[INFO] cloning repository https://github.com/C0l0red/word-finder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/C0l0red/word-finder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC0l0red%2Fword-finder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC0l0red%2Fword-finder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42279bcb50154e4a1373c9be57ed632c1eeea3f3
[INFO] checking C0l0red/word-finder/42279bcb50154e4a1373c9be57ed632c1eeea3f3 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC0l0red%2Fword-finder" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/C0l0red/word-finder 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/C0l0red/word-finder
[INFO] finished tweaking git repo https://github.com/C0l0red/word-finder
[INFO] tweaked toml for git repo https://github.com/C0l0red/word-finder written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/C0l0red/word-finder 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c9ef8ba5cc38ce434bc564a1f1de0450b8cee47b76bf5a867d7166bcb3806d1d
[INFO] running `Command { std: "docker" "start" "-a" "c9ef8ba5cc38ce434bc564a1f1de0450b8cee47b76bf5a867d7166bcb3806d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9ef8ba5cc38ce434bc564a1f1de0450b8cee47b76bf5a867d7166bcb3806d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ef8ba5cc38ce434bc564a1f1de0450b8cee47b76bf5a867d7166bcb3806d1d", kill_on_drop: false }`
[INFO] [stdout] c9ef8ba5cc38ce434bc564a1f1de0450b8cee47b76bf5a867d7166bcb3806d1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b524c35aa51b6c6a414234949411deff8625f2eb3745b051d8725506ef97fd12
[INFO] running `Command { std: "docker" "start" "-a" "b524c35aa51b6c6a414234949411deff8625f2eb3745b051d8725506ef97fd12", kill_on_drop: false }`
[INFO] [stderr]     Checking word_unscrambler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]   --> src/dictionaries/tries/trie.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn new() -> SimpleTrie {
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/dictionaries/tries/mod.rs:7:17
[INFO] [stdout]    |
[INFO] [stdout] 7  |     fn new() -> impl Dictionary;
[INFO] [stdout]    |                 --------------- return type from trait method defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
[INFO] [stdout]    = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
[INFO] [stdout]    = note: `#[warn(refining_impl_trait_internal)]` on by default
[INFO] [stdout] help: replace the return type so that it matches the trait
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn new() -> impl dictionaries::Dictionary {
[INFO] [stdout]    |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]   --> src/dictionaries/tries/trie.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn new() -> SimpleTrie {
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/dictionaries/tries/mod.rs:7:17
[INFO] [stdout]    |
[INFO] [stdout] 7  |     fn new() -> impl Dictionary;
[INFO] [stdout]    |                 --------------- return type from trait method defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
[INFO] [stdout]    = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
[INFO] [stdout]    = note: `#[warn(refining_impl_trait_internal)]` on by default
[INFO] [stdout] help: replace the return type so that it matches the trait
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn new() -> impl Dictionary {
[INFO] [stdout]    |                 ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/word_finder/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl BasicWordFilters {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 23 |     fn new(starts_with: &str, ends_with: &str, contains: &str) -> BasicWordFilters {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "b524c35aa51b6c6a414234949411deff8625f2eb3745b051d8725506ef97fd12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b524c35aa51b6c6a414234949411deff8625f2eb3745b051d8725506ef97fd12", kill_on_drop: false }`
[INFO] [stdout] b524c35aa51b6c6a414234949411deff8625f2eb3745b051d8725506ef97fd12