[INFO] cloning repository https://github.com/BrysonSmith15/Huffman-Encoding-Tree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BrysonSmith15/Huffman-Encoding-Tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrysonSmith15%2FHuffman-Encoding-Tree", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrysonSmith15%2FHuffman-Encoding-Tree'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 684e7ff2b36f5045a757584ba4df13ca18c5b70c [INFO] checking BrysonSmith15/Huffman-Encoding-Tree/684e7ff2b36f5045a757584ba4df13ca18c5b70c against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrysonSmith15%2FHuffman-Encoding-Tree" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/BrysonSmith15/Huffman-Encoding-Tree on toolchain 38352b01ae4af9300be03b805d6db68c45e51068 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/BrysonSmith15/Huffman-Encoding-Tree [INFO] finished tweaking git repo https://github.com/BrysonSmith15/Huffman-Encoding-Tree [INFO] tweaked toml for git repo https://github.com/BrysonSmith15/Huffman-Encoding-Tree written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/BrysonSmith15/Huffman-Encoding-Tree already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c387107b933738dd5afc9d4730d1b1984c65335bee0ac835432b07ac744bb9ec [INFO] running `Command { std: "docker" "start" "-a" "c387107b933738dd5afc9d4730d1b1984c65335bee0ac835432b07ac744bb9ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c387107b933738dd5afc9d4730d1b1984c65335bee0ac835432b07ac744bb9ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c387107b933738dd5afc9d4730d1b1984c65335bee0ac835432b07ac744bb9ec", kill_on_drop: false }` [INFO] [stdout] c387107b933738dd5afc9d4730d1b1984c65335bee0ac835432b07ac744bb9ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4aab8533330351ebf15dd883be6d2a6914cace12b23d716779642de758cd231d [INFO] running `Command { std: "docker" "start" "-a" "4aab8533330351ebf15dd883be6d2a6914cace12b23d716779642de758cd231d", kill_on_drop: false }` [INFO] [stderr] Checking huffman v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `decode` and `vu8_to_bitvec` are never used [INFO] [stdout] --> src/huffman_tree.rs:113:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl HuffmanTree { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 113 | pub fn decode(&self, mut encoded: Vec) -> String { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 153 | pub fn vu8_to_bitvec(&self, encoded: Vec) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `decode` and `vu8_to_bitvec` are never used [INFO] [stdout] --> src/huffman_tree.rs:113:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl HuffmanTree { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 113 | pub fn decode(&self, mut encoded: Vec) -> String { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 153 | pub fn vu8_to_bitvec(&self, encoded: Vec) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] running `Command { std: "docker" "inspect" "4aab8533330351ebf15dd883be6d2a6914cace12b23d716779642de758cd231d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4aab8533330351ebf15dd883be6d2a6914cace12b23d716779642de758cd231d", kill_on_drop: false }` [INFO] [stdout] 4aab8533330351ebf15dd883be6d2a6914cace12b23d716779642de758cd231d