[INFO] updating cached repository izflare/Huffman-coding
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/izflare/Huffman-coding
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/izflare/Huffman-coding" "work/ex/beta-1.38-1/sources/1.37.0/gh/izflare/Huffman-coding"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/izflare/Huffman-coding'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/izflare/Huffman-coding" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/izflare/Huffman-coding"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/izflare/Huffman-coding'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 58bcc5fe8f93ad42b8482d75d78ff2eef1789696
[INFO] sha for GitHub repo izflare/Huffman-coding: 58bcc5fe8f93ad42b8482d75d78ff2eef1789696
[INFO] validating manifest of izflare/Huffman-coding 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 izflare/Huffman-coding 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 izflare/Huffman-coding
[INFO] finished frobbing izflare/Huffman-coding
[INFO] frobbed toml for izflare/Huffman-coding written to work/ex/beta-1.38-1/sources/1.37.0/gh/izflare/Huffman-coding/Cargo.toml
[INFO] started frobbing izflare/Huffman-coding
[INFO] finished frobbing izflare/Huffman-coding
[INFO] frobbed toml for izflare/Huffman-coding written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/izflare/Huffman-coding/Cargo.toml
[INFO] crate izflare/Huffman-coding 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 izflare/Huffman-coding 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-1/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/izflare/Huffman-coding:/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] 73113f5ca4f0de9ce9b8a37298413213bc3c2db1271d06df23f5f218bf132e80
[INFO] running `"docker" "start" "-a" "73113f5ca4f0de9ce9b8a37298413213bc3c2db1271d06df23f5f218bf132e80"`
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling hc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `"docker" "inspect" "73113f5ca4f0de9ce9b8a37298413213bc3c2db1271d06df23f5f218bf132e80"`
[INFO] running `"docker" "rm" "-f" "73113f5ca4f0de9ce9b8a37298413213bc3c2db1271d06df23f5f218bf132e80"`
[INFO] [stdout] 73113f5ca4f0de9ce9b8a37298413213bc3c2db1271d06df23f5f218bf132e80
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/izflare/Huffman-coding:/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] 4c4a6fd59bf296f9ba2bd3bc0d9216486a531d6fdb353d24ac0432856843fb98
[INFO] running `"docker" "start" "-a" "4c4a6fd59bf296f9ba2bd3bc0d9216486a531d6fdb353d24ac0432856843fb98"`
[INFO] [stderr]    Compiling hc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "4c4a6fd59bf296f9ba2bd3bc0d9216486a531d6fdb353d24ac0432856843fb98"`
[INFO] running `"docker" "rm" "-f" "4c4a6fd59bf296f9ba2bd3bc0d9216486a531d6fdb353d24ac0432856843fb98"`
[INFO] [stdout] 4c4a6fd59bf296f9ba2bd3bc0d9216486a531d6fdb353d24ac0432856843fb98
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/izflare/Huffman-coding:/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] f51195588d9bebabe20bd6e343c79941c65325145682d55b680f3ebca8594616
[INFO] running `"docker" "start" "-a" "f51195588d9bebabe20bd6e343c79941c65325145682d55b680f3ebca8594616"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hc-cccd5e2cd42ee8b7
[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] [stderr]      Running /opt/crater/target/debug/deps/hc-d9ab9e4dae4fb4eb
[INFO] [stderr]    Doc-tests hc
[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] [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" "f51195588d9bebabe20bd6e343c79941c65325145682d55b680f3ebca8594616"`
[INFO] running `"docker" "rm" "-f" "f51195588d9bebabe20bd6e343c79941c65325145682d55b680f3ebca8594616"`
[INFO] [stdout] f51195588d9bebabe20bd6e343c79941c65325145682d55b680f3ebca8594616