[INFO] cloning repository https://github.com/gokayokyay/monkey-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gokayokyay/monkey-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgokayokyay%2Fmonkey-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgokayokyay%2Fmonkey-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c5d8596a93a7ec55af05ae8ae9e32cae857011bc
[INFO] testing gokayokyay/monkey-rust against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgokayokyay%2Fmonkey-rust" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gokayokyay/monkey-rust on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/gokayokyay/monkey-rust
[INFO] finished tweaking git repo https://github.com/gokayokyay/monkey-rust
[INFO] tweaked toml for git repo https://github.com/gokayokyay/monkey-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/gokayokyay/monkey-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-06-03" "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] f8f26ac8c61bf7ac68b07d5851f5334facb79d419967e8560801f54e9b0f4969
[INFO] running `"docker" "start" "-a" "f8f26ac8c61bf7ac68b07d5851f5334facb79d419967e8560801f54e9b0f4969"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]  --> src/repl/repl.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   while true {
[INFO] [stderr]   |   ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable while-let pattern
[INFO] [stderr]   --> src/repl/repl.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 | /         while let token = l.next_token() {
[INFO] [stderr] 17 | |           if token.token_type == TokenTypes::EOF || token.token_type == TokenTypes::ILLEGAL {
[INFO] [stderr] 18 | |             break;
[INFO] [stderr] 19 | |           }
[INFO] [stderr] 20 | |           println!("{:?}", token);
[INFO] [stderr] 21 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/repl/repl.rs:13:10
[INFO] [stderr]    |
[INFO] [stderr] 13 |       Ok(n) => {
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `peekChar` should have a snake case name
[INFO] [stderr]    --> src/lexer/lexer.rs:112:6
[INFO] [stderr]     |
[INFO] [stderr] 112 |   fn peekChar(&mut self) -> char {
[INFO] [stderr]     |      ^^^^^^^^ help: convert the identifier to snake case: `peek_char`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "f8f26ac8c61bf7ac68b07d5851f5334facb79d419967e8560801f54e9b0f4969"`
[INFO] running `"docker" "rm" "-f" "f8f26ac8c61bf7ac68b07d5851f5334facb79d419967e8560801f54e9b0f4969"`
[INFO] [stdout] f8f26ac8c61bf7ac68b07d5851f5334facb79d419967e8560801f54e9b0f4969
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-06-03" "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] 39a0286ffed195eca830acb2c5104dff0e6a6d5d70216b0603b53435a5e79186
[INFO] running `"docker" "start" "-a" "39a0286ffed195eca830acb2c5104dff0e6a6d5d70216b0603b53435a5e79186"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]  --> src/repl/repl.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   while true {
[INFO] [stderr]   |   ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable while-let pattern
[INFO] [stderr]   --> src/repl/repl.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 | /         while let token = l.next_token() {
[INFO] [stderr] 17 | |           if token.token_type == TokenTypes::EOF || token.token_type == TokenTypes::ILLEGAL {
[INFO] [stderr] 18 | |             break;
[INFO] [stderr] 19 | |           }
[INFO] [stderr] 20 | |           println!("{:?}", token);
[INFO] [stderr] 21 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/repl/repl.rs:13:10
[INFO] [stderr]    |
[INFO] [stderr] 13 |       Ok(n) => {
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `peekChar` should have a snake case name
[INFO] [stderr]    --> src/lexer/lexer.rs:112:6
[INFO] [stderr]     |
[INFO] [stderr] 112 |   fn peekChar(&mut self) -> char {
[INFO] [stderr]     |      ^^^^^^^^ help: convert the identifier to snake case: `peek_char`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "39a0286ffed195eca830acb2c5104dff0e6a6d5d70216b0603b53435a5e79186"`
[INFO] running `"docker" "rm" "-f" "39a0286ffed195eca830acb2c5104dff0e6a6d5d70216b0603b53435a5e79186"`
[INFO] [stdout] 39a0286ffed195eca830acb2c5104dff0e6a6d5d70216b0603b53435a5e79186
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2020-06-03" "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] 175d83b8c6241a38d85627a5756534654649ae24527ab2b7029fb91e3e81086a
[INFO] running `"docker" "start" "-a" "175d83b8c6241a38d85627a5756534654649ae24527ab2b7029fb91e3e81086a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]  --> src/repl/repl.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   while true {
[INFO] [stderr]   |   ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable while-let pattern
[INFO] [stderr]   --> src/repl/repl.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 | /         while let token = l.next_token() {
[INFO] [stderr] 17 | |           if token.token_type == TokenTypes::EOF || token.token_type == TokenTypes::ILLEGAL {
[INFO] [stderr] 18 | |             break;
[INFO] [stderr] 19 | |           }
[INFO] [stderr] 20 | |           println!("{:?}", token);
[INFO] [stderr] 21 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/repl/repl.rs:13:10
[INFO] [stderr]    |
[INFO] [stderr] 13 |       Ok(n) => {
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `peekChar` should have a snake case name
[INFO] [stderr]    --> src/lexer/lexer.rs:112:6
[INFO] [stderr]     |
[INFO] [stderr] 112 |   fn peekChar(&mut self) -> char {
[INFO] [stderr]     |      ^^^^^^^^ help: convert the identifier to snake case: `peek_char`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/monkey-60cb66de33526d04
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lexer::lexer::tests::test_next_token ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "175d83b8c6241a38d85627a5756534654649ae24527ab2b7029fb91e3e81086a"`
[INFO] running `"docker" "rm" "-f" "175d83b8c6241a38d85627a5756534654649ae24527ab2b7029fb91e3e81086a"`
[INFO] [stdout] 175d83b8c6241a38d85627a5756534654649ae24527ab2b7029fb91e3e81086a