[INFO] fetching crate twoway 0.2.2...
[INFO] testing twoway-0.2.2 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate twoway 0.2.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate twoway 0.2.2
[INFO] finished tweaking crates.io crate twoway 0.2.2
[INFO] tweaked toml for crates.io crate twoway 0.2.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twoway 0.2.2 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.8.2 (available: v0.14.0)
[INFO] [stderr]       Adding jetscii v0.3.1 (available: v0.5.3)
[INFO] [stderr]       Adding odds v0.3.1 (available: v0.4.0)
[INFO] [stderr]       Adding quickcheck v0.8.5 (available: v1.1.0)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.10.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 981c9606474faa8af7f2b67df105226fd8a35b99c66c4a1d2d5318ca29250132
[INFO] running `Command { std: "docker" "start" "-a" "981c9606474faa8af7f2b67df105226fd8a35b99c66c4a1d2d5318ca29250132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "981c9606474faa8af7f2b67df105226fd8a35b99c66c4a1d2d5318ca29250132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "981c9606474faa8af7f2b67df105226fd8a35b99c66c4a1d2d5318ca29250132", kill_on_drop: false }`
[INFO] [stdout] 981c9606474faa8af7f2b67df105226fd8a35b99c66c4a1d2d5318ca29250132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 049ed6cd430217f2d9463c439e50fdc9a172a314613b06c0a01070362c562e82
[INFO] running `Command { std: "docker" "start" "-a" "049ed6cd430217f2d9463c439e50fdc9a172a314613b06c0a01070362c562e82", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling unchecked-index v0.2.2
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling twoway v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:800:18
[INFO] [stdout]     |
[INFO] [stdout] 800 |     fn rejecting(usize, usize) -> Self::Output;
[INFO] [stdout]     |                  ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:800:25
[INFO] [stdout]     |
[INFO] [stdout] 800 |     fn rejecting(usize, usize) -> Self::Output;
[INFO] [stdout]     |                         ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:801:17
[INFO] [stdout]     |
[INFO] [stdout] 801 |     fn matching(usize, usize) -> Self::Output;
[INFO] [stdout]     |                 ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:801:24
[INFO] [stdout]     |
[INFO] [stdout] 801 |     fn matching(usize, usize) -> Self::Output;
[INFO] [stdout]     |                        ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `haystack`, `needle`, and `searcher` are never read
[INFO] [stdout]    --> src/lib.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | pub struct StrSearcher<'a, 'b> {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 156 |     haystack: &'a str,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 157 |     needle: &'b str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 158 |
[INFO] [stdout] 159 |     searcher: StrSearcherImpl,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcher` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 |     Empty(EmptyNeedle),
[INFO] [stdout]     |     ----- ^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcherImpl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 164 -     Empty(EmptyNeedle),
[INFO] [stdout] 164 +     Empty(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 |     TwoWay(TwoWaySearcher),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcherImpl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 165 -     TwoWay(TwoWaySearcher),
[INFO] [stdout] 165 +     TwoWay(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position`, `end`, `is_match_fw`, and `is_match_bw` are never read
[INFO] [stdout]    --> src/lib.rs:170:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | struct EmptyNeedle {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 170 |     position: usize,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 171 |     end: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 172 |     is_match_fw: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 173 |     is_match_bw: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EmptyNeedle` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "049ed6cd430217f2d9463c439e50fdc9a172a314613b06c0a01070362c562e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "049ed6cd430217f2d9463c439e50fdc9a172a314613b06c0a01070362c562e82", kill_on_drop: false }`
[INFO] [stdout] 049ed6cd430217f2d9463c439e50fdc9a172a314613b06c0a01070362c562e82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04c649f26925d0e38e86748f639fd5e1f14d71532703de5487e558ffc8d62ea5
[INFO] running `Command { std: "docker" "start" "-a" "04c649f26925d0e38e86748f639fd5e1f14d71532703de5487e558ffc8d62ea5", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling macro-attr v0.2.0
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:800:18
[INFO] [stdout]     |
