[INFO] fetching crate tinysearch-cuckoofilter 0.4.1...
[INFO] checking tinysearch-cuckoofilter-0.4.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate tinysearch-cuckoofilter 0.4.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tinysearch-cuckoofilter 0.4.1
[INFO] finished tweaking crates.io crate tinysearch-cuckoofilter 0.4.1
[INFO] tweaked toml for crates.io crate tinysearch-cuckoofilter 0.4.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tinysearch-cuckoofilter 0.4.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages to latest compatible versions
[INFO] [stderr]       Adding clippy v0.0.77 (available: v0.0.302)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09e9029aa6d1c012730b62d65bdadd4bb01390051ab1af404b578029e7afdfd8
[INFO] running `Command { std: "docker" "start" "-a" "09e9029aa6d1c012730b62d65bdadd4bb01390051ab1af404b578029e7afdfd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09e9029aa6d1c012730b62d65bdadd4bb01390051ab1af404b578029e7afdfd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09e9029aa6d1c012730b62d65bdadd4bb01390051ab1af404b578029e7afdfd8", kill_on_drop: false }`
[INFO] [stdout] 09e9029aa6d1c012730b62d65bdadd4bb01390051ab1af404b578029e7afdfd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8eab1d02fc333daa5c1c13193ddd8adeeeb16c2ef3fa7f22cfa64b20861dd59f
[INFO] running `Command { std: "docker" "start" "-a" "8eab1d02fc333daa5c1c13193ddd8adeeeb16c2ef3fa7f22cfa64b20861dd59f", kill_on_drop: false }`
[INFO] [stderr]     Checking tinysearch-cuckoofilter v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]   --> src/bucket.rs:90:34
[INFO] [stdout]    |
[INFO] [stdout] 90 |             .flat_map(|f| f.data.into_iter())
[INFO] [stdout]    |                                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 90 -             .flat_map(|f| f.data.into_iter())
[INFO] [stdout] 90 +             .flat_map(|f| f.data.iter())
[INFO] [stdout]    |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 90 -             .flat_map(|f| f.data.into_iter())
[INFO] [stdout] 90 +             .flat_map(|f| IntoIterator::into_iter(f.data))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]   --> src/bucket.rs:90:34
[INFO] [stdout]    |
[INFO] [stdout] 90 |             .flat_map(|f| f.data.into_iter())
[INFO] [stdout]    |                                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 90 -             .flat_map(|f| f.data.into_iter())
[INFO] [stdout] 90 +             .flat_map(|f| f.data.iter())
[INFO] [stdout]    |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 90 -             .flat_map(|f| f.data.into_iter())
[INFO] [stdout] 90 +             .flat_map(|f| IntoIterator::into_iter(f.data))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::cuckoofilter`
[INFO] [stdout]   --> benches/bench_lib.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | use self::cuckoofilter::*;
[INFO] [stdout]    |           ^^^^^^^^^^^^ could not find `cuckoofilter` in the crate root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> benches/bench_lib.rs:24:68
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(why) => panic!("couldn't open {}: {}", display, Error::description(&why)),
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> benches/bench_lib.rs:30:56
[INFO] [stdout]    |
[INFO] [stdout] 30 |         panic!("couldn't read {}: {}", display, Error::description(&why));
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tinysearch-cuckoofilter` (bench "bench_lib") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8eab1d02fc333daa5c1c13193ddd8adeeeb16c2ef3fa7f22cfa64b20861dd59f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eab1d02fc333daa5c1c13193ddd8adeeeb16c2ef3fa7f22cfa64b20861dd59f", kill_on_drop: false }`
[INFO] [stdout] 8eab1d02fc333daa5c1c13193ddd8adeeeb16c2ef3fa7f22cfa64b20861dd59f