[INFO] fetching crate brain_flak_macro 0.1.1...
[INFO] checking brain_flak_macro-0.1.1 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate brain_flak_macro 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate brain_flak_macro 0.1.1 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e936f7fd4e3d3cbd1d04ff61bf16a5cf00a141315c59ae852d7f49fbb6bbc0e
[INFO] running `Command { std: "docker" "start" "-a" "5e936f7fd4e3d3cbd1d04ff61bf16a5cf00a141315c59ae852d7f49fbb6bbc0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e936f7fd4e3d3cbd1d04ff61bf16a5cf00a141315c59ae852d7f49fbb6bbc0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e936f7fd4e3d3cbd1d04ff61bf16a5cf00a141315c59ae852d7f49fbb6bbc0e", kill_on_drop: false }`
[INFO] [stdout] 5e936f7fd4e3d3cbd1d04ff61bf16a5cf00a141315c59ae852d7f49fbb6bbc0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b800f74d04bdb18234bccc6e45d4dfc0332fa469223e574838a9bd29e6d8b1c
[INFO] running `Command { std: "docker" "start" "-a" "8b800f74d04bdb18234bccc6e45d4dfc0332fa469223e574838a9bd29e6d8b1c", 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 - $active;
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 379 | /         brain_flak! { &mut vec =>
[INFO] [stdout] 380 | |             ([({}<([({}(<()>))<>](<()>))<>>)<>]){({}[()]<(({})<({}{})>)>)<>}{}{}<>{}{}{}<>
[INFO] [stdout] 381 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: this warning originates in the macro `$crate::internal_simple` (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 0.31s
[INFO] running `Command { std: "docker" "inspect" "8b800f74d04bdb18234bccc6e45d4dfc0332fa469223e574838a9bd29e6d8b1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b800f74d04bdb18234bccc6e45d4dfc0332fa469223e574838a9bd29e6d8b1c", kill_on_drop: false }`
[INFO] [stdout] 8b800f74d04bdb18234bccc6e45d4dfc0332fa469223e574838a9bd29e6d8b1c