[INFO] cloning repository https://github.com/Bech1337/programming_language
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bech1337/programming_language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBech1337%2Fprogramming_language"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBech1337%2Fprogramming_language'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8458b6fc013917f4d80517f7526f63f7865f89f4
[INFO] testing Bech1337/programming_language against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBech1337%2Fprogramming_language" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Bech1337/programming_language on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Bech1337/programming_language
[INFO] finished tweaking git repo https://github.com/Bech1337/programming_language
[INFO] tweaked toml for git repo https://github.com/Bech1337/programming_language written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Bech1337/programming_language already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3a3bdb6a7e01728782cfcd28fc0ae37d4112930e04392e3c23be3d34ae6f5c89
[INFO] running `"docker" "start" "-a" "3a3bdb6a7e01728782cfcd28fc0ae37d4112930e04392e3c23be3d34ae6f5c89"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `test_string`
[INFO] [stderr]  --> src/lexer/is.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut test_string = char::to_string(&chars[index]);
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_string`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keywords`
[INFO] [stderr]  --> src/lexer/is.rs:2:56
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn is_keyword(mut index: usize, chars: &Vec<char>, keywords: &Vec<&str>) -> bool {
[INFO] [stderr]   |                                                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keywords`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/lexer/is.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut test_string = char::to_string(&chars[index]);
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.74s
[INFO] running `"docker" "inspect" "3a3bdb6a7e01728782cfcd28fc0ae37d4112930e04392e3c23be3d34ae6f5c89"`
[INFO] running `"docker" "rm" "-f" "3a3bdb6a7e01728782cfcd28fc0ae37d4112930e04392e3c23be3d34ae6f5c89"`
[INFO] [stdout] 3a3bdb6a7e01728782cfcd28fc0ae37d4112930e04392e3c23be3d34ae6f5c89
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15cdd1c4931f2c3b00a2540c9ed939939644612f2ba89aa58686d5ccc490b951
[INFO] running `"docker" "start" "-a" "15cdd1c4931f2c3b00a2540c9ed939939644612f2ba89aa58686d5ccc490b951"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `test_string`
[INFO] [stderr]  --> src/lexer/is.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut test_string = char::to_string(&chars[index]);
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_string`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keywords`
[INFO] [stderr]  --> src/lexer/is.rs:2:56
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn is_keyword(mut index: usize, chars: &Vec<char>, keywords: &Vec<&str>) -> bool {
[INFO] [stderr]   |                                                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keywords`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/lexer/is.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut test_string = char::to_string(&chars[index]);
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "15cdd1c4931f2c3b00a2540c9ed939939644612f2ba89aa58686d5ccc490b951"`
[INFO] running `"docker" "rm" "-f" "15cdd1c4931f2c3b00a2540c9ed939939644612f2ba89aa58686d5ccc490b951"`
[INFO] [stdout] 15cdd1c4931f2c3b00a2540c9ed939939644612f2ba89aa58686d5ccc490b951
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 183a503992308a59b882dde4d38c3a22850494f70d6f1549ee9e029c553ee445
[INFO] running `"docker" "start" "-a" "183a503992308a59b882dde4d38c3a22850494f70d6f1549ee9e029c553ee445"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `test_string`
[INFO] [stderr]  --> src/lexer/is.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut test_string = char::to_string(&chars[index]);
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_string`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keywords`
[INFO] [stderr]  --> src/lexer/is.rs:2:56
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn is_keyword(mut index: usize, chars: &Vec<char>, keywords: &Vec<&str>) -> bool {
[INFO] [stderr]   |                                                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keywords`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/lexer/is.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut test_string = char::to_string(&chars[index]);
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/compiler-552112457284737b
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "183a503992308a59b882dde4d38c3a22850494f70d6f1549ee9e029c553ee445"`
[INFO] running `"docker" "rm" "-f" "183a503992308a59b882dde4d38c3a22850494f70d6f1549ee9e029c553ee445"`
[INFO] [stdout] 183a503992308a59b882dde4d38c3a22850494f70d6f1549ee9e029c553ee445