[INFO] updating cached repository jeenalee/bin-to-dna
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jeenalee/bin-to-dna
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jeenalee/bin-to-dna" "work/ex/beta-1.38-1/sources/1.37.0/gh/jeenalee/bin-to-dna"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jeenalee/bin-to-dna'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jeenalee/bin-to-dna" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jeenalee/bin-to-dna"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jeenalee/bin-to-dna'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 23888d1707d40a18dcb817c7b6e71e35e77ccecc
[INFO] sha for GitHub repo jeenalee/bin-to-dna: 23888d1707d40a18dcb817c7b6e71e35e77ccecc
[INFO] validating manifest of jeenalee/bin-to-dna 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 jeenalee/bin-to-dna 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 jeenalee/bin-to-dna
[INFO] finished frobbing jeenalee/bin-to-dna
[INFO] frobbed toml for jeenalee/bin-to-dna written to work/ex/beta-1.38-1/sources/1.37.0/gh/jeenalee/bin-to-dna/Cargo.toml
[INFO] started frobbing jeenalee/bin-to-dna
[INFO] finished frobbing jeenalee/bin-to-dna
[INFO] frobbed toml for jeenalee/bin-to-dna written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jeenalee/bin-to-dna/Cargo.toml
[INFO] crate jeenalee/bin-to-dna 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 jeenalee/bin-to-dna against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jeenalee/bin-to-dna:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d8ca835a11dc8e2e488b89fbb83c49fcd64cdfe9661d974c9ead4dd3c4716b28
[INFO] running `"docker" "start" "-a" "d8ca835a11dc8e2e488b89fbb83c49fcd64cdfe9661d974c9ead4dd3c4716b28"`
[INFO] [stderr]    Compiling min-max-heap v0.2.1
[INFO] [stderr]    Compiling balanced-bin-to-dna v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:199:44
[INFO] [stderr]     |
[INFO] [stderr] 199 |                     (None, _, _, _) => Err(("Unexpectedly reached the end of the tree.")),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:200:30
[INFO] [stderr]     |
[INFO] [stderr] 200 |                     _ => Err(("Bad encoding of trits. The trit doesn't correspond to bytes in the tree.")),
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "d8ca835a11dc8e2e488b89fbb83c49fcd64cdfe9661d974c9ead4dd3c4716b28"`
[INFO] running `"docker" "rm" "-f" "d8ca835a11dc8e2e488b89fbb83c49fcd64cdfe9661d974c9ead4dd3c4716b28"`
[INFO] [stdout] d8ca835a11dc8e2e488b89fbb83c49fcd64cdfe9661d974c9ead4dd3c4716b28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jeenalee/bin-to-dna:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0e1b5a2773913cda3693b63545410dbf87917a7b9757e76057df5b74b0ede894
[INFO] running `"docker" "start" "-a" "0e1b5a2773913cda3693b63545410dbf87917a7b9757e76057df5b74b0ede894"`
[INFO] [stderr]    Compiling balanced-bin-to-dna v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:199:44
[INFO] [stderr]     |
[INFO] [stderr] 199 |                     (None, _, _, _) => Err(("Unexpectedly reached the end of the tree.")),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/main.rs:200:30
[INFO] [stderr]     |
[INFO] [stderr] 200 |                     _ => Err(("Bad encoding of trits. The trit doesn't correspond to bytes in the tree.")),
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "0e1b5a2773913cda3693b63545410dbf87917a7b9757e76057df5b74b0ede894"`
[INFO] running `"docker" "rm" "-f" "0e1b5a2773913cda3693b63545410dbf87917a7b9757e76057df5b74b0ede894"`
[INFO] [stdout] 0e1b5a2773913cda3693b63545410dbf87917a7b9757e76057df5b74b0ede894
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jeenalee/bin-to-dna:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 789a990488973f2c61e210901437831a8574118571e88b275403aeca7a2a0cb3
[INFO] running `"docker" "start" "-a" "789a990488973f2c61e210901437831a8574118571e88b275403aeca7a2a0cb3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/balanced_bin_to_dna-5ffa96d000d18032
[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" "789a990488973f2c61e210901437831a8574118571e88b275403aeca7a2a0cb3"`
[INFO] running `"docker" "rm" "-f" "789a990488973f2c61e210901437831a8574118571e88b275403aeca7a2a0cb3"`
[INFO] [stdout] 789a990488973f2c61e210901437831a8574118571e88b275403aeca7a2a0cb3