[INFO] fetching crate twoway 0.2.2...
[INFO] building twoway-0.2.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate twoway 0.2.2 into /workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twoway 0.2.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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: v1.0.3)
[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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42480cd964ec808fc03bfe830a3c66702668a854b278008c16712bb30172ec43
[INFO] running `Command { std: "docker" "start" "-a" "42480cd964ec808fc03bfe830a3c66702668a854b278008c16712bb30172ec43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42480cd964ec808fc03bfe830a3c66702668a854b278008c16712bb30172ec43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42480cd964ec808fc03bfe830a3c66702668a854b278008c16712bb30172ec43", kill_on_drop: false }`
[INFO] [stdout] 42480cd964ec808fc03bfe830a3c66702668a854b278008c16712bb30172ec43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3596f07d2cafa65f40c5f6d02e9ce63412c7652f4c28fcb64b0dd1aa9dbb34e8
[INFO] running `Command { std: "docker" "start" "-a" "3596f07d2cafa65f40c5f6d02e9ce63412c7652f4c28fcb64b0dd1aa9dbb34e8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling unchecked-index v0.2.2
[INFO] [stderr]    Compiling memchr v2.7.6
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 1.13s
[INFO] running `Command { std: "docker" "inspect" "3596f07d2cafa65f40c5f6d02e9ce63412c7652f4c28fcb64b0dd1aa9dbb34e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3596f07d2cafa65f40c5f6d02e9ce63412c7652f4c28fcb64b0dd1aa9dbb34e8", kill_on_drop: false }`
[INFO] [stdout] 3596f07d2cafa65f40c5f6d02e9ce63412c7652f4c28fcb64b0dd1aa9dbb34e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77dda4370a15498373cb0634ee5229be179722e6a115199eb42ead41953e2d5d
[INFO] running `Command { std: "docker" "start" "-a" "77dda4370a15498373cb0634ee5229be179722e6a115199eb42ead41953e2d5d", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling odds v0.3.1
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 4.61s
[INFO] running `Command { std: "docker" "inspect" "77dda4370a15498373cb0634ee5229be179722e6a115199eb42ead41953e2d5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77dda4370a15498373cb0634ee5229be179722e6a115199eb42ead41953e2d5d", kill_on_drop: false }`
[INFO] [stdout] 77dda4370a15498373cb0634ee5229be179722e6a115199eb42ead41953e2d5d