[INFO] fetching crate huff-tree-tap 0.0.2...
[INFO] testing huff-tree-tap-0.0.2 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate huff-tree-tap 0.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate huff-tree-tap 0.0.2 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate huff-tree-tap 0.0.2
[INFO] finished tweaking crates.io crate huff-tree-tap 0.0.2
[INFO] tweaked toml for crates.io crate huff-tree-tap 0.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", 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] 6adb1cf248e0c20fc84e9d55cfe2618c2ead06a9566546c9372e2656e2b57b44
[INFO] running `Command { std: "docker" "start" "-a" "6adb1cf248e0c20fc84e9d55cfe2618c2ead06a9566546c9372e2656e2b57b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6adb1cf248e0c20fc84e9d55cfe2618c2ead06a9566546c9372e2656e2b57b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6adb1cf248e0c20fc84e9d55cfe2618c2ead06a9566546c9372e2656e2b57b44", kill_on_drop: false }`
[INFO] [stdout] 6adb1cf248e0c20fc84e9d55cfe2618c2ead06a9566546c9372e2656e2b57b44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--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] bdd2a152e32a98a0f7058e7f08e27d1c55a212cec547335b5809082e72137b19
[INFO] running `Command { std: "docker" "start" "-a" "bdd2a152e32a98a0f7058e7f08e27d1c55a212cec547335b5809082e72137b19", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling huff-tree-tap v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.79s
[INFO] running `Command { std: "docker" "inspect" "bdd2a152e32a98a0f7058e7f08e27d1c55a212cec547335b5809082e72137b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdd2a152e32a98a0f7058e7f08e27d1c55a212cec547335b5809082e72137b19", kill_on_drop: false }`
[INFO] [stdout] bdd2a152e32a98a0f7058e7f08e27d1c55a212cec547335b5809082e72137b19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b05992c0b3785913f139bd853fcdbd81baeb6223882a0e976f01a99f44807cdb
[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" "b05992c0b3785913f139bd853fcdbd81baeb6223882a0e976f01a99f44807cdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling huff-tree-tap v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "b05992c0b3785913f139bd853fcdbd81baeb6223882a0e976f01a99f44807cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b05992c0b3785913f139bd853fcdbd81baeb6223882a0e976f01a99f44807cdb", kill_on_drop: false }`
[INFO] [stdout] b05992c0b3785913f139bd853fcdbd81baeb6223882a0e976f01a99f44807cdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e2258b5c4bb8eebeecd050714e77f681b95104eae15981e45aaec222e63500d
[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" "1e2258b5c4bb8eebeecd050714e77f681b95104eae15981e45aaec222e63500d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huff_tree_tap-7de0d95cf91a23e8)
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_build_frequency_map ... ok
[INFO] [stdout] test tests::test_huffman_encode_string ... ok
[INFO] [stdout] test tests::test_build_huffman_tree_build_encoding_map ... ok
[INFO] [stdout] test tests::test_invert_encoding_map ... ok
[INFO] [stdout] test tests::test_bin_string_to_u8_vec ... ok
[INFO] [stdout] test tests::test_pad_encoded_data ... ok
[INFO] [stdout] test tests::test_huffman_decode_bin_string ... ok
[INFO] [stdout] test tests::test_unpad_encoded_data ... ok
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-ef9ad444b2578f56)
[INFO] [stdout] test tests::test_u8_vec_to_bin_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_huffman_decode ... ok
[INFO] [stdout] test test_huffman_encode ... ok
[INFO] [stderr]    Doc-tests huff-tree-tap
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 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] running `Command { std: "docker" "inspect" "1e2258b5c4bb8eebeecd050714e77f681b95104eae15981e45aaec222e63500d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e2258b5c4bb8eebeecd050714e77f681b95104eae15981e45aaec222e63500d", kill_on_drop: false }`
[INFO] [stdout] 1e2258b5c4bb8eebeecd050714e77f681b95104eae15981e45aaec222e63500d