[INFO] fetching crate brain_flak_macro 0.1.1...
[INFO] checking brain_flak_macro-0.1.1 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] extracting crate brain_flak_macro 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate brain_flak_macro 0.1.1 on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate brain_flak_macro 0.1.1
[INFO] finished tweaking crates.io crate brain_flak_macro 0.1.1
[INFO] tweaked toml for crates.io crate brain_flak_macro 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a900d1c4984424a3d829837eda5316b337e0a5ceae1b06430652ad82b106cb1
[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" "7a900d1c4984424a3d829837eda5316b337e0a5ceae1b06430652ad82b106cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a900d1c4984424a3d829837eda5316b337e0a5ceae1b06430652ad82b106cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a900d1c4984424a3d829837eda5316b337e0a5ceae1b06430652ad82b106cb1", kill_on_drop: false }`
[INFO] [stdout] 7a900d1c4984424a3d829837eda5316b337e0a5ceae1b06430652ad82b106cb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1cba6c65b8360eef15febbfc6ce3fb5df1c6e2e246c39d1d4cdce772c3b3aef
[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" "d1cba6c65b8360eef15febbfc6ce3fb5df1c6e2e246c39d1d4cdce772c3b3aef", kill_on_drop: false }`
[INFO] [stderr]     Checking brain_flak_macro v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `active` is never read
[INFO] [stdout]    --> src/lib.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |           $active = 1 - $active;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 379 | /         brain_flak! { &mut vec =>
[INFO] [stdout] 380 | |             ([({}<([({}(<()>))<>](<()>))<>>)<>]){({}[()]<(({})<({}{})>)>)<>}{}{}<>{}{}{}<>
[INFO] [stdout] 381 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: this warning originates in a macro (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 dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "d1cba6c65b8360eef15febbfc6ce3fb5df1c6e2e246c39d1d4cdce772c3b3aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1cba6c65b8360eef15febbfc6ce3fb5df1c6e2e246c39d1d4cdce772c3b3aef", kill_on_drop: false }`
[INFO] [stdout] d1cba6c65b8360eef15febbfc6ce3fb5df1c6e2e246c39d1d4cdce772c3b3aef