[INFO] cloning repository https://github.com/emturner/mal-rustc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emturner/mal-rustc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femturner%2Fmal-rustc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femturner%2Fmal-rustc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ae515fdbf1b8185fa85e4db7e46f85e84344019
[INFO] testing emturner/mal-rustc against 1.52.1 for beta-1.52-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femturner%2Fmal-rustc" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emturner/mal-rustc on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/emturner/mal-rustc
[INFO] finished tweaking git repo https://github.com/emturner/mal-rustc
[INFO] tweaked toml for git repo https://github.com/emturner/mal-rustc written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/emturner/mal-rustc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d11f91c44f246b83aa793150b155a87e2e9bf604fa1d43b25cc82780be0808be
[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" "d11f91c44f246b83aa793150b155a87e2e9bf604fa1d43b25cc82780be0808be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d11f91c44f246b83aa793150b155a87e2e9bf604fa1d43b25cc82780be0808be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d11f91c44f246b83aa793150b155a87e2e9bf604fa1d43b25cc82780be0808be", kill_on_drop: false }`
[INFO] [stdout] d11f91c44f246b83aa793150b155a87e2e9bf604fa1d43b25cc82780be0808be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 979410a6cb9a5bc92842ad0b3d26cd2e55cfbb0dff00576378cc810628e0a9ed
[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" "979410a6cb9a5bc92842ad0b3d26cd2e55cfbb0dff00576378cc810628e0a9ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling mal_rustc_core v0.1.0 (/opt/rustwide/workdir/mal_rustc_core)
[INFO] [stderr]    Compiling step0_repl v0.1.0 (/opt/rustwide/workdir/step0_repl)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> mal_rustc_core/src/types/mod.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 (quote!(MalAtom::HashMap(Rc::new(std::collections::HashMap::new()))))
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling step2_eval v0.1.0 (/opt/rustwide/workdir/step2_eval)
[INFO] [stderr]    Compiling step1_read_print v0.1.0 (/opt/rustwide/workdir/step1_read_print)
[INFO] [stderr]    Compiling step3_env v0.1.0 (/opt/rustwide/workdir/step3_env)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.28s
[INFO] running `Command { std: "docker" "inspect" "979410a6cb9a5bc92842ad0b3d26cd2e55cfbb0dff00576378cc810628e0a9ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979410a6cb9a5bc92842ad0b3d26cd2e55cfbb0dff00576378cc810628e0a9ed", kill_on_drop: false }`
[INFO] [stdout] 979410a6cb9a5bc92842ad0b3d26cd2e55cfbb0dff00576378cc810628e0a9ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4539393d7f200c68a577de53990afc41cc7af425aece8a8f8eb21d135634320c
[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" "4539393d7f200c68a577de53990afc41cc7af425aece8a8f8eb21d135634320c", kill_on_drop: false }`
[INFO] [stderr]    Compiling step0_repl v0.1.0 (/opt/rustwide/workdir/step0_repl)
[INFO] [stderr]    Compiling mal_rustc_core v0.1.0 (/opt/rustwide/workdir/mal_rustc_core)
[INFO] [stderr]    Compiling step3_env v0.1.0 (/opt/rustwide/workdir/step3_env)
[INFO] [stderr]    Compiling step1_read_print v0.1.0 (/opt/rustwide/workdir/step1_read_print)
[INFO] [stderr]    Compiling step2_eval v0.1.0 (/opt/rustwide/workdir/step2_eval)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> mal_rustc_core/src/types/mod.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 (quote!(MalAtom::HashMap(Rc::new(std::collections::HashMap::new()))))
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> mal_rustc_core/src/types/mod.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 (quote!(MalAtom::HashMap(Rc::new(std::collections::HashMap::new()))))
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.66s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4539393d7f200c68a577de53990afc41cc7af425aece8a8f8eb21d135634320c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4539393d7f200c68a577de53990afc41cc7af425aece8a8f8eb21d135634320c", kill_on_drop: false }`
[INFO] [stdout] 4539393d7f200c68a577de53990afc41cc7af425aece8a8f8eb21d135634320c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92ca3bb38c08cec347d7e7f9bd8898ada22088fd078da9b5436ac1eb0e43ee5a
[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" "92ca3bb38c08cec347d7e7f9bd8898ada22088fd078da9b5436ac1eb0e43ee5a", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> mal_rustc_core/src/types/mod.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 (quote!(MalAtom::HashMap(Rc::new(std::collections::HashMap::new()))))
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> mal_rustc_core/src/types/mod.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 (quote!(MalAtom::HashMap(Rc::new(std::collections::HashMap::new()))))
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mal_rustc_core-4f446b955437d961)
[INFO] [stdout] running 13 tests
[INFO] [stdout] test parser::tests::capture_comment_ok ... ok
[INFO] [stdout] test parser::tests::capture_whitespace_ok ... ok
[INFO] [stdout] test parser::tests::parse_book_ok ... ok
[INFO] [stdout] test parser::tests::parse_false_ok ... ok
[INFO] [stdout] test parser::tests::parse_nil_err ... ok
[INFO] [stdout] test parser::tests::parse_int_err ... ok
[INFO] [stdout] test parser::tests::parse_int_ok ... ok
[INFO] [stdout] test parser::tests::parse_true_ok ... ok
[INFO] [stdout] test parser::tests::parse_string_ok ... ok
[INFO] [stdout] test parser::tests::parse_symbol_ok ... ok
[INFO] [stdout] test parser::tests::parse_nil_ok ... ok
[INFO] [stdout] test parser::tests::parse_true_err ... ok
[INFO] [stdout] test parser::tests::parse_false_err ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/step0_repl-cf9748a1e75a4e97)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/step1_read_print-30d90a22aaa48b56)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/step2_eval-0e5677b53f17c4be)
[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] [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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/step3_env-72a97c6ac4af9640)
[INFO] [stderr]    Doc-tests mal_rustc_core
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/mal_rustc_core/src/types/mod.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 (quote!(MalAtom::HashMap(Rc::new(std::collections::HashMap::new()))))
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "92ca3bb38c08cec347d7e7f9bd8898ada22088fd078da9b5436ac1eb0e43ee5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ca3bb38c08cec347d7e7f9bd8898ada22088fd078da9b5436ac1eb0e43ee5a", kill_on_drop: false }`
[INFO] [stdout] 92ca3bb38c08cec347d7e7f9bd8898ada22088fd078da9b5436ac1eb0e43ee5a