[INFO] cloning repository https://github.com/k-xlsx/huffman-encoding
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k-xlsx/huffman-encoding" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-xlsx%2Fhuffman-encoding", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-xlsx%2Fhuffman-encoding'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e86cc287883846ae682a84478f20139337bc3fc0
[INFO] testing k-xlsx/huffman-encoding against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-xlsx%2Fhuffman-encoding" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k-xlsx/huffman-encoding on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/k-xlsx/huffman-encoding
[INFO] finished tweaking git repo https://github.com/k-xlsx/huffman-encoding
[INFO] tweaked toml for git repo https://github.com/k-xlsx/huffman-encoding written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/k-xlsx/huffman-encoding already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee0eb30701499003a3271ce72e38af9d19ce657e2d951d6b34e5bc3cc84c6e84
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ee0eb30701499003a3271ce72e38af9d19ce657e2d951d6b34e5bc3cc84c6e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee0eb30701499003a3271ce72e38af9d19ce657e2d951d6b34e5bc3cc84c6e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0eb30701499003a3271ce72e38af9d19ce657e2d951d6b34e5bc3cc84c6e84", kill_on_drop: false }`
[INFO] [stdout] ee0eb30701499003a3271ce72e38af9d19ce657e2d951d6b34e5bc3cc84c6e84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f404e0b2ee80cc3c7f4d9248e0c5b048d5a30a5ebfb14da51ffecade183af74
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3f404e0b2ee80cc3c7f4d9248e0c5b048d5a30a5ebfb14da51ffecade183af74", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling tap v1.0.0
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling bitvec v0.20.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling huff_coding v1.0.0 (/opt/rustwide/workdir/huff_coding)
[INFO] [stderr]    Compiling huff v1.0.6 (/opt/rustwide/workdir/huff)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.90s
[INFO] running `Command { std: "docker" "inspect" "3f404e0b2ee80cc3c7f4d9248e0c5b048d5a30a5ebfb14da51ffecade183af74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f404e0b2ee80cc3c7f4d9248e0c5b048d5a30a5ebfb14da51ffecade183af74", kill_on_drop: false }`
[INFO] [stdout] 3f404e0b2ee80cc3c7f4d9248e0c5b048d5a30a5ebfb14da51ffecade183af74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f0ad612c1ad7229edbe8e0b86e1ad5dd01dca42c2630738e039dcbc7bb054130
[INFO] running `Command { std: "docker" "start" "-a" "f0ad612c1ad7229edbe8e0b86e1ad5dd01dca42c2630738e039dcbc7bb054130", kill_on_drop: false }`
[INFO] [stderr]    Compiling huff_coding v1.0.0 (/opt/rustwide/workdir/huff_coding)
[INFO] [stderr]    Compiling huff v1.0.6 (/opt/rustwide/workdir/huff)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "f0ad612c1ad7229edbe8e0b86e1ad5dd01dca42c2630738e039dcbc7bb054130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0ad612c1ad7229edbe8e0b86e1ad5dd01dca42c2630738e039dcbc7bb054130", kill_on_drop: false }`
[INFO] [stdout] f0ad612c1ad7229edbe8e0b86e1ad5dd01dca42c2630738e039dcbc7bb054130
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a9e836f8e79922cb61473afac34606affcf92e44195d6c3e2b58efbd43417998
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a9e836f8e79922cb61473afac34606affcf92e44195d6c3e2b58efbd43417998", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huff-90516ee9ae145cc5)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huff-2b92891a0b2d453e)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huff_coding-49a183fb33ae29bf)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/comp_decomp.rs (/opt/rustwide/target/debug/deps/comp_decomp-97b801fdf0ce7b80)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test compress_decompress ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tree_bin.rs (/opt/rustwide/target/debug/deps/tree_bin-cd401f0bb8d366de)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tree_from_bin ... ok
[INFO] [stdout] test tree_bin_invalid_vec - should panic ... ok
[INFO] [stdout] test tree_bin_invalid_type - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tree_init.rs (/opt/rustwide/target/debug/deps/tree_init-a8677913af9912f5)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tree_single_branch ... ok
[INFO] [stdout] test tree_normal_init ... ok
[INFO] [stdout] test tree_invalid_weights - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests huff
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests huff_coding
[INFO] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test src/tree/leaf.rs - tree::leaf::HuffLeaf (line 18) ... ok
[INFO] [stdout] test src/tree/branch.rs - tree::branch::HuffBranch<L>::children_iter (line 216) ... ok
[INFO] [stdout] test src/tree/branch.rs - tree::branch::HuffBranch (line 122) ... ok
[INFO] [stdout] test src/tree/branch.rs - tree::branch::HuffBranch (line 16) ... ok
[INFO] [stdout] test src/tree/branch.rs - tree::branch::HuffBranch (line 90) ... ok
[INFO] [stdout] test src/tree/branch.rs - tree::branch::HuffBranch (line 44) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree (line 151) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree (line 165) ... ok
[INFO] [stdout] test src/comp.rs - comp::CompressData<L>::try_from_bytes (line 98) ... ok
[INFO] [stdout] test src/comp.rs - comp::compress_with_tree (line 377) ... ok
[INFO] [stdout] test src/comp.rs - comp::compress_with_tree (line 399) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree (line 110) ... ok
[INFO] [stdout] test src/lib.rs - (line 64) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree (line 176) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree (line 55) ... ok
[INFO] [stdout] test src/comp.rs - comp::decompress (line 466) ... ok
[INFO] [stdout] test src/comp.rs - comp::CompressData<L>::to_bytes (line 205) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree (line 81) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::as_bin (line 620) ... ok
[INFO] [stdout] test src/weights.rs - weights::build_weights_map (line 61) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::from_weights (line 267) ... ok
[INFO] [stdout] test src/weights.rs - weights::byte_weights::ByteWeights (line 153) ... ok
[INFO] [stdout] test src/comp.rs - comp::compress (line 326) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::from_weights (line 208) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::try_from_bin (line 510) ... ok
[INFO] [stdout] test src/weights.rs - weights::byte_weights::ByteWeights (line 145) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::read_codes (line 337) ... ok
[INFO] [stdout] test src/weights.rs - weights::byte_weights::ByteWeights (line 162) ... ok
[INFO] [stdout] test src/weights.rs - weights::byte_weights::ByteWeights::add_byte_weights (line 362) ... ok
[INFO] [stdout] test src/weights.rs - weights::build_weights_map_with_hasher (line 91) ... ok
[INFO] [stdout] test src/weights.rs - weights::byte_weights::ByteWeights::threaded_from_bytes (line 287) ... ok
[INFO] [stdout] test src/weights.rs - weights::byte_weights::ByteWeights::from_bytes (line 259) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::from_weights (line 234) ... ok
[INFO] [stdout] test src/weights.rs - weights::build_weights_map (line 72) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::try_from_bin (line 460) ... ok
[INFO] [stdout] test src/weights.rs - weights::build_weights_map_with_hasher (line 102) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::try_from_bin (line 499) ... ok
[INFO] [stdout] test src/tree/tree_inner.rs - tree::tree_inner::HuffTree<L>::read_codes_with_hasher (line 366) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 11.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9e836f8e79922cb61473afac34606affcf92e44195d6c3e2b58efbd43417998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9e836f8e79922cb61473afac34606affcf92e44195d6c3e2b58efbd43417998", kill_on_drop: false }`
[INFO] [stdout] a9e836f8e79922cb61473afac34606affcf92e44195d6c3e2b58efbd43417998