[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 master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk-xlsx%2Fhuffman-encoding" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k-xlsx/huffman-encoding on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aeb5382beecf87349cdc219a300e017c03f055e1a771a255971ee0ffb1611584
[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" "aeb5382beecf87349cdc219a300e017c03f055e1a771a255971ee0ffb1611584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aeb5382beecf87349cdc219a300e017c03f055e1a771a255971ee0ffb1611584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeb5382beecf87349cdc219a300e017c03f055e1a771a255971ee0ffb1611584", kill_on_drop: false }`
[INFO] [stdout] aeb5382beecf87349cdc219a300e017c03f055e1a771a255971ee0ffb1611584
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8f86cf2bbef617790ebc49f9ba5e93e77a3b53109836f006780fbbb659eed57
[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" "e8f86cf2bbef617790ebc49f9ba5e93e77a3b53109836f006780fbbb659eed57", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling tap v1.0.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling bitvec v0.20.1
[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 9.66s
[INFO] running `Command { std: "docker" "inspect" "e8f86cf2bbef617790ebc49f9ba5e93e77a3b53109836f006780fbbb659eed57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8f86cf2bbef617790ebc49f9ba5e93e77a3b53109836f006780fbbb659eed57", kill_on_drop: false }`
[INFO] [stdout] e8f86cf2bbef617790ebc49f9ba5e93e77a3b53109836f006780fbbb659eed57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] ca794e9d432e7207a18d4cd80a2d4c55c4e5a110ed1e93875e01da07c0df6b6e
[INFO] running `Command { std: "docker" "start" "-a" "ca794e9d432e7207a18d4cd80a2d4c55c4e5a110ed1e93875e01da07c0df6b6e", 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 2.24s
[INFO] running `Command { std: "docker" "inspect" "ca794e9d432e7207a18d4cd80a2d4c55c4e5a110ed1e93875e01da07c0df6b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca794e9d432e7207a18d4cd80a2d4c55c4e5a110ed1e93875e01da07c0df6b6e", kill_on_drop: false }`
[INFO] [stdout] ca794e9d432e7207a18d4cd80a2d4c55c4e5a110ed1e93875e01da07c0df6b6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28e51ea8649b31144a32ada1275c45fb9071d577ab89596525de9a6ed278f399
[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" "28e51ea8649b31144a32ada1275c45fb9071d577ab89596525de9a6ed278f399", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huff-c7373c5a802be0ca)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huff-e9643866ef69beba)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huff_coding-a591ee273936bb78)
[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-e0388724563a8b88)
[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-22d0b436d4d021e0)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tree_from_bin ... ok
[INFO] [stderr]      Running tests/tree_init.rs (/opt/rustwide/target/debug/deps/tree_init-81ad1305af4904f5)
[INFO] [stdout] test tree_bin_invalid_type - should panic ... ok
[INFO] [stdout] test tree_bin_invalid_vec - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tree_single_branch ... ok
[INFO] [stdout] test tree_normal_init ... ok
[INFO] [stderr]    Doc-tests huff
[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] [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] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name huff_coding --test /opt/rustwide/workdir/huff_coding/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitvec=/opt/rustwide/target/debug/deps/libbitvec-a5f70436567777b0.rlib --extern funty=/opt/rustwide/target/debug/deps/libfunty-86e9352c11c79edd.rlib --extern huff_coding=/opt/rustwide/target/debug/deps/libhuff_coding-89b177c1921c3971.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "28e51ea8649b31144a32ada1275c45fb9071d577ab89596525de9a6ed278f399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e51ea8649b31144a32ada1275c45fb9071d577ab89596525de9a6ed278f399", kill_on_drop: false }`
[INFO] [stdout] 28e51ea8649b31144a32ada1275c45fb9071d577ab89596525de9a6ed278f399