[INFO] updating cached repository https://github.com/izflare/Huffman-coding
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 58bcc5fe8f93ad42b8482d75d78ff2eef1789696
[INFO] testing izflare/Huffman-coding against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fizflare%2FHuffman-coding" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/izflare/Huffman-coding on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/izflare/Huffman-coding
[INFO] finished tweaking git repo https://github.com/izflare/Huffman-coding
[INFO] tweaked toml for git repo https://github.com/izflare/Huffman-coding written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/izflare/Huffman-coding already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 72540936cbf2afa1310f1a0ad6ebcae898bbe71b5264988a12b2693df585b29d
[INFO] running `"docker" "start" "-a" "72540936cbf2afa1310f1a0ad6ebcae898bbe71b5264988a12b2693df585b29d"`
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling hc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `"docker" "inspect" "72540936cbf2afa1310f1a0ad6ebcae898bbe71b5264988a12b2693df585b29d"`
[INFO] running `"docker" "rm" "-f" "72540936cbf2afa1310f1a0ad6ebcae898bbe71b5264988a12b2693df585b29d"`
[INFO] [stdout] 72540936cbf2afa1310f1a0ad6ebcae898bbe71b5264988a12b2693df585b29d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 21dc2b3d68c3fc64cec26cd88a4d9bd3325ef2d2185e72518d4a64c78d8fae77
[INFO] running `"docker" "start" "-a" "21dc2b3d68c3fc64cec26cd88a4d9bd3325ef2d2185e72518d4a64c78d8fae77"`
[INFO] [stderr]    Compiling hc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "21dc2b3d68c3fc64cec26cd88a4d9bd3325ef2d2185e72518d4a64c78d8fae77"`
[INFO] running `"docker" "rm" "-f" "21dc2b3d68c3fc64cec26cd88a4d9bd3325ef2d2185e72518d4a64c78d8fae77"`
[INFO] [stdout] 21dc2b3d68c3fc64cec26cd88a4d9bd3325ef2d2185e72518d4a64c78d8fae77
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 127a73f0a247ffe0308a49d20953026b139e44b7ca568a6dbf360b9c58d820a9
[INFO] running `"docker" "start" "-a" "127a73f0a247ffe0308a49d20953026b139e44b7ca568a6dbf360b9c58d820a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hc-64bfe6de15250f9c
[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/rustwide/target/debug/deps/hc-f35fde16272947dc
[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]    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] running `"docker" "inspect" "127a73f0a247ffe0308a49d20953026b139e44b7ca568a6dbf360b9c58d820a9"`
[INFO] running `"docker" "rm" "-f" "127a73f0a247ffe0308a49d20953026b139e44b7ca568a6dbf360b9c58d820a9"`
[INFO] [stdout] 127a73f0a247ffe0308a49d20953026b139e44b7ca568a6dbf360b9c58d820a9