[INFO] [stdout] 800 |     fn rejecting(usize, usize) -> Self::Output;
[INFO] [stdout]     |                  ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:800:25
[INFO] [stdout]     |
[INFO] [stdout] 800 |     fn rejecting(usize, usize) -> Self::Output;
[INFO] [stdout]     |                         ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:801:17
[INFO] [stdout]     |
[INFO] [stdout] 801 |     fn matching(usize, usize) -> Self::Output;
[INFO] [stdout]     |                 ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:801:24
[INFO] [stdout]     |
[INFO] [stdout] 801 |     fn matching(usize, usize) -> Self::Output;
[INFO] [stdout]     |                        ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `haystack`, `needle`, and `searcher` are never read
[INFO] [stdout]    --> src/lib.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | pub struct StrSearcher<'a, 'b> {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 156 |     haystack: &'a str,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 157 |     needle: &'b str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 158 |
[INFO] [stdout] 159 |     searcher: StrSearcherImpl,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcher` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 |     Empty(EmptyNeedle),
[INFO] [stdout]     |     ----- ^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcherImpl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 164 -     Empty(EmptyNeedle),
[INFO] [stdout] 164 +     Empty(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 |     TwoWay(TwoWaySearcher),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcherImpl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 165 -     TwoWay(TwoWaySearcher),
[INFO] [stdout] 165 +     TwoWay(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position`, `end`, `is_match_fw`, and `is_match_bw` are never read
[INFO] [stdout]    --> src/lib.rs:170:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | struct EmptyNeedle {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 170 |     position: usize,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 171 |     end: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 172 |     is_match_fw: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 173 |     is_match_bw: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EmptyNeedle` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rawslice v0.1.1
[INFO] [stderr]    Compiling odds v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling twoway v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:800:18
[INFO] [stdout]     |
[INFO] [stdout] 800 |     fn rejecting(usize, usize) -> Self::Output;
[INFO] [stdout]     |                  ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:800:25
[INFO] [stdout]     |
[INFO] [stdout] 800 |     fn rejecting(usize, usize) -> Self::Output;
[INFO] [stdout]     |                         ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:801:17
[INFO] [stdout]     |
[INFO] [stdout] 801 |     fn matching(usize, usize) -> Self::Output;
[INFO] [stdout]     |                 ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/lib.rs:801:24
[INFO] [stdout]     |
[INFO] [stdout] 801 |     fn matching(usize, usize) -> Self::Output;
[INFO] [stdout]     |                        ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `haystack`, `needle`, and `searcher` are never read
[INFO] [stdout]    --> src/lib.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | pub struct StrSearcher<'a, 'b> {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 156 |     haystack: &'a str,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 157 |     needle: &'b str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 158 |
[INFO] [stdout] 159 |     searcher: StrSearcherImpl,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcher` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 164 |     Empty(EmptyNeedle),
[INFO] [stdout]     |     ----- ^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcherImpl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 164 -     Empty(EmptyNeedle),
[INFO] [stdout] 164 +     Empty(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 |     TwoWay(TwoWaySearcher),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StrSearcherImpl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 165 -     TwoWay(TwoWaySearcher),
[INFO] [stdout] 165 +     TwoWay(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position`, `end`, `is_match_fw`, and `is_match_bw` are never read
[INFO] [stdout]    --> src/lib.rs:170:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | struct EmptyNeedle {
[INFO] [stdout]     |        ----------- fields in this struct
