[INFO] cloning repository https://github.com/timmyjose-compilers/muechak
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timmyjose-compilers/muechak" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimmyjose-compilers%2Fmuechak", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimmyjose-compilers%2Fmuechak'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71e76a517bd4e3fa592545a5e1f4ca0f56251bdd
[INFO] testing timmyjose-compilers/muechak against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimmyjose-compilers%2Fmuechak" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timmyjose-compilers/muechak on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timmyjose-compilers/muechak
[INFO] finished tweaking git repo https://github.com/timmyjose-compilers/muechak
[INFO] tweaked toml for git repo https://github.com/timmyjose-compilers/muechak written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/timmyjose-compilers/muechak already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aaa40a754fa4f71b48d5d0b8cfb76d7d4fc3b06cafd721aed16d90f5be795dc0
[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" "aaa40a754fa4f71b48d5d0b8cfb76d7d4fc3b06cafd721aed16d90f5be795dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaa40a754fa4f71b48d5d0b8cfb76d7d4fc3b06cafd721aed16d90f5be795dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa40a754fa4f71b48d5d0b8cfb76d7d4fc3b06cafd721aed16d90f5be795dc0", kill_on_drop: false }`
[INFO] [stdout] aaa40a754fa4f71b48d5d0b8cfb76d7d4fc3b06cafd721aed16d90f5be795dc0
[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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf2b471e52c1f8ece5b24cbe0ef60e9a017e80be29cf5a03d26c095a5a795fb3
[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" "bf2b471e52c1f8ece5b24cbe0ef60e9a017e80be29cf5a03d26c095a5a795fb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling arithmetic-expression-evaluator-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "bf2b471e52c1f8ece5b24cbe0ef60e9a017e80be29cf5a03d26c095a5a795fb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2b471e52c1f8ece5b24cbe0ef60e9a017e80be29cf5a03d26c095a5a795fb3", kill_on_drop: false }`
[INFO] [stdout] bf2b471e52c1f8ece5b24cbe0ef60e9a017e80be29cf5a03d26c095a5a795fb3
[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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b975041ab30ed7c90ffd983055cb86e1f9a466257c38349fa56f0589e5efa2ed
[INFO] running `Command { std: "docker" "start" "-a" "b975041ab30ed7c90ffd983055cb86e1f9a466257c38349fa56f0589e5efa2ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling arithmetic-expression-evaluator-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "b975041ab30ed7c90ffd983055cb86e1f9a466257c38349fa56f0589e5efa2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b975041ab30ed7c90ffd983055cb86e1f9a466257c38349fa56f0589e5efa2ed", kill_on_drop: false }`
[INFO] [stdout] b975041ab30ed7c90ffd983055cb86e1f9a466257c38349fa56f0589e5efa2ed
[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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4644e8c088c533a596fdd2d85aa662829452ebcc8ed82218c6aaadc8d50ca13f
[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" "4644e8c088c533a596fdd2d85aa662829452ebcc8ed82218c6aaadc8d50ca13f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/muechak-bbe72a9055ef7aeb
[INFO] [stdout] running 12 tests
[INFO] [stdout] test eval::parser::tests::test_parse_expression8 ... ok
[INFO] [stdout] test eval::parser::tests::test_parse_expression7 ... ok
[INFO] [stdout] test eval::parser::tests::test_parse_expression6 ... ok
[INFO] [stdout] test eval::parser::tests::test_parse_expression5 ... ok
[INFO] [stdout] test eval::parser::tests::test_parse_expression4 ... ok
[INFO] [stdout] test eval::ast::tests::test_add_and_subexpression ... ok
[INFO] [stdout] test eval::parser::tests::test_parse_expression1 ... ok
[INFO] [stdout] test eval::lexer::tests::test_next_token_basic ... ok
[INFO] [stdout] test eval::parser::tests::test_parse_expression2 ... ok
[INFO] [stdout] test eval::ast::tests::test_add_expression ... ok
[INFO] [stdout] test eval::parser::tests::test_parse_expression3 ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arithmetic_expression_evaluator_rust-4e12d0c6bc49a6f4
[INFO] [stdout] test eval::lexer::tests::test_next_token_advanced ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests muechak
[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] [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 `Command { std: "docker" "inspect" "4644e8c088c533a596fdd2d85aa662829452ebcc8ed82218c6aaadc8d50ca13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4644e8c088c533a596fdd2d85aa662829452ebcc8ed82218c6aaadc8d50ca13f", kill_on_drop: false }`
[INFO] [stdout] 4644e8c088c533a596fdd2d85aa662829452ebcc8ed82218c6aaadc8d50ca13f