[INFO] updating cached repository https://github.com/hukumka/interactives
[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] f8fd54ec762fcf4aece15bc0be52234f8fbbf392
[INFO] testing hukumka/interactives against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhukumka%2Finteractives" "/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/hukumka/interactives on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] Blocking waiting for file lock on package cache
[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=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "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] 9237b1a8a4e9b9c14d6f80228254633a28bdf0b663f3e356d878cd1d587d0310
[INFO] running `"docker" "start" "-a" "9237b1a8a4e9b9c14d6f80228254633a28bdf0b663f3e356d878cd1d587d0310"`
[INFO] [stderr] Compiling libc v0.2.69
[INFO] [stderr] Compiling unicode-xid v0.2.0
[INFO] [stderr] Compiling memchr v2.3.3
[INFO] [stderr] Compiling serde v1.0.106
[INFO] [stderr] Compiling ryu v1.0.4
[INFO] [stderr] Compiling log v0.4.8
[INFO] [stderr] Compiling lazy_static v1.4.0
[INFO] [stderr] Compiling regex-syntax v0.6.17
[INFO] [stderr] Compiling cfg-if v0.1.10
[INFO] [stderr] Compiling unicode-width v0.1.7
[INFO] [stderr] Compiling itoa v0.4.5
[INFO] [stderr] Compiling vec_map v0.8.1
[INFO] [stderr] Compiling ansi_term v0.11.0
[INFO] [stderr] Compiling thread_local v1.0.1
[INFO] [stderr] Compiling textwrap v0.11.0
[INFO] [stderr] Compiling proc-macro2 v1.0.10
[INFO] [stderr] Compiling aho-corasick v0.7.10
[INFO] [stderr] Compiling quote v1.0.3
[INFO] [stderr] Compiling atty v0.2.14
[INFO] [stderr] Compiling rand v0.4.6
[INFO] [stderr] Compiling syn v1.0.18
[INFO] [stderr] Compiling clap v2.33.0
[INFO] [stderr] Compiling rand v0.3.23
[INFO] [stderr] Compiling hamt-rs v0.3.0
[INFO] [stderr] Compiling regex v1.3.7
[INFO] [stderr] Compiling pest_generator v2.1.3
[INFO] [stderr] Compiling env_logger v0.6.2
[INFO] [stderr] Compiling pest_derive v2.1.0
[INFO] [stderr] Compiling serde_json v1.0.51
[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 27s
[INFO] running `"docker" "inspect" "9237b1a8a4e9b9c14d6f80228254633a28bdf0b663f3e356d878cd1d587d0310"`
[INFO] running `"docker" "rm" "-f" "9237b1a8a4e9b9c14d6f80228254633a28bdf0b663f3e356d878cd1d587d0310"`
[INFO] [stdout] 9237b1a8a4e9b9c14d6f80228254633a28bdf0b663f3e356d878cd1d587d0310
[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=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "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] e14f0447122cc747a2ba1bd6ad49cb6c30a50f1260558a34a8d358bed51c04e9
[INFO] running `"docker" "start" "-a" "e14f0447122cc747a2ba1bd6ad49cb6c30a50f1260558a34a8d358bed51c04e9"`
[INFO] [stderr] Compiling interactive_c v0.1.0 (/opt/rustwide/workdir)
[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 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