[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 try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order 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-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. 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[INFO] validating manifest of git repo https://github.com/BrysonSmith15/Huffman-Encoding-Tree on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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-tc2/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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] db5d5fef12efa6dee1585ad91b70738a9c0c19641fa414c0e0bb76c27c26609a [INFO] running `Command { std: "docker" "start" "-a" "db5d5fef12efa6dee1585ad91b70738a9c0c19641fa414c0e0bb76c27c26609a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "db5d5fef12efa6dee1585ad91b70738a9c0c19641fa414c0e0bb76c27c26609a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db5d5fef12efa6dee1585ad91b70738a9c0c19641fa414c0e0bb76c27c26609a", kill_on_drop: false }` [INFO] [stdout] db5d5fef12efa6dee1585ad91b70738a9c0c19641fa414c0e0bb76c27c26609a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dtail_expr_drop_order" "-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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 777f9b73893a82fe90a112634e524fec969e8bbbcb8044200e861ce350f73d6b [INFO] running `Command { std: "docker" "start" "-a" "777f9b73893a82fe90a112634e524fec969e8bbbcb8044200e861ce350f73d6b", 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) -> 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] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/binary_tree.rs:14:18 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn new(val: Option) -> Self { [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 14 | lef: None, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/binary_tree.rs:15:18 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn new(val: Option) -> Self { [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 15 | rig: None, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/huffman_tree.rs:62:19 [INFO] [stdout] | [INFO] [stdout] 35 | let mut node_queue: Vec)>> = vec![]; [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 62 | tree: node_queue.swap_remove(0), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `huffman` (bin "huffman" test) due to 4 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/binary_tree.rs:14:18 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn new(val: Option) -> Self { [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 14 | lef: None, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/binary_tree.rs:15:18 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn new(val: Option) -> Self { [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 15 | rig: None, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/huffman_tree.rs:62:19 [INFO] [stdout] | [INFO] [stdout] 35 | let mut node_queue: Vec)>> = vec![]; [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 62 | tree: node_queue.swap_remove(0), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `huffman` (bin "huffman") due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "777f9b73893a82fe90a112634e524fec969e8bbbcb8044200e861ce350f73d6b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "777f9b73893a82fe90a112634e524fec969e8bbbcb8044200e861ce350f73d6b", kill_on_drop: false }` [INFO] [stdout] 777f9b73893a82fe90a112634e524fec969e8bbbcb8044200e861ce350f73d6b