[INFO] cloning repository https://github.com/jakeec/tcr_kata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakeec/tcr_kata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeec%2Ftcr_kata", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeec%2Ftcr_kata'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0226bbd8d043eb31f2922ea2135167cd45ee9e66
[INFO] checking jakeec/tcr_kata against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeec%2Ftcr_kata" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jakeec/tcr_kata
[INFO] finished tweaking git repo https://github.com/jakeec/tcr_kata
[INFO] tweaked toml for git repo https://github.com/jakeec/tcr_kata written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jakeec/tcr_kata on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jakeec/tcr_kata already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ebb07adfe9274c17e0b80c9a806f767e5fbc251a096c270fb34c9a6ac05cb98
[INFO] running `Command { std: "docker" "start" "-a" "2ebb07adfe9274c17e0b80c9a806f767e5fbc251a096c270fb34c9a6ac05cb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ebb07adfe9274c17e0b80c9a806f767e5fbc251a096c270fb34c9a6ac05cb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ebb07adfe9274c17e0b80c9a806f767e5fbc251a096c270fb34c9a6ac05cb98", kill_on_drop: false }`
[INFO] [stdout] 2ebb07adfe9274c17e0b80c9a806f767e5fbc251a096c270fb34c9a6ac05cb98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbf8a95ca0a98e9b7e2c87dc5dc1eaffebf6ab87e96d6ed3fae26c105073e15c
[INFO] running `Command { std: "docker" "start" "-a" "fbf8a95ca0a98e9b7e2c87dc5dc1eaffebf6ab87e96d6ed3fae26c105073e15c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking aho-corasick v0.7.7
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking tcr_kata v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `StringAddError` is never used
[INFO] [stdout]  --> src/string_adder.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum StringAddError {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_add` is never used
[INFO] [stdout]  --> src/string_adder.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn string_add(a: &str, b: &str) -> Result<String, StringAddError> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hex_string_add` is never used
[INFO] [stdout]   --> src/string_adder.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn hex_string_add(a: &str, b: &str) -> Result<String, StringAddError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ArgumentNotValid` is never constructed
[INFO] [stdout]  --> src/string_adder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum StringAddError {
[INFO] [stdout]   |      -------------- variant in this enum
[INFO] [stdout] 3 |     ArgumentNotValid(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StringAddError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `given_0x0F_0x0F_return_145709` should have a snake case name
[INFO] [stdout]    --> src/string_adder.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |         fn given_0x0F_0x0F_return_145709() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `given_0x0_f_0x0_f_return_145709`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `Command { std: "docker" "inspect" "fbf8a95ca0a98e9b7e2c87dc5dc1eaffebf6ab87e96d6ed3fae26c105073e15c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf8a95ca0a98e9b7e2c87dc5dc1eaffebf6ab87e96d6ed3fae26c105073e15c", kill_on_drop: false }`
[INFO] [stdout] fbf8a95ca0a98e9b7e2c87dc5dc1eaffebf6ab87e96d6ed3fae26c105073e15c
