[INFO] fetching crate huam-rust-utils 0.1.1...
[INFO] checking huam-rust-utils-0.1.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate huam-rust-utils 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate huam-rust-utils 0.1.1
[INFO] finished tweaking crates.io crate huam-rust-utils 0.1.1
[INFO] tweaked toml for crates.io crate huam-rust-utils 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate huam-rust-utils 0.1.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f5f48bc626cfb70f4b7a627679a31500c021db42e73bc5c69fbc7f0a7301d0c
[INFO] running `Command { std: "docker" "start" "-a" "6f5f48bc626cfb70f4b7a627679a31500c021db42e73bc5c69fbc7f0a7301d0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f5f48bc626cfb70f4b7a627679a31500c021db42e73bc5c69fbc7f0a7301d0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f5f48bc626cfb70f4b7a627679a31500c021db42e73bc5c69fbc7f0a7301d0c", kill_on_drop: false }`
[INFO] [stdout] 6f5f48bc626cfb70f4b7a627679a31500c021db42e73bc5c69fbc7f0a7301d0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b541f809512bd354ff3593b6e198dfef0f62623b172e02285f16a0bfba836645
[INFO] running `Command { std: "docker" "start" "-a" "b541f809512bd354ff3593b6e198dfef0f62623b172e02285f16a0bfba836645", kill_on_drop: false }`
[INFO] [stderr]     Checking huam-rust-utils v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `substrings_series` is never used
[INFO] [stdout]  --> src/str_uril.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn substrings_series(s: &str) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `repeat` is never used
[INFO] [stdout]   --> src/str_uril.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn repeat(s: &str, n: usize) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_chinese` is never used
[INFO] [stdout]  --> src/str_uril/is_.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn is_chinese(s: &str) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_digit` is never used
[INFO] [stdout]  --> src/str_uril/is_.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn is_digit(s: &str) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_alphabetic` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn is_alphabetic(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_alphanumeric` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn is_alphanumeric(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_negative` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn is_negative(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_symbol` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn is_symbol(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_boolean` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn is_boolean(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_contain_char_num` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn is_contain_char_num(s: &str, c: char) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_any_eq` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn is_any_eq(s: &str, v: &[&str]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_all_eq` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn is_all_eq(s: &str, v: &[&str]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_all_eq2` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn is_all_eq2(s: &str, v: &[&str]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `capitalize` is never used
[INFO] [stdout]  --> src/str_uril/convert.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn capitalize(s: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `uncapitalize` is never used
[INFO] [stdout]   --> src/str_uril/convert.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn uncapitalize(s: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `camel_case` is never used
[INFO] [stdout]   --> src/str_uril/convert.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn camel_case(s: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `camel_case_lower` is never used
[INFO] [stdout]   --> src/str_uril/convert.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn camel_case_lower(s: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substrings_series` is never used
[INFO] [stdout]  --> src/str_uril.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn substrings_series(s: &str) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `repeat` is never used
[INFO] [stdout]   --> src/str_uril.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn repeat(s: &str, n: usize) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_chinese` is never used
[INFO] [stdout]  --> src/str_uril/is_.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn is_chinese(s: &str) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_digit` is never used
[INFO] [stdout]  --> src/str_uril/is_.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn is_digit(s: &str) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_alphabetic` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn is_alphabetic(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_alphanumeric` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn is_alphanumeric(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_negative` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn is_negative(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_symbol` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn is_symbol(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_boolean` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn is_boolean(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_contain_char_num` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn is_contain_char_num(s: &str, c: char) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_any_eq` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn is_any_eq(s: &str, v: &[&str]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_all_eq` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn is_all_eq(s: &str, v: &[&str]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_all_eq2` is never used
[INFO] [stdout]   --> src/str_uril/is_.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn is_all_eq2(s: &str, v: &[&str]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `capitalize` is never used
[INFO] [stdout]  --> src/str_uril/convert.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn capitalize(s: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `uncapitalize` is never used
[INFO] [stdout]   --> src/str_uril/convert.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn uncapitalize(s: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `camel_case` is never used
[INFO] [stdout]   --> src/str_uril/convert.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn camel_case(s: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `camel_case_lower` is never used
[INFO] [stdout]   --> src/str_uril/convert.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn camel_case_lower(s: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "b541f809512bd354ff3593b6e198dfef0f62623b172e02285f16a0bfba836645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b541f809512bd354ff3593b6e198dfef0f62623b172e02285f16a0bfba836645", kill_on_drop: false }`
[INFO] [stdout] b541f809512bd354ff3593b6e198dfef0f62623b172e02285f16a0bfba836645