[INFO] cloning repository https://github.com/vardbabayan/rs_light_lexer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vardbabayan/rs_light_lexer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvardbabayan%2Frs_light_lexer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvardbabayan%2Frs_light_lexer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bdabf985f6e8bb00e42e83c895e3fe6a95393dc
[INFO] checking vardbabayan/rs_light_lexer against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvardbabayan%2Frs_light_lexer" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vardbabayan/rs_light_lexer
[INFO] finished tweaking git repo https://github.com/vardbabayan/rs_light_lexer
[INFO] tweaked toml for git repo https://github.com/vardbabayan/rs_light_lexer written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vardbabayan/rs_light_lexer on toolchain 8a0378607d6b34c242e3bfa75554871be641864b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vardbabayan/rs_light_lexer 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" "+8a0378607d6b34c242e3bfa75554871be641864b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 593f752939e17ec90f6087812dd0dac44dfc6cefb6ba5073baab792d609f44e6
[INFO] running `Command { std: "docker" "start" "-a" "593f752939e17ec90f6087812dd0dac44dfc6cefb6ba5073baab792d609f44e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "593f752939e17ec90f6087812dd0dac44dfc6cefb6ba5073baab792d609f44e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "593f752939e17ec90f6087812dd0dac44dfc6cefb6ba5073baab792d609f44e6", kill_on_drop: false }`
[INFO] [stdout] 593f752939e17ec90f6087812dd0dac44dfc6cefb6ba5073baab792d609f44e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 241865208f213dd895cb9ccadb6f93abc39796629e42c910e6a457f854d3722b
[INFO] running `Command { std: "docker" "start" "-a" "241865208f213dd895cb9ccadb6f93abc39796629e42c910e6a457f854d3722b", kill_on_drop: false }`
[INFO] [stderr]     Checking lexer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static `CODE_FRAGMENT` is never used
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | static CODE_FRAGMENT: &'static str = r#"// This is the main function.
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SourceUtility` is never constructed
[INFO] [stdout]   --> src/main.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct SourceUtility {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `count_total_lines`, `count_code_lines`, `count_code_symbols`, `count_empty_lines`, and `count_comment_lines` are never used
[INFO] [stdout]   --> src/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl SourceUtility {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 33 |     pub fn new(code_source: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn count_total_lines(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn count_code_lines(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn count_code_symbols(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn count_empty_lines(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn count_comment_lines(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `test_fragment` should have an upper case name
[INFO] [stdout]    --> src/main.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 102 |         static test_fragment: &'static str = r#"//EDGE CASE
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 102 -         static test_fragment: &'static str = r#"//EDGE CASE
[INFO] [stdout] 102 +         static TEST_FRAGMENT: &'static str = r#"//EDGE CASE
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `test_fragment` should have an upper case name
[INFO] [stdout]    --> src/main.rs:120:16
[INFO] [stdout]     |
[INFO] [stdout] 120 |         static test_fragment: &'static str = r#"
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]     |
[INFO] [stdout] 120 -         static test_fragment: &'static str = r#"
[INFO] [stdout] 120 +         static TEST_FRAGMENT: &'static str = r#"
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "241865208f213dd895cb9ccadb6f93abc39796629e42c910e6a457f854d3722b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "241865208f213dd895cb9ccadb6f93abc39796629e42c910e6a457f854d3722b", kill_on_drop: false }`
[INFO] [stdout] 241865208f213dd895cb9ccadb6f93abc39796629e42c910e6a457f854d3722b