[INFO] updating cached repository zenmonkeykstop/pals-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zenmonkeykstop/pals-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zenmonkeykstop/pals-in-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/zenmonkeykstop/pals-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/zenmonkeykstop/pals-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zenmonkeykstop/pals-in-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zenmonkeykstop/pals-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zenmonkeykstop/pals-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6de43be739bbbf5644a8d1bc58bf4b3bb5ad981
[INFO] sha for GitHub repo zenmonkeykstop/pals-in-rust: c6de43be739bbbf5644a8d1bc58bf4b3bb5ad981
[INFO] validating manifest of zenmonkeykstop/pals-in-rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zenmonkeykstop/pals-in-rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zenmonkeykstop/pals-in-rust
[INFO] finished frobbing zenmonkeykstop/pals-in-rust
[INFO] frobbed toml for zenmonkeykstop/pals-in-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/zenmonkeykstop/pals-in-rust/Cargo.toml
[INFO] started frobbing zenmonkeykstop/pals-in-rust
[INFO] finished frobbing zenmonkeykstop/pals-in-rust
[INFO] frobbed toml for zenmonkeykstop/pals-in-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zenmonkeykstop/pals-in-rust/Cargo.toml
[INFO] crate zenmonkeykstop/pals-in-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing zenmonkeykstop/pals-in-rust against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/zenmonkeykstop/pals-in-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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] f861885ba1e5947b283f4a2748d9b2af3bd42e23d6e1c98e1250fb5bb3993398
[INFO] running `"docker" "start" "-a" "f861885ba1e5947b283f4a2748d9b2af3bd42e23d6e1c98e1250fb5bb3993398"`
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling pals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     for mut i in 0..testlen {
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `"docker" "inspect" "f861885ba1e5947b283f4a2748d9b2af3bd42e23d6e1c98e1250fb5bb3993398"`
[INFO] running `"docker" "rm" "-f" "f861885ba1e5947b283f4a2748d9b2af3bd42e23d6e1c98e1250fb5bb3993398"`
[INFO] [stdout] f861885ba1e5947b283f4a2748d9b2af3bd42e23d6e1c98e1250fb5bb3993398
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/zenmonkeykstop/pals-in-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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9579458a8197f278a106ac6346a4e39a6c7f48d7b4adeb07c8a25a1de224c77f
[INFO] running `"docker" "start" "-a" "9579458a8197f278a106ac6346a4e39a6c7f48d7b4adeb07c8a25a1de224c77f"`
[INFO] [stderr]    Compiling pals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     for mut i in 0..testlen {
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "9579458a8197f278a106ac6346a4e39a6c7f48d7b4adeb07c8a25a1de224c77f"`
[INFO] running `"docker" "rm" "-f" "9579458a8197f278a106ac6346a4e39a6c7f48d7b4adeb07c8a25a1de224c77f"`
[INFO] [stdout] 9579458a8197f278a106ac6346a4e39a6c7f48d7b4adeb07c8a25a1de224c77f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/zenmonkeykstop/pals-in-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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] fee72fbb75b4f055d823d37af6ce24ec3191ab3d60bfe079d51c2ba9217739af
[INFO] running `"docker" "start" "-a" "fee72fbb75b4f055d823d37af6ce24ec3191ab3d60bfe079d51c2ba9217739af"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pals-eac38813eec1b938
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test pals::tests::test_hamming_distance_val ... ok
[INFO] [stdout] test pals::tests::test_hex_to_bytes ... ok
[INFO] [stdout] test twist::tests::test_lower_n_bits ... ok
[INFO] [stdout] test pals::tests::test_vector_pick_nth ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fee72fbb75b4f055d823d37af6ce24ec3191ab3d60bfe079d51c2ba9217739af"`
[INFO] running `"docker" "rm" "-f" "fee72fbb75b4f055d823d37af6ce24ec3191ab3d60bfe079d51c2ba9217739af"`
[INFO] [stdout] fee72fbb75b4f055d823d37af6ce24ec3191ab3d60bfe079d51c2ba9217739af