[INFO] fetching crate roe 0.0.7... [INFO] checking roe-0.0.7 against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-1 [INFO] extracting crate roe 0.0.7 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate roe 0.0.7 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate roe 0.0.7 [INFO] tweaked toml for crates.io crate roe 0.0.7 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate roe 0.0.7 on toolchain 38c2997544af84fe301d600d6896397738163002 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "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" "+38c2997544af84fe301d600d6896397738163002" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 50 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b260c2141868d40523ec0646a8b3981cc6df984749941dc53ed61612e477bd7a [INFO] running `Command { std: "docker" "start" "-a" "b260c2141868d40523ec0646a8b3981cc6df984749941dc53ed61612e477bd7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b260c2141868d40523ec0646a8b3981cc6df984749941dc53ed61612e477bd7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b260c2141868d40523ec0646a8b3981cc6df984749941dc53ed61612e477bd7a", kill_on_drop: false }` [INFO] [stdout] b260c2141868d40523ec0646a8b3981cc6df984749941dc53ed61612e477bd7a [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cea8775112c6e3a75598ccf0521ed07ca49cef9d444d07dd3192b3f0946831f8 [INFO] running `Command { std: "docker" "start" "-a" "cea8775112c6e3a75598ccf0521ed07ca49cef9d444d07dd3192b3f0946831f8", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.106 [INFO] [stderr] Compiling unicode-ident v1.0.24 [INFO] [stderr] Compiling quote v1.0.45 [INFO] [stderr] Checking stable_deref_trait v1.2.1 [INFO] [stderr] Checking litemap v0.8.1 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Checking writeable v0.6.2 [INFO] [stderr] Compiling icu_normalizer_data v2.1.1 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling icu_properties_data v2.1.2 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Checking memchr v2.8.0 [INFO] [stderr] Checking hashbrown v0.16.1 [INFO] [stderr] Checking equivalent v1.0.2 [INFO] [stderr] Checking percent-encoding v2.3.2 [INFO] [stderr] Compiling pulldown-cmark v0.9.6 [INFO] [stderr] Checking winnow v0.5.40 [INFO] [stderr] Checking utf8_iter v1.0.4 [INFO] [stderr] Checking form_urlencoded v1.2.2 [INFO] [stderr] Checking bitflags v2.11.0 [INFO] [stderr] Checking unicase v2.9.0 [INFO] [stderr] Checking semver v1.0.27 [INFO] [stderr] Checking bstr v1.12.1 [INFO] [stderr] Checking roe v0.0.7 (/opt/rustwide/workdir) [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:343:40","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:344:38","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:476:40","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:606:40","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0} [INFO] [stderr] Checking indexmap v2.13.0 [INFO] [stderr] Checking syn v2.0.117 [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/titlecase/full.rs:95:44 [INFO] [stdout] | [INFO] [stdout] 95 | ToCase::ToTitlecase(ch.to_titlecase()) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: call with fully qualified syntax `unicode::titlecase::Titlecase::to_titlecase(...)` to keep using the current method [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default [INFO] [stdout] help: add `#![feature(titlecase)]` to the crate attributes to enable `char::methods::::to_titlecase` [INFO] [stdout] --> src/lib.rs:106:1 [INFO] [stdout] | [INFO] [stdout] 106 + #![feature(titlecase)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking serde_spanned v0.6.9 [INFO] [stderr] Checking toml_datetime v0.6.11 [INFO] [stderr] Checking toml_edit v0.19.15 [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stderr] Compiling zerovec-derive v0.11.2 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Checking toml v0.7.8 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling yoke-derive v0.8.1 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking yoke v0.8.1 [INFO] [stderr] Checking zerotrie v0.2.3 [INFO] [stderr] Checking zerovec v0.11.5 [INFO] [stderr] Checking tinystr v0.8.2 [INFO] [stderr] Checking potential_utf v0.1.4 [INFO] [stderr] Checking icu_collections v2.1.1 [INFO] [stderr] Checking icu_locale_core v2.1.1 [INFO] [stderr] Checking icu_provider v2.1.1 [INFO] [stderr] Checking icu_properties v2.1.2 [INFO] [stderr] Checking icu_normalizer v2.1.1 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Checking idna v1.1.0 [INFO] [stderr] Checking url v2.5.8 [INFO] [stderr] Checking version-sync v0.9.5 [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:343:40","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:344:38","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:476:40","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:606:40","p":1,"ph":0,"wa":0,"pa":0,"a":0,"pos":0,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":0,"a_opt":0,"sz_no_dedup":0,"sz_old":0,"sz_opt":0} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lowercase/full.rs:272:16","p":2,"ph":2,"wa":0,"pa":0,"a":2,"pos":2,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":2,"a_opt":2,"sz_no_dedup":32,"sz_old":32,"sz_opt":32} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lowercase/full.rs:374:20","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/titlecase/full.rs:433:20","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/unicode/std_case_mapping_iter.rs:121:27","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/unicode/std_case_mapping_iter.rs:124:27","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/unicode/std_case_mapping_iter.rs:127:27","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/unicode/std_case_mapping_iter.rs:130:27","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/uppercase/full.rs:405:20","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stderr] [FMTARGS] {"crate":"roe","loc":"src/lib.rs:638:27","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":0,"named":0,"cap":1,"ucap":1,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16} [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/titlecase/full.rs:95:44 [INFO] [stdout] | [INFO] [stdout] 95 | ToCase::ToTitlecase(ch.to_titlecase()) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: call with fully qualified syntax `unicode::titlecase::Titlecase::to_titlecase(...)` to keep using the current method [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default [INFO] [stdout] help: add `#![feature(titlecase)]` to the crate attributes to enable `char::methods::::to_titlecase` [INFO] [stdout] --> src/lib.rs:106:1 [INFO] [stdout] | [INFO] [stdout] 106 + #![feature(titlecase)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/unicode/titlecase.rs:86:24 [INFO] [stdout] | [INFO] [stdout] 86 | assert_eq!('ß'.to_titlecase().collect::>(), ['S', 's']); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: call with fully qualified syntax `unicode::titlecase::Titlecase::to_titlecase(...)` to keep using the current method [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] help: add `#![feature(titlecase)]` to the crate attributes to enable `char::methods::::to_titlecase` [INFO] [stdout] --> src/lib.rs:106:1 [INFO] [stdout] | [INFO] [stdout] 106 + #![feature(titlecase)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/unicode/titlecase.rs:87:24 [INFO] [stdout] | [INFO] [stdout] 87 | assert_eq!('DŽ'.to_titlecase().collect::>(), ['Dž']); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: call with fully qualified syntax `unicode::titlecase::Titlecase::to_titlecase(...)` to keep using the current method [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] help: add `#![feature(titlecase)]` to the crate attributes to enable `char::methods::::to_titlecase` [INFO] [stdout] --> src/lib.rs:106:1 [INFO] [stdout] | [INFO] [stdout] 106 + #![feature(titlecase)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/unicode/titlecase.rs:88:24 [INFO] [stdout] | [INFO] [stdout] 88 | assert_eq!('ffl'.to_titlecase().collect::>(), ['F', 'f', 'l']); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: call with fully qualified syntax `unicode::titlecase::Titlecase::to_titlecase(...)` to keep using the current method [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] help: add `#![feature(titlecase)]` to the crate attributes to enable `char::methods::::to_titlecase` [INFO] [stdout] --> src/lib.rs:106:1 [INFO] [stdout] | [INFO] [stdout] 106 + #![feature(titlecase)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/unicode/titlecase.rs:89:24 [INFO] [stdout] | [INFO] [stdout] 89 | assert_eq!('i'.to_titlecase().collect::>(), ['I']); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: call with fully qualified syntax `unicode::titlecase::Titlecase::to_titlecase(...)` to keep using the current method [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] help: add `#![feature(titlecase)]` to the crate attributes to enable `char::methods::::to_titlecase` [INFO] [stdout] --> src/lib.rs:106:1 [INFO] [stdout] | [INFO] [stdout] 106 + #![feature(titlecase)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/unicode/titlecase.rs:90:24 [INFO] [stdout] | [INFO] [stdout] 90 | assert_eq!('A'.to_titlecase().collect::>(), ['A']); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: call with fully qualified syntax `unicode::titlecase::Titlecase::to_titlecase(...)` to keep using the current method [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] help: add `#![feature(titlecase)]` to the crate attributes to enable `char::methods::::to_titlecase` [INFO] [stdout] --> src/lib.rs:106:1 [INFO] [stdout] | [INFO] [stdout] 106 + #![feature(titlecase)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/unicode/titlecase.rs:95:28 [INFO] [stdout] | [INFO] [stdout] 95 | let mut iter = 'ffl'.to_titlecase(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: call with fully qualified syntax `unicode::titlecase::Titlecase::to_titlecase(...)` to keep using the current method [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] help: add `#![feature(titlecase)]` to the crate attributes to enable `char::methods::::to_titlecase` [INFO] [stdout] --> src/lib.rs:106:1 [INFO] [stdout] | [INFO] [stdout] 106 + #![feature(titlecase)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.17s [INFO] running `Command { std: "docker" "inspect" "cea8775112c6e3a75598ccf0521ed07ca49cef9d444d07dd3192b3f0946831f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cea8775112c6e3a75598ccf0521ed07ca49cef9d444d07dd3192b3f0946831f8", kill_on_drop: false }` [INFO] [stdout] cea8775112c6e3a75598ccf0521ed07ca49cef9d444d07dd3192b3f0946831f8