[INFO] fetching crate monkey-evaluator 0.3.0...
[INFO] testing monkey-evaluator-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate monkey-evaluator 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate monkey-evaluator 0.3.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monkey-evaluator 0.3.0
[INFO] finished tweaking crates.io crate monkey-evaluator 0.3.0
[INFO] tweaked toml for crates.io crate monkey-evaluator 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate monkey-evaluator 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded monkey-parser v0.3.0
[INFO] [stderr]   Downloaded monkey-lexer v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1d2e57e9c7465bafd11b00f2958e03552f81af7b11ea5b9f24ecd85baa1a917
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f1d2e57e9c7465bafd11b00f2958e03552f81af7b11ea5b9f24ecd85baa1a917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1d2e57e9c7465bafd11b00f2958e03552f81af7b11ea5b9f24ecd85baa1a917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1d2e57e9c7465bafd11b00f2958e03552f81af7b11ea5b9f24ecd85baa1a917", kill_on_drop: false }`
[INFO] [stdout] f1d2e57e9c7465bafd11b00f2958e03552f81af7b11ea5b9f24ecd85baa1a917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71a95c62d73aa4ba4e27d4d1557768eaba26b58a10b12dfb8fd10d5a3eb64ab7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "71a95c62d73aa4ba4e27d4d1557768eaba26b58a10b12dfb8fd10d5a3eb64ab7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling monkey-lexer v0.3.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling monkey-parser v0.3.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling monkey-evaluator v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.98s
[INFO] running `Command { std: "docker" "inspect" "71a95c62d73aa4ba4e27d4d1557768eaba26b58a10b12dfb8fd10d5a3eb64ab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71a95c62d73aa4ba4e27d4d1557768eaba26b58a10b12dfb8fd10d5a3eb64ab7", kill_on_drop: false }`
[INFO] [stdout] 71a95c62d73aa4ba4e27d4d1557768eaba26b58a10b12dfb8fd10d5a3eb64ab7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 244e2520799b5e034b93f70f671dc7fc1f164a8e448533825ed6ae67bc9b4336
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "244e2520799b5e034b93f70f671dc7fc1f164a8e448533825ed6ae67bc9b4336", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey-evaluator v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "244e2520799b5e034b93f70f671dc7fc1f164a8e448533825ed6ae67bc9b4336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244e2520799b5e034b93f70f671dc7fc1f164a8e448533825ed6ae67bc9b4336", kill_on_drop: false }`
[INFO] [stdout] 244e2520799b5e034b93f70f671dc7fc1f164a8e448533825ed6ae67bc9b4336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7a1d646b72914900de69850b0ed5c0d778693eb60ffdeb03162af0b12a700fa8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a1d646b72914900de69850b0ed5c0d778693eb60ffdeb03162af0b12a700fa8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/evaluator-40f09002da15b93a
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::test_array_builtin_functions ... ok
[INFO] [stdout] test tests::test_builtin_functions ... ok
[INFO] [stdout] test tests::test_array_index_expressions ... ok
[INFO] [stdout] test tests::test_boolean_expressions ... ok
[INFO] [stdout] test tests::test_string_concatenation ... ok
[INFO] [stdout] test tests::test_bang_operators ... ok
[INFO] [stdout] test tests::test_hash_index_expressions ... ok
[INFO] [stdout] test tests::test_if_else_expressions ... ok
[INFO] [stdout] test tests::test_return_statements ... ok
[INFO] [stdout] test tests::test_let_statements ... ok
[INFO] [stdout] test tests::test_function_application ... ok
[INFO] [stdout] test tests::test_function_object ... ok
[INFO] [stdout] test tests::test_integer_expressions ... ok
[INFO] [stdout] test tests::test_array_literals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/monkey_evaluator-84a9cd96c4da6a8a
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests evaluator
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7a1d646b72914900de69850b0ed5c0d778693eb60ffdeb03162af0b12a700fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a1d646b72914900de69850b0ed5c0d778693eb60ffdeb03162af0b12a700fa8", kill_on_drop: false }`
[INFO] [stdout] 7a1d646b72914900de69850b0ed5c0d778693eb60ffdeb03162af0b12a700fa8