[INFO] updating cached repository https://github.com/jlewisbrewer/rust_kana [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d67bd05ccfa84c4f3c4a587c9784f6be2a5ebb6b [INFO] checking jlewisbrewer/rust_kana against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlewisbrewer%2Frust_kana" "/workspace/builds/worker-12/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jlewisbrewer/rust_kana on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/jlewisbrewer/rust_kana [INFO] finished tweaking git repo https://github.com/jlewisbrewer/rust_kana [INFO] tweaked toml for git repo https://github.com/jlewisbrewer/rust_kana written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/jlewisbrewer/rust_kana already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 05b23afd981ba97c1a8be7c04107d4a3efef4c4229a2f3d7517938856a063d5a [INFO] running `"docker" "start" "-a" "05b23afd981ba97c1a8be7c04107d4a3efef4c4229a2f3d7517938856a063d5a"` [INFO] [stderr] Checking to_kana v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/main.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | / /// Global constant hashmaps that map Latin 1 syllables to Japanese [INFO] [stderr] 22 | | /// kana in unicode. [INFO] [stderr] | |________________________^ [INFO] [stderr] 23 | / lazy_static! { [INFO] [stderr] 24 | | static ref HIRAGANA: HashMap = { initialize_hiragana() }; [INFO] [stderr] 25 | | static ref KATAKANA: HashMap = { initialize_katakana() }; [INFO] [stderr] 26 | | static ref ROOMAJI_HIRAGANA: HashMap = { initilize_roomaji(initialize_hiragana_keys) }; [INFO] [stderr] ... | [INFO] [stderr] 30 | | [INFO] [stderr] 31 | | } [INFO] [stderr] | |_____- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/main.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | / /// Global constant hashmaps that map Latin 1 syllables to Japanese [INFO] [stderr] 22 | | /// kana in unicode. [INFO] [stderr] | |________________________^ [INFO] [stderr] 23 | / lazy_static! { [INFO] [stderr] 24 | | static ref HIRAGANA: HashMap = { initialize_hiragana() }; [INFO] [stderr] 25 | | static ref KATAKANA: HashMap = { initialize_katakana() }; [INFO] [stderr] 26 | | static ref ROOMAJI_HIRAGANA: HashMap = { initilize_roomaji(initialize_hiragana_keys) }; [INFO] [stderr] ... | [INFO] [stderr] 30 | | [INFO] [stderr] 31 | | } [INFO] [stderr] | |_____- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:740:21 [INFO] [stderr] | [INFO] [stderr] 740 | let mut temp = c.to_string(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:798:21 [INFO] [stderr] | [INFO] [stderr] 798 | let mut temp = c.to_string(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:895:9 [INFO] [stderr] | [INFO] [stderr] 895 | for mut phone in &mut eng_phones { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stderr] --> src/main.rs:736:44 [INFO] [stderr] | [INFO] [stderr] 736 | let index = digraph_vowels.into_iter().position(|x| x == &c).unwrap(); [INFO] [stderr] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(array_into_iter)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #66145 [INFO] [stderr] [INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stderr] --> src/main.rs:790:44 [INFO] [stderr] | [INFO] [stderr] 790 | let index = digraph_vowels.into_iter().position(|x| x == &c).unwrap(); [INFO] [stderr] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #66145 [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:740:21 [INFO] [stderr] | [INFO] [stderr] 740 | let mut temp = c.to_string(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:798:21 [INFO] [stderr] | [INFO] [stderr] 798 | let mut temp = c.to_string(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:895:9 [INFO] [stderr] | [INFO] [stderr] 895 | for mut phone in &mut eng_phones { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stderr] --> src/main.rs:736:44 [INFO] [stderr] | [INFO] [stderr] 736 | let index = digraph_vowels.into_iter().position(|x| x == &c).unwrap(); [INFO] [stderr] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(array_into_iter)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #66145 [INFO] [stderr] [INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stderr] --> src/main.rs:790:44 [INFO] [stderr] | [INFO] [stderr] 790 | let index = digraph_vowels.into_iter().position(|x| x == &c).unwrap(); [INFO] [stderr] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #66145 [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.25s [INFO] running `"docker" "inspect" "05b23afd981ba97c1a8be7c04107d4a3efef4c4229a2f3d7517938856a063d5a"` [INFO] running `"docker" "rm" "-f" "05b23afd981ba97c1a8be7c04107d4a3efef4c4229a2f3d7517938856a063d5a"` [INFO] [stdout] 05b23afd981ba97c1a8be7c04107d4a3efef4c4229a2f3d7517938856a063d5a