[INFO] fetching crate casing 0.1.0...
[INFO] testing casing-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate casing 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate casing 0.1.0
[INFO] finished tweaking crates.io crate casing 0.1.0
[INFO] tweaked toml for crates.io crate casing 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate casing 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57e772e66b5ab7ab40cba2101801f5c6cc41d51d1a766d7c1d144465635c1cfc
[INFO] running `Command { std: "docker" "start" "-a" "57e772e66b5ab7ab40cba2101801f5c6cc41d51d1a766d7c1d144465635c1cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57e772e66b5ab7ab40cba2101801f5c6cc41d51d1a766d7c1d144465635c1cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e772e66b5ab7ab40cba2101801f5c6cc41d51d1a766d7c1d144465635c1cfc", kill_on_drop: false }`
[INFO] [stdout] 57e772e66b5ab7ab40cba2101801f5c6cc41d51d1a766d7c1d144465635c1cfc
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea72521fd02e4fc4a673902b15e5f316e60538abd27f8b11e965af6e7110de5d
[INFO] running `Command { std: "docker" "start" "-a" "ea72521fd02e4fc4a673902b15e5f316e60538abd27f8b11e965af6e7110de5d", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling casing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                           ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:81:74
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                             ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:86:61
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:91:19
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/ascii.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/ascii.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:70:11
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |              ^^^^^             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |              ^^^^^             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                    ^^^^^             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:81:11
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<Self>;
[INFO] [stdout]    |              ^^^^^ the lifetime is elided here                                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:86:15
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<Self>;
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |               ^^^^^             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/unicode.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn upper(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]   |              ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |              |
[INFO] [stdout]   |              the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn upper(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]   |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/unicode.rs:54:11
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn lower(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]    |              ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn lower(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unicode.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn capitalized(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |                    ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn capitalized(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unicode.rs:159:11
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn camel(&self, separator: Separator<&[char]>, mode: super::Camel, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |              ^^^^^ the lifetime is elided here                                             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn camel(&self, separator: Separator<&[char]>, mode: super::Camel, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unicode.rs:230:15
[INFO] [stdout]     |
[INFO] [stdout] 230 |     fn separated(&self, separator: Separator<char>, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 230 |     fn separated(&self, separator: Separator<char>, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unicode.rs:280:12
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn header(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |               ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn header(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ascii.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn upper(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]    |              ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn upper(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ascii.rs:71:11
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn lower(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]    |              ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn lower(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ascii.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn capitalized(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |                    ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn capitalized(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ascii.rs:176:11
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn camel(&self, separator: Separator<&[u8]>, mode: super::Camel, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |              ^^^^^ the lifetime is elided here                                           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn camel(&self, separator: Separator<&[u8]>, mode: super::Camel, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ascii.rs:247:15
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn separated(&self, separator: Separator<u8>, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here                    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn separated(&self, separator: Separator<u8>, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ascii.rs:297:12
[INFO] [stdout]     |
[INFO] [stdout] 297 |     fn header(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |               ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 297 |     fn header(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "ea72521fd02e4fc4a673902b15e5f316e60538abd27f8b11e965af6e7110de5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea72521fd02e4fc4a673902b15e5f316e60538abd27f8b11e965af6e7110de5d", kill_on_drop: false }`
[INFO] [stdout] ea72521fd02e4fc4a673902b15e5f316e60538abd27f8b11e965af6e7110de5d
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0384e395a6bfe651740c9230456ff537af438240c5c3c0b1db6495306e2e96ab
[INFO] running `Command { std: "docker" "start" "-a" "0384e395a6bfe651740c9230456ff537af438240c5c3c0b1db6495306e2e96ab", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                           ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:81:74
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                             ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:86:61
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:91:19
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/ascii.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/ascii.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:70:11
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |              ^^^^^             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |              ^^^^^             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                    ^^^^^             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:81:11
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<Self>;
[INFO] [stdout]    |              ^^^^^ the lifetime is elided here                                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:86:15
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<Self>;
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here                        ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |               ^^^^^             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<'_, Self>;
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/unicode.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn upper(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]   |              ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |              |
[INFO] [stdout]   |              the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn upper(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]   |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/unicode.rs:54:11
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn lower(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]    |              ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn lower(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unicode.rs:100:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn capitalized(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |                    ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn capitalized(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unicode.rs:159:11
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn camel(&self, separator: Separator<&[char]>, mode: super::Camel, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |              ^^^^^ the lifetime is elided here                                             ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn camel(&self, separator: Separator<&[char]>, mode: super::Camel, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unicode.rs:230:15
[INFO] [stdout]     |
[INFO] [stdout] 230 |     fn separated(&self, separator: Separator<char>, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 230 |     fn separated(&self, separator: Separator<char>, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unicode.rs:280:12
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn header(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |               ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn header(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ascii.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn upper(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]    |              ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn upper(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ascii.rs:71:11
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn lower(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]    |              ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |              |
[INFO] [stdout]    |              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn lower(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ascii.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn capitalized(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |                    ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn capitalized(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ascii.rs:176:11
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn camel(&self, separator: Separator<&[u8]>, mode: super::Camel, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |              ^^^^^ the lifetime is elided here                                           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn camel(&self, separator: Separator<&[u8]>, mode: super::Camel, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ascii.rs:247:15
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn separated(&self, separator: Separator<u8>, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here                    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn separated(&self, separator: Separator<u8>, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ascii.rs:297:12
[INFO] [stdout]     |
[INFO] [stdout] 297 |     fn header(&self, _locale: Locale) -> Cow<Self> {
[INFO] [stdout]     |               ^^^^^                      ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 297 |     fn header(&self, _locale: Locale) -> Cow<'_, Self> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling casing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(test))]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn upper(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn lower(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                     ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn capitalized(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                           ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:81:74
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn camel(&self, separators: Separator<&[Self::Character]>, mode: Camel, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                             ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:86:61
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn separated(&self, separator: Separator<Self::Character>, Locale) -> Cow<Self>;
[INFO] [stdout]    |                                                                ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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:91:19
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn header(&self, Locale) -> Cow<Self>;
[INFO] [stdout]    |                      ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Locale`
[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: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/ascii.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/ascii.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `casing` (lib test) due to 1 previous error; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0384e395a6bfe651740c9230456ff537af438240c5c3c0b1db6495306e2e96ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0384e395a6bfe651740c9230456ff537af438240c5c3c0b1db6495306e2e96ab", kill_on_drop: false }`
[INFO] [stdout] 0384e395a6bfe651740c9230456ff537af438240c5c3c0b1db6495306e2e96ab
