[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#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrysonSmith15%2FHuffman-Encoding-Tree" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/BrysonSmith15/Huffman-Encoding-Tree on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-3-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f7baebb0b4e3f80809927f3b73d0ceecaec7f62b7031961a0f205e8d3b50e8c
[INFO] running `Command { std: "docker" "start" "-a" "9f7baebb0b4e3f80809927f3b73d0ceecaec7f62b7031961a0f205e8d3b50e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f7baebb0b4e3f80809927f3b73d0ceecaec7f62b7031961a0f205e8d3b50e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f7baebb0b4e3f80809927f3b73d0ceecaec7f62b7031961a0f205e8d3b50e8c", kill_on_drop: false }`
[INFO] [stdout] 9f7baebb0b4e3f80809927f3b73d0ceecaec7f62b7031961a0f205e8d3b50e8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad03e327213c5c34c9809458d1fb6c43efd194541056a73d7a1ed8632c7b1ddb
[INFO] running `Command { std: "docker" "start" "-a" "ad03e327213c5c34c9809458d1fb6c43efd194541056a73d7a1ed8632c7b1ddb", kill_on_drop: false }`
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking bitvec v1.0.1
[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<u8>) -> String {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     pub fn vu8_to_bitvec(&self, encoded: Vec<u8>) -> Result<BitVec, String> {
[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<u8>) -> String {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     pub fn vu8_to_bitvec(&self, encoded: Vec<u8>) -> Result<BitVec, String> {
[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 2.72s
[INFO] running `Command { std: "docker" "inspect" "ad03e327213c5c34c9809458d1fb6c43efd194541056a73d7a1ed8632c7b1ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad03e327213c5c34c9809458d1fb6c43efd194541056a73d7a1ed8632c7b1ddb", kill_on_drop: false }`
[INFO] [stdout] ad03e327213c5c34c9809458d1fb6c43efd194541056a73d7a1ed8632c7b1ddb