[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-1.38-1/sources/1.37.0/gh/zenmonkeykstop/pals-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/zenmonkeykstop/pals-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zenmonkeykstop/pals-in-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zenmonkeykstop/pals-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zenmonkeykstop/pals-in-rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing zenmonkeykstop/pals-in-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 83ef44abf3214ce3309802f38e2ce7f2c12a4e16d602b21585dd05c6499d8478
[INFO] running `"docker" "start" "-a" "83ef44abf3214ce3309802f38e2ce7f2c12a4e16d602b21585dd05c6499d8478"`
[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 3.74s
[INFO] running `"docker" "inspect" "83ef44abf3214ce3309802f38e2ce7f2c12a4e16d602b21585dd05c6499d8478"`
[INFO] running `"docker" "rm" "-f" "83ef44abf3214ce3309802f38e2ce7f2c12a4e16d602b21585dd05c6499d8478"`
[INFO] [stdout] 83ef44abf3214ce3309802f38e2ce7f2c12a4e16d602b21585dd05c6499d8478
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] aa2b1bd51a393bd9ec787c56b7fea6c5c21e034c31ef099a295cb1365513577e
[INFO] running `"docker" "start" "-a" "aa2b1bd51a393bd9ec787c56b7fea6c5c21e034c31ef099a295cb1365513577e"`
[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 1.55s
[INFO] running `"docker" "inspect" "aa2b1bd51a393bd9ec787c56b7fea6c5c21e034c31ef099a295cb1365513577e"`
[INFO] running `"docker" "rm" "-f" "aa2b1bd51a393bd9ec787c56b7fea6c5c21e034c31ef099a295cb1365513577e"`
[INFO] [stdout] aa2b1bd51a393bd9ec787c56b7fea6c5c21e034c31ef099a295cb1365513577e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 88db8ae243cf4d3a4c6baea08511e2deac53e96c950b30615f42924e853aeb34
[INFO] running `"docker" "start" "-a" "88db8ae243cf4d3a4c6baea08511e2deac53e96c950b30615f42924e853aeb34"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pals-9c2bc023a7da15ca
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test pals::tests::test_hamming_distance_val ... ok
[INFO] [stdout] test twist::tests::test_lower_n_bits ... ok
[INFO] [stdout] test pals::tests::test_hex_to_bytes ... 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" "88db8ae243cf4d3a4c6baea08511e2deac53e96c950b30615f42924e853aeb34"`
[INFO] running `"docker" "rm" "-f" "88db8ae243cf4d3a4c6baea08511e2deac53e96c950b30615f42924e853aeb34"`
[INFO] [stdout] 88db8ae243cf4d3a4c6baea08511e2deac53e96c950b30615f42924e853aeb34