[INFO] cloning repository https://github.com/abiriadev/pig-latin-translator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abiriadev/pig-latin-translator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabiriadev%2Fpig-latin-translator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabiriadev%2Fpig-latin-translator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff9e941f685f234b26d4161d168ad1c456d04e98
[INFO] testing abiriadev/pig-latin-translator against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabiriadev%2Fpig-latin-translator" "/workspace/builds/worker-109/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-109/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/abiriadev/pig-latin-translator on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/abiriadev/pig-latin-translator
[INFO] finished tweaking git repo https://github.com/abiriadev/pig-latin-translator
[INFO] tweaked toml for git repo https://github.com/abiriadev/pig-latin-translator written to /workspace/builds/worker-109/source/Cargo.toml
[INFO] crate git repo https://github.com/abiriadev/pig-latin-translator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19a368abfdc81f553e096fe7b51765e270ce79fff93248170ae40e8d535ce382
[INFO] running `Command { std: "docker" "start" "-a" "19a368abfdc81f553e096fe7b51765e270ce79fff93248170ae40e8d535ce382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19a368abfdc81f553e096fe7b51765e270ce79fff93248170ae40e8d535ce382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19a368abfdc81f553e096fe7b51765e270ce79fff93248170ae40e8d535ce382", kill_on_drop: false }`
[INFO] [stdout] 19a368abfdc81f553e096fe7b51765e270ce79fff93248170ae40e8d535ce382
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1215b670cbf7477da60d742da9399f182fbb57470d8a7ab4fed8a21fa02e2b2d
[INFO] running `Command { std: "docker" "start" "-a" "1215b670cbf7477da60d742da9399f182fbb57470d8a7ab4fed8a21fa02e2b2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling pig-latin-translator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         for mut word in input.split_whitespace() {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ASCII_ALPHABET_CAPITAL_END`
[INFO] [stdout]  --> src/alphabet_tool/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | const ASCII_ALPHABET_CAPITAL_END: u8 = 90;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ASCII_ALPHABET_LOWER_END`
[INFO] [stdout]  --> src/alphabet_tool/mod.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const ASCII_ALPHABET_LOWER_END: u8 = 122;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_upper_case`
[INFO] [stdout]  --> src/alphabet_tool/mod.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn to_upper_case(string: &String) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `upper`
[INFO] [stdout]   --> src/alphabet_tool/mod.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn upper(char: char) -> char {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_alphabet`
[INFO] [stdout]   --> src/alphabet_tool/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn is_alphabet(char: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_lower`
[INFO] [stdout]   --> src/alphabet_tool/mod.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn is_lower(char: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_capital`
[INFO] [stdout]   --> src/alphabet_tool/mod.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn is_capital(char: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         io::stdin().read_line(&mut input);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "1215b670cbf7477da60d742da9399f182fbb57470d8a7ab4fed8a21fa02e2b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1215b670cbf7477da60d742da9399f182fbb57470d8a7ab4fed8a21fa02e2b2d", kill_on_drop: false }`
[INFO] [stdout] 1215b670cbf7477da60d742da9399f182fbb57470d8a7ab4fed8a21fa02e2b2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 095eebbc4de242ddd2d610802dc8945884ffb797d95c6e9d2bd7ef0802c6e341
[INFO] running `Command { std: "docker" "start" "-a" "095eebbc4de242ddd2d610802dc8945884ffb797d95c6e9d2bd7ef0802c6e341", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pig-latin-translator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         for mut word in input.split_whitespace() {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ASCII_ALPHABET_CAPITAL_END`
[INFO] [stdout]  --> src/alphabet_tool/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | const ASCII_ALPHABET_CAPITAL_END: u8 = 90;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ASCII_ALPHABET_LOWER_END`
[INFO] [stdout]  --> src/alphabet_tool/mod.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const ASCII_ALPHABET_LOWER_END: u8 = 122;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_upper_case`
[INFO] [stdout]  --> src/alphabet_tool/mod.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn to_upper_case(string: &String) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `upper`
[INFO] [stdout]   --> src/alphabet_tool/mod.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn upper(char: char) -> char {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_alphabet`
[INFO] [stdout]   --> src/alphabet_tool/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn is_alphabet(char: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_lower`
[INFO] [stdout]   --> src/alphabet_tool/mod.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn is_lower(char: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_capital`
[INFO] [stdout]   --> src/alphabet_tool/mod.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn is_capital(char: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         io::stdin().read_line(&mut input);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.05s
[INFO] running `Command { std: "docker" "inspect" "095eebbc4de242ddd2d610802dc8945884ffb797d95c6e9d2bd7ef0802c6e341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "095eebbc4de242ddd2d610802dc8945884ffb797d95c6e9d2bd7ef0802c6e341", kill_on_drop: false }`
[INFO] [stdout] 095eebbc4de242ddd2d610802dc8945884ffb797d95c6e9d2bd7ef0802c6e341
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3150ef0f925c64791afcf75552a32aa1828928442cc92c19b4bbfe7997336f2f
[INFO] running `Command { std: "docker" "start" "-a" "3150ef0f925c64791afcf75552a32aa1828928442cc92c19b4bbfe7997336f2f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         for mut word in input.split_whitespace() {
[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: constant is never used: `ASCII_ALPHABET_CAPITAL_END`
[INFO] [stderr]  --> src/alphabet_tool/mod.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | const ASCII_ALPHABET_CAPITAL_END: u8 = 90;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `ASCII_ALPHABET_LOWER_END`
[INFO] [stderr]  --> src/alphabet_tool/mod.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const ASCII_ALPHABET_LOWER_END: u8 = 122;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_upper_case`
[INFO] [stderr]  --> src/alphabet_tool/mod.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn to_upper_case(string: &String) -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `upper`
[INFO] [stderr]   --> src/alphabet_tool/mod.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn upper(char: char) -> char {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_alphabet`
[INFO] [stderr]   --> src/alphabet_tool/mod.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn is_alphabet(char: char) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_lower`
[INFO] [stderr]   --> src/alphabet_tool/mod.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn is_lower(char: char) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_capital`
[INFO] [stderr]   --> src/alphabet_tool/mod.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn is_capital(char: char) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 22 |         io::stdin().read_line(&mut input);
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `pig-latin-translator` (bin "pig-latin-translator" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pig_latin_translator-9c234b6bb097be63)
[INFO] running `Command { std: "docker" "inspect" "3150ef0f925c64791afcf75552a32aa1828928442cc92c19b4bbfe7997336f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3150ef0f925c64791afcf75552a32aa1828928442cc92c19b4bbfe7997336f2f", kill_on_drop: false }`
[INFO] [stdout] 3150ef0f925c64791afcf75552a32aa1828928442cc92c19b4bbfe7997336f2f