[INFO] updating cached repository https://github.com/neilgall/lets-build-a-rusty-interpreter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9680f7114724d16f61320b05fb851f947fa0f5bd
[INFO] testing neilgall/lets-build-a-rusty-interpreter against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneilgall%2Flets-build-a-rusty-interpreter" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neilgall/lets-build-a-rusty-interpreter 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/neilgall/lets-build-a-rusty-interpreter
[INFO] finished tweaking git repo https://github.com/neilgall/lets-build-a-rusty-interpreter
[INFO] tweaked toml for git repo https://github.com/neilgall/lets-build-a-rusty-interpreter written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/neilgall/lets-build-a-rusty-interpreter 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] cc9a8d6a7c5157c7c59f6b94e54d808557d5299a0d2ba53cfa0690a7ab6a7fbc
[INFO] running `"docker" "start" "-a" "cc9a8d6a7c5157c7c59f6b94e54d808557d5299a0d2ba53cfa0690a7ab6a7fbc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]  --> src/number.rs:4:2
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Integer { value: i32 },
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Real`
[INFO] [stderr]  --> src/number.rs:5:2
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Real { value: String }
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `"docker" "inspect" "cc9a8d6a7c5157c7c59f6b94e54d808557d5299a0d2ba53cfa0690a7ab6a7fbc"`
[INFO] running `"docker" "rm" "-f" "cc9a8d6a7c5157c7c59f6b94e54d808557d5299a0d2ba53cfa0690a7ab6a7fbc"`
[INFO] [stdout] cc9a8d6a7c5157c7c59f6b94e54d808557d5299a0d2ba53cfa0690a7ab6a7fbc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 9e15de101be7dcc30f2418bfb19139c17f6ecaddf53944ea58cb6dd16919843e
[INFO] running `"docker" "start" "-a" "9e15de101be7dcc30f2418bfb19139c17f6ecaddf53944ea58cb6dd16919843e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]  --> src/number.rs:4:2
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Integer { value: i32 },
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Real`
[INFO] [stderr]  --> src/number.rs:5:2
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Real { value: String }
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `"docker" "inspect" "9e15de101be7dcc30f2418bfb19139c17f6ecaddf53944ea58cb6dd16919843e"`
[INFO] running `"docker" "rm" "-f" "9e15de101be7dcc30f2418bfb19139c17f6ecaddf53944ea58cb6dd16919843e"`
[INFO] [stdout] 9e15de101be7dcc30f2418bfb19139c17f6ecaddf53944ea58cb6dd16919843e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] e6582362a6e12a9947518393f25e11ca6399262599a90a9c4bdfce3fcc270ccb
[INFO] running `"docker" "start" "-a" "e6582362a6e12a9947518393f25e11ca6399262599a90a9c4bdfce3fcc270ccb"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]  --> src/number.rs:4:2
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Integer { value: i32 },
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Real`
[INFO] [stderr]  --> src/number.rs:5:2
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Real { value: String }
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/calculator-1ac9d6846dfd43dc
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test lexer::tests::integer ... ok
[INFO] [stdout] test lexer::tests::identifier ... ok
[INFO] [stdout] test lexer::tests::dot ... ok
[INFO] [stdout] test lexer::tests::assign ... ok
[INFO] [stdout] test lexer::tests::keywords ... ok
[INFO] [stdout] test lexer::tests::real ... ok
[INFO] [stdout] test lexer::tests::colon ... ok
[INFO] [stdout] test parser::tests::test_sample_program ... ok
[INFO] [stdout] test lexer::tests::alphanumeric_identifier ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e6582362a6e12a9947518393f25e11ca6399262599a90a9c4bdfce3fcc270ccb"`
[INFO] running `"docker" "rm" "-f" "e6582362a6e12a9947518393f25e11ca6399262599a90a9c4bdfce3fcc270ccb"`
[INFO] [stdout] e6582362a6e12a9947518393f25e11ca6399262599a90a9c4bdfce3fcc270ccb