[INFO] fetching crate trie_tree 0.1.3...
[INFO] checking trie_tree-0.1.3 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate trie_tree 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate trie_tree 0.1.3
[INFO] finished tweaking crates.io crate trie_tree 0.1.3
[INFO] tweaked toml for crates.io crate trie_tree 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate trie_tree 0.1.3 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc6aaaddbe6fb62c85bdf01af4d54dae3318a2d7f9e92051150fa8334806fc55
[INFO] running `Command { std: "docker" "start" "-a" "bc6aaaddbe6fb62c85bdf01af4d54dae3318a2d7f9e92051150fa8334806fc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc6aaaddbe6fb62c85bdf01af4d54dae3318a2d7f9e92051150fa8334806fc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6aaaddbe6fb62c85bdf01af4d54dae3318a2d7f9e92051150fa8334806fc55", kill_on_drop: false }`
[INFO] [stdout] bc6aaaddbe6fb62c85bdf01af4d54dae3318a2d7f9e92051150fa8334806fc55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dd69df4579666c5503511d9c7a87d85ec9535d2f73a18801119a860bdca4154
[INFO] running `Command { std: "docker" "start" "-a" "7dd69df4579666c5503511d9c7a87d85ec9535d2f73a18801119a860bdca4154", kill_on_drop: false }`
[INFO] [stderr]     Checking trie_tree v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Eq`
[INFO] [stdout]  --> src/trie/word.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp::Eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/trie/word.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_leaf` is never used
[INFO] [stdout]   --> src/trie/word.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl WordTrie {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn get_leaf(&self, words: &[String]) -> Leaf<String> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Eq`
[INFO] [stdout]  --> src/trie/word.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp::Eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/trie/word.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/trie/word.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct WordTrie {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 25 |     inner: Rc<RefCell<Node<String>>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WordTrie` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert_words`, `split_words`, `insert`, and `get_leaf` are never used
[INFO] [stdout]   --> src/trie/word.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl WordTrie {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 29 |     fn new() -> WordTrie {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn insert_words(&self, words: &str, target: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn split_words(words: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn insert(&self, words: &[String], target: String) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn get_leaf(&self, words: &[String]) -> Leaf<String> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "7dd69df4579666c5503511d9c7a87d85ec9535d2f73a18801119a860bdca4154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dd69df4579666c5503511d9c7a87d85ec9535d2f73a18801119a860bdca4154", kill_on_drop: false }`
[INFO] [stdout] 7dd69df4579666c5503511d9c7a87d85ec9535d2f73a18801119a860bdca4154