[INFO] [stdout] 170 |     position: usize,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 171 |     end: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 172 |     is_match_fw: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 173 |     is_match_bw: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EmptyNeedle` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "04c649f26925d0e38e86748f639fd5e1f14d71532703de5487e558ffc8d62ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04c649f26925d0e38e86748f639fd5e1f14d71532703de5487e558ffc8d62ea5", kill_on_drop: false }`
[INFO] [stdout] 04c649f26925d0e38e86748f639fd5e1f14d71532703de5487e558ffc8d62ea5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ec9ec023e63f97f4df1ccff54e17e61090076428994a67ba6e276a1ade5a2df
[INFO] running `Command { std: "docker" "start" "-a" "7ec9ec023e63f97f4df1ccff54e17e61090076428994a67ba6e276a1ade5a2df", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/lib.rs:800:18
[INFO] [stderr]     |
[INFO] [stderr] 800 |     fn rejecting(usize, usize) -> Self::Output;
[INFO] [stderr]     |                  ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stderr]     = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/lib.rs:800:25
[INFO] [stderr]     |
[INFO] [stderr] 800 |     fn rejecting(usize, usize) -> Self::Output;
[INFO] [stderr]     |                         ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/lib.rs:801:17
[INFO] [stderr]     |
[INFO] [stderr] 801 |     fn matching(usize, usize) -> Self::Output;
[INFO] [stderr]     |                 ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/lib.rs:801:24
[INFO] [stderr]     |
[INFO] [stderr] 801 |     fn matching(usize, usize) -> Self::Output;
[INFO] [stderr]     |                        ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: usize`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stderr] 
[INFO] [stderr] warning: fields `haystack`, `needle`, and `searcher` are never read
[INFO] [stderr]    --> src/lib.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 155 | pub struct StrSearcher<'a, 'b> {
[INFO] [stderr]     |            ----------- fields in this struct
[INFO] [stderr] 156 |     haystack: &'a str,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 157 |     needle: &'b str,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 158 |
[INFO] [stderr] 159 |     searcher: StrSearcherImpl,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `StrSearcher` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:164:11
[INFO] [stderr]     |
[INFO] [stderr] 164 |     Empty(EmptyNeedle),
[INFO] [stderr]     |     ----- ^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `StrSearcherImpl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 164 -     Empty(EmptyNeedle),
[INFO] [stderr] 164 +     Empty(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:165:12
[INFO] [stderr]     |
[INFO] [stderr] 165 |     TwoWay(TwoWaySearcher),
[INFO] [stderr]     |     ------ ^^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `StrSearcherImpl` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 165 -     TwoWay(TwoWaySearcher),
[INFO] [stderr] 165 +     TwoWay(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `position`, `end`, `is_match_fw`, and `is_match_bw` are never read
[INFO] [stderr]    --> src/lib.rs:170:5
[INFO] [stderr]     |
[INFO] [stderr] 169 | struct EmptyNeedle {
[INFO] [stderr]     |        ----------- fields in this struct
[INFO] [stderr] 170 |     position: usize,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 171 |     end: usize,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 172 |     is_match_fw: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 173 |     is_match_bw: bool,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `EmptyNeedle` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `twoway` (lib) generated 8 warnings (run `cargo fix --lib -p twoway` to apply 4 suggestions)
[INFO] [stderr] warning: `twoway` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twoway-ca4d75d147fcbacf)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test maximal_suffix_verbose ... ok
[INFO] [stdout] test maximal_suffix ... ok
[INFO] [stdout] test pcmp::test_first_start_of_match ... ok
[INFO] [stdout] test tw::test_max ... ok
[INFO] [stdout] test tw::test_max_suf_pos ... ok
[INFO] [stdout] test pcmp::test_find ... ok
[INFO] [stdout] test tw::test_maxsuf_and_period ... ok
[INFO] [stdout] test pcmp::test_prefixlen ... ok
[INFO] [stdout] test tw::test_find ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/quick.rs (/opt/rustwide/target/debug/deps/quick-ae509fda0a7ff69a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests twoway
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ec9ec023e63f97f4df1ccff54e17e61090076428994a67ba6e276a1ade5a2df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec9ec023e63f97f4df1ccff54e17e61090076428994a67ba6e276a1ade5a2df", kill_on_drop: false }`
[INFO] [stdout] 7ec9ec023e63f97f4df1ccff54e17e61090076428994a67ba6e276a1ade5a2df
