[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 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5519bd3bf0dd133df81de8643791b435ec306e600b8ae04bbf697764a418d089
[INFO] running `"docker" "start" "-a" "5519bd3bf0dd133df81de8643791b435ec306e600b8ae04bbf697764a418d089"`
[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 4.12s
[INFO] running `"docker" "inspect" "5519bd3bf0dd133df81de8643791b435ec306e600b8ae04bbf697764a418d089"`
[INFO] running `"docker" "rm" "-f" "5519bd3bf0dd133df81de8643791b435ec306e600b8ae04bbf697764a418d089"`
[INFO] [stdout] 5519bd3bf0dd133df81de8643791b435ec306e600b8ae04bbf697764a418d089
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] fbc90afaa787e4c1b65714d746593f30d844cdd412196007c807b8755fae8a6b
[INFO] running `"docker" "start" "-a" "fbc90afaa787e4c1b65714d746593f30d844cdd412196007c807b8755fae8a6b"`
[INFO] [stderr]    Compiling hc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "fbc90afaa787e4c1b65714d746593f30d844cdd412196007c807b8755fae8a6b"`
[INFO] running `"docker" "rm" "-f" "fbc90afaa787e4c1b65714d746593f30d844cdd412196007c807b8755fae8a6b"`
[INFO] [stdout] fbc90afaa787e4c1b65714d746593f30d844cdd412196007c807b8755fae8a6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 2eed735f5848d14b3b2acc7f61cf4119585d378a2280e9b9aa4afd974934a0e7
[INFO] running `"docker" "start" "-a" "2eed735f5848d14b3b2acc7f61cf4119585d378a2280e9b9aa4afd974934a0e7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hc-0a3c1cec30a2e6cf
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hc-648e968b60225607
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hc
[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] [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" "2eed735f5848d14b3b2acc7f61cf4119585d378a2280e9b9aa4afd974934a0e7"`
[INFO] running `"docker" "rm" "-f" "2eed735f5848d14b3b2acc7f61cf4119585d378a2280e9b9aa4afd974934a0e7"`
[INFO] [stdout] 2eed735f5848d14b3b2acc7f61cf4119585d378a2280e9b9aa4afd974934a0e7