa133f69447f94aaa4b9ba81622bfb5433a8048a8b62603e9c91f61fc6e1621"`
[INFO] [stdout] 1aa133f69447f94aaa4b9ba81622bfb5433a8048a8b62603e9c91f61fc6e1621
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dihedral-codes/rust-rref-binary:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] f0c48c998ced780e60bbdfa45dded4c4685cf3661e79e0e85a4bd1062e9180f0
[INFO] running `"docker" "start" "-a" "f0c48c998ced780e60bbdfa45dded4c4685cf3661e79e0e85a4bd1062e9180f0"`
[INFO] [stderr]    Compiling rust-rref-binary v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `printmat`
[INFO] [stderr]   --> src/main.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn printmat(matrix:[u64; N]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "f0c48c998ced780e60bbdfa45dded4c4685cf3661e79e0e85a4bd1062e9180f0"`
[INFO] running `"docker" "rm" "-f" "f0c48c998ced780e60bbdfa45dded4c4685cf3661e79e0e85a4bd1062e9180f0"`
[INFO] [stdout] f0c48c998ced780e60bbdfa45dded4c4685cf3661e79e0e85a4bd1062e9180f0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/dihedral-codes/rust-rref-binary:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 1ca89be1b6b67a22a9e2b6e825b7a229e471cf95ca77283ba5136ae3e68bf664
[INFO] running `"docker" "start" "-a" "1ca89be1b6b67a22a9e2b6e825b7a229e471cf95ca77283ba5136ae3e68bf664"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_rref_binary-6162e0d2f6297a55
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1ca89be1b6b67a22a9e2b6e825b7a229e471cf95ca77283ba5136ae3e68bf664"`
[INFO] running `"docker" "rm" "-f" "1ca89be1b6b67a22a9e2b6e825b7a229e471cf95ca77283ba5136ae3e68bf664"`
[INFO] [stdout] 1ca89be1b6b67a22a9e2b6e825b7a229e471cf95ca77283ba5136ae3e68bf664