[INFO] crate brainheck 0.1.8 is already in cache
[INFO] testing brainheck-0.1.8 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate brainheck 0.1.8 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate brainheck 0.1.8 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate brainheck 0.1.8
[INFO] finished tweaking crates.io crate brainheck 0.1.8
[INFO] tweaked toml for crates.io crate brainheck 0.1.8 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] f4c2cf9b8f54ef52c853d583ca84dfdbb7bdbea05a6c54708e4007588ca6e29b
[INFO] running `"docker" "start" "-a" "f4c2cf9b8f54ef52c853d583ca84dfdbb7bdbea05a6c54708e4007588ca6e29b"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling brainheck v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]   --> src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[macro_use] 
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.40s
[INFO] running `"docker" "inspect" "f4c2cf9b8f54ef52c853d583ca84dfdbb7bdbea05a6c54708e4007588ca6e29b"`
[INFO] running `"docker" "rm" "-f" "f4c2cf9b8f54ef52c853d583ca84dfdbb7bdbea05a6c54708e4007588ca6e29b"`
[INFO] [stdout] f4c2cf9b8f54ef52c853d583ca84dfdbb7bdbea05a6c54708e4007588ca6e29b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 0229f3de33e49669d7d5753d3691604b144fbe5e8a6d5a4ee288d89fe349b97d
[INFO] running `"docker" "start" "-a" "0229f3de33e49669d7d5753d3691604b144fbe5e8a6d5a4ee288d89fe349b97d"`
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]   --> src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[macro_use] 
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling brainheck v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0507]: cannot move out of `helloworld_src`, a captured variable in an `FnMut` closure
[INFO] [stderr]   --> src/test.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut helloworld_src = String::new();
[INFO] [stderr]    |         ------------------ captured outer variable
[INFO] [stderr] ...
[INFO] [stderr] 21 |     b.iter(|| brainheck(helloworld_src, fake_std_in));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^ move occurs because `helloworld_src` has type `std::string::String`, which does not implement the `Copy` trait
[INFO] [stderr] 
[INFO] [stderr] error[E0507]: cannot move out of `fake_std_in`, a captured variable in an `FnMut` closure
[INFO] [stderr]   --> src/test.rs:21:41
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let fake_std_in = String::new();
[INFO] [stderr]    |         ----------- captured outer variable
[INFO] [stderr] 21 |     b.iter(|| brainheck(helloworld_src, fake_std_in));
[INFO] [stderr]    |                                         ^^^^^^^^^^^ move occurs because `fake_std_in` has type `std::string::String`, which does not implement the `Copy` trait
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0507`.
[INFO] [stderr] error: could not compile `brainheck`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0229f3de33e49669d7d5753d3691604b144fbe5e8a6d5a4ee288d89fe349b97d"`
[INFO] running `"docker" "rm" "-f" "0229f3de33e49669d7d5753d3691604b144fbe5e8a6d5a4ee288d89fe349b97d"`
[INFO] [stdout] 0229f3de33e49669d7d5753d3691604b144fbe5e8a6d5a4ee288d89fe349b97d