[INFO] cloning repository https://github.com/rad10/base64-decoder-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rad10/base64-decoder-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frad10%2Fbase64-decoder-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frad10%2Fbase64-decoder-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 968a152200e9e3f24adc8d7c67f71288e7d56343
[INFO] checking rad10/base64-decoder-rs against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frad10%2Fbase64-decoder-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/rad10/base64-decoder-rs
[INFO] finished tweaking git repo https://github.com/rad10/base64-decoder-rs
[INFO] tweaked toml for git repo https://github.com/rad10/base64-decoder-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rad10/base64-decoder-rs on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rad10/base64-decoder-rs 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5
[INFO] running `Command { std: "docker" "start" "abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking whatlang v0.18.0
[INFO] [stderr]     Checking base64-bruteforcer-rs v5.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_halves.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | /     fn reduce_halves<L, C>(&'s self, size_checker: L, confidence_interpreter: C) -> Self
[INFO] [stdout] 116 | |     where
[INFO] [stdout] 117 | |         Variation<Self::Item>: Clone,
[INFO] [stdout] 118 | |         L: Fn(&B) -> bool,
[INFO] [stdout] 119 | |         C: Fn(&Variation<Self::Item>) -> f64,
[INFO] [stdout] 120 | |         S: Borrow<B>;
[INFO] [stdout]     | |_____________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<B as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_halves.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 | /     fn bulk_reduce_halves<L, C>(&'s self, size_checker: L, confidence_interpreter: C) -> Self
[INFO] [stdout] 138 | |     where
[INFO] [stdout] 139 | |         L: Fn(&B) -> bool,
[INFO] [stdout] 140 | |         C: FnMut(S) -> I;
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<B as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_halves.rs:343:9
[INFO] [stdout]     |
[INFO] [stdout] 343 | /         fn reduce_halves<L, C>(&'s self, size_checker: L, confidence_interpreter: C) -> Self
[INFO] [stdout] 344 | |         where
[INFO] [stdout] 345 | |             L: Fn(&B) -> bool + Send + Sync,
[INFO] [stdout] 346 | |             C: Fn(&Variation<Self::Item>) -> f64 + Send + Sync,
[INFO] [stdout] 347 | |             S: Borrow<B>;
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<B as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_halves.rs:364:9
[INFO] [stdout]     |
[INFO] [stdout] 364 | /         fn bulk_reduce_halves<L, C>(&'s self, size_checker: L, confidence_interpreter: C) -> Self
[INFO] [stdout] 365 | |         where
[INFO] [stdout] 366 | |             L: Fn(&S) -> bool + Send + Sync,
[INFO] [stdout] 367 | |             C: Fn(S) -> I + Send + Sync;
[INFO] [stdout]     | |________________________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_pairs.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 | /     fn reduce_pairs<C>(
[INFO] [stdout] 114 | |         &self,
[INFO] [stdout] 115 | |         number_of_pairs: impl Into<Option<usize>>,
[INFO] [stdout] 116 | |         confidence_interpreter: C,
[INFO] [stdout] 117 | |     ) -> Self
[INFO] [stdout] 118 | |     where
[INFO] [stdout] 119 | |         C: Fn(&Variation<Self::Item>) -> f64;
[INFO] [stdout]     | |_____________________________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_pairs.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 136 | /     fn bulk_reduce_pairs<C>(
[INFO] [stdout] 137 | |         &'s self,
[INFO] [stdout] 138 | |         number_of_pairs: impl Into<Option<usize>>,
[INFO] [stdout] 139 | |         confidence_interpreter: C,
[INFO] [stdout] 140 | |     ) -> Self
[INFO] [stdout] 141 | |     where
[INFO] [stdout] 142 | |         C: FnMut(S) -> I;
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_pairs.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 | /         fn reduce_pairs<C>(
[INFO] [stdout] 342 | |             &self,
[INFO] [stdout] 343 | |             number_of_pairs: impl Into<Option<usize>>,
[INFO] [stdout] 344 | |             confidence_interpreter: C,
[INFO] [stdout] ...   |
[INFO] [stdout] 347 | |             C: Fn(&Variation<Self::Item>) -> f64 + Send + Sync,
[INFO] [stdout] 348 | |             Variation<Self::Item>: Send;
[INFO] [stdout]     | |________________________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_pairs.rs:371:9
[INFO] [stdout]     |
[INFO] [stdout] 371 | /         fn bulk_reduce_pairs<C>(
[INFO] [stdout] 372 | |             &'s self,
[INFO] [stdout] 373 | |             number_of_pairs: impl Into<Option<usize>>,
[INFO] [stdout] 374 | |             confidence_interpreter: C,
[INFO] [stdout] ...   |
[INFO] [stdout] 377 | |             C: Fn(S) -> I + Send + Sync,
[INFO] [stdout] 378 | |             Variation<Self::Item>: Send;
[INFO] [stdout]     | |________________________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `base64-bruteforcer-rs` (lib) due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_halves.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | /     fn reduce_halves<L, C>(&'s self, size_checker: L, confidence_interpreter: C) -> Self
[INFO] [stdout] 116 | |     where
[INFO] [stdout] 117 | |         Variation<Self::Item>: Clone,
[INFO] [stdout] 118 | |         L: Fn(&B) -> bool,
[INFO] [stdout] 119 | |         C: Fn(&Variation<Self::Item>) -> f64,
[INFO] [stdout] 120 | |         S: Borrow<B>;
[INFO] [stdout]     | |_____________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<B as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_halves.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 | /     fn bulk_reduce_halves<L, C>(&'s self, size_checker: L, confidence_interpreter: C) -> Self
[INFO] [stdout] 138 | |     where
[INFO] [stdout] 139 | |         L: Fn(&B) -> bool,
[INFO] [stdout] 140 | |         C: FnMut(S) -> I;
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<B as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_halves.rs:343:9
[INFO] [stdout]     |
[INFO] [stdout] 343 | /         fn reduce_halves<L, C>(&'s self, size_checker: L, confidence_interpreter: C) -> Self
[INFO] [stdout] 344 | |         where
[INFO] [stdout] 345 | |             L: Fn(&B) -> bool + Send + Sync,
[INFO] [stdout] 346 | |             C: Fn(&Variation<Self::Item>) -> f64 + Send + Sync,
[INFO] [stdout] 347 | |             S: Borrow<B>;
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<B as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_halves.rs:364:9
[INFO] [stdout]     |
[INFO] [stdout] 364 | /         fn bulk_reduce_halves<L, C>(&'s self, size_checker: L, confidence_interpreter: C) -> Self
[INFO] [stdout] 365 | |         where
[INFO] [stdout] 366 | |             L: Fn(&S) -> bool + Send + Sync,
[INFO] [stdout] 367 | |             C: Fn(S) -> I + Send + Sync;
[INFO] [stdout]     | |________________________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_pairs.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 | /     fn reduce_pairs<C>(
[INFO] [stdout] 114 | |         &self,
[INFO] [stdout] 115 | |         number_of_pairs: impl Into<Option<usize>>,
[INFO] [stdout] 116 | |         confidence_interpreter: C,
[INFO] [stdout] 117 | |     ) -> Self
[INFO] [stdout] 118 | |     where
[INFO] [stdout] 119 | |         C: Fn(&Variation<Self::Item>) -> f64;
[INFO] [stdout]     | |_____________________________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_pairs.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 136 | /     fn bulk_reduce_pairs<C>(
[INFO] [stdout] 137 | |         &'s self,
[INFO] [stdout] 138 | |         number_of_pairs: impl Into<Option<usize>>,
[INFO] [stdout] 139 | |         confidence_interpreter: C,
[INFO] [stdout] 140 | |     ) -> Self
[INFO] [stdout] 141 | |     where
[INFO] [stdout] 142 | |         C: FnMut(S) -> I;
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_pairs.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 | /         fn reduce_pairs<C>(
[INFO] [stdout] 342 | |             &self,
[INFO] [stdout] 343 | |             number_of_pairs: impl Into<Option<usize>>,
[INFO] [stdout] 344 | |             confidence_interpreter: C,
[INFO] [stdout] ...   |
[INFO] [stdout] 347 | |             C: Fn(&Variation<Self::Item>) -> f64 + Send + Sync,
[INFO] [stdout] 348 | |             Variation<Self::Item>: Send;
[INFO] [stdout]     | |________________________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed
[INFO] [stdout]    --> src/phrase/reduction/by_pairs.rs:371:9
[INFO] [stdout]     |
[INFO] [stdout] 371 | /         fn bulk_reduce_pairs<C>(
[INFO] [stdout] 372 | |             &'s self,
[INFO] [stdout] 373 | |             number_of_pairs: impl Into<Option<usize>>,
[INFO] [stdout] 374 | |             confidence_interpreter: C,
[INFO] [stdout] ...   |
[INFO] [stdout] 377 | |             C: Fn(S) -> I + Send + Sync,
[INFO] [stdout] 378 | |             Variation<Self::Item>: Send;
[INFO] [stdout]     | |________________________________________^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `<S as SnippetExt>::Item == _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `base64-bruteforcer-rs` (lib test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5", kill_on_drop: false }`
[INFO] [stdout] abd7cb574497a055517609f59181622d20bd70cc6b72662bd8bef6f3d07cf9b5
