[INFO] cloning repository https://github.com/hukumka/interactives
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hukumka/interactives" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhukumka%2Finteractives", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhukumka%2Finteractives'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8fd54ec762fcf4aece15bc0be52234f8fbbf392
[INFO] testing hukumka/interactives against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhukumka%2Finteractives" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hukumka/interactives on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hukumka/interactives
[INFO] finished tweaking git repo https://github.com/hukumka/interactives
[INFO] tweaked toml for git repo https://github.com/hukumka/interactives written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b78eecfa8b70513ee752b560ddaa810253b19fd1cf4b745bfd50bce254fc0d3
[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" "6b78eecfa8b70513ee752b560ddaa810253b19fd1cf4b745bfd50bce254fc0d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b78eecfa8b70513ee752b560ddaa810253b19fd1cf4b745bfd50bce254fc0d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b78eecfa8b70513ee752b560ddaa810253b19fd1cf4b745bfd50bce254fc0d3", kill_on_drop: false }`
[INFO] [stdout] 6b78eecfa8b70513ee752b560ddaa810253b19fd1cf4b745bfd50bce254fc0d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a8381f87efd8e2544271143f6aed93342335c44a895d12b34cecbc3f4c40683
[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" "0a8381f87efd8e2544271143f6aed93342335c44a895d12b34cecbc3f4c40683", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling hamt-rs v0.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling handlebars v1.1.0
[INFO] [stderr]    Compiling interactive_c v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "0a8381f87efd8e2544271143f6aed93342335c44a895d12b34cecbc3f4c40683", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a8381f87efd8e2544271143f6aed93342335c44a895d12b34cecbc3f4c40683", kill_on_drop: false }`
[INFO] [stdout] 0a8381f87efd8e2544271143f6aed93342335c44a895d12b34cecbc3f4c40683
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] ca83750703d07de30db8bd37280c2d7dd7613b70f1840658d6b62a0b4b067d50
[INFO] running `Command { std: "docker" "start" "-a" "ca83750703d07de30db8bd37280c2d7dd7613b70f1840658d6b62a0b4b067d50", kill_on_drop: false }`
[INFO] [stderr]    Compiling interactive_c v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/syntax_tree.rs:854:17
[INFO] [stdout]      |
[INFO] [stdout] 854  |             let mut $walker_name = _tree.walker();
[INFO] [stdout]      |                 ----^^^^^^^^^^^^
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 1398 |         new_walker!{let mut walker = "int x=0; int x(int a){return a + 4; for(int i=0; i<a; ++i) a += 3 * 4;}";}
[INFO] [stdout]      |         -------------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]      = note: this warning originates in the macro `new_walker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.90s
[INFO] running `Command { std: "docker" "inspect" "ca83750703d07de30db8bd37280c2d7dd7613b70f1840658d6b62a0b4b067d50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca83750703d07de30db8bd37280c2d7dd7613b70f1840658d6b62a0b4b067d50", kill_on_drop: false }`
[INFO] [stdout] ca83750703d07de30db8bd37280c2d7dd7613b70f1840658d6b62a0b4b067d50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3c0758841527e41866216378aeef4cad304015569b1afb2e47dde3c58e8293ec
[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" "3c0758841527e41866216378aeef4cad304015569b1afb2e47dde3c58e8293ec", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/syntax_tree.rs:854:17
[INFO] [stderr]      |
[INFO] [stderr] 854  |             let mut $walker_name = _tree.walker();
[INFO] [stderr]      |                 ----^^^^^^^^^^^^
[INFO] [stderr]      |                 |
[INFO] [stderr]      |                 help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 1398 |         new_walker!{let mut walker = "int x=0; int x(int a){return a + 4; for(int i=0; i<a; ++i) a += 3 * 4;}";}
[INFO] [stderr]      |         -------------------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr]      = note: this warning originates in the macro `new_walker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/interactive_c-aa7b62f33e54dbbd)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test bracket_tree::tests::test_new_bracket_tree ... ok
[INFO] [stdout] test bracket_tree::tests::test_walker ... ok
[INFO] [stdout] test lexer::tests::test_lexing_bracket ... ok
[INFO] [stdout] test syntax_tree::tests::test_expression_base_parse ... ok
[INFO] [stdout] test syntax_tree::tests::test_expression_parse_simple ... ok
[INFO] [stdout] test lexer::tests::test_mixed ... ok
[INFO] [stdout] test syntax_tree::tests::test_function_pointer_variable_parse ... ok
[INFO] [stdout] test syntax_tree::tests::test_root_parse ... ok
[INFO] [stdout] test lexer::tests::test_lexing_name ... ok
[INFO] [stdout] test syntax_tree::tests::test_statement_parse ... ok
[INFO] [stdout] test lexer::tests::bench_tokenize ... ok
[INFO] [stdout] test syntax_tree::tests::test_parse_block ... ok
[INFO] [stdout] test syntax_tree::tests::test_expression_parse ... ok
[INFO] [stdout] test bracket_tree::tests::bench_bracket_tree ... ok
[INFO] [stdout] test lexer::tests::test_lexing_operator ... ok
[INFO] [stdout] test syntax_tree::tests::bench_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c0758841527e41866216378aeef4cad304015569b1afb2e47dde3c58e8293ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0758841527e41866216378aeef4cad304015569b1afb2e47dde3c58e8293ec", kill_on_drop: false }`
[INFO] [stdout] 3c0758841527e41866216378aeef4cad304015569b1afb2e47dde3c58e8293